# Scattergood Generating Station



# Appendix A Physical Oceanographic Data

A1. Source Water Currents A2. Source Water Temperatures from ADCP Instruments

### Scattergood Generating Station

IM&E Final Report Appendix A1: Source Water Currents

A1 - 1 

# Appendix A1 Source Water Currents
Physical oceanographic data were collected from the source water body to describe current regimes that can affect larval transport in the vicinity of the SGS. Two Nortek Aquadopp® acoustic Doppler current profilers (ADCPs) were positioned in separate locations, one (CM 3) approximately 2.3 km (1.4 mi) from shore at a depth of

24.4 m (

80.0 ft) MLLW, and a second unit (CM 4) approximately 1.1 km (2.0 mi) from at a depth of

– 12.8 m (

41.9 ft) MLLW. The latitudes and longitudes of the two stations were 33.89020oN,

-118.44324oW and 33.89442oN,

-118.43126oW. Both stations were commissioned on January 10, 2006. Station CM 3 was decommissioned on January 12, 2007 and Station CM 4 was decommissioned on January 22, 2007. Data were downloaded on February 3, 2006, May 3, 2006, and July 18, 2006, and September 1, 2006. The unit at CM 4 had an operating frequency of 1 MHz, while the unit at CM 3 had an operating frequency of 600 kHz (Table A1

- 1). Both units collected data at hourly intervals in a usable range that extended from 0.5 m (1.6 ft) from the ADCP to somewhat less than 90% of the distance to the surface. The half

- power full beam

-width was 2.4 degrees for both units. Water temperature and water depth (pressure) were also measured concurrently by the units. Water temperatures were calibrated over an approximately four

-month period f rom September 2006 to January 2007 using two calibrated Starr

-Oddi thermistors. Pressure measurements were adjusted using barometric pressure data measured at the Los Angeles International Airport and corrected for sea level.

Table A1

- 1. ADCP deployment parameters for current meters in the vicinity of SGS (Stations CM 3 and CM 4).

Unit Oper.

Freq. Deploy

depth (m) Cells (#) Cell size (m) Max. range (m) Cell

precision (cm/s) Ping rate Averaging Interval (s) Repetition

rate (hr) CM 3 600 kHz 24.4 15 1.0 15 1.4 100% 280 1.0 CM 4 1 MHZ 12.8 26 1.0 26 0.8 87% 180 1.0

### Scattergood Generating Station

IM&E Final Report Appendix A1: Source Water Currents

A1 - 2 Figure A1 -1 . Hourly estimates of water column speed and direction at location CM 3, January to April 2006. Frequency is number of hourly observations.

### Scattergood Generating Station

IM&E Final Report Appendix A1: Source Water Currents

A1 - 3 Figure A1 -2 . Hourly estimates of water column speed and direction at location CM 3, May to August 2006. Frequency is number of hourly observations.

### Scattergood Generating Station

IM&E Final Report Appendix A1: Source Water Currents

A1 -4 Figure A1 -3 . Hourly estimates of water column speed and direction at location CM 3, September to December 2006. Frequency is number of hourly observations.

### Scattergood Generating Station

IM&E Final Report Appendix A1: Source Water Currents

A1 - 5 Figure A1 -4 . Hourly estimates of water column speed and direction at location CM 3, January 2007. Frequency is number of hourly observations.a

### Scattergood Generating Station

IM&E Final Report Appendix A1: Source Water Currents

A1 - 6 Figure A1 -5 . Hourly estimates of water column speed and direction at location CM 4, January to April 2006. Frequency is number of hourly observations.

### Scattergood Generating Station

IM&E Final Report Appendix A1: Source Water Currents

A1 - 7 Figure A1 -6 . Hourly estimates of water column speed and direction at location CM 4, May to August 2006. Frequency is number of hourly observations

### Scattergood Generating Station

IM&E Final Report Appendix A1: Source Water Currents

A1 - 8 Figure A1 -7 . Hourly estimates of water column speed and direction at location CM 4, September to December 2006. Frequency is number of hourly observations

### Scattergood Generating Station

IM&E Final Report Appendix A1: Source Water Currents

A1 - 9 Figure A1 -8 . Hourly estimates of water column speed and direction at location CM 4, January 2007. Frequency is number of hourly observations

### Scattergood Generating Station

IM&E Final Report Appendix A2: Source Water Temperatures



### A2- 1 

# Appendix A2 Source Water Temperatures from ADCP Instruments

### Scattergood Generating Station

IM&E Final Report Appendix A1: Source Water Temperatures

A2- 2 Figure A2- 1 . Yearly temperature from January 2006 to January 2007 at CM3.

Table A2

- 1. Monthly and yearly mean temperatures recorded from January 2006 through January 2007 at CM3.
Month Mean Standard Dev Max Min January 12.51 0.87 14.70 11.04 February 12.82 0.72 14.98 11.41 March 11.24 0.71 13.20 10.11 April 11.23 0.68 13.74 10.10 May 12.41 0.84 15.79 10.93 June 12.11 0.78 14.76 10.71 July 13.18 1.48 17.44 11.15 August 13.45 0.75 15.93 12.00 September 14.43 1.18 18.60 12.61 October 14.83 0.93 17.05 12.51 November 15.25 0.87 17.26 13.03 December 14.88 0.73 15.93 11.96 January 07 14.05 0.62 15.01 12.43 Total Year 13.24 1.61 18.60 10.10 10 11 12 13 14 15 16 17 18 19

Jan-06 Feb-06 Mar-06 Apr-06 May-06 Jun-06 Jul-06 Aug-06 Sep-06 Oct-06 Nov-06 Dec-06 Jan-07TempC

### Scattergood Generating Station

IM&E Final Report Appendix A1: Source Water Temperatures

A2- 3 Figure A2 -2 . Near

-

bottom temperature and tidal depth from January (top) to February (bottom), 2006 at CM 3.

. 0 2 4 6 8 10 12 14 16 18 20

01/01/06 01/06/06 01/11/06 01/16/06 01/21/06 01/26/06 01/31/06TempC

22 23 24 25 26 27 28 29 30 31 32Depth(m)

Temp Depth

0 2 4 6 8 10 12 14 16 18 20

02/01/06 02/06/06 02/11/06 02/16/06 02/21/06 02/26/06TempC

22 23 24 25 26 27 28 29 30 31 32Depth(m)

Temp Depth

### Scattergood Generating Station

IM&E Final Report Appendix A1: Source Water Temperatures

A2-4 Figure A2 -3 . Near

-

bottom temperature and tidal depth from March (top) to April (bottom), 2006 at CM 3. 0 2 4 6 8 10 12 14 16 18 20

03/01/06 03/06/06 03/11/06 03/16/06 03/21/06 03/26/06 03/31/06TempC

22 23 24 25 26 27 28 29 30 31 32Depth(m)

Temp Depth

0 2 4 6 8 10 12 14 16 18 20

04/01/06 04/06/06 04/11/06 04/16/06 04/21/06 04/26/06TempC

22 23 24 25 26 27 28 29 30 31 32Depth(m)

Temp Depth

### Scattergood Generating Station

IM&E Final Report Appendix A1: Source Water Temperatures

A2- 5 Figure A2-4. Near

-bottom temperature and tidal depth from May (top) to June (bottom), 2006 at CM 3. 0 2 4 6 8 10 12 14 16 18 20

05/01/06 05/06/06 05/11/06 05/16/06 05/21/06 05/26/06 05/31/06TempC

22 23 24 25 26 27 28 29 30 31 32Depth(m)

Temp Depth

0 2 4 6 8 10 12 14 16 18 20

06/02/06 06/07/06 06/12/06 06/17/06 06/22/06 06/27/06TempC

22 23 24 25 26 27 28 29 30 31 32Depth(m)

Temp Depth

### Scattergood Generating Station

IM&E Final Report Appendix A1: Source Water Temperatures

A2- 6 Figure A2-5 . Near

-

bottom temperature and tidal depth from July (top) to August (bottom), 2006 at CM 3. 0 2 4 6 8 10 12 14 16 18 20

07/01/06 07/06/06 07/11/06 07/16/06 07/21/06 07/26/06 07/31/06TempC

22 23 24 25 26 27 28 29 30 31 32Depth(m)

Temp Depth

0 2 4 6 8 10 12 14 16 18 20

08/01/06 08/06/06 08/11/06 08/16/06 08/21/06 08/26/06 08/31/06TempC

22 23 24 25 26 27 28 29 30 31 32Depth(m)

Temp Depth

### Scattergood Generating Station

IM&E Final Report Appendix A1: Source Water Temperatures

A2- 7 Figure A2- 6 . Near

-

bottom temperature and tidal depth from September (top) to October (bottom), 2006 at CM 3. 0 2 4 6 8 10 12 14 16 18 20

09/01/06 09/06/06 09/11/06 09/16/06 09/21/06 09/26/06TempC

22 23 24 25 26 27 28 29 30 31 32Depth(m)

Temp Depth

0 2 4 6 8 10 12 14 16 18 20

10/01/06 10/06/06 10/11/06 10/16/06 10/21/06 10/26/06 10/31/06TempC

22 23 24 25 26 27 28 29 30 31 32Depth(m)

Temp Depth

### Scattergood Generating Station

IM&E Final Report Appendix A1: Source Water Temperatures

A2- 8 Figure A2-7 . Near

-

bottom temperature and tidal depth from November (top) to December (bottom), 2006 at CM 3. 0 2 4 6 8 10 12 14 16 18 20

11/01/06 11/06/06 11/11/06 11/16/06 11/21/06 11/26/06TempC

22 23 24 25 26 27 28 29 30 31 32Depth(m)

Temp Depth

0 2 4 6 8 10 12 14 16 18 20

12/01/06 12/06/06 12/11/06 12/16/06 12/21/06 12/26/06 12/31/06TempC

22 23 24 25 26 27 28 29 30 31 32Depth(m)

Temp Depth

### Scattergood Generating Station

IM&E Final Report Appendix A1: Source Water Temperatures

A2- 9 Figure A2 -8. Near

- bottom temperature and tidal depth from January 2007 at CM 3. 0 2 4 6 8 10 12 14 16 18 20

01/01/07 01/06/07 01/11/07 01/16/07 01/21/07 01/26/07 01/31/07TempC

22 23 24 25 26 27 28 29 30 31 32Depth(m)

Temp Depth

### Scattergood Generating Station

IM&E Final Report Appendix A1: Source Water Temperatures

A2 -10 Figure A2 - 9. Annual temperature from January 2006 to January 2007 at CM 4.

Table A2

- 2. Monthly and yearly mean temperatures recorded from January 2006 through January 2007 at CM4.
Month Mean Standard Dev Max Min January 13.21 0.93 14.92 11.45 February 13.74 0.66 15.35 12.13 March 12.23 1.87 14.11 10.41 April 12.55 0.93 15.16 10.49 May 14.27 1.28 17.82 11.98 June 14.53 1.65 19.23 11.19 July 15.24 1.91 20.67 12.30 August 15.93 1.59 20.12 13.03 September 16.15 1.32 19.43 13.68 October 16.53 0.93 18.63 13.28 November 16.54 0.81 17.87 13.44 December 15.38 0.56 16.16 12.89 January 07 14.32 0.39 15.25 12.82 Total Year 14.71 1.83 20.67 10.41 10 11 12 13 14 15 16 17 18 19 20 21

Jan-06 Feb-06 Mar-06 Apr-06 May-06 Jun-06 Jul-06 Aug-06 Sep-06 Oct-06 Nov-06 Dec-06 Jan-07TempC

### Scattergood Generating Station

IM&E Final Report Appendix A1: Source Water Temperatures

A2 -11 Figure A2 -10. Near

-bottom temperature and tidal depth from January (top) to February (bottom) 2006 at CM 4. 0 2 4 6 8 10 12 14 16 18 20

01/01/06 01/06/06 01/11/06 01/16/06 01/21/06 01/26/06 01/31/06TempC

10 11 12 13 14 15 16 17 18 19 20Depth(m)

Temp Depth

0 2 4 6 8 10 12 14 16 18 20

02/01/06 02/06/06 02/11/06 02/16/06 02/21/06 02/26/06TempC

10 11 12 13 14 15 16 17 18 19 20Depth(m)

Temp Depth

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IM&E Final Report Appendix A1: Source Water Temperatures

A2 -12 Figure A2- 11. Near

-bottom temperature and tidal depth from March (top) to April (bottom) 2006 at CM 4. 0 2 4 6 8 10 12 14 16 18 20

03/01/06 03/06/06 03/11/06 03/16/06 03/21/06 03/26/06 03/31/06TempC

10 11 12 13 14 15 16 17 18 19 20Depth(m)

Temp Depth

0 2 4 6 8 10 12 14 16 18 20

04/01/06 04/06/06 04/11/06 04/16/06 04/21/06 04/26/06TempC

10 11 12 13 14 15 16 17 18 19 20Depth(m)

Temp Depth

### Scattergood Generating Station

IM&E Final Report Appendix A1: Source Water Temperatures

A2 -13 Figure A2 - 12. Near

-

bottom temperature and tidal depth from May (top) to June (bottom) 2006 at CM 4. 0 2 4 6 8 10 12 14 16 18 20

05/01/06 05/06/06 05/11/06 05/16/06 05/21/06 05/26/06 05/31/06TempC

10 11 12 13 14 15 16 17 18 19 20Depth(m)

Temp Depth

0 2 4 6 8 10 12 14 16 18 20

06/02/06 06/07/06 06/12/06 06/17/06 06/22/06 06/27/06TempC

10 11 12 13 14 15 16 17 18 19 20Depth(m)

Temp Depth

### Scattergood Generating Station

IM&E Final Report Appendix A1: Source Water Temperatures

A2 -14 Figure A2-13. Near

-bottom temperature and tidal depth from July (top) to August (bottom) 2006 at CM 4. 0 2 4 6 8 10 12 14 16 18 20 22

07/01/06 07/06/06 07/11/06 07/16/06 07/21/06 07/26/06 07/31/06TempC

10 11 12 13 14 15 16 17 18 19 20Depth(m)

Temp Depth

0 2 4 6 8 10 12 14 16 18 20 22

08/01/06 08/06/06 08/11/06 08/16/06 08/21/06 08/26/06 08/31/06TempC

10 11 12 13 14 15 16 17 18 19 20Depth(m)

Temp Depth

### Scattergood Generating Station

IM&E Final Report Appendix A1: Source Water Temperatures

A2 -15 Figure A2 - 14. Near

-

bottom temperature and tidal depth from September (top) to October (bottom) 2006 at CM 4. 0 2 4 6 8 10 12 14 16 18 20

09/01/06 09/06/06 09/11/06 09/16/06 09/21/06 09/26/06TempC

10 11 12 13 14 15 16 17 18 19 20Depth(m)

Temp Depth

0 2 4 6 8 10 12 14 16 18 20

10/01/06 10/06/06 10/11/06 10/16/06 10/21/06 10/26/06 10/31/06TempC

10 11 12 13 14 15 16 17 18 19 20Depth(m)

Temp Depth

### Scattergood Generating Station

IM&E Final Report Appendix A1: Source Water Temperatures

A2 -16 Figure A2- 15. Near

-

bottom temperature and tidal depth from November (top) to December (bottom) 2006 at CM 4. 0 2 4 6 8 10 12 14 16 18 20

11/01/06 11/06/06 11/11/06 11/16/06 11/21/06 11/26/06TempC

10 11 12 13 14 15 16 17 18 19 20Depth(m)

Temp Depth

0 2 4 6 8 10 12 14 16 18 20

12/01/06 12/06/06 12/11/06 12/16/06 12/21/06 12/26/06 12/31/06TempC

10 11 12 13 14 15 16 17 18 19 20Depth(m)

Temp Depth

### Scattergood Generating Station

IM&E Final Report Appendix A1: Source Water Temperatures

A2 -17 Figure A2 - 16. Near

-

bottom temperature and tidal depth during January 2007 at CM 4. 0 2 4 6 8 10 12 14 16 18 20

01/01/07 01/06/07 01/11/07 01/16/07 01/21/07 01/26/07 01/31/07TempC

10 11 12 13 14 15 16 17 18 19 20Depth(m)

Temp Depth

# Scattergood Generating Station



# Appendix B Field Sampling and Sample Processing Procedures

B1. Entrainment Field Sampling B2. Entrainment Sample Sorting B3. Entrainment Sample Identification B4. Impingement Field Sampling

### Scattergood Generating Station

IM&E Final Report Appendix B1: Entrainment Sampling Procedures

B1 - 2 APPENDIX B1: PROCEDURE FOR COLLECTING PLANKTON SAMPLES FOR ENTRAINMENT STUDIES 1.0 PURPOSE The purpose of this document is to define the steps and equipment necessary to accurately collect plankton samples using a wheeled bongo frame near the Scattergood Generating Station (SGS). 

### 2.0 RESPONSIBILITIES
2.1 Task/Field leader:

 Notify the station of the proposed sampling dates.

 Schedule and coordinate sampling surveys and notifying the U.S. Coast Guard prior to sampling.

 Verify that all investigating biologists conducting the sampling have read and understand these procedures.

 Verify that procedures have been followed during sample collection and that the sampling has been conducted safely.

 Verify that information on data sheets have been reviewed and properly recorded.
2.2 Investigating biologist:

 Conduct sampling using the following procedures. 

### 3.0 SGS CONTACT INFORMATION

Name Cell/Outside Line E -mail Information Gary Laney (310) 524

-8506 Gary.Laney@ladwp.com John Abdelmalak (310) 524

-8503 John.Abdelmalak@ladwp.com Control Room (310) 52 4

-8510 On

-site # 48510 On

-Site Emergency Number (310) 524

-8300 On

-site # 48300 

### 4.0 PROCEDURES

4.1 Mobilization

 Notify plant personnel of the dates of field sampling prior to the sampling day.

 Ensure there are enough jars, labels, and preservative (formalin) for the sample collection. Print the required number of blank field data sheets on waterproof paper.

 Inspect the wheeled bongo frame, nets and codends for any damage. If damaged, repairs must be made before sampling begins. Ensure that the flowmeters hav e been calibrated within the past 90 days and that they are operational. Attach a flowmeter in approximately the center of each frame mouth.

 Ensure that all additional equipment (Table 1) is in good operating condition. Make repairs if necessary. 4.2 Sample Collection

### Scattergood Generating Station

IM&E Final Report Appendix B1: Entrainment Sampling Procedures

B1 - 3  Samples will be collected every six hours in a 24

- hr period (four cycles) according to the schedule developed by the Task Leader. A survey team consists of at least a boat driver and two investigating biologists to conduct the sampling.

 Locate th

e station using the latitude/longitude coordinates. Determine the water depth with the fathometer and record the water depth on the field data sheet.

 Ensure that the winch line and a weight (15

- 20 lb salmon ball) are securely attached to the center of the bongo frame. Ensure that the nets, codends and flowmeters are securely attached. The nets should be 333

-μm mesh.

 Record each flowmeter’s serial number on the field data sheet (Attachment 1). Record the number from the flowmeter counter spins on the field data sheet prior to lowering the frame into the water. Record the start time (local time) on the field data sheet.

 Using the measured marks on the winch cable, lower the frame and nets through the water column until the wheels on the sides of the frame are on the bottom. When the cable starts to slack, the boat is motored forward and the cable is retrieved trying to maintain a 45

-degree tow angle. When the frame reaches the surface, carefully pull it into the boat. Verify that the nets have not picked up any sediment from the bottom. If there is any sediment in the nets or codends, discard both samples by detaching the codends and rinsing the nets of collected material and then reattach the codends. Repeat the sample collection at that station.

 Check that the number of spins on each flowmeter counter to verify that the target volume of 15

-20 m3 has been collected (number of spins should be about 2,000). If the target volume has not been met with one tow, subsequent tows will be performed at the station until t he target volume has been collected.

 If the correct volume has been collected record the end number of spins from each flowmeter on the field data sheet. Subtract the initial number of spins from the end number and record the total on the field data sheet

. If the integrity of either or both flowmeter readings is questionable (e.g., seaweed wrapped around the propellers), discard both samples by detaching the codends and rinsing the nets of collected material and then reattach the codends. Repeat the sample collection at that station.

 Record the end time (local time) on the field data sheet.

 Beginning at the top of the net, rinse the collected material down into the codend. Since the wash water is not filtered and may contain plankton, rinse the net from the outside ensuring that unfiltered water does not contaminate the sample. Inspect the net to ensure that it has been thoroughly rinsed. Samples will then be carefully transferred to prelabeled jars with preprinted internal labels. The sample from each net w

ill be placed in separate labeled jars.

 Detach the codend from net #1 and rinse the sample from the codend into a labeled sample jar using a squirt bottle containing sea water. Then, using a graduated cylinder or other measuring device, add enough formalin to make a 10%

- formalin seawater solution. Rinse and inspect the codend of net #1 before reattaching to the net. Follow the same procedure for net #2. Sample preservation should be completed soon after collection.

 If the collected material will fill over 1⁄2 of the sample jar, split the sample into at least two labeled jars so that there is enough ethanol for proper preservation.

 Ensure that the sample jar contains both an inner label and an exterior label.

 The following is an explanation of the coding for t he field datasheet survey and station numbers and jar labels: a) Each survey number on the data sheet consists of a series of 5 letters followed by 2 numbers (SMBEA##). The first three letters are “SMB” refers to Santa Monica Bay, and the “EA” refers to entra inment abundance. The two numbers refer to the survey number with the first survey being 01. The survey number increases by one for each new 24

- hour sampling effort.

### Scattergood Generating Station

IM&E Final Report Appendix B1: Entrainment Sampling Procedures

B1 -4 b) The station designation consists of a letter

- number

-letter

-number combination. This letter /numbering system was set up for all three Santa Monica Bay generating stations (Scattergood, El Segundo, and Redondo Beach). The first letter refers to the station being an Outer, Mid, Shore, Harbor, or Entrainment station (see map in Attachment 2). The f irst number refers to the number of the station that links to the station letter. The numbers for each of the stations listed above are as follows:

Station letter Station number Outer 1

- 5 Mid 1

- 3 Shore 1

- 7 Harbor 1

- 2 Entrainment 1

- 4 c) Entrainment Stati

on E1 is located near Scattergood’s intake structure, E2 and E3 are at El Segundo, and E4 is at Redondo Beach. d) The second letter designates the replicate, either “A” or “B”. The source water stations only have one sample so always use the letter “A”. There are two samples collected at the entrainment location so the letters “A” and “B” will be used to separate these two replicates. The second number designates the net number, either “1” or “2.” For example, O3A1 means that the sample was collected from Stat

ion O3, Sample A, and Net 1. e) The date of sampling will correspond to the actual start date of each sample. At the start of a new day (midnight), use a new field data sheet.

 Deliver the samples to the laboratory at the completion of the sampling effort.

4.3 Sample Voiding in the Field

 Samples should be voided if any of the following occurs: 1) possible flowmeter obstruction due to kelp or other debris on the propeller, 2) obviously malfunctioning or damaged flowmeters; 3) damaged (torn) nets found after a sa mple is collected; 4) large quantities of sediment in the net that were collected when the wheeled bongo frame was on the bottom; 5) gear failure which prevents completion of any tows/hauls; 6) an incident or situation which may prevent reliable data collection; 7) an incident or situation which may jeopardize the safety of sampling personnel.

 If a hole or tear is found in the net mesh, mark the damaged area and either repair or replace the net. Discard both samples and repeat the sample collection. Record this on the data sheet.

 The number of flowmeter spins from the paired bongo nets needs to be checked in the field to confirm that the measured volumes were similar. 

### 5.0 ATTACHMENTS 5.1 Equipment List 5.2 Field Datasheet for Santa Monica Bay Station Sampling 5.3 Map of Sa

nta Monica Bay Stations 5.4

### Scattergood Generating Station

IM&E Final Report Appendix B1: Entrainment Sampling Procedures

B1 - 5 Attachment 5.1. Equipment List.

1. Wheeled bongo net frame, attached 333/335 micron mesh nets, codends, and calibrated flowmeters (include at least 1 back up net and flowmeter) 2. Winch (davits) and line for net deployment and retrieval 3. Stock solution of formalin 4. Squeeze bottles 5. Labeled jars for sample storage 6. Data sheets, pencils, permanent markers, and labels 7. Wash

-down pump 8. Watch 9. Fathometer 10. GPS

### Scattergood Generating Station

IM&E Final Report Appendix B1: Entrainment Sampling Procedures

B1 - 6 Attachment 5.2 . Example field datasheet for Santa Monica Bay station sampling.

Santa Monica Bay Entrainment Abundance Field Data Sheet - El Segundo (ESGS), Redondo Beach (RBGS), & Scattergood (SGS)
Sheet #: Date: Mesh: Flowmeter 1: Conversion 1: Survey #: S M B E A Crew: Net Dia.: Flowmeter 2: Conversion 2:

Station Flowmeter

Start Flowmeter

End
1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 Survey: SMBEA## (S anta M onica Bay E ntrainment A bundance) NOTES: Date: MM/DD/YY Station: A#A# A#: (Station Designation - O uter 1-5, M id 1-3, Harbor 1-2, Shore 1-7 or E ntrainment 1-2) A (Replicate A or B - Only Entrainment samples have two replicates) #: (Net 1 or 2) Tide: E bb, F lood, H igh Slack (HS), or L ow Slack (LS) Reviewed By / Date: Entered By / Date: Copied By / Date: 0.335 mm

(ft) (PST) Station Depth (1-4) (E, F, HS, LS)

Temp Cycle Tide (min) Start Time (PST) Total

End Time Total Flow (A#A#) (ppt) 0.60 m

(cu. m) Volume Sample

Number Salinity o C

### Scattergood Generating Station

IM&E Final Report Appendix B1: Entrainment Sampling Procedures

B1 - 7 Attachment 5.3. Map of Santa Monica Bay stations.

### Scattergood Generating Station

IM&E Final Report Appendix B2: Entrainment Sample Sorting Procedures

B2- 1 APPENDIX B2: PROCEDURE FOR SORTING PLANKTON SAMPLES IN THE LABORATORY

1.0 PURPOSE The purpose of this procedure is to define the steps for sorting target orga nisms from plankton samples collected at Scattergood Power Plant, and to describe the Quality Control Program (QC) used to monitor the sorting accuracy of individual sorters. 

### 2.0 RESPONSIBILITIES

 Laboratory Supervisor is responsible for assuring that plankton sample sorting is in accordance with written procedures.

 The Quality Control Supervisor is responsible for implementing the Quality Control Program which monitors sorting accuracy in accordance with written procedures.

 Investigating biologists are respons ible for sorting samples in accordance with written procedures. 

### 3.0 INSTRUCTIONS 3.1 Sorting Procedures

3.1.1 Sample Processing

a. Ensure that the proper equipment necessary for sample processing is available (Attachment 5.1). b. Transfer the samples to be sorted to the laboratory trailer.
c. Samples that were originally fixed in formaldehyde after collection, must be transferred to 100% ethanol before laboratory processing. This is done outside to lessen the exposure to formaldehyde fumes. 1. A funnel with the appropriate mesh size attached to its bottom opening is placed into a jar or can. The mesh must not be larger than that used during sample collection. Place the jar and funnel in a tray so the sample can be retrieved if spillage occurs. 2. Pour the sample carefully into the can ning funnel. The sample jar and jar lid are rinsed with water, directing the water and organisms into the funnel. Rinse the sample with water to flush the formaldehyde from the sample. 3. Rinse the sample into a labeled jar with 100% ethanol from a squeeze bottle. Make certain that the jar has both an inner label and a jar top label. Additional ethanol is added to the sample jar to cover the sample. 4. The waste formaldehyde and rinse water is then discarded into the appropriate hazardous waste container. d. Consult the sorting schedule posted in the processing laboratory to determine sorting priorities.
e. Sign out the sample on the Laboratory Sample Tracking Sheet ( Attachment 5.2 ) by writing your initials under the ‘sorter’ column. Transcribe information from the sample label into the Sorter’s Log Book ( Attachment 5.3) and into

### Scattergood Generating Station

IM&E Final Report Appendix B2: Entrainment Sample Sorting Procedures

B2- 2 the sorter's notebook (each sorter has separate log sheets and a notebook for this purpose). f. Take two clean canning funnels with attached mesh netting, one labeled ‘sorted’ and the other labe led ‘unsorted’. The mesh size should be no larger than that used to collect the samples. g. Place the ‘unsorted’ canning funnel on a clean jar. Next, place the jar and funnel in a dish so samples can be retrieved if spillage occurs. Pour a sample into the funnel. The funnel will contain the material to be sorted, while the ethanol will drain into the jar. h. Place the ‘unsorted’ funnel on a second jar or can. Using fresh water in a squeeze bottle, rinse any remaining sample from the sample jar, the jar lid and inner sample label into the funnel containing the unsorted sample. i. Pour the ethanol that was filtered through the canning funnel into the original sample jar. Keep the original ethanol

-filled sample jar with the sample. Dispose of the alcohol waste

-water from the second jar into the appropriate waste container. j. Place the ‘unsorted’ funnel containing the sample and the empty ‘sorted’ funnel into individual glass bowls in a tray. Do not let the sample dehydrate during processing. k. Transfer a small amount of the sample from the ‘unsorted’ funnel to the sorting tray. Add enough water to cover the sample. Distribute the sample in the sorting tray. l. Place the sorting tray on the base of the dissecting microscope. Adjust the magnification so that the field of view is slightly larger than the width of an individual marked grid.
m. Arrange the light source to provide adequate illumination.
n. Carefully scan the entire sorting tray using the grids for orientation. Remove the target organism with forceps and place them either into a shell vial containing 70

- 80% ethanol or into a small dish containing water.
o. Log the number of organisms removed from the sample in the sorter notebook. p. Scan the tray a second time. If target organisms are found on the second pass, repeat a third time. Continue this process until a scan does not produce any additional target organisms. q. Once sorted, pour the sorted sample into the ‘sorted’ funnel and rinse with a small amount of water. Take a second aliquot from the ‘unsorted’ funnel as described abov e. Repeat the above steps until the entire sample has been sorted.
r. When the sorting has been completed, the sorted organisms should be placed into a shell vial containing ethanol. Place cotton into the top end of the vial to keep the organisms inside. Place the vial into a labeled jar containing ethanol.
s. Add enough ethanol to at least cover the shell vials and label each jar lid with a colored dot label. (The jar lid color coding system is posted in the lab.) Prepare a waterproof inner label for the jar containing the shell vial. Both labels should contain the following information: 1. Serial number 2. Date the sample was collected

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IM&E Final Report Appendix B2: Entrainment Sample Sorting Procedures

B2- 3 3. Station, cycle and sample number 4. Collection start time 5. Jar number (if more than one jar) 6. Sorter’s initials 7. Number of organisms in shell vial t. The total number of sorted organisms and the total time required to process the sample is recorded in the sorter's notebook.
u. Put the sorted sample back into the original sample jar containing the ethanol. Rinse any remaining sample from the funnel into the jar using a squirt bottle containing ethanol. Make sure the inner waterproof label is in the sample jar. Thoroughly clean the funnels of all the remaining sample.
v. For samples that do not contain any larval fish, an empty jar is labeled with the above information with zero (0) organisms indicated, and placed in the appropriate storage location.
w. If a sample must be stored before completion: 1. Put the sorted portion of the sample back into the original sample jar. Rinse any remaining material from th e funnel into the jar using a squirt bottle containing ethanol. Make sure that the sample is adequately covered with ethanol. 2. Put the unsorted sample into a second jar. Rinse any sample from the ‘unsorted’ funnel into the jar using a squirt bottle containing ethanol. Using a dot label, label the jar lid with the sample identification information, sorter’s initials, and the word “unsorted”. Make an additional inner label with the sample identification information and marked ‘unsorted’. Place the label inside the jar with the ‘unsorted’ sample. Make certain that the ‘unsorted’ sample is adequately covered with ethanol. 3. The sorted and unsorted portion of the sample should be stored in a flammable materials storage cabinet until sorting can continue. 3.1.2 Once the sa

mple is completed, place an appropriately colored dot label on the jar top with the sorter's initials and date of sorting. Return the jar to the box from which it was originally removed.
a. Transcribe the information recorded in the sorter's notebook to the Laboratory Sample Tracking Sheet (

Attachment 5.2 ), and to the Sorter's Log ( Attachment 5.3 ). 3.2 Sorting Quality Control Program

3.2.1 QC Sorting Criteria

a. The first ten samples that are sorted by an individual are completely resorted by a designated QC sorter. A sorter is allowed to miss one target organism when the original sorted count is 1

 19. For original counts above 20 a sorter must maintain a sorting accuracy of 90%. b. After the sorter has passed 10 consecutive sorts, the program is switched to a ‘1 sample in 10’ QC program for that sorter. After the sorter has completed another 10 samples, one sample is randomly selected by the designated QC sorter for a QC resort.

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IM&E Final Report Appendix B2: Entrainment Sample Sorting Procedures

B2-4 c. If the sorter maintains the 90% accuracy sorting rate for this sample, then the sorter continue s in the ‘1 sample in 10’ QC mode. d. If a sample does not meet the 90% accuracy rate their subsequent samples will be resorted until 10 consecutive samples meet the criteria. 3.2.2 QC Resorting

a. Sorting procedures used during the QC resort are the same as the sorting procedures described in Section 3.1. b. All fish and selected invertebrate larvae that were missed by the sorter are removed during the QC resort.
c. For the QC process, a larval fish is defined as having a head plus at least 50% of the body. Any parts without a head and/or less than 50% of the body will be considered a fragments and will not be counted against the original sorter as a missed fish. However, it is important for each sorter to remove all fish and fragments from each sample that is sorted and correctly record them as # fish / # fragments in the sorter’s notebook and on the tracking sheet. d. Any vials of fish larvae or selected invertebrate larvae generated from the resort are labeled with an orange dot label, and labeled as described in the sorting procedures with the addition of “QC” added to the label.
e. An orange dot label should also be placed on the top of the jar of the sample that was resorted and labeled with the QC person’s initials, survey number, sample number, and date the resort was completed. f. The vials are stored in the appropriate location. 3.3 Waste Disposal

3.3.1 No formaldehyde or water contaminated with formaldehyde should be disposed of into

the sewage system. Dispose of any water contaminated with this chemical in the designated waste water container to be disposed of at a local hazardous materials waste depository. 

### 4.0 RECORDS 4.1 All data sheets are later reviewed, initialed, and coded by the Task Leader or his designate, and

submitted to the Data Coordinator for logging, computer entry, and storage. 4.2 Original data sheets are permanently stored. 

### 5.0 ATTACHMENTS 5.1 Equipment List 5.2 Laboratory Sample Tracking Sheet 5.3 Sorter’s Log Book Sheet

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IM&E Final Report Appendix B2: Entrainment Sample Sorting Procedures

B2- 5 Attachment 5.1. Equipment List.

1. Tray or dish 2. Bowls 3. Sample jars 4. Two canning funnels with attached plankton mesh netting, labeled with mesh size, and labeled ‘sorted’ and ‘unsorted’ 5. Squeeze bottle containing 100 percent ethanol (denatured) 6. Squeeze bottle containing fresh water 7. Sorting tray or petri dish marked with a sorting grid 8. Dissecting microscope with light source 9. Dissecting microscope with camera attachment connected to computer equipped with Optimas 6.2 10. Glass shell vials and cotton 11. Jar/vials with lids 12. Forceps 13. Waterproof labels 14. Dot labels 15. Sorter's notebook 16. Plankton splitter 17. Micrometer

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IM&E Final Report Appendix B2: Entrainment Sample Sorting Procedures

B2- 6 Attachment 5.2. Laboratory Sample Tracking Sheet

Entrainment Abundance / Source Water / Plankton Tow Serial Number Lab Sample Tracking Sheet Sample Information Invertebrate Sort Information Fish Sort Information Collection Date Station Cycle Sample Start Time % Detrit Sorte

r Date Sorted Time (hrs) # Invt. # Jars QC Sorter Date QC’d # Invt. ID’er Date

ID’d QC ID’er Date QC ID Sorter Date

Sorted Time (hrs) # Invt # Jars QC Sorter Date QC’d # Invt ID’er Date

ID’d QC ID’er Date QC ID

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IM&E Final Report Appendix B2: Entrainment Sample Sorting Procedures

B2- 7 Attachment 5.3. Sorter’s Log Book Sheet
Sorters Log: Name: Sample Identification Sort Information Quality control Checks Serial Number Collection

Date Station Cycle Sample Start Time Date

Sorted Sort

Time By Date

QC'ed Resort

Time Count So rt/Resort Count

Sort/Resort Pass /

Fail

### Scattergood Generating Station

IM&E Final Report Appendix B3: Entrainment Sample Identification Procedures

B3- 1 APPENDIX B3: PROCEDURES FOR THE IDENTIFICATION OF

LARVAL FISHES and TARGET INVERTEBRATES
1.0 PURPOSE The purpose of these procedures is to define the steps for identifying planktonic organisms, and to describe the Quality Control (QC) Program used to monitor the accuracy of each individual’s identification performance. 

### 2.0 RESPONSIBILITIES

 The Lead Taxonomist is responsible for assuring that plankton identifications are performed in accordance with written procedures and for implementing the Quality Control Program.

 Investigating biologists are responsible for plankton identifications and for monitoring accuracy in accordance with written procedures. 

### 3.0 INSTRUCTIONS 3.1 Identification procedures for larval fishes and target invertebrate larvae

.

a. Ensure that the proper equipment necessary for the identification of target organisms is available (Attachment 5.1). b. The fish and target invertebrates from each sample are kept in separate containers and processed following this procedure in essentially the same manner.
c. Sign out the sample to be identified by placing your initials in the “ID’er” column on the Laboratory Sample Tracking Sheet ( Attachment 5.2 ). d. The container of target organisms to be identified is carefully emptied into a dish. The dish is placed on the microscope stage and the lighting adjusted to provide adequate illumination.
e. Each target organism is identified to the lowest taxonomic classification possible. The total number of each taxon is recorded on the Entrainment /Source Water Plankton Tow Lab Data Sheet ( Attachment 5.3). f. All individuals of each identified taxon of larvae from a sample should be put into a shell vial containing 100% ethanol. Each vial should contain a label with the taxon name and sample number. Cotton should be pushed into the upper end of the vial to keep the label and organisms enclosed. g. Mutilated larvae (partial organisms that are missing body parts and are unable to be identified) are placed in a separate labeled vial. Whole larvae that are unidentified, are placed in a separate labeled vial. h. All vials containing target organisms from an individual sample should be put into a labeled jar containing enough ethanol to cover the vials. The jar should contain both an inside label and a label attached to the outside of the lid denoting the sample number, date and time collected, and identifier’s initials. Tighten the jar lid to prevent evaporation of the preservative. Samples with many different fish taxa may require more than one labeled jar. i. On the Laboratory Sample Tracking Sheet , record the identifier’s initials and date sample was logged in. The identifier’s log will contain the total number of larvae identified and the date identified. If more than one day was needed

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IM&E Final Report Appendix B3: Entrainment Sample Identification Procedures

B3- 2 to complete the identification, record the date the sample identification was completed. j. Place the jar into the appropriate box containing identified samples. k. Dispose of any liquids containing ethanol into the appropriate waste container. 3.2 Identification Quality Control (QC) Program

3.2.1 Fishes

a. The first ten samples of larval fishes that are identified by an individual identifying biologist will be completely re

-identified by a designated identification QC biologist. A total of at least 50 individuals from at least 5 taxa (50/5 criteria) must be present in these first ten samples. If the first 10 consecutive samples do not pass the 50/5 criteria, additional samples must be re-identified until this criteria is met. b. The identifying biologist must maintain a 95% identification accuracy level in these first 10 samples. For all samples, if a sample contains between 1

 19 larvae, one larva e can be misidentified and the sample will not fail the QC check.
c. If the identifying biologist identifies a larval fish to a certain family or genus and subsequently the identification QC biologist is able to refine the identification to a lower taxonomic level, this will not be considered a misidentification pertaining to the 95% identification accuracy level. A misidentification will be one in which the identifying biologist identifies the fish as belonging to a certain family, genus or species, and then the identification QC biologist determines that the initial identification was incorrect and changes the identification to a different family, genus or species or changes it to a higher taxonomic group. d. After the identifying biologist has passed 10 consec utive samples, the program is switched to a “1 sample in 10” QC program. After the identifying biologist has completed another 10 samples, one sample is randomly selected by the designated identification QC biologist for a QC review.
e. If this sample mainta

ins the 95% accuracy level as determined by the identification QC biologist, then the identifying biologist continues in the “1 sample in 10” QC mode. If a sample does not meet the 95% accuracy level, their subsequent samples will be re

-identified until 10 consecutive samples meet this level of accuracy. f. Any misidentified fish found by the identification QC biologist, will be placed into the appropriate labeled vial for that sample. This information will be recorded on the Fish Identification Data Sheet

. 3.2.2 Invertebrate Larvae

a. The first ten samples identified by an individual identifying biologist will be completely re

-identified by a designated identification QC biologist. b. The identifying biologist must maintain a 95% accuracy level in these first 10 samples . For all samples, if a sample contains between 1

- 19 larvae, one larvae can be misidentified and the sample will not fail the QC check.
c. After the identifying biologist has passed 10 consecutive samples, the program is switched to a “1 sample in 10” QC program. After the identifying biologist has completed another 10 samples, one sample is randomly selected by the designated identification QC biologist for a QC review.

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IM&E Final Report Appendix B3: Entrainment Sample Identification Procedures

B3- 3 d. If this sample maintains the 95% accuracy level as determined by the identification QC biologist, then the identifying biologist continues in the “1 sample in 10” QC mode.
e. If an identifier’s sample does not meet the 95% accuracy level, their subsequent samples will be re

- identified until 10 consecutive samples meet this level. f. Any misidentif

ied larva found by the identification QC biologist, will be placed into the appropriate labeled vial for that sample and recorded on the appropriate laboratory identification data sheet. 3.3 Larval Fish Measuring

3.3.1 Larval Fish Measuring Procedure

a. Turn on the co

mputer, camera, and light source at the measuring station. b. Consult posted notices near the measuring station to determine measuring priorities and retrieve the binder containing the appropriate data sheets.
c. Locate the box containing the fish to be measured and place it in a easily accessible area close to the measuring station. d. Open the Optimas Image Analysis software by clicking with the mouse on the Optimas icon.
e. Open the Larval Fish Measuring macro in Optimas, and follow the macro’s directions. f. Select th

e jar of fish to be measured and consult the jar label. Compare data on the jar label with the inner label and the data sheet for this sample. Consult an identifier regarding discrepancies between labels. g. Enter the data queried for by the macro including t he last five digits of the serial number, the measurer’s initials, the data sheet sequence number and the species code. h. Open the jar and remove the vials for the target taxa to be measured as per the posted list. Place the vials in a rack designed to allow the vials to maintain an upright posture so as to reduce spillage. i. Select the first vial to be measured. Remove the cotton and the label. Compare the label with the data sheet for confirmation. j. Empty the vial into a shallow dish. Remove any fish that have adhered to the vial, cotton, the label, or any tools used in the transferring process and place the fish in the dish. Add alcohol to the dish if necessary to prevent desiccation. k. If the number of larval fish in the vial exceeds fifty or what can be reasonably measured on a single image capture, transfer some of the fish to another glass dish and immerse them in alcohol. l. Place the dish on the stage of the microscope. Arrange the fish so that all fish appear on the screen. Adjust the zoom, focus, and lighting for the best possible image. If this is the first group of larval fish being measured, or if the magnification has been changed, it is necessary to re

- calibrate. Place the micrometer on the stage of the microscope and re

-calibrate by drawing a line from one of the micrometers millimeter marks to another, noting the distance between the two marks, and entering that value when queried. Replace the dish containing the larval fish to be measured.

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IM&E Final Report Appendix B3: Entrainment Sample Identification Procedures

B3-4 m. Measure larval fish by drawing a line from the pre

-maxillary to the end of the notochord, being careful to follow the contours of the fish. If the fish is too damaged to find either the pre

-maxillary or to estimate the path taken by the notochord, do not measure, and proceed to the next larval fish. If the line does not adequately approximate the larval fish’s length it must be re

- measured.
n. Note the program’s display of the measurement, check that it seems reasonable. If it does not seem reasonable, it may be necessary to re

-calibrate and re

measure. If the problem per sists, contact an identifier. Make note of any problems in measuring and post near the measuring station.
o. The macro will store the measurement in at least two separate data files along with the necessary sample information. p. Repeat the above steps for all f ish in the dish. q. When all larval fish in the dish have been measured, fill the vial that originally contained the fish with alcohol and transfer the measured fish to the vial.
r. If the larval fish from this vial have been segregated into two or more groups, place another group into the dish, being careful to submerse them in alcohol, and measure as above. Do not measure more than fifty larval fish of any one taxon from each sample. 

### 4.0 RECORDS 4.1 All data sheets are later reviewed, initialed, and coded by the Task L eader or his designate, and submitted to the Data Coordinator for logging, computer entry, and storage. 4.2 Original data sheets are permanently stored. 

### 5.0 ATTACHMENTS 5.1 Equipment List 5.2 Laboratory Sample Tracking Sheet 5.3 Entrainment Abundance/ Source Water Plankton Tow Lab Data Sheet 5.4 Larval Fish Length Data Sheet (not needed for measurements completed with a computer

-based measuring system.)

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IM&E Final Report Appendix B3: Entrainment Sample Identification Procedures

B3- 5 Attachment 5.1 . Equipment List

1. Dissecting microscope with light source and calibrated ocular micrometer 2. Sorting tray or petri dish 3. Squeeze bottle containing 100% ethanol (denatured) 4. Glass shell vials 5. Holder for shell vials 6. Jar containing target organisms to be identified 7. Cotton 8. Forceps 9. Waterproof labels 10. Dot labels 11. Data sheets 12. Identifier’s log sheet 13. Taxonomic references

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IM&E Final Report Appendix B3: Entrainment Sample Identification Procedures

B3- 6 Attachm ent 5.2. Laboratory Sample Tracking Sheet

SGS 316(b) Entrainment / Source Water / Plankton Tow Serial Number Lab Sample Tracking Sheet Sample Information Invertebrate Sort Information Fish Sort Information Collection Date Station Cycle Sample Start Time % Detrit Sorter Date

Sorted Time (hrs) # Invt. # Jars QC Sorter Date QC’d # Invt. ID’er Date

ID’d QC ID’er Date QC ID Sorter Date

Sorted Time (hrs) # Invt # Jars QC Sorter Date QC’d # Invt ID’er Date

ID’d QC ID’er Date QC ID

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IM&E Final Report Appendix B3: Entrainment Sample Identification Procedures

B3- 7 Attachment 5.3. Entrainment /Source Water Plankton Tow Lab Data Sheet

SGS 316(b) Entrainment / Source Water Plankton Tow Sequence Lab Data Sheet, Serial No. Collection Date Station Tow / Cycle # Sample Start Time Sort Type

________ Species Code Species Count QC Resort Additional Count Total

Count Notes / Comments

Total Notes:

Identification By / Date: Identification QC By / Date: QC Resort ID By / Date: Reviewed By / Date: Entered By / Date: Copied By / Date:

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IM&E Final Report Appendix B3: Entrainment Sample Identification Procedures

B3- 8 Attachment 5.4. Larval Fish Length Data Sheet

SGS 316(b) Demonstration Larval Fish Lengths, Form # Sequence # Serial # Sample Microscope Page of Species Species

Code Mag. Ocular Unit

Measurements By / Date: Entered By / Date: Verified By / Date: Copied By / Date:

### Scattergood Generating Station

IM&E Final Report Appendix B4: Impingement Procedures

B4 - 1 APPENDIX B4: IMPINGEMENT PROCEDURES 1.0 PURPOSE The purpose of this document is to identify the procedures and equipment necessary to accurately collect and process impingement samples at the Scattergood Generating Station (SGS). 

### 2.0 RESPONSIBILITIES

2.1 Task/Field leader:

 Contact plant to obtain clearance for personnel that will be conducting the sampling.

 Verify that all investigating biologists conducting the sampling have read and understand these procedures.

 Verify that procedures have been followed during sample collection and that the sa mpling has been conducted safely.
2.2 Investigating biologist:

 Conduct sampling using the following procedures. 

### 3.0 SGS CONTACT INFORMATION

Name Cell/Outside Line E- mail Information Gary Laney (310) 524

- 8506 Gary.Laney@ladwp.com John Abdelmalak (310) 524

- 8503 John.Abdelmalak@ladwp.com Shift Supervisor (310) 524

- 8501 Control Room (310) 524

- 8510 On

-site # 48510 On

-Site Emergency Number (310) 524

- 8300 On

-site # 48300 

### 4.0 PROCEDURES Impingement sampling will only be undertaken when there is water passing through the traveling screens for Unit 1,2 or 3. If only one pump is in operation, proceed with sample collection using the following procedures. Each normal operation impingement survey consists of an initial cleaning period followed by four 6

-hr sampling cycles. Table B4

- 1 presents the target schedule for each survey.
4.1 Mobilization

a. Notify plant personnel of the dates, times, and names of the biologists that will be onsite during each survey. All personnel will require a photo identification (driver’s license, passport, etc.) to obtain access to the plant site. b. The equipment listed in Table B4

-2 is required for sampling and should be checked before leaving for the plant. Verify that any scales used for the sampling have been calibrated within the previous three months. 4.2 Traveling Screen Sample Collection

a. Material impinged at Units 1

-2 and Unit 3 is rinsed from the traveling screens (TS) into metal collection baskets placed in one of two sumps (Figures B4

- 1 and B4

-2). The bar rack area does not require daily cleaning, thus no collections will be conducted from this area.

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IM&E Final Report Appendix B4: Impingement Procedures

B4 - 2 b. Make sure that the collection basket has been emptied prior to the survey. If there is any debris in it, contact an operator to have them remove the basket using a crane so that it can be emptied.
c. The initial screenwash is for cleaning purposes only; do not process any materials from the sump after the cleaning rinse. The time at the end of the initial TS rinse is the beginning of Cycle 1. Record this on the appropriate datasheet. d. The mesh in the collection basket has a larger mesh than the mesh of the TS. Secure a mesh net/vexar basket (with mesh of the same size or smaller than the TS mesh) inside of the metal basket so that impinged materials can easily be removed. If the debris load is too heavy for the mesh net/vexar basket or it is damaged and materials accumulate in the metal basket, make sure an operator is available to use a crane to pull the metal basket out for sample collection.
e. Have plant personnel activate the TS wash system thirty (30) minutes prior to the end of each cycle so that all impinged material is rinsed from the screens into the collection basket. f. Remove all impinged fish and invertebrates from the impinged debris. g. Replace the mesh net/vexar basket in the rectangular sump before initiation of the screenwash for the next cycle. h. All collected impinged material will be processed using the procedures in following section. 4.3 Sample Processing

a. Remove all fishes and invertebrates from the impinged debris. Record the volume of the debris (gallons) on the datasheet. Also record the composition and percentage of the debris. b. All fishes, crabs, shrimps and prawns, and cephalopod mollusks are identified, counted, measured (see measurement criteria below), and weighed. This information is recorded on the appropriate datasheet. All other invertebrates are identified and recorded as present by entering a “P” in the count box. Organism Group Length Measuring Criteria Fishes Total body length for sharks, disc width for skates and rays and

standard lengths for bony fishes Crabs Maximum carapace width Spiny lobster and Shrimps Carapace length, measured from the anterior margin of carapace

between the eyes to the posterior margin of the carapace Octopus Maximum “arm” spread, measured from the tip of one tentacle to the

tip of the opposite tentacle Squid Dorsal mantle length, measured from the edge of the mantle to the

posterior end of the body

c. Record all organism names on the appropriate datasheet, using their scientific names whenever poss

ible. The taxa codes are recorded after the datasheets are returned to the office. d. Make certain of all identifications before recording the name on the datasheets. If an organism cannot be positively identified it should be saved. The voucher specimen shou ld be placed in a plastic bag with a waterproof label indicating the location, cycle, date, time, and the initials of the collector. If personnel on the next cycle can positively identify the organism record the organism’s name on the datasheet. If positive identification cannot be made the organism is returned to the laboratory for identification.

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IM&E Final Report Appendix B4: Impingement Procedures

B4 - 3 e. If a large number (more than 30) of any individual countable species is collected during a cycle, individually measure and weigh 30 randomly selected individuals of this species and then count and measure the remaining individuals and record this information on a separate line on the datasheet. For example: if 198 anchovies were collected, randomly select 30 individuals and record on the first row Engraulidae, count = 1, Length = standard length (the distance from the tip of the snout to the posterior vertical margin of the hypural plate) to the nearest mm, weight = weight to nearest gram, sex = “

-“ (if the sex cannot be determined without dissection, record a “

-“) , and condition = alive (A), dead (D), or mutilated (M). Continue this procedure for the other 29 randomly chosen anchovies. Then individually measure, but batch weigh, the remaining individuals (up to 200). In instances where more than 200 individuals of any species are impinged during one cycle, record a batch weight for the rest of the individuals of that species. If all of the individuals are alive, put an “A” in the Cond. box. If some are dead and some mutilated, use additional rows to fill in the appropriate information in the corresponding row(s).
1 to 30 individuals 31 to 200 individuals >200 individuals Length Measure each

individual Measure each individual Measure up to 200 individuals

Weight Weigh each individual Weigh 30 individually, then bat ch weigh up to 200 Weigh 30 individually, then

batch weigh up to 200, then batch weigh the remaining
f. Determine the sex of the countable organisms to the extent possible without dissection. Assign the letter M to refer to males, F for females, J for juven iles, G for gravid. Put a “

-“ if the sex cannot be determined without dissection. g. Record the condition of each countable organisms: A for alive; D for dead; M for mutilated. If an individual is mutilated, do not measure the length. If there are more than 30 non

mutilated individuals, the mutilated individual(s) can be weighed with the batch weight of the additional individuals. If there are less than 30 non

-mutilated individuals, record the weight of the mutilated individual(s) but not their lengths. h. Recor

d any anomalies or other notes (encountered in each cycle) in the notes section on the datasheet. i. At the end of each cycle verify that: a) the sampling procedures have been followed correctly, b) the data has been recorded correctly and legibly, and then c) sign and date the “Reviewed by/Date” section at the bottom of the datasheet. j. Put all dead animals and discarded debris in trash dumpsters. Make sure to double bag the material as collection of the trash may not occur for several days. k. Quality control (QC) checks will be preformed on at least a quarterly basis to verify all organisms are being removed from the debris and that the correct identification, enumeration, length and weight measurements of the organisms are being recorded on the datasheet. The QC team will randomly choose the actual impingement cycles that will be checked and will resort the debris for any missed organisms. All organisms will then be identified, remeasured and reweighed by the QC team to ensure that the data is being recorded corr

ectly. If a sampling team fails a QC check, they will be retrained on fish identification and sample collection. QC checks will be performed on the sampling team until they pass the QC requirements. The QC checks will be fully documented and reported to the Project Manager.

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IM&E Final Report Appendix B4: Impingement Procedures

B4 -4 4.4 General
a. All information recorded on the datasheets must be written legibly with a pencil.

b. Keep information separate for each cycle
c. The survey number will be determined based on the week corresponding to that survey (eg., week 1 = survey 1). Make sure the correct survey number is recorded. d. Make certain that the unit #s and cycle numbers are correct on the datasheet you are using. Record the date and time for the start and end of each screen wash (generally 15 to 20 minutes) and cycle d

uration times (generally 6 hours). Each 24

-hr survey is divided into 4 six

-hour cycles.
e. Record the names of all personnel present during each cycle. f. Use military time (0000

– 2400) to record every cycle collected. Record all times as local time (Pacific St

andard Time or Pacific Daylight Time). g. During each screen wash, verify that the screens are operating properly (the screens should be moving and the water should be spraying). Check with the operator to find out how many circulating water pumps are operating. h. If a survey cannot be completed or is cancelled, make a note on the appropriate data sheet explaining the reason for the cancellation. Write the survey number that corresponds to that week, date and sign the datasheet. i. At the end of each screen wash, record the relevant meteorological data. j. If the traveling screens trip before the 6

-hour cycle is over, collect all material and process it as part of the upcoming cycle. If possible, have the screen wash system run at the scheduled times. 4.5 Heat Treatments During heat treatments follow the same procedures as during normal impingement sampling. Use a separate data sheet for each species collected. A single data sheet can be used for several species if low numbers of these species are collected. If an extremel

y large amount of material is collected in the sump basket, sub

- sampling of the most abundant fishes/shellfishes should occur to minimize the time taken to process the sample. Sub

-sampling procedures are as follows: a. Remove the less abundant fishes/shellfishes from the impinged material; and record as individuals on the datasheets. b. Collect a sub

-sample (for example, two 3

-gallon sub

- samples) from the pile of impinged material. Make sure to randomly sample the pile by collecting organisms from different areas of the pile. Discard the remaining material and record the volume discarded on the data sheets.
c. The number and weight of the organisms collected from each sub

-sample should not be recorded with the other data. Record the sub

- sample data on a separate d atasheet. Make certain that record of the organisms from the sub

-samples can be linked back to the quantity of material discarded and not sampled.

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IM&E Final Report Appendix B4: Impingement Procedures

B4 - 5 Table B4

- 1. Target schedule for 24

-hour impingement sampling effort (schedule assumes that at least one cir culating water pump is in operation). Based on 30 minutes for complete rotation of travel screens at each unit.

Time Units 1/2 Unit 3 6:00 Rinse and Clean 6:30 Start Cycle 1 Rinse and Clean 7:00 Start Cycle 1 7:30 8:00 8:30 9:00 9:30 10:00 10:30 11:00 11:30 12:00 Rinse Cycle 1 12:30 Start Cycle 2 Rinse Cycle 1 13:00 Process Cycle 1 Start Cycle 2 13:30 Process Cycle 1 14:00 14:30 15:00 15:30 16:00 16:30 17:00 17:30 18:00 Rinse Cycle 2 18:30 Start Cycle 3 Rinse Cycle 2 19:00 Process Cycle 2 Start Cycle 3 19:30 Process Cycle 2 20:00 20:30 21:00 21:30 22:00 22:30 23:00 23:30 0:00 Rinse Cycle 3 0:30 Start Cycle 4 Rinse Cycle 3 1:00 Process Cycle 3 Start Cycle 4 1:30 Process Cycle 3 2:00 2:30 3:00 3:30 4:00 4:30 5:00 5:30 6:00 Rinse Cycle 4 6:30 Process Cycle 4 Rinse Cycle 4 7:00 Process Cycle 4 7:30 Note: Schedule is separated into 30

-minute increments to show activities associated with each cleaning and collection cycle at the two sets of traveling screens.

### Scattergood Generating Station

IM&E Final Report Appendix B4: Impingement Procedures

B4 - 6 Table B4- 2. Equipment List.

1. Datasheets printed on waterproof paper 2. Pencils 3. Scales (Electronic and spring) 4. Measuring boards 5. Fish and invertebrate identification keys 6. Buckets and plastic totes 7. Floodlights and extension cords 8. Calipers 9. Calculator 10. Hardhats 11. Safety Glasses 12. Rubber/latex gloves 13. Clipboard

### Scattergood Generating Station

IM&E Final Report Appendix B4: Impingement Procedures

B4 - 7 Figure B4- 1 . Collection sump next to traveling screens, SGS Units 1

-2

Figure B4-2. Collection basket at SGS Unit 3.

# Scattergood Generating Station



# Appendix C Model Parameterization

C1. Estimating Total Entrainment C2. Estimating Proportional Entrainment and the ETM Calculations C3. Demographic Model Calculations

### Scattergood Generating Station

IM&E Final Report Appendix C1: Estimated Total Entrainment

C1 - 1 

# Appendix C1 Estimating Total Entrainment
The following section describes calculations used for assessing entrainment effects at the Scattergood Generating Station (SGS). The equations are presented in a general form that is applicable to sample designs that may have differing numbers of stations, sampling p eriods, or replicates. The SGS entrainment study will sample only one station. While the summation signs over stations are presented in the equations they will be summing over an n of one in the actual calculations and therefore will drop out of the formul as. A general form can be written for summing entrainment over stations at an intake or entrainment site using cycles within a day and days within time periods. Let

i = period 

#  

1, , i N  **** ; j = day within period 

#   1, , i 

### j N  **** ; k = cycle within day 

#   1, , ij 

### k N  **** 

### ; l = station 

#  

1, , ijk 

### l N  **** 

### ;
m = volume at station within cycle 

#   1, , ijkl 

### m N  **** 

### . The total larval entrainment at an intake source can be expressed as

1 1 1 1 N N N ij ijk N i T ijkl ijkl i j k l 

### E V



    

###  

#     (A1)
where
ijkl 

###  

### = density of larvae at the l th station within the k

th cycle on the jth day in the i th time period;
ijkl 

### V 

### = volume of water passing the at the lth station within the k th cycle on the j

th day in the ith time period.

### Scattergood Generating Station

IM&E Final Report Appendix C1: Estimated Total Entrainment

C1 - 2 This summation assumes that stations represent the total intake volume of the power plant. It also assumes that the larval density in the volume of water passing a station is constant over time and space over any cycle. An estimate of the total larval entrainment can be made by taking ijkl 

### n 

### samples of the ijkl



### N 

### volumes passing a station as

1 1 1 1 1 

### ˆ N N n

N ij ijk ijkl N i ijkl T ijklm i j k l m

ijkl 

### V E n 

     

###  

#      (A2)

If we also assume that entrainment volume is constant and the same at all sta tions then

1 1 1 1 1



### 1 ˆ N N n

N ij ijk ijkl N i T ijkl ijklm i j k l m ijkl 

### E V n 

     

###  

#      (A3)
Strata will be defined as the stations and cycles with constant ij 

### N 

### and ijk 

### N 

### . In addition, we sample i 

### n days of the i



### N possible during a period so that

1 1 1 1 1

1 1 1 1 1



### 1 1 ˆ
1 1 N N n n ij ijk ijkl N i T i ij ijk ijkl ijklm i j k l m i ij ijk ijkl N N n n ij ijk ijkl N i i ijklm i j k l m

i ij ijk ijkl 

### E N N N V n N N n
V n N N n 

     

     

###  

        

  

    

#           (A4)

where

1 1 1 N N N ij ijk i i ijkl j l k 

### V V

   

###  

#    If only one day per period is sampled Equation A4 can be expressed as

**** 1 1 1 1

1 1 1 

### 1 ˆ
1

N N n ij ijk ijkl N T i ijklm i k l m

ij ijk ijkl N N ij ijk N i ijkl i k l ij ijk 

### E V N N n
V N N 

    

   

###  

  

     

  

    

#        (A5)

with estimated variance

****

#   **** 

#   2 2 1 1 1 

### 1 ˆ 1

N N ij ijk N ijkl ijkl T i i k l ij ijk ijkl ijkl 

### Var n Var E V N N N n 

   

###    

 

            

#    (A6)

### Scattergood Generating Station

IM&E Final Report Appendix C1: Estimated Total Entrainment

C1 - 3 where

**** 

#   ****



#    

**** 2

1

1 

### ; 1

. ijkl

ijkl n ijklm ijkl m ijkl ijkl

n ijklm m ijkl ijkl 

### Var n

n   

  

 

### 





 

#  

Estimates of T



### E based on Equation A5 will be used in FH and AEL calculations to estimate annual effects of entrainment on fishes and invertebrates. Equation A6 will underestimate the tr ue variance because it does not include within

-period variance. In practice, we ignore the finite population correction, 1 ijkl ijkl 

### n N  

       because ijkl



### N 

### is large. Estimators similar to Equation A5 and Equation A6 are used for calculating survey period estimates of intake and source populations for use in ETM calculations.

### Scattergood Generating Station

IM&E Final Report Appendix C2 : Estimating Proportional Entrainment and the ETM Calculations



### C2- 1 

# Appendix C2 Estimating Proportional Entrainment and the ETM Calculations The empirical transport model ( ETM ) is used to estimate the total mortality probabi lity for larvae from power plant entrainment. The estimate is based on periodic estimates of the probability of entrainment mortality based on daily samples. In the following calculations we assume all larvae entrained die. Generally, sampling takes place over the course of a year so that larval mortality of various species is estimated. The daily probability of entrainment can be defined as


#   i i 

### abundance of entrained larvae abundance of larvae in source population probability of entrainment in th time period 1, , . i 

### PE i i N 

  **** In turn, the daily probability can be estimated and expressed as



### 

**** i i i 

### E PE R  (B1)

where

**** i 

### E 

### = estimated abundance of larvae entrained in the i th time period 

#  

1, , i N  **** ;

**** i 

### R = estimated abundance of larvae at risk of entrainment from the source population in the i

th time period 

#  

1, , i N  **** . 

# Estimating Daily Entrainment The estimate of total Scattergood Generating Station (SGS) entrainment on day j in period i can be expressed from equation (A4) as

### Scattergood Generating Station

IM&E Final Report Appendix C2 : Estimating Proportional Entrainment and the ETM Calculations



### C2- 2 **** 4 1 3

1 1 1 4 1 3

1 1 1 

### 1 3 1 12 ij ijkl ijklm k l m
ij ijklm k l m 

### E V
V 
   

   

###   

  

  

#       (B2)

with associated variance

****



#   2

4 1 2 2 1 1 

### 1 3

1 12 ijkl ij ij ij k l ijkl 

### Var E E V S N 

  

###    
 

          

#   (B3) which can be estimated by

** **  

#   2

4 1 2 2 1 1 

### 1 3

1 . 12 ijkl ij ij k l ijkl 

### Var E V s N 

  

###    

 

          

#   (B4)

The finite population correction [i.e., 3 1 ijk 

### N  

       

### ] can be ignored because ijkl 

### N 

### is exceedingly large. Only one da

y is sampled per period. The period estimated entrainment and variance are

**** 4 1 3

1 1 1 

### 1 12 i i ijklm k l m 

### E V 

   

###  
     

#    (B5)

** **  

#   2

4 1 2 2 1 1 

### 1

. 12 ijkl i i k l 

### Var E V s

  

###  
  

  

#   (B6) 

# Estimating Numbers of Larvae at Risk With the defined and agreed

-upon sources of central San Francisco Bay (S) larvae, the daily abundance of larvae at risk can be estimated by

** **  ij S Sij 

### R V    (B7) where S 

### V denotes daily exchanged and static volumes at central San Francisco Bay (S), and



###   denotes an estimate of average density in each respective source water bodies. The variance of Expression B7 can be written as



###  

#   **** 

#   2 

### | | ij ij S S S ij ij 

### Var R R V Var  

  (B8) The individual variances within Formula B8 describe temporal

-spatial variance in density within the source population during the day of sampling. Seven source water locations are sampled in central San Francisco Bay. Ideally, tow samples would be collected randomly through time and

### Scattergood Generating Station

IM&E Final Report Appendix C2 : Estimating Proportional Entrainment and the ETM Calculations



### C2- 3 space during a sampling day over a potential source population. However, practical limitations due to sampling a large area required a directed and fixed time and location sampling scheme. Our source water estimates of population and variance are made for each period using only one day, i.e. ** ** 

i ij 

### R R  

### and 

###  **** 

#   **** 

#   | i ij ij 

### Var R Var R R  . 

# Period Entrainment and ETM Calculations By dividing estimated period entrainment (B5) by the corresponding source population (B7) an estimate of entrainment mortality can be written as

** ** 

**** i i i 

### E PE R  

### (B9) 

# Variance for the Estimate of i 

# PE The variance for the period estimate of **** i 

### PE can be expressed as

**** 

#   ****

**** , i i i i i ij 

### E Var PE PE Var E R

R          . Assuming zero covariance between the entrainment and source and using the delta method (Seber 1982), the variance of an estimator formed from a quotient (like **** i 

### PE ) can be effectively approximated by

2 2 

### ( ) ( ) . A A A B B Var Var A Var B B A B

                       

         

         

    

### The delta method approximation of **** ( ) i 

### Var PE is shown as

**** 

#   ****

****
i i i S S



### E Var PE Var V 

 

    

   which by the Delta method can be approximated by

### Scattergood Generating Station

IM&E Final Report Appendix C2 : Estimating Proportional Entrainment and the ETM Calculations



### C2-4 ** **  

#   ** **  

#  
** **  

#   ****

**** 

#   2 2

2 

### 1

i i i i i i S S S S S S 

### E Var PE Var E Var V

V V

  

   

         

 

  

     (B10)

and is equivalent to

****



#   **** 

#   2 2 2 i i i S S 

### PE CV E CV V   
       

### where

** **  i S Sij 

### R V    and

**** 

#   ** **  

#  

**** 2 

### . Var CV       Regardless of whether the species has a single spawning period per year or multiple overlapping spawnings the estimate of total larval entrainment mortality can be expressed by

** **  **** 

#  
1 

### 1 1 N q M i i

i 

### P f PE

 

###    

#  (B11)
where q 

### = number of days of larval life, and



### ˆ i 

### f = estimated annual fraction of total larvae hatched during the i th survey period. Formula (B11) is based on the total probability law where 

#   

#    

1 

### . N i i i 

### P A P A B P B

 

###   

#  In the above example, the event A is larval survival and event B is hatching with 

#   P B estimated by **** i 

### f where



###  ****

**** i i T 

### E f E  ,

where ****

i 

### E = estimated entrainment for the ith survey period. Then based on the Delta method

### Scattergood Generating Station

IM&E Final Report Appendix C2 : Estimating Proportional Entrainment and the ETM Calculations



### C2- 5 ** **  ** ** 

****

** ** 

** ** 

** **  ** ** 

** **  ****

**** 2 2 2 2 

### ( )

( ) ( ) (1 ) . i i T

i

N i j j i

i T i i T i 

### E Var f Var E

E

Var E E

Var E Var E f f E

E  

###  

                           

    

# 

The estimates of i



### PE and i 

### f and their respective variance estimates can be combined in an estimate of the variance for **** M 

### P following the Delta method (Seber 1982) for varianc e and covariance as follows:

** **  ** **  ****

** **  ****

** ** 

** **  ****

** **  

#   ** ** 

** **  

#  
** **  **** 1

1
2 1
1 2 1

1 2 

### ( ) 1 (1 )

(1 ) ( )(1 ) ( )( (1 ) ) 2 cov , (1 ) (1 ) where
1 cov , N q

M i i i N q

i i i N q i i i N q

i i i i N N q q j i i j i j i

j i j i

T 

### Var P Var f PE

Var f PE Var f PE Var PE f q PE f f PE PE
f f f f Var E

E 









  

###  

        

              
  


   

       

#      

** **  ****



#   ** **  **** 

#   ****

, 

### 1 1 . N g i j

i j j i g i j 

### f f E f f E
 

###     
 
           

# 

### Scattergood Generating Station

IM&E Final Report Appendix C3: Demographic Model Calculations

C3- 1 

# Appendix C3 Demographic Model Calculations Fecundity Hindcasting (FH) The estimated total larval entrainment for a species ( **** T 

### E 

### ) was used to estimate the number of breeding fema

les needed to produce the number of larvae entrained. The estimated number of breeding females ( ****

FH 

### ) whose fecundity was equal to the estimated total loss of entrained larvae is calculated as follows:

** ** 

****
1 Tn i i 

### E FH TLF S

 

###  

#  **** 

### (C1) where

****

**** number of larval stages vulnerable to entrainment, estimated total entrainment, survival rate from eggs to larvae of th e th stage, and estimated total life time fecundity for females, e T
i 

### n E S i TLF 





 quivalent to the average number of eggs spawned per female over their reproductive years. 

### Equation C1 is based on the simplified case of a single synchronized spawning by a species. For species with overlapping or continuous spawning, larval abundance would have to be specified by week and age class (i.e., **** ij 

### E 

### ). However, we used the mean size of all larvae entrained to estimate a representative age of larvae, and then estimated a survival rate to this representative age. Two input parameters in Equation C1 that may not be available for many spe cies, and thus may limit the method, are lifetime fecundity ( TLF 

### ) and survival rates ( i 

### S 

### ) from spawning to entrainment. In practice, survival was estimated by either one or several age classes, depending on the d ata source, to the estimated age at entrainment. The expected total lifetime fecundity ( ) E TLF 

### was approximated by modeling a linear survivorship for a female once she reached the age of maturity, and using a constant number of eggs produced per year.

### Scattergood Generating Station

IM&E Final Report Appendix C3: Demographic Model Calculations

C3- 2 The number of eggs produced per year was approximated as the average number of eggs per year. Thus

**** 

##   ( )

2 L

M
L

M A

A A L

L M A

L M 

### TLF F A s A dA

A A F dA A A A A F 

 



  
     

#  

where 

##  

s A 

### = survivorship of a female; 

##   F A 

### = eggs produced;

M 

### A 

### = age of maturity; and

L 

### A 

### = age at death. In other words, 0 0.5 1

0 1 2 3 4 5 6 7 

### A (Age)Survivorships(A)

M 

# A L 

# A

### Scattergood Generating Station

IM&E Final Report Appendix C3: Demographic Model Calculations

C3- 3 **** Estimated Total Lifetime Fecundity = Average eggs/year Average number of years of reproductive life

Longevity - Age at maturation Average eggs/year . 2 TLF 

  
   

  

### (C2)

The expected length of reproductive life was approximated as the midpoint between the times of maturation and longevity. The approximation of linear survivorship between these events implies uniform survival. For exploited species such as northern anchovy and sardine, the expected number of years of reproductive life may be much less than predicted using this assumption. Simulation, comparing exponential survival, shows that the calculation of 

###  TLF will be negatively biased for species with short reproductive lifespans, and positively biased for those with longer durations.
The variance of ****

FH 

### was approximated by the Delta method (Appendix E2) (Seber 1982):

** **  ** **  ** **  

##   **** 

##   2 2 2 2 2 1 

### ˆ ( ) ( ) ( ) ( ) ( ) ( ) n L M T j j L m 

### Var A Var A Var FH FH CV E CV S CV F A A
 

###    

          

       

#  where

****

**** ˆ CV( )= CV of estimated entrainment (estimated by CV(I) when available), CV( ) = CV of estimated survival of eggs and larvae up to entrainment, CV( ) = CV of estimated average annual fecundity, = a T j

M 

### E S F A ****

ge at maturation, and = age at maturity. L 

### A 

### The behavior of the estimator for FH appears log

-linear, suggesting that an approximate confidence interval can be based on the assumptions that ln( **** FH 

### ) is normally distributed and uses the pivotal quantity

****

** ** 

**** 2 

### ln ln

. ( ) FH FH Z Var FH FH  

### Scattergood Generating Station

IM&E Final Report Appendix C3: Demographic Model Calculations

C3-4 A 90% confidence interval for FH was estimated by solving for FH and setting Z equal to
+/

- 1.645, i.e.

** **  ****

**** 

###  ** ** 

**** 2 2 ( ) ( ) 1.645 1.645



### to . Var FH Var FH FH FH 

### FH e FH e

 



###   

# Adult Equivalent Loss (AEL)
The AEL approach uses estimates of the abundance of entrained or impinged organisms to forecast the loss of equivalent numbers of adults. Starting with the number of age class j larvae entrained ( ****

j 

### E 

### ), it is conceptually easy to convert these numbers to an equivalent number of adults lost ( ****

AEL 

### ) at some specified age class from the formula:

** **  ****

1 n j j j 

### AEL E S

 

###  

#  (C3) where

****

**** number of age classes, estimated number of larvae lost in age class , and survival rate for the th age class to a dulthood (Goodyear 1978). j
j 

### n E j S j 



 

### Age

-specific survival rates from larval stage to recruitment into the fishery (through juvenile and early adult stages) must be included in this assessment method. For some commercial species, survival rates are known for adults in the fishery; but for most species, age

-specific larval survivorship has not been well described. When age

-specific survival rates from larval stage to recruitment into the fishery were available, AEL was calculated using survival from a representative age of the entrained larvae at DCPP. This age was calcu

lated by dividing the average larval length at entrainment (minus hatch length) by a literature

-based growth rate. Age

-specific survivorship for any interval of time (t) was then calculated following the formula (Ricker 1975)

0 Zt t 

### N e N  

###  

### where

### Scattergood Generating Station

IM&E Final Report Appendix C3: Demographic Model Calculations

C3- 5 0

0 

### number of animals in the population at time , number of animals in the population at time 0, (finite survivorship to time ), 2.71828...(base of the natural log), and instantaneou t

t 

### N t N t N S t Ne Z 

 





 s mortality rate. 

### Survivorship to recruitment, to an adult age, was apportioned into several age stages, and AEL was calculated using the total entrainment as

** ** 

1 

### ˆ n T j j 

### AEL E S

 

###  

#  (C4) where

**** number of age classes from entrainment to recruitment and survival rate from the beginning to end of the th age class. j 

### n S j 




### The variance of ****

AEL 

### can be estimated using a Taylor series approximation (Delta method of Seber 1982) as

** **  ** **  2 2 2 1 

### ˆ ( ) ( ) ( ) n T j j 

### Var AEL AEL CV E CV S

 

###  

      

# 

. (C5) An alternative analysis would be to compare 

###  AEL with the size of the adult population of interest or with fishery harvest data. This method converts numbers of adult losses into fractional loss of the population of interest (e.g., stock assessment). However, information describing adult stocks is limited for many species, and independent field estimates of survival from time of entrainment to adulthood are not available for some species. For some species where such information is unavailable, we can estimate this parameter by assuming a stationary population where an adult female must produce two adults (i.e., one male and one female). Overall survival ( ) T 

### S 

### can then be estimated from total lifetime fecundity ( TLF 

### ) by the quantity

****
**** 2 ˆ ˆ ˆ , T egg larvae adult 

### S S S S TLF     

### which leads to

**** 2 ˆ

.

ˆ ˆ adult egg larvae 

### S TLF S S 

  

### (C6)

### Scattergood Generating Station

IM&E Final Report Appendix C3: Demographic Model Calculations

C3- 6 Substituting Equation 11 into the overall form of the AEL equation where

**** ˆ ˆ T adult 

### AEL E S   

### (C7) yields

****

** **  **** ˆ 2( ) T egg larva 

### E AEL S S TLF 

  

### where

** **  2 AEL FH  

### . (C8) Without independent adult survival rates and assuming a 50:50 sex ratio, **** AEL 

### and ****

FH 

### are deterministically related according to Equation 13, with an associated standard error of

** **  ** **  ( ) 2 ( ). SE AEL SE FH

 

### Equation 13 should be aligned so that the average female age is also the age of recruitment used in comput ing **** AEL 

### . This alignment is accomplished by solving the simple exponential survival equation (Ricker 1975)

0 ( ) 0 Z t t t 

### N N e   

###   

### by substituting numbers of either equivalent adults or hindcast females, their associated ages, and mor tality rates into the equation where,

0 0 

### number of adults at time , number of adults at time , instantaneous rate of natural mortality, and age of hindcast animals ( ) or extrapolated age of animals ( ). t 

### N t N t Z t FH AEL 





 

### This allows for the alignment of ages in either direction such that 2FH AEL  

### since they are either hindcast or extrapolated to the same age. The estimates of mortality calculated from the AEL and FH approaches can be compared for the same time periods for taxa where independent estimates are available for (1) survival from entrainment to recruitment into the fishery and (2) entrainment back to hatching. These comparisons serve as a method of cross

-validation for the demographic approaches to impact assessment.

# Scattergood Generating Station



# Appendix D Entrainment Data

D1. Data by Survey and Station D2. Calculated Total Annual Entrainment and Standard Error Data

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 - 1 Appendix D1. Data by Survey and Station Survey: SMBEA01 Start Date: 1/11/2006 Stations: E1 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Gobiidae unid. gobies 5 13.44 Atherinopsis californiensis jacksmelt 3 8.74 Pleuronichthys guttulatus diamond turbot 3 7.09 Genyonemus lineatus white croaker 4 6.13 Paralichthys californicus California halibut 1 1.43 Total Fishes: 16 Eggs Genyonemus lineatus (eggs) white croaker eggs 1,261 3,142.13 Citharichthys spp. (eggs) sanddab eggs 482 1,147.80 Paralichthys californicus (eggs) California halibut eggs 72 154.24 fish eggs unid. un identified fish eggs 56 113.01 Pleuronichthys spp. (eggs) turbot eggs 26 74.34 Total Eggs: 1,897 Target Invertebrates Hemigrapsus spp. (megalops) shore crab megalops 5 11.02 Brachyura unid. (megalops) unidentified crab megalops 1 2.19 Total Target I

nvertebrates: 6

Survey: SMBEA02 Start Date: 1/25/2006 Stations: E1 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Atherinopsidae unid. silversides 1 3.27 Pleuronichthys guttulatus diamond turbot 1 3.27 Atherinopsis californie

nsis jacksmelt 1 2.75 Total Fishes: 3 Eggs Paralichthyidae unid. (eggs) sand flounder eggs 707 2,196.40 Citharichthys spp. (eggs) sanddab eggs 192 584.99 Genyonemus lineatus (eggs) white croaker eggs 32 98.28 fish eggs unid. unidentified fish eggs 2 1 56.66 Paralichthys californicus (eggs) California halibut eggs 2 6.75 Engraulidae unid. (eggs) anchovy eggs 2 5.51 Pleuronichthys spp. (eggs) turbot eggs 1 2.81 Total Eggs: 957 Target Invertebrates No Invertebrates

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 - 2 Survey: SMBEA02 Start Date: 1/25/2006 Stations: M1- M3 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Genyonemus lineatus white croaker 4 8.33 Paralichthys californicus California halibut 2 3.57 Merluccius productus Pacific hake 1 1.87 Atherinopsis californi

ensis jacksmelt 1 1.75 Atherinopsidae unid. silversides 1 1.70 Citharichthys stigmaeus speckled sanddab 1 1.67 Pleuronichthys guttulatus diamond turbot 1 1.52 Total Fishes: 11 Target Invertebrates No Invertebrates

Survey: SMBEA02 Start Date: 1/25/2006 Stations: O1 -O3 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Genyonemus lineatus white croaker 12 18.90 Pleuronichthys guttulatus diamond turbot 2 3.08 Citharichthys sordidus Pacific sanddab 2 2.97 Atherinopsidae unid. si lversides 1 1.78 Bathymasteridae unid. ronquils 1 1.69 Engraulis mordax northern anchovy 1 1.37 Stenobrachius leucopsarus northern lampfish 1 1.37 Leptocottus armatus Pacific staghorn sculpin 1 1.31 Pleuronichthys verticalis hornyhead turbot 1 1.31 Sebastes spp. rockfishes 1 1.31 Total Fishes: 23 Target Invertebrates Pugettia spp. (megalops) kelp crabs megalops 3 4.39 Loligo opalescens market squid 3 4.22 Total Target Invertebrates: 6

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 - 3 Survey: SMBEA02 Start Date: 1/25/2006 Stations: S1- S4 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Pleuronichthys guttulatus diamond turbot 2 3.00 Atherinopsis californiensis jacksmelt 2 2.94 Gobiidae unid. gobies 2 2.74 Genyonemus lineatus white croaker 1 1.47 Total Fishes: 7 Target Invertebrates No Invertebrates

Survey: SMBEA03 Start Date: 2/8/2006 Stations: E1 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Atherinopsis californiensis jacksmelt 2 5.61 Pleuronichthys guttulatus diamond turbot 1 2.72 Total Fishes: 3 Eggs Paralichthyidae unid. (eggs) sand flounder eggs 950 2,693.56 Citharichthys spp. (eggs) sanddab eggs 92 424.91 Genyonemus lineatus (eggs) white croaker eggs 58 193.60 Pleuronichthys spp. (eggs) turbot eggs 4 11.07 Paralichthys californicus (eggs) California halibut eggs 2 5.77 Total Eggs: 1,106 Target Invertebrates Pugettia spp. (megalops) kelp crabs megalops 5 24.28 Total Target Invertebrates: 5

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -4 Survey: SMBEA04 Start Date: 2/23/2006 Stations: E1 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Gobiidae unid. gobies 36 117.30 Atherinopsis californiensis jacksmelt 8 25.33 Genyonemus lineatus white croaker 4 12.37 Pleuronichthys guttulatus diamond turbot 3 10.31 larval fish fragment unidentified larval fishes 1 3.32 Leptocottus armatus Pacific staghorn sculpin 1 3.18 Citharichthys stigmaeus speckled sanddab 1 3.10 Total Fishes: 54 Eggs Paralichthyidae unid. (eggs) sand flounder eggs 2,098 6,974.45 Citharichthys spp. (eggs) sanddab eggs 497 1,626.99 Genyonemus lineatus (eggs) white croaker eggs 62 202.96 Pleuronichthys spp. (eggs) turbot eggs 8 25.82 Total Eggs: 2,665 Target Invertebrates Pugettia spp. (megalops) kelp crabs megalops 3 9.75 Pachycheles spp. (megalops) porcelain crabs megalops 1 3.60 Porcellanidae unid. (megalops) porcelain crab megalops 1 3.32 Cancer gracilis (megalops) slender crab megalops 1 3.10 Total Target Invertebrates: 6

Survey: SMBEA04 Start Date: 2/23/2006 Stations: M1- M3 Mean Concentration Taxon Com mon Name Count (#/1,000m3) Fishes Pleuronichthys guttulatus diamond turbot 5 8.81 Genyonemus lineatus white croaker 4 5.78 Atherinopsis californiensis jacksmelt 2 3.05 Paralichthys californicus California halibut 2 3.02 Sebastes spp. rockfishes 2 2.81 Pleuronichthys verticalis hornyhead turbot 1 1.77 Citharichthys stigmaeus speckled sanddab 1 1.72 Parophrys vetulus English sole 1 1.72 larval/post

-larval fish unid. larval fishes 1 1.60 Total Fishes: 19 Target Invertebrates Pinnixa spp. (megalops) pea crabs megalops 1 1.60 Total Target Invertebrates: 1

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 - 5 Survey: SMBEA04 Start Date: 2/23/2006 Stations: O1 -O3 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Genyonemus lineatus white croaker 7 9.67 Lepidogobius lepidus bay goby 4 5.49 Paralichthys californicus California halibut 3 3.84 Pleuronichthys ritteri spotted turbot 2 2.56 Isopsetta isolepis butter sole 2 2.51 Gobiidae unid. gobies 2 2.46 Paralichthyidae unid. sand flounders 1 1.61 Hypsoblennius spp

. combtoo th blennies 1 1.40 Atherinopsis californiensis jacksmelt 1 1.29 Pleuronichthys guttulatus diamond turbot 1 1.24 Pleuronectiformes unid. flatfishes 1 1.22 Sciaenidae unid. croakers 1 1.22 Total Fishes: 26 Target Invertebrates Pinnixa spp. (megalops) pea crabs megalops 1 1.39 Porcellanidae unid. (megalops) porcelain crab megalops 1 1.39 Pugettia spp. (megalops) kelp crabs megalops 1 1.39 Total Target Invertebrates: 3

Survey: SMBEA04 Start Date: 2/23/2006 Stations: S1- S4 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Pleuronichthys guttulatus diamond turbot 9 14.10 Atherinopsis californiensis jacksmelt 6 9.86 Genyonemus lineatus white croaker 5 7.72 Gobiidae unid. gobies 3 4.67 Engraulis mordax northern anchovy 1 1.69 Paralichthys californicus California halibut 1 1.57 Typhlogobius californiensis blind goby 1 1.51 Pleuronectidae unid. righteye flounders 1 1.50 Total Fishes: 27 Target Invertebrates Emerita analoga (megalops) mole crabs megalops 2 3.51 Pachycheles spp. (megalops) porcelain crabs megalops 2 3.36 Porcellanidae unid. (megalops) porcelain crab megalops 1 1.76 Pugettia spp. (megalops) kelp crabs megalops 1 1.69 Total Target Invertebrates: 6

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 - 6 Survey: SMBEA06 Start Date: 3/22/2006 Stations: E1 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Genyonemus lineatus white croaker 206 547.76 Stenobrachius leucopsarus northern lampfish 70 182.42 Parophrys vetulus English sole 60 169.29 Gobiidae unid. gobies 39 110.29 Lepidogobiu

s lepidus bay goby 30 77.32 Pleuronectidae unid. righteye flounders 11 28.17 Engraulis mordax northern anchovy 7 18.86 Sciaenidae unid. croakers 7 18.40 larval fish

- damaged unidentified larval fishes 5 12.25 Paralichthys californicus California hali but 5 11.19 Leptocottus armatus Pacific staghorn sculpin 4 10.28 Merluccius productus Pacific hake 4 10.27 Atherinopsis californiensis jacksmelt 4 10.02 Gobiesox spp. clingfishes 2 6.84 Pleuronichthys verticalis hornyhead turbot 3 6.47 Citharichthys stigmaeus speckled sanddab 2 5.14 larvae, unidentified yolksac unidentified yolksac larvae 2 5.00 Lyopsetta exilis slender sole 2 4.58 Bathylagus ochotensis popeye blacksmelt 1 3.42 Rhinogobiops nicholsi blackeye goby 1 3.42 Pleuronichthys ritteri spo tted turbot 1 2.94 Gibbonsia spp. clinid kelpfishes 1 2.85 Ruscarius creaseri roughcheek sculpin 1 2.85 Hypsoblennius spp

. combtooth blennies 1 2.77 Atherinops affinis topsmelt 1 2.29 Atherinopsidae unid. silversides 1 2.29 Isopsetta isolepis butter sole 1 2.29 Gillichthys mirabilis longjaw mudsucker 1 2.18 Pleuronectiformes unid. flatfishes 1 2.18 Total Fishes: 474 Eggs fish eggs unid. unidentified fish eggs 3,841 9,730.94 Citharichthys spp. (eggs) sanddab eggs 675 1,850.40 Pleuronichthys spp . (eggs) turbot eggs 488 1,266.80 Paralichthyidae unid. (eggs) sand flounder eggs 354 900.10 Sciaenidae unid. (eggs) croaker eggs 243 639.73 Engraulidae unid. (eggs) anchovy eggs 65 169.77 Microstomus pacificus (eggs) Dover sole eggs 2 5.62 Total Eggs : 5,668 Target Invertebrates Pugettia spp. (megalops) kelp crabs megalops 100 250.45 Majidae unid. (megalops) spider crab megalops 7 20.24 Emerita analoga (megalops) mole crabs megalops 4 10.17 Paguridae unid. (megalops) hermit crab megalops 2 5.03 (continued)

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 - 7 Survey: SMBEA06 Start Date: 3/22/2006 Stations: E1 (continued) Mean Concentration Taxon Common Name Count (#/1,000m3) Target Invertebrates (continued) unidentified crab (megalops) unidentified crab megalops 2 5.03 Pinnixa spp. (me galops) pea crabs megalops 1 2.29 Total Target Invertebrates: 116

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 - 8 Survey: SMBEA06 Start Date: 3/22/2006 Stations: M1- M3 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Parophrys vetulus English sole 543 670.20 Genyonemus lineatus white croaker 308 384.71 Engraulis mordax northern anchovy 72 75.25 Stenobrachius leucopsarus northern lampfish 58 69.89 larval fish fragment unidentified larval fishes 50 61.91 Pleuronectidae unid. righteye flounders 37 48.27 Pleuronichthys vert

icalis hornyhead turbot 35 40.05 Paralichthys californicus California halibut 27 31.89 Citharichthys stigmaeus speckled sanddab 25 27.33 larval fish

- damaged unidentified larval fishes 19 23.69 Merluccius productus Pacific hake 19 22.72 Pleuronichthy

s spp. turbots 19 21.67 Icelinus spp. sculpins 15 19.88 larvae, unidentified yolksac unidentified yolksac larvae 14 18.88 Sciaenidae unid. croakers 10 13.71 Bathylagus ochotensis popeye blacksmelt 8 11.98 Citharichthys spp. sanddabs 5 7.91 Pleuronichthys guttulatus diamond turbot 5 6.85 Lepidogobius lepidus bay goby 6 6.84 Pleuronichthys ritteri spotted turbot 5 6.46 Pleuronectiformes unid. flatfishes 5 6.15 Sebastes spp. rockfishes 4 5.07 Engraulidae unid. anchovies 5 4.38 Odontopyxis trispinosa pygmy poacher 3 3.52 Citharichthys sordidus Pacific sanddab 2 2.82 Hypsoblennius spp

. combtooth blennies 3 2.75 Gobiidae unid. gobies 3 2.74 Semicossyphus pulcher California sheephead 2 2.53 Isopsetta isolepis butter sole 2 2.43 Leuroglossus stilbi

us California smoothtongue 2 2.27 Lyopsetta exilis slender sole 2 1.94 Typhlogobius californiensis blind goby 2 1.82 Argentina sialis Pacific argentine 1 1.64 Atherinopsis californiensis jacksmelt 1 1.64 Liparis spp. snailfishes 1 1.64 Ophidiidae uni

d. cusk

-eels 1 1.64 Bathymasteridae unid. ronquils 1 1.39 Seriphus politus queenfish 1 1.26 Gillichthys mirabilis longjaw mudsucker 1 1.25 Labrisomidae unid. labrisomid blennies 1 1.25 Ruscarius creaseri roughcheek sculpin 1 1.25 Paralichthyidae unid

. sand flounders 1 0.81 Total Fishes: 1,325 (continued)

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 - 9 Survey: SMBEA06 Start Date: 3/22/2006 Stations: M1- M3 (continued) Mean Concentration Taxon Common Name Count (#/1,000m3) Target Invertebrates Pugettia spp. (megalops) kelp crabs megal ops 13 20.72 Majidae unid. (megalops) spider crab megalops 10 11.32 unidentified crab (megalops) unidentified crab megalops 8 8.62 Paguridae unid. (megalops) hermit crab megalops 6 7.49 Loligo opalescens market squid 8 7.35 Emerita analoga (megalops) mole crabs megalops 6 6.82 Pinnixa spp. (megalops) pea crabs megalops 4 6.65 Cancer gracilis (megalops) slender crab megalops 2 2.66 Pachycheles spp. (megalops) porcelain crabs megalops 2 1.82 Anomura unid. (megalops) 1 1.73 Diogenidae (megalops) left

-handed hermit crabs megalops 1 1.02 Total Target Invertebrates: 61

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -10 Survey: SMBEA06 Start Date: 3/22/2006 Stations: O1 -O3 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Parophrys vetulus English sole 594 562.37 Genyonemus lineatus white croaker 203 199.87 Engraulis mordax northern anchovy 111 101.87 larval fish fragment unidentified larval fishes 92 92.26 Pleuronectidae unid. righteye flounders 97 91.61 Citharichthys stigmaeus speckled sanddab 97 87.07 Stenobrachius l

eucopsarus northern lampfish 72 68.63 Merluccius productus Pacific hake 72 68.37 Pleuronichthys verticalis hornyhead turbot 36 35.71 Pleuronectiformes unid. flatfishes 30 32.10 larval fish

- damaged unidentified larval fishes 32 30.98 larvae, unidenti

fied yolksac unidentified yolksac larvae 31 29.53 Pleuronichthys spp. turbots 27 25.21 Sciaenidae unid. croakers 23 24.60 Paralichthys californicus California halibut 21 20.23 Sebastes spp. rockfishes 19 19.78 Bathymasteridae unid. ronquils 12 10.63 Citharichthys spp. sanddabs 9 9.79 Bathylagus ochotensis popeye blacksmelt 6 6.06 Icelinus spp. sculpins 6 5.46 Pleuronichthys ritteri spotted turbot 6 5.29 Odontopyxis trispinosa pygmy poacher 4 4.89 Engraulidae unid. anchovies 3 4.31 Pleuronichthys guttulatus diamond turbot 4 4.21 Ophidiidae unid. cusk

-eels 3 3.78 Myctophidae unid. lanternfishes 4 3.38 Microstomus pacificus Dover sole 4 3.27 Bathylagidae unid. blacksmelt 3 2.63 Leuroglossus stilbius California smoothtongue 3 2.54 Typhlogobius californiensis blind goby 3 2.54 Chitonotus / Icelinus sculpins 3 2.53 Citharichthys sordidus Pacific sanddab 2 1.80 Lepidogobius lepidus bay goby 2 1.80 larval/post

-larval fish unid. larval fishes 2 1.79 Clinocottus spp. sculpins 1 1.69 Atherinopsis californiensis jacksmelt 1 1.45 Chaenopsidae unid. tube blennies 1 1.45 Cottidae unid. sculpins 1 1.45 Syngnathus spp. pipefishes 1 1.45 Zaniolepis spp. combfishes 1 1.06 Hypsoblennius spp

. combtooth blennies 1 0.93 Hexagrammidae unid. greenlings 1 0.89 Isopsetta isolepis butter sole 1 0.89 (continued)

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -11 Survey: SMBEA06 Start Date: 3/22/2006 Stations: O1 -O3 (continued) Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes (continued) Clinocottus analis wooly sculpin 1 0.88 Icelinus quadriseriatus yellowchin sculpin 1 0.88 Zaniolepis frenata shortspine combfish 1 0.88 Gibbonsia spp. clinid kelpfishes 1 0.74 Gobiidae unid. gobies 1 0.74 Total Fishes: 1,650 Target Invertebrates Majidae unid. (megalops) spider crab megalops 25 21.59 Loligo opalescens market squid 8 8.69 unidentified crab (megalops) unidentified crab megalops 9 8.14 Pugettia spp. (megalops) kelp crabs megalops 6 6.19 Paguridae unid. (megalops) hermit crab megalops 2 1.88 Emerita analoga (megalops) mole cra bs megalops 1 0.93 Total Target Invertebrates: 51

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -12 Survey: SMBEA06 Start Date: 3/22/2006 Stations: S1- S4 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Genyonemus lineatus white croaker 513 622.26 Parophrys vetulus English sole 88 107.79 Stenobrachius leucopsarus northern lampfish 88 104.38 Gobiidae unid. gobies 52 63.16 Lepidogobius lepidus bay goby 33 38.73 Paralichthys californicus California halibut 19 23.45 Engraulis mordax northern anchovy 18 23.13 Pleuronectida

e unid. righteye flounders 18 21.60 larval fish fragment unidentified larval fishes 15 20.07 Merluccius productus Pacific hake 16 19.24 Pleuronichthys spp. turbots 8 9.79 Pleuronichthys verticalis hornyhead turbot 7 8.14 Sciaenidae unid. croakers 7 7.60 Pleuronichthys guttulatus diamond turbot 7 7.41 Citharichthys stigmaeus speckled sanddab 6 7.37 Atherinopsis californiensis jacksmelt 6 7.35 larvae, unidentified yolksac unidentified yolksac larvae 6 6.61 larval fish

- damaged unidentified larval f ishes 4 4.61 Citharichthys sordidus Pacific sanddab 3 3.47 Lyopsetta exilis slender sole 2 2.76 Engraulidae unid. anchovies 2 2.58 Pleuronectiformes unid. flatfishes 2 2.37 Isopsetta isolepis butter sole 2 2.34 Atherinops affinis topsmelt 2 2.25 Hyp soblennius spp

. combtooth blennies 2 2.16 Scorpaenichthys marmoratus cabezon 1 1.74 Oligocottus spp. sculpins 1 1.51 Citharichthys spp. sanddabs 1 1.41 Paralichthyidae unid. sand flounders 1 1.41 Pleuronichthys ritteri spotted turbot 1 1.38 Bathylagus ochotensis popeye blacksmelt 1 1.21 Chitonotus / Icelinus sculpins 1 1.17 Syngnathidae unid. pipefishes 1 1.17 Leptocottus armatus Pacific staghorn sculpin 1 1.12 Liparis mucosus slimy snailfish 1 1.06 Sebastes spp. rockfishes 1 1.06 larval/post

-la

rval fish unid. larval fishes 1 1.01 Zaniolepis frenata shortspine combfish 1 1.01 Ophidiidae unid. cusk

-eels 1 0.99 Leuroglossus stilbius California smoothtongue 1 0.93 Total Fishes: 941 (continued)

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -13 Survey: SMBEA06 Start Date: 3/22/2006 Sta tions: S1- S4 (continued) Mean Concentration Taxon Common Name Count (#/1,000m3) Target Invertebrates Pugettia spp. (megalops) kelp crabs megalops 19 22.18 Emerita analoga (megalops) mole crabs megalops 11 12.13 Pinnixa spp. (megalops) pea crabs megalops 9 11.92 unidentified crab (megalops) unidentified crab megalops 6 7.58 Pachycheles spp. (megalops) porcelain crabs megalops 2 2.41 Cancer productus (megalops) red rock crab megalops 1 1.08 Grapsidae unid. (megalops) shore crab megalops 1 1.01 P aguridae unid. (megalops) hermit crab megalops 1 1.01 Total Target Invertebrates: 50

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -14 Survey: SMBEA07 Start Date: 4/13/2006 Stations: E1 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Engraulis mordax northern anchovy 51 11 7.54 Citharichthys stigmaeus speckled sanddab 17 37.49 Genyonemus lineatus white croaker 11 28.41 Hypsoblennius spp

. combtooth blennies 4 10.70 Stenobrachius leucopsarus northern lampfish 4 9.30 Pleuronichthys spp. turbots 2 5.02 larvae, unidentified yolksac unidentified yolksac larvae 2 4.62 larval/post

-larval fish unid. larval fishes 2 4.59 Atherinopsidae unid. silversides 1 3.05 Paralichthyidae unid. sand flounders 1 2.69 larval fish

- damaged unidentified larval fishes 1 2.68 Parophrys vetulus English sole 1 2.33 Ophidiidae unid. cusk

-eels 1 2.29 Sciaenidae unid. croakers 1 2.29 Labridae unid. wrasses 1 2.04 Pleuronectidae unid. righteye flounders 1 2.04 Total Fishes: 101 Eggs fish eggs unid. unidentified fish eggs 4,837 11,512.09 Par alichthyidae unid. (eggs) sand flounder eggs 885 2,290.12 Pleuronichthys spp. (eggs) turbot eggs 474 1,128.51 Engraulidae unid. (eggs) anchovy eggs 339 822.25 Citharichthys spp. (eggs) sanddab eggs 212 501.41 Sciaenidae unid. (eggs) croaker eggs 135 31 3.60 Pleuronectidae unid. (eggs) righteye flounder eggs 3 8.40 Scomber japonicus (eggs) Pacific mackerel eggs 1 2.33 Total Eggs: 6,886 Target Invertebrates Loligo opalescens market squid 58 175.16 Pugettia spp. (megalops) kelp crabs megalops 6 16.48 Pinnixa spp. (megalops) pea crabs megalops 3 6.50 Pinnotheres spp. (megalops) pea crab megalops 1 2.69 Cancer productus (megalops) red rock crab megalops 1 2.29 Pachycheles rudis (megalops) thickclaw porcelain crab 1 2.29 Porcellanidae unid. (megalops) porcelain crab megalops 1 2.29 Majidae unid. (megalops) spider crab megalops 1 2.17 Total Target Invertebrates: 72

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -15 Survey: SMBEA08 Start Date: 4/19/2006 Stations: E1 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Genyonem

us lineatus white croaker 264 828.38 Engraulis mordax northern anchovy 205 658.85 Gobiidae unid. gobies 87 279.31 Atherinopsis californiensis jacksmelt 25 87.96 Engraulidae unid. anchovies 14 44.88 Stenobrachius leucopsarus northern lampfish 13 42.38 Hypsoblennius spp

. combtooth blennies 10 34.98 larval fish fragment unidentified larval fishes 7 22.18 larvae, unidentified yolksac unidentified yolksac larvae 6 18.32 Citharichthys stigmaeus speckled sanddab 5 14.93 Sciaenidae unid. croakers 4 11.95 Lepidogobius lepidus bay goby 2 5.65 Acanthogobius flavimanus yellowfin goby 1 3.59 Atherinopsidae unid. silversides 1 3.59 larval fish

- damaged unidentified larval fishes 1 3.59 Paralichthys californicus California halibut 1 3.59 Pleuronectiformes unid. flatfishes 1 3.59 Hippoglossina stomata bigmouth sole 1 3.50 Pleuronichthys spp. turbots 1 3.50 Artedius lateralis smoothhead sculpin 1 3.02 Syngnathus spp. pipefishes 1 2.65 Total Fishes: 651 Eggs fish eggs unid. unidentified fish eggs 6,563 21,665.77 Engraulidae unid. (eggs) anchovy eggs 1,714 5,753.42 Paralichthyidae unid. (eggs) sand flounder eggs 1,307 4,543.15 Sciaen. / Paralich. / Labridae (eggs) fish eggs 633 2,009.97 Citharichthys spp. (eggs) sanddab eggs 535 1,724.10 Pleuronicht

hys spp. (eggs) turbot eggs 449 1,422.99 Sciaenidae unid. (eggs) croaker eggs 105 331.35 Genyonemus lineatus (eggs) white croaker eggs 26 92.69 Pleuronectidae unid. (eggs) righteye flounder eggs 12 43.08 Total Eggs: 11,344 Target Invertebrates Pinni xa spp. (megalops) pea crabs megalops 35 114.83 Petrolisthes spp. (megalops) porcelain crab megalops 21 69.04 Pugettia spp. (megalops) kelp crabs megalops 16 52.69 Brachyura unid. (megalops) unidentified crab megalops 8 26.33 Paguridae unid. (megalops) hermit crab megalops 8 24.82 Grapsidae unid. (megalops) shore crab megalops 7 23.94 Loligo opalescens market squid 4 13.93 Emerita analoga (megalops) mole crabs megalops 3 10.17 Cancer anthonyi (megalops) yellow crab megalops 3 9.29 Cancer spp. (megalops) cancer crabs megalops 1 3.59 (continued)

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -16 Survey: SMBEA08 Start Date: 4/19/2006 Stations: E1 (continued) Mean Concentration Taxon Common Name Count (#/1,000m3) Target Invertebrates (continued) Fabia subquadrata grooved mussel crab 1 3.59 Lophopanopeus spp. (megalops) black

-clawed crab megalops 1 3.59 Majidae unid. (megalops) spider crab megalops 1 2.99 Pinnotheres spp. (megalops) pea crab megalops 1 2.65 Total Target Invertebrates: 110

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -17 Survey: SMBEA08 Start Date: 4/19/2006 Stations: M1- M3 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Genyonemus lineatus white croaker 352 581.17 Engraulis mordax northern anchovy 215 353.52 Engraulidae unid. anchovies 170 283.34 Icelinus spp. sculpins 49 76.93 Parali chthys californicus California halibut 44 74.13 larvae, unidentified yolksac unidentified yolksac larvae 43 72.79 Parophrys vetulus English sole 22 37.59 Citharichthys stigmaeus speckled sanddab 21 34.83 Pleuronectidae unid. righteye flounders 19 32.16 Sciaenidae unid. croakers 17 28.50 larval fish fragment unidentified larval fishes 16 26.29 Stenobrachius leucopsarus northern lampfish 10 16.86 Pleuronichthys verticalis hornyhead turbot 7 10.87 Hypsoblennius spp

. combtooth blennies 7 10.74 Pleuronichthys ritteri spotted turbot 5 8.22 Chitonotus / Icelinus sculpins 4 6.56 Bathylagus ochotensis popeye blacksmelt 4 6.54 Bathymasteridae unid. ronquils 3 5.00 Pleuronectiformes unid. flatfishes 3 4.94 Chitonotus pugetensis roughback sculpin 3 4.92 Leuroglossus stilbius California smoothtongue 3 4.77 Atherinopsis californiensis jacksmelt 2 3.73 Gobiidae unid. gobies 2 3.73 Gillichthys mirabilis longjaw mudsucker 2 3.28 Merluccius productus Pacific hake 2 3.28 Pleuronichthys guttulatus diamond turbot 2 3.19 Lyopsetta exilis slender sole 2 3.12 Pleuronichthys spp. turbots 1 1.94 Citharichthys sordidus Pacific sanddab 1 1.72 Sebastes spp. rockfishes 1 1.72 Atherinopsidae unid. silversides 1 1.64 Ophidiidae unid. cusk

-eels 1 1.64 larval fish

- damaged unidentified larval fishes 1 1.63 Paralichthyidae unid. sand flounders 1 1.63 Typhlogobius californiensis blind goby 1 1.63 Artedius lateralis smoothhead sculpin 1 1.60 larval/post

-larval fish unid. larval fishes 1 1.49 Cottidae unid. sculpin s 1 1.47

Total Fishes: 1,040 Target Invertebrates Pinnixa spp. (megalops) pea crabs megalops 149 224.35 Pugettia spp. (megalops) kelp crabs megalops 29 48.21 Cancer anthonyi (megalops) yellow crab megalops 27 37.93 (continued)

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -18 Survey: SMBEA08 Start Date: 4/19/2006 Stations: M1- M3 (continued) Mean Concentration Taxon Common Name Count (#/1,000m3) Target Invertebrates (continued) Pinnotheres spp. (megalops) pea crab megalops 17 26.95 Paguridae unid. (megalops) hermit crab megalops 13 20.99 Majidae unid. (megalops) spider crab megalops 7 11.43 Emerita analoga (megalops) mole crabs megalops 6 10.72 Cancer antennarius (megalops) brown rock crab megalops 5 8.14 Loligo opalescens market squid 5 7.25 Grapsidae unid. (megalops) shore crab m egalops 4 6.41 Cancer gracilis (megalops) slender crab megalops 2 3.40 Brachyura unid. (megalops) unidentified crab megalops 1 1.76 Diogenidae (megalops) left

-handed hermit crabs megalops 1 1.76 Petrolisthes spp. (megalops) porcelain crab megalops 1 1.64 Porcellanidae unid. (megalops) porcelain crab megalops 1 1.64 unidentified crab (megalops) unidentified crab megalops 1 1.64 Total Target Invertebrates: 269

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -19 Survey: SMBEA08 Start Date: 4/19/2006 Stations: O1 -O3 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Engraulis mordax northern anchovy 175 232.99 Genyonemus lineatus white croaker 156 208.42 Icelinus spp. sculpins 97 129.30 Parophrys vetulus English sole 60 74.40 Engraulidae unid. anchovies 44 64.29 larvae, unidentified yolksac unidentified yolksac larvae 44 59.59 Paralichthys californicus California halibut 33 43.52 Pleuronectidae unid. righteye flounders 27 38.27 Citharichthys stigmaeus speckled sanddab 14 19.53 Bathymasteridae unid. ronquils 13 16.96 Leuroglossus stilbius California smoothtongue 10 12.58 Merluccius productus Pacific hake 8 10.32 Sciaenidae unid. croakers 5 7.28 larval/post

-larval fish unid. larval fishes 5 7.09 Lyopsetta exilis slender sole 5 6.97 Stenobrachius leucopsarus northern lampfish 6 6.92 Pleuronichthys verticalis hornyhead turbot 5 6.57 Pleuronichthys spp. turbots 4 5.98 Bathylagus ochotensis popeye blacksmelt 4 4.91 Zaniolepis frenata shortspine combfish 4 4.65 Hypsoblennius spp

. combtooth blennies 3 4.40 Pleuronichth

ys guttulatus diamond turbot 3 4.23 Ruscarius creaseri roughcheek sculpin 4 4.23 Pleuronichthys ritteri spotted turbot 3 4.19 Lepidopsetta bilineata rock sole 2 2.65 Lepidogobius lepidus bay goby 1 1.62 Ophidiidae unid. cusk

-eels 1 1.62 Triphoturus mexicanus Mexican lampfish 1 1.62 Bathylagidae unid. blacksmelt 1 1.51 Chitonotus / Icelinus sculpins 1 1.51 Chitonotus pugetensis roughback sculpin 1 1.51 Icelinus quadriseriatus yellowchin sculpin 1 1.51 Syngnathus spp. pipefishes 1 1.29 Gobiidae unid. gobies 1 1.28 Odontopyxis trispinosa pygmy poacher 1 1.28 Sebastes spp. rockfishes 1 1.18 Artedius lateralis smoothhead sculpin 1 1.06 larval fish fragment unidentified larval fishes 1 1.06 Total Fishes: 747 Target Invertebrates Pinnixa spp. (megalops) pea crabs megalops 126 152.67 Loligo opalescens market squid 58 73.83 Cancer anthonyi (megalops) yellow crab megalops 38 50.49 (continued)

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -20 Survey: SMBEA08 Start Date: 4/19/2006 Stations: O1 -O3 (continued) Mean Concentration Taxon Common Name Count (#/1,000m3) Target Invertebrates (continued) Paguridae unid. (megalops) hermit crab megalops 15 20.77 Cancer antennarius (megalops) brown rock crab megalops 12 15.39 Cancer gracilis (megalops) slender crab megalops 5 7.38 Pugettia spp. (megalops) kelp crabs megalops 5 6.88 Majidae unid. (megalops) spider crab megalops 4 6.12 Petrolisthes spp. (megalops) porcelain crab megalops 4 4.92 Pinnotheres spp. (megalops) pea crab megalops 2 2.92 Porcellanidae unid. (megalops) porcelain crab me galops 2 2.54 Emerita analoga (megalops) mole crabs megalops 1 1.62 Diogenidae (megalops) left

-handed hermit crabs megalops 1 1.39 unidentified crab (megalops) unidentified crab megalops 1 1.36 Lophopanopeus spp. (megalops) black

-clawed crab megalops 1 1.28 Total Target Invertebrates: 275

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -21 Survey: SMBEA08 Start Date: 4/19/2006 Stations: S1- S4 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Genyonemus lineatus white croaker 604 811.91 Engraulis mordax northern anchovy 420 603.27 Engraulidae unid. anchovies 136 168.09 Gobiidae unid. gobies 80 110.44 larvae, unidentified yolksac unidentified yolksac larvae 37 53.83 Citharichthys stigmaeus speckled sanddab 26 37.68 Stenobrachius leucopsarus northern lampfish 25 35.35 Hyp soblennius spp

. combtooth blennies 24 34.97 Paralichthys californicus California halibut 20 31.20 Atherinopsis californiensis jacksmelt 17 24.88 Atherinopsidae unid. silversides 14 19.33 Lepidogobius lepidus bay goby 13 18.64 Sciaenidae unid. croakers 14 18.40 larval fish fragment unidentified larval fishes 11 16.25 Pleuronectidae unid. righteye flounders 11 15.96 Pleuronichthys guttulatus diamond turbot 4 5.25 Parophrys vetulus English sole 4 5.11 Pleuronichthys ritteri spotted turbot 2 3.24 Lab risomidae unid. labrisomid blennies 2 2.73 larval fish

- damaged unidentified larval fishes 2 2.44 Pleuronectiformes unid. flatfishes 2 2.44 Bathylagus ochotensis popeye blacksmelt 1 1.50 larval/post

-larval fish unid. larval fishes 1 1.48 Triphoturus mexicanus Mexican lampfish 1 1.48 Icelinus spp. sculpins 1 1.31 Citharichthys sordidus Pacific sanddab 1 1.29 Total Fishes: 1,473 Target Invertebrates Pinnixa spp. (megalops) pea crabs megalops 280 383.30 Pugettia spp. (megalops) kelp crabs megalops 68 92.44 Pinnotheres spp. (megalops) pea crab megalops 29 39.96 Majidae unid. (megalops) spider crab megalops 19 26.46 Petrolisthes spp. (megalops) porcelain crab megalops 13 17.61 Paguridae unid. (megalops) hermit crab megalops 11 14.07 Emerita anal

oga (megalops) mole crabs megalops 8 11.23 Brachyura unid. (megalops) unidentified crab megalops 7 9.58 Porcellanidae unid. (megalops) porcelain crab megalops 5 6.56 Grapsidae unid. (megalops) shore crab megalops 3 3.88 Cancer anthonyi (megalops) yellow crab megalops 2 2.76 Diogenidae (megalops) left

-handed hermit crabs megalops 2 2.44 unidentified crab (megalops) unidentified crab megalops 2 2.26 Total Target Invertebrates: 449

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -22 Survey: SMBEA09 Start Date: 5/3/2006 Stations: E1 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Engraulis mordax northern anchovy 329 956.11 Engraulidae unid. anchovies 207 616.28 Sciaenidae unid. croakers 22 65.10 Genyonemus lineatus white croaker 12 36.45 larvae, unidentified yolksac unidentified yolksac larvae 10 31.03 Hypsoblennius spp

. combtooth blennies 8 23.89 Stenobrachius leucopsarus northern lampfish 8 22.93 Gobiidae unid. gobies 5 14.71 Paralichthys californicus California halibut 5 14.47 Citharichthys stigmaeus speckled sandda b 4 11.08 larval fish fragment unidentified larval fishes 3 10.00 Pleuronichthys guttulatus diamond turbot 3 9.51 Seriphus politus queenfish 2 5.74 Oxyjulis californica senorita 2 5.45 Atherinopsis californiensis jacksmelt 2 5.34 Citharichthys sordid

us Pacific sanddab 1 3.35 Gibbonsia spp. clinid kelpfishes 1 2.72 Cheilotrema saturnum black croaker 1 2.67 Pleuronectidae unid. righteye flounders 1 2.67 Total Fishes: 626 Eggs fish eggs unid. unidentified fish eggs 10,116 29,900.89 Paralichthyida

e unid. (eggs) sand flounder eggs 2,825 8,357.53 Engraulidae unid. (eggs) anchovy eggs 1,748 5,255.72 Citharichthys spp. (eggs) sanddab eggs 934 2,871.35 Pleuronichthys spp. (eggs) turbot eggs 492 1,427.86 Sciaenidae unid. (eggs) croaker eggs 227 697.0 5 Genyonemus lineatus (eggs) white croaker eggs 51 137.93 Pleuronectidae unid. (eggs) righteye flounder eggs 12 32.04 Total Eggs: 16,405 Target Invertebrates Pinnixa spp. (megalops) pea crabs megalops 9 24.62 Cancer anthonyi (megalops) yellow crab m egalops 5 13.35 Petrolisthes spp. (megalops) porcelain crab megalops 2 5.54 Paguridae unid. (megalops ) hermit crab megalops 1 2.67 Pugettia spp. (megalops) kelp crabs megalops 1 2.67 Loligo opalescens market squid 1 2.67 Total Target Invertebrates: 19

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -23 Survey: SMBEA10 Start Date: 5/16/2006 Stations: E1 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Engraulis mordax northern anchovy 62 179.34 Engraulidae unid. anchovies 56 155.01 Hypsoblennius spp

. combtooth blennies 16 43.08 larvae, unidentified yolksac unidentified yolksac larvae 5 14.48 Icelinus spp. sculpins 3 9.10 Atherinopsidae unid. silversides 2 4.98 Typhlogobius californiensis blind goby 2 4.98 Genyonemus lineatus white croaker 1 3.03 larval fish fragment unid entified larval fishes 1 3.03 Pleuronichthys guttulatus diamond turbot 1 3.03 Citharichthys stigmaeus speckled sanddab 1 2.55 Atherinopsis californiensis jacksmelt 1 2.42 Atractoscion nobilis white seabass 1 2.42 Sciaenidae unid. croakers 1 2.42 Total Fishes: 153 Eggs fish eggs unid. unidentified fish eggs 3,435 9,391.72 Engraulidae unid. (eggs) anchovy eggs 1,290 3,746.94 Paralichthyidae unid. (eggs) sand flounder eggs 722 2,052.02 Pleuronichthys spp. (eggs) turbot eggs 219 637.25 Citharichthy

s spp. (eggs) sanddab eggs 17 60.63 Pleuronectidae unid. (eggs) righteye flounder eggs 1 3.57 Genyonemus lineatus (eggs) white croaker eggs 1 3.03 Total Eggs: 5,685 Target Invertebrates Pugettia spp. (megalops) kelp crabs megalops 1 3.03 Lophopanopeus spp. (megalops) black

-clawed crab megalops 1 2.55 unidentified crab (megalops) unidentified crab megalops 1 2.55 Total Target Invertebrates: 3

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -24 Survey: SMBEA10 Start Date: 5/16/2006 Stations: M1- M3 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Engraulidae unid. anchovies 633 959.90 Engraulis mordax northern anchovy 108 167.46 Hypsoblennius spp

. combtooth blennies 22 32.41 Chitonotus / Icelinus sculpins 17 25.31 Genyonemus lineatus white croaker 16 24.84 larvae, unide

ntified yolksac unidentified yolksac larvae 9 13.71 Paralichthys californicus California halibut 7 10.42 larval fish fragment unidentified larval fishes 6 9.10 Zaniolepis spp. combfishes 6 8.89 Citharichthys stigmaeus speckled sanddab 6 8.72 Sciaenida e unid. croakers 3 4.51 Pleuronichthys ritteri spotted turbot 3 4.48 Icelinus quadriseriatus yellowchin sculpin 2 3.65 Typhlogobius californiensis blind goby 2 3.31 Hexagrammidae unid. greenlings 2 2.89 Gillichthys mirabilis longjaw mudsucker 2 2.88 larval/post

-larval fish unid. larval fishes 2 2.88 Seriphus politus queenfish 2 2.84 Peprilus simillimus Pacific butterfish 2 2.73 Atractoscion nobilis white seabass 1 1.70 larval fish

- damaged unidentified larval fishes 1 1.70 Cottidae unid. sculpin s 1 1.56 Gobiidae unid. gobies 1 1.56 Atherinopsidae unid. silversides 1 1.52 Cheilotrema saturnum black croaker 1 1.52 Pleuronichthys spp. turbots 1 1.52 Icelinus spp. sculpins 1 1.48 Citharichthys spp. sanddabs 1 1.32 Total Fishes: 859 Target In

vertebrates Pinnixa spp. (megalops) pea crabs megalops 30 43.60 Pugettia spp. (megalops) kelp crabs megalops 7 10.70 Cancer anthonyi (megalops) yellow crab megalops 2 2.89 unidentified crab (megalops) unidentified crab megalops 2 2.84 Emerita analoga (megalops) mole crabs megalops 1 1.56 Majidae unid. (megalops) spider crab megalops 1 1.56 Paguridae unid. (megalops) hermit crab megalops 1 1.44 Cancer spp. (megalops) cancer crabs megalops 1 1.40 Total Target Invertebrates: 45

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -25 Survey: SMBEA10 Start Date: 5/16/2006 Stations: O1 -O3 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Engraulidae unid. anchovies 1,405 1,944.42 Engraulis mordax northern anchovy 275 341.15 Genyonemus lineatus white croaker 27 38.88 Paralichthys californicus California halibut 21 26.82 Hypsoblennius spp

. combtooth blennies 11 16.73 Citharichthys stigmaeus speckled sanddab 9 12.36 Pleuronichthys verticalis hornyhead turbot 4 8.33 Pleuronichthys ritteri spotted turbot 6 7.72 Icelinus quadriseriat

us yellowchin sculpin 5 6.44 Pleuronichthys spp. turbots 4 6.43 larval fish fragment unidentified larval fishes 5 6.39 Gobiidae unid. gobies 4 5.55 Pleuronectidae unid. righteye flounders 4 5.21 Pleuronectiformes unid. flatfishes 3 4.97 Zaniolepis spp. combfishes 3 3.96 larvae, unidentified yolksac unidentified yolksac larvae 3 3.86 Sciaenidae unid. croakers 3 3.25 Cottidae unid. sculpins 2 2.78 Parophrys vetulus English sole 2 2.70 Pleuronichthys guttulatus diamond turbot 2 2.59 Atractoscion no

bilis white seabass 2 2.35 Zaniolepis latipinnis longspine combfish 2 1.80 Gillichthys mirabilis longjaw mudsucker 1 1.45 Chitonotus / Icelinus sculpins 1 1.34 Citharichthys spp. sanddabs 1 1.33 Hypsypops rubicundus garibaldi 1 1.32 Zaniolepis frenat

a shortspine combfish 1 1.30 Peprilus simillimus Pacific butterfish 1 0.90 Total Fishes: 1,808 Target Invertebrates Pinnixa spp. (megalops) pea crabs megalops 52 49.04 Cancer anthonyi (megalops) yellow crab megalops 5 9.27 Pugettia spp. (megalops) k elp crabs megalops 6 8.36 Cancer antennarius (megalops) brown rock crab megalops 3 3.89 unidentified crab (megalops) unidentified crab megalops 2 3.01 Emerita analoga (megalops) mole crabs megalops 2 1.80 Pinnotheres spp. (megalops) pea crab megalops 1 1.39 Lophopanopeus spp. (megalops) black

-clawed crab megalops 1 1.27 Total Target Invertebrates: 72

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -26 Survey: SMBEA10 Start Date: 5/16/2006 Stations: S1- S4 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Engraulidae unid. ancho vies 186 262.57 Engraulis mordax northern anchovy 51 68.42 Hypsoblennius spp

. combtooth blennies 33 50.32 Genyonemus lineatus white croaker 14 22.02 larval fish fragment unidentified larval fishes 9 12.24 Gobiidae unid. gobies 7 11.17 Chitonotus / Icelinus sculpins 7 11.11 Sciaenidae unid. croakers 4 5.75 larvae, unidentified yolksac unidentified yolksac larvae 4 5.42 Atherinopsidae unid. silversides 3 4.33 Hypsypops rubicundus garibaldi 2 2.85 Cheilotrema saturnum black croaker 2 2.82 larval fish

- damaged unidentified larval fishes 2 2.71 Peprilus simillimus Pacific butterfish 2 2.70 Zaniolepis frenata shortspine combfish 2 2.70 Seriphus politus queenfish 1 1.70 Pleuronichthys spp. turbots 1 1.44 Paralichthys californicus California halibu t 1 1.40 Semicossyphus pulcher California sheephead 1 1.40 Atractoscion nobilis white seabass 1 1.38 Citharichthys stigmaeus speckled sanddab 1 1.25 Total Fishes: 334 Target Invertebrates Pinnixa spp. (megalops) pea crabs megalops 18 24.80 unidenti fied crab (megalops) unidentified crab megalops 3 4.80 Cancer anthonyi (megalops) yellow crab megalops 3 4.23 Pugettia spp. (megalops) kelp crabs megalops 3 4.16 Diogenidae (megalops) left

-handed hermit crabs megalops 1 1.40 Cancer antennarius (megalops) brown rock crab megalops 1 1.38 Total Target Invertebrates: 29

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -27 Survey: SMBEA11 Start Date: 6/1/2006 Stations: E1 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Hypsoblennius spp

. combtooth blennies 35 114.09 Genyonemus lin

eatus white croaker 9 29.53 Engraulis mordax northern anchovy 7 22.67 Icelinus spp. sculpins 3 9.88 Paralichthys californicus California halibut 2 6.51 larvae, unidentified yolksac unidentified yolksac larvae 1 3.96 Semicossyphus pulcher California sh eephead 1 3.96 Gobiidae unid. gobies 1 3.39 larval/post

-larval fish unid. larval fishes 1 3.39 Oxylebius pictus painted greenling 1 3.39 Pleuronichthys guttulatus diamond turbot 1 3.39 Pleuronichthys ritteri spotted turbot 1 3.39 larval fish fragment unidentified larval fishes 1 3.36 Total Fishes: 64 Eggs fish eggs unid. unidentified fish eggs 1,504 5,162.21 Sciaen. / Paralich. / Labridae (eggs) fish eggs 369 1,263.27 Pleuronichthys spp. (eggs) turbot eggs 185 617.82 Sciaenidae unid. (eggs) cro aker eggs 9 35.70 Roncador stearnsi (eggs) spotfin croaker eggs 6 23.80 Oxyjulis californica (eggs) senorita eggs 1 3.97 Pleuronectidae unid. (eggs) righteye flounder eggs 1 3.22 Total Eggs: 2,075 Target Invertebrates Pinnixa spp. (megalops) pea cra bs megalops 16 51.59 Pachycheles rudis (megalops) thickclaw porcelain crab 2 6.77 Emerita analoga (megalops) mole crabs megalops 1 3.39 Lophopanopeus bellus (megalops) black

-claw crestleg crab 1 3.39 Petrolisthes cinctipes (

megalops) flat porcelain c rab megalops 1 3.39 Total Target Invertebrates: 21

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -28 Survey: SMBEA12 Start Date: 6/14/2006 Stations: E1 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Sciaenidae unid. croakers 86 346.16 Seriphus politus queenfish 31 125.98 Hyp soblennius spp

. combtooth blennies 23 82.82 Gobiidae unid. gobies 17 58.38 Paralichthys californicus California halibut 14 57.39 Citharichthys stigmaeus speckled sanddab 14 51.45 larval fish

- damaged unidentified larval fishes 9 35.97 Cheilotrema saturnum black croaker 6 22.11 Pleuronichthys spp. turbots 5 19.07 Atherinopsidae unid. silversides 5 16.73 larval fish fragment unidentified larval fishes 4 16.62 Sphyraena argentea Pacific barracuda 4 16.11 Genyonemus lineatus white croaker 3 12.05 Ox yjulis californica senorita 2 8.57 Pleuronichthys verticalis hornyhead turbot 2 8.05 Pleuronectidae unid. righteye flounders 2 7.28 Citharichthys sordidus Pacific sanddab 1 4.29 Xystreurys liolepis fantail sole 1 4.29 Engraulidae unid. anchovies 1 4.0 2 Myctophidae unid. lanternfishes 1 3.48 Pleuronichthys guttulatus diamond turbot 1 3.48 Engraulis mordax northern anchovy 1 3.26 Oxylebius pictus painted greenling 1 3.26 Total Fishes: 234 Eggs fish eggs unid. unidentified fish eggs 8,702 33,467.29 Sciaen. / Paralich. / Labridae (eggs) fish eggs 1,029 3,701.10 Pleuronichthys spp. (eggs) turbot eggs 132 520.29 Citharichthys spp. (eggs) sanddab eggs 125 435.12 Sciaenidae unid. (eggs) croaker eggs 2 8.05 Engraulidae unid. (eggs) anchovy eggs 1 4.34 Total Eggs: 9,991 Target Invertebrates Pachycheles rudis (megalops) thickclaw porcelain crab 6 20.42 Pinnixa spp. (megalops) pea crabs megalops 2 6.95 Cancer anthonyi (megalops) yellow crab megalops 2 6.73 Paguridae unid. (megalops) hermit crab megalops 1 3.48 Pachycheles pubescens (megalops) pubescent porcelain crab 1 3.26 Porcellanidae unid. (megalops) porcelain crab megalops 1 3.26 Total Target Invertebrates: 13

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -29 Survey: SMBEA12 Start Date: 6/14/2006 Stations: M1- M3 Mean Concentrat

ion Taxon Common Name Count (#/1,000m3) Fishes Sciaenidae unid. croakers 61 235.27 Seriphus politus queenfish 48 133.33 Hypsoblennius spp

. combtooth blennies 50 119.46 Citharichthys stigmaeus speckled sanddab 36 119.27 Paralichthys californicus California halibut 25 97.93 larvae, unidentified yolksac unidentified yolksac larvae 30 91.39 Sphyraena argentea Pacific barracuda 21 63.10 Pleuronichthys verticalis hornyhead turbot 14 41.06 Engraulis mordax northern anchovy 12 30.44 Icelinus spp. sculpins 5 21.56 larval fish fragment unidentified larval fishes 7 21.46 Citharichthys sordidus Pacific sanddab 3 16.86 Stenobrachius leucopsarus northern lampfish 4 15.55 Pleuronichthys spp. turbots 3 13.04 Lepidogobius lepidus bay goby 1 6.59 Myctophi dae unid. lanternfishes 1 6.59 Engraulidae unid. anchovies 2 5.81 Zaniolepis frenata shortspine combfish 2 4.68 Chitonotus / Icelinus sculpins 1 4.55 Parophrys vetulus English sole 1 4.55 Semicossyphus pulcher California sheephead 2 4.48 Ophidiidae u

nid. cusk

-eels 2 4.27 larval fish

- damaged unidentified larval fishes 1 3.68 Cheilotrema saturnum black croaker 1 2.34 Triphoturus mexicanus Mexican lampfish 1 2.34 Genyonemus lineatus white croaker 1 2.14 larval/post

-larval fish unid. larval fishes 1 2.14 Oxyjulis californica senorita 1 2.14 Total Fishes: 337 Target Invertebrates Pinnixa spp. (megalops) pea crabs megalops 7 19.92 Majidae unid. (megalops) spider crab megalops 3 11.00 Pachycheles spp. (megalops) porcelain crabs megalops 3 8.99 Cancer anthonyi (megalops) yellow crab megalops 2 4.27 Panulirus interruptus (phyllosome) California spiny lobster 1 3.68 Brachyura unid. (megalops) unidentified crab megalops 1 2.14 Petrolisthes spp. (megalops) porcelain crab megalops 1 2.14 Pugettia spp. (megalops) kelp crabs megalops 1 2.14 Total Target Invertebrates: 19

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -30 Survey: SMBEA12 Start Date: 6/14/2006 Stations: O1 -O3 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Seriphus politus queenfish 73 224.84 Hypsoblennius spp

. combtooth blennies 55 156.94 Engraulis mordax northern anchovy 39 119.39 Citharichthys stigmaeus speckled sanddab 31 93.32 Pleuronichthys verticalis hornyhead turbot 24 91.76 Paralichthys californicus California halibut 27 90.43 Pleuronichthys s

pp . turbots 23 74.74 Sciaenidae unid. croakers 23 69.09 Icelinus spp. sculpins 21 62.53 Sphyraena argentea Pacific barracuda 21 57.90 larvae, unidentified yolksac unidentified yolksac larvae 16 44.41 Citharichthys sordidus Pacific sanddab 15 42.06 Engraulidae unid. anchovies 7 24.05 Citharichthys spp. sanddabs 5 14.87 Pleuronichthys ritteri spotted turbot 4 13.26 larval fish fragment unidentified larval fishes 5 12.45 Symphurus atricauda California tonguefish 4 12.07 Atractoscion nobilis white se abass 3 7.50 Genyonemus lineatus white croaker 3 7.47 Zaniolepis frenata shortspine combfish 2 7.21 Stenobrachius leucopsarus northern lampfish 2 7.18 unidentified fish, damaged unidentified damaged fish 2 5.04 Pleuronectiformes unid. flatfishes 1 5.03 Myctophidae unid. lanternfishes 2 4.98 Lepidogobius lepidus bay goby 2 4.95 Peprilus simillimus Pacific butterfish 2 4.86 Umbrina roncador yellowfin croaker 1 4.69 Chitonotus / Icelinus sculpins 1 3.53 Parophrys vetulus English sole 1 3.53 Cheilot rema saturnum black croaker 1 2.52 Icelinus quadriseriatus yellowchin sculpin 1 2.52 Roncador stearnsi spotfin croaker 1 2.52 Sebastes spp. rockfishes 1 2.52 Artedius lateralis smoothhead sculpin 1 2.49 Gobiidae unid. gobies 1 2.49 Hippoglossina stom

ata bigmouth sole 1 2.49 Labridae unid. wrasses 1 2.49 larval/post

-larval fish unid. larval fishes 1 2.49 Brosmophycis marginata red brotula 1 2.43 Oxyjulis californica senorita 1 2.43 Total Fishes: 426 (continued)

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -31 Survey: SMBEA12 Start Date: 6/14/2006 Stations: O1 -O3 (continued) Mean Concentration Taxon Common Name Count (#/1,000m3) Target Invertebrates Pinnixa spp. (megalops) pea crabs megalops 11 38.52 Cancer anthonyi (megalops) yellow crab megalops 9 28.15 Majidae unid. (megalops) spider crab megalops 7 19.91 Lophopanopeus spp. (megalops) black

-clawed crab megalops 4 16.01 Pachycheles spp. (megalops) porcelain crabs megalops 2 10.05 Grapsidae unid. (megalops) shore crab megalops 3 9.98 Pugettia spp. (megalops) kelp crabs megal ops 3 9.95 Brachyura unid. (megalops) unidentified crab megalops 2 7.46 Cancer gracilis (megalops) slender crab megalops 2 7.46 Cancer antennarius (megalops) brown rock crab megalops 1 5.03 Pinnotheridae (megalops) pea crab megalops 1 3.53 Petrolisthe

s spp. (megalops) porcelain crab megalops 1 2.52 Paguridae unid. (megalops) hermit crab megalops 1 2.49 Total Target Invertebrates: 47

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -32 Survey: SMBEA12 Start Date: 6/14/2006 Stations: S1- S4 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Sciaenidae unid. croakers 155 310.86 larvae, unidentified yolksac unidentified yolksac larvae 80 143.51 Seriphus politus queenfish 50 105.56 Citharichthys stigmaeus speckled sanddab 48 90.31 Paralichthys californicus California halibut 3 6 68.20 Gobiidae unid. gobies 37 66.00 larval fish fragment unidentified larval fishes 26 56.10 Cheilotrema saturnum black croaker 12 25.73 Sphyraena argentea Pacific barracuda 10 20.58 Hypsoblennius spp

. combtooth blennies 10 16.67 larval fish

- damaged unidentified larval fishes 8 16.05 Pleuronichthys spp. turbots 7 12.31 Icelinus spp. sculpins 7 11.81 Umbrina roncador yellowfin croaker 4 9.14 Atherinopsidae unid. silversides 3 8.08 Hypsypops rubicundus garibaldi 3 6.12 Menticirrhus undulatus California corbina 3 6.12 Oxyjulis californica senorita 3 5.81 Pleuronichthys guttulatus diamond turbot 1 3.97 Pleuronichthys verticalis hornyhead turbot 2 3.31 Symphurus atricauda California tonguefish 1 2.04 Engraulidae unid. anchovies 1 1.73 Pleur onichthys ritteri spotted turbot 1 1.73 Engraulis mordax northern anchovy 1 1.59 Genyonemus lineatus white croaker 1 1.52 Pleuronectiformes unid. flatfishes 1 1.52 Typhlogobius californiensis blind goby 1 1.52 Citharichthys spp. sanddabs 1 1.50 Zaniolepis frenata shortspine combfish 1 1.50 Total Fishes: 514 Target Invertebrates Lophopanopeus spp. (megalops) black

-clawed crab megalops 8 12.37 Pinnixa spp. (megalops) pea crabs megalops 8 12.31 Petrolisthes spp. (megalops) porcelain crab megalops 8 12.21 Pachycheles spp. (megalops) porcelain crabs megalops 8 12.14 Paguridae unid. (megalops) hermit crab megalops 6 9.18 Cancer anthonyi (megalops) yellow crab megalops 3 4.70 Porcellanidae unid. (megalops) porcelain crab megalops 3 4.54 Panulirus i

nterruptus (phyllosome) California spiny lobster 1 1.59 Cancer antennarius (megalops) brown rock crab megalops 1 1.52 Grapsidae unid. (megalops) shore crab megalops 1 1.52 Total Target Invertebrates: 47

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -33 Survey: SMBEA13 Start Date: 6/28/2006 Stations: E1 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Gobiidae unid. gobies 6 15.44 Hypsoblennius spp

. combtooth blennies 5 13.82 Sciaenidae unid. croakers 2 5.52 Cheilotrema saturnum black croaker 1 3.52 Menticirrhus undulatus California corbina 1 2.57 Paralabrax spp. sand bass 1 2.27 Pleuronichthys spp. turbots 1 2.27 Total Fishes: 17 Eggs fish eggs unid. unidentified fish eggs 1,205 3,138.90 Sciaen. / Paralich. / Labridae (eggs) fish eggs 337 880.10 Pleuronichthys spp. (eggs) turbot eggs 69 187.08 Total Eggs: 1,611 Target Invertebrates Lophopanopeus spp. (megalops) black

-clawed crab megalops 3 8.33 Pinnixa spp. (megalops) pea crabs megalops 3 8.33 Cancer anthonyi (megalops) yellow crab megalops 3 8.01 unidentified crab (megalops) unidentified crab megalops 1 2.88 Hippoidea (megalops) mole crab megalops 1 2.57 Paguridae unid. (megalops) hermit crab megalops 1 2.57 Panulirus interruptus (phyllosome) California spiny lobster 1 2.57 Total Target Invertebrates: 13

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -34 Survey: SMBEA14 Start Date: 7/12/2006 Stations: E1 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes larvae, unidentified yolksac unidentified yolksac larvae 62 202.48 Sciaenidae unid. croakers 43 136.07 Paralichthys califor

nicus California halibut 24 64.55 Seriphus politus queenfish 9 29.73 Pleuronichthys ritteri spotted turbot 7 18.89 Hypsoblennius spp

. combtooth blennies 4 14.12 Citharichthys stigmaeus speckled sanddab 5 13.12 Cheilotrema saturnum black croaker 4 11.6 0 Xystreurys liolepis fantail sole 4 11.41 Paralabrax spp. sand bass 3 10.23 Genyonemus lineatus white croaker 3 7.37 Menticirrhus undulatus California corbina 2 6.95 larval/post

-larval fish unid. larval fishes 2 6.04 Engraulis mordax northern anchovy 2 5.80 Pleuronichthys spp. turbots 2 4.47 Labrisomidae unid. labrisomid blennies 1 3.50 Symphurus atricauda California tonguefish 1 3.45 Atherinopsidae unid. silversides 1 2.90 Hippoglossina stomata bigmouth sole 1 2.90 Icelinus spp. sculpins 1 2.90 Pleuronichthys verticalis hornyhead turbot 1 2.90 Atractoscion nobilis white seabass 1 2.60 larval fish fragment unidentified larval fishes 1 2.60 Hexagrammidae unid. greenlings 1 2.24 Pleuronectidae unid. righteye flounders 1 2.24 Pleuronichthys guttulatus diamond turbot 1 2.24 Roncador stearnsi spotfin croaker 1 2.24 Zaniolepis spp. combfishes 1 2.24 Total Fishes: 189 Eggs fish eggs unid. unidentified fish eggs 923 5,651.02 Sciaen. / Paralich. / Labridae (eggs) fish eggs 309 1,914.65 Citharichthys spp. (eggs) sanddab eggs 59 401.32 Pleuronichthys spp. (eggs) turbot eggs 51 297.58 Paralabrax spp. (eggs) sand bass eggs 2 13.96 Engraulidae unid. (eggs) anchovy eggs 2 12.28 Sphyraena argentea (eggs) Pacific barracuda eggs 1 6.83 Total Eggs : 1,347 (continued)

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -35 Survey: SMBEA14 Start Date: 7/12/2006 Stations: E1 (continued) Mean Concentration Taxon Common Name Count (#/1,000m3) Target Invertebrates Pinnixa spp. (megalops) pea crabs megalops 26 64.76 Pachycheles spp. (megalops) porcelain crabs megalops 13 32.38 Lophopanopeus spp. (megalops) black

-clawed crab megalops 13 31.72 Cancer anthonyi (megalops) yellow crab megalops 12 29.48 Cancer antennarius (megalops) brown rock crab megalops 4 10.27 Paguridae unid. (megalops) her mit crab megalops 3 8.03 Pugettia spp. (megalops) kelp crabs megalops 3 8.03 Diogenidae (megalops) left

-handed hermit crabs 1 2.90 Hippoidea (megalops) mole crab megalops 1 2.90 Majidae unid. (megalops) spider crab megalops 1 2.90 Petrolisthes spp. (megalops) porcelain crab megalops 1 2.90 Porcellanidae unid. (megalops) porcelain crab megalops 1 2.24 Total Target Invertebrates: 79

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -36 Survey: SMBEA14 Start Date: 7/12/2006 Stations: M1- M3 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes larvae, unidentified yolksac unidentified yolksac larvae 294 411.77 Paralabrax spp. sand bass 203 280.25 Sciaenidae unid. croakers 189 255.43 Seriphus politus queenfish 175 238.01 Haemulidae unid. grunts 104 146.94 Paralichthys californicus California halibut 96 136.14 Pleuronichthys verticalis hornyhead turbot 61 83.21 Citharichthys stigmaeus speckled sanddab 53 74.53 Hypsoblennius spp

. combtooth blennies 44 64.00 larval fish

- damaged unidentified larval fishes 43 58.39 Symphurus at

ricauda California tonguefish 33 45.50 Genyonemus lineatus white croaker 18 26.10 Umbrina roncador yellowfin croaker 18 24.80 Pleuronichthys ritteri spotted turbot 18 23.32 Xystreurys liolepis fantail sole 12 15.85 Cheilotrema saturnum black croaker 1 1 14.31 Engraulidae unid. anchovies 7 11.06 Pleuronichthys spp. turbots 8 10.07 Gobiidae unid. gobies 6 9.60 larval fish fragment unidentified larval fishes 7 8.71 Ophidiidae unid. cusk

-eels 6 8.18 Peprilus simillimus Pacific butterfish 5 7.42 Paral ichthyidae unid. sand flounders 5 7.26 larval/post

-larval fish unid. larval fishes 5 6.58 Chitonotus / Icelinus sculpins 3 5.33 Sphyraena argentea Pacific barracuda 3 5.14 Semicossyphus pulcher California sheephead 3 4.50 Oxyjulis californica senorita 3 4.31 Hypsypops rubicundus garibaldi 2 3.25 Anisotremus davidsonii sargo 2 2.95 Typhlogobius californiensis blind goby 2 2.93 Zaniolepis spp. combfishes 2 2.81 Pleuronectiformes unid. flatfishes 2 2.57 Atractoscion nobilis white seabass 2 2.56 Pla tichthys stellatus starry flounder 2 2.36 Cynoglossidae unid. tongue soles 1 1.75 Pleuronichthys guttulatus diamond turbot 1 1.61 Labrisomidae unid. labrisomid blennies 1 1.50 Citharichthys sordidus Pacific sanddab 1 1.43 Triphoturus mexicanus Mexican lampfish 1 1.43 Pleuronectidae unid. righteye flounders 1 1.38 Odontopyxis trispinosa pygmy poacher 1 1.29 Hypsoblennius jenkinsi mussel blenny 1 1.18 (continued)

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -37 Survey: SMBEA14 Start Date: 7/12/2006 Stations: M1- M3 (continued) Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes (continued) Roncador stearnsi spotfin croaker 1 1.08 Sebastes spp. rockfishes 1 1.08 Syngnathus spp. pipefishes 1 1.08 Total Fishes: 1,458 Target Invertebrates Panulirus interruptus (phyllosome) Cal ifornia spiny lobster 109 154.41 Pinnixa spp. (megalops) pea crabs megalops 97 145.09 Pugettia spp. (megalops) kelp crabs megalops 64 92.90 Cancer anthonyi (megalops) yellow crab megalops 42 64.11 Lophopanopeus spp. (megalops) black

-clawed crab megalops 24 36.46 Cancer antennarius (megalops) brown rock crab megalops 21 32.07 Porcellanidae unid. (megalops) porcelain crab megalops 12 20.25 Majidae unid. (megalops) spider crab megalops 14 19.76 Pachycheles spp. (megalops) porcelain crabs megalops 9 14.56 Brachyura unid. (megalops) unidentified crab megalops 5 7.96 Paguridae unid. (megalops) hermit crab megalops 3 4.40 Petrolisthes spp. (megalops) porcelain crab megalops 3 4.34 Diogenidae (megalops) left

-handed hermit crabs megalops 1 1.83 Emerita analoga (megalops) mole crabs megalops 1 1.29 Pinnotheres spp. (megalops) pea crab megalops 1 1.29 Portunus xantusii (megalops) Xantus' swimming crab 1 1.29 Cancer spp. (megalops) cancer crabs megalops 1 1.08 Total Target Invertebrates: 408

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -38 Sur vey: SMBEA14 Start Date: 7/12/2006 Stations: O1 -O3 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Seriphus politus queenfish 139 191.33 larvae, unidentified yolksac unidentified yolksac larvae 143 189.11 Paralichthys californicus California halibut 119 147.90 Paralabrax spp. sand bass 104 135.46 Haemulidae unid. grunts 84 111.32 Pleuronichthys verticalis hornyhead turbot 73 94.81 Sciaenidae unid. croakers 45 60.13 Pleuronichthys ritteri spotted turbot 36 49.34 Citharichthys sti

gmaeus speckled sanddab 36 46.26 larval fish

- damaged unidentified larval fishes 25 31.56 Engraulidae unid. anchovies 19 29.26 Hypsoblennius spp

. combtooth blennies 19 25.24 Xystreurys liolepis fantail sole 18 21.67 Symphurus atricauda California ton guefish 12 16.06 Genyonemus lineatus white croaker 14 15.85 larval fish fragment unidentified larval fishes 12 14.77 Pleuronichthys spp. turbots 7 10.59 Sphyraena argentea Pacific barracuda 9 10.59 Umbrina roncador yellowfin croaker 8 10.33 Cheilotre ma saturnum black croaker 6 8.10 Oxyjulis californica senorita 4 5.22 Engraulis mordax northern anchovy 3 4.99 Menticirrhus undulatus California corbina 2 4.83 Gobiidae unid. gobies 3 4.28 Chitonotus / Icelinus sculpins 3 4.02 Paralichthyidae unid. s and flounders 3 3.33 Icelinus quadriseriatus yellowchin sculpin 2 3.21 Ophidiidae unid. cusk

-eels 2 2.20 Pleuronectiformes unid. flatfishes 2 2.01 Roncador stearnsi spotfin croaker 1 1.78 Cottidae unid. sculpins 1 1.61 Odontopyxis trispinosa pygmy poacher 1 1.61 Peprilus simillimus Pacific butterfish 1 1.55 Typhlogobius californiensis blind goby 1 1.55 larval/post

-larval fish unid. larval fishes 1 1.43 Gibbonsia spp. clinid kelpfishes 1 1.13 Labrisomidae unid. labrisomid blennies 1 1.13 Citharichthys sordidus Pacific sanddab 1 1.07 Hypsypops rubicundus garibaldi 1 0.93 Total Fishes: 962 Target Invertebrates Pinnixa spp. (megalops) pea crabs megalops 255 381.26 Panulirus interruptus (phyllosome) California spiny lobster 201 256.37 (continued)

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -39 Survey: SMBEA14 Start Date: 7/12/2006 Stations: O1 -O3 (continued) Mean Concentration Taxon Common Name Count (#/1,000m3) Target Invertebrates (continued) Pugettia spp. (megalops) kelp crabs megalops 162 224.70 Cancer anthonyi (megalops) yellow crab megalops 134 188.01 Majidae unid. (megalops) spider crab megalops 81 115.40 Cancer antennarius (megalops) brown rock crab megalops 73 98.25 Lophopanopeus spp. (megalops) black

-clawed crab megalops 54 74.55 Brachyura unid. (megalops) unidentif ied crab megalops 10 13.97 Petrolisthes spp. (megalops) porcelain crab megalops 9 12.02 Grapsidae unid. (megalops) shore crab megalops 6 9.95 Diogenidae (megalops) left

-handed hermit crabs megalops 6 8.56 Paguridae unid. (megalops) hermit crab megalops 6 8.14 Pinnotheres spp. (megalops) pea crab megalops 6 7.62 Pachycheles spp. (megalops) porcelain crabs megalops 5 7.29 Loligo opalescens market squid 3 4.30 Porcellanidae unid. (megalops) porcelain crab megalops 2 3.51 Portunus xantusii (megalops) Xantus' swimming crab 2 2.57 Cancer spp. (megalops) cancer crabs megalops 1 1.43 Cancer gracilis (megalops) slender crab megalops 1 1.33 Total Target Invertebrates: 1,017

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -40 Survey: SMBEA14 Start Date: 7/12/2006 Stations: S1- S4 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes larvae, unidentified yolksac unidentified yolksac larvae 253 359.35 Sciaenidae unid. croakers 45 60.86 Paralichthys californicus California halibut 42 53.52 Paralabrax spp. sand bass 38 50.73 Hypsoble nnius spp . combtooth blennies 35 46.76 Haemulidae unid. grunts 26 34.92 Seriphus politus queenfish 20 25.82 larval fish fragment unidentified larval fishes 17 24.09 Citharichthys stigmaeus speckled sanddab 14 19.71 Umbrina roncador yellowfin croaker 1 3 18.49 Gobiidae unid. gobies 12 18.41 Symphurus atricauda California tonguefish 10 14.81 Menticirrhus undulatus California corbina 10 13.90 Pleuronichthys verticalis hornyhead turbot 10 12.91 Pleuronichthys spp. turbots 8 10.32 Cheilotrema saturnum black croaker 7 9.05 Pleuronichthys ritteri spotted turbot 6 7.03 larval fish

- damaged unidentified larval fishes 5 5.90 Genyonemus lineatus white croaker 4 5.45 Xystreurys liolepis fantail sole 4 4.57 Oxyjulis californica senorita 3 4.34 Semicossyphus pulcher California sheephead 2 2.87 Engraulidae unid. anchovies 2 2.28 Typhlogobius californiensis blind goby 1 1.61 Halichoeres semicinctus rock wrasse 1 1.50 Labrisomidae unid. labrisomid blennies 1 1.47 Gobiesox spp. clingfishes 1 1.39 Sphyrae na argentea Pacific barracuda 1 1.25 Engraulis mordax northern anchovy 1 1.04 Xenistius californiensis salema 1 1.04 Total Fishes: 593 Target Invertebrates Cancer anthonyi (megalops) yellow crab megalops 19 23.30 Pachycheles spp. (megalops) porcelain crabs megalops 14 19.10 Panulirus interruptus (phyllosome) California spiny lobster 11 16.23 Lophopanopeus spp. (megalops) black

-clawed crab megalops 10 14.24 Pugettia spp. (megalops) kelp crabs megalops 10 13.72 Porcellanidae unid. (megalops) porcelain crab megalops 4 5.83 Majidae unid. (megalops) spider crab megalops 4 5.48 Pinnixa spp. (megalops) pea crabs megalops 2 3.18 Brachyura unid. (megalops) unidentified crab megalops 2 2.99 Grapsidae unid. (megalops) shore crab megalops 1 1.61 Total Target Invertebrates: 77

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -41 Survey: SMBEA15 Start Date: 7/26/2006 Stations: E1 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Sciaenidae unid. croakers 46 109.13 Seriphus politus queenfish 15 36.74 larvae, unidentified yolksac un identified yolksac larvae 14 32.20 Haemulidae unid. grunts 13 30.34 Paralichthys californicus California halibut 12 27.12 Hypsoblennius spp

. combtooth blennies 10 22.42 Hypsypops rubicundus garibaldi 7 16.72 Xystreurys liolepis fantail sole 5 10.62 l arval fish

- damaged unidentified larval fishes 3 7.37 Cheilotrema saturnum black croaker 3 7.26 larval/post

-larval fish unid. larval fishes 3 6.80 larval fish fragment unidentified larval fishes 3 6.61 Pleuronichthys ritteri spotted turbot 3 6.35 Par alabrax spp. sand bass 2 5.03 Symphurus atricauda California tonguefish 2 4.79 Labrisomidae unid. labrisomid blennies 2 4.53 Pomacentridae unid. damselfishes 1 2.55 Paralichthyidae unid. sand flounders 1 2.52 Semicossyphus pulcher California sheephead 1 2.51 Oxyjulis californica senorita 1 2.27 Sardinops sagax Pacific sardine 1 2.08 Total Fishes: 148 Eggs fish eggs unid. unidentified fish eggs 1,749 8,486.37 Sciaen. / Paralich. / Labridae (eggs) fish eggs 357 1,723.87 Pleuronichthys spp. (eggs) turbot eggs 59 278.85 Citharichthys spp. (eggs) sanddab eggs 27 133.42 Sphyraena argentea (eggs) Pacific barracuda eggs 2 10.38 Total Eggs: 2,194 Target Invertebrates Lophopanopeus spp. (megalops) black

-clawed crab megalops 3 7.08 Pinnixa spp. (megalops) pea crabs megalops 1 2.27 Total Target Invertebrates: 4

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -42 Survey: SMBEA16 Start Date: 8/9/2006 Stations: E1 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes larvae, unidentified yolksac unidentified yolksac larvae 51 151.32 Sciaenidae unid. croakers 46 130.87 Paralabrax spp. sand bass 26 74.15 Seriphus politus queenfish 17 51.39 Haemulidae unid. grunts 16 48.87 larval/post

-larval fish unid. larval fishes 11 34.20 Halichoeres semicinctus rock wrasse 10 31.15 Sphyraena argentea Pacific barracuda 9 27.83 larval fish fragment unidentified larval fishes 9 25.89 Paralichthys californicus California halibut 8 25.36 Hypsoblennius spp

. combtooth blennies 8 24.47 Oxyjulis californica senorita 8 24.06 Ophidiidae unid. cusk

-eels 8 21.72 Cheilotrema saturnum black croaker 5 15.86 Symphurus atricauda California tonguefish 5 15.68 Pleuronichthys ritteri spotted turbot 5 14.97 Menticirrhus undulatus California corbina 5 13.86 Ophidion scrippsae basketweave cusk

- eel 4 12.80 Se micossyphus pulcher California sheephead 4 12.60 Pleuronichthys spp. turbots 3 9.00 Engraulis mordax northern anchovy 2 6.20 Genyonemus lineatus white croaker 2 6.00 Citharichthys stigmaeus speckled sanddab 2 5.77 Paralichthyidae unid. sand flounders 1 3.42 Gobiidae unid. gobies 1 3.20 Clupea pallasii Pacific herring 1 3.00 Labridae unid. wrasses 1 3.00 Sebastolobus altivelis longspine thornyhead 1 2.73 Total Fishes: 269 Eggs fish eggs unid. unidentified fish eggs 2,919 17,192.50 Sciaen. / Paralich. / Labridae (eggs) fish eggs 246 1,453.51 Pleuronichthys spp. (eggs) turbot eggs 96 555.64 Citharichthys spp. (eggs) sanddab eggs 30 183.78 Pleuronectidae unid. (eggs) righteye flounder eggs 10 57.44 Sphyraena argentea (eggs) Pacific barracuda eg gs 9 56.46 Total Eggs: 3,310 Target Invertebrates Majidae unid. (megalops) spider crab megalops 1 3.00 Porcellanidae unid. (megalops) porcelain crab megalops 1 2.91 Total Target Invertebrates: 2

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -43 Survey: SMBEA16 Start Date: 8/9/2006 Stations: M1- M3 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Hypsoblennius spp

. combtooth blennies 53 99.49 larvae, unidentified yolksac unidentified yolksac larvae 31 57.23 Paralichthys californicus California halibut 17 29.34 Sciaenidae unid. croakers 17 27.99 Engraulis mordax northern anchovy 14 25.12 Hypsoblennius jenkinsi mussel blenny 12 22.29 Paralabrax spp. sand bass 11 19.54 larval fish fragment unidentified larval fishes 8 18.03 Pleuronichthys ritteri spotted turbot 8 15.35 Citharichthys stigmaeus speckled sanddab 7 13.35 Oxyjulis californica senorita 5 9.90 Chromis punctipinnis blacksmith 6 8.73 Typhlogobius californiensis blind goby 4 7.54 Ophidiidae unid. cusk

-eels 3 5.66 Pleuronichthys spp. turbots 3 5.23 Haemulidae unid. grunts 3 5.21 Xystreurys liolepis fantail sole 3 4.78 Gobiidae unid. gobies 2 4.11 Engraulidae unid. anchovies 2 3.93 Sphyraena argentea Pacific barracuda 2 3.31 Symphurus atricauda California tonguefish 2 3.30 Genyonemus lineatus white croaker 2 2.95 Xenistius californiensis salema 1 2.28 Labridae unid. wrasses 1 2.27 Seriphus politus queenfish 1 2.27 Hypsypops rubicundus garibaldi 1 1.83 Rhinogobiops nicholsi blackeye goby 1 1.83 Sardinops sagax Pacific sardine 1 1.83 Icelinus spp. sculpins 1 1.65 Pleuronectidae unid. righteye flounders 1 1.65 Menticirrhus undulatus California corbina 1 1.56 Lepidogobius lepidus bay goby 1 1.47 Myctophidae unid. lanternfishes 1 1.47 Total Fishes: 226 Target Invertebrates Pugettia spp. (megalops) kelp crabs megalops 67 119.31 Pinnixa spp. (megalops) pea crabs megalops 29 53.66 Majidae unid. (megalops) spider crab megalops 12 21.33 Panulirus interruptus (phyllosome) California spiny lobster 5 8.16 Cancer antennarius (megalops) brown rock crab megalops 2 3.73 Brachyura unid. (megalops) unidentified crab megalops 2 3.39 Grapsidae unid. (megalops) shore crab megalops 2 3.39 Lophopanopeus spp. (megalops) black

-clawed crab megalops 1 2.28 (continued)

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -44 Survey: SMBEA16 Start Date: 8/9/2006 St ations: M1- M3 (continued) Mean Concentration Taxon Common Name Count (#/1,000m3) Target Invertebrates (continued) Portunus xantusii (megalops) Xantus' swimming crab 1 2.27 Cancer anthonyi (megalops) yellow crab megalops 1 2.16 Cancer gracilis (me galops) slender crab megalops 1 2.16 Diogenidae (megalops) left

-handed hermit crabs megalops 1 1.65 Total Target Invertebrates: 124

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -45 Survey: SMBEA16 Start Date: 8/9/2006 Stations: O1 -O3 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Hypsoblennius spp

. combtooth blennies 24 35.94 Engraulis mordax northern anchovy 14 21.15 larvae, unidentified yolksac unidentified yolksac larvae 11 14.86 Paralichthys californicus California halibut 7 10.23 Diaphus theta California headligh t fish 5 6.30 larval fish fragment unidentified larval fishes 3 4.26 Genyonemus lineatus white croaker 3 4.09 Pleuronichthys ritteri spotted turbot 3 4.08 Engraulidae unid. anchovies 3 3.89 Pleuronichthys verticalis hornyhead turbot 2 3.36 Lepidogobi

us lepidus bay goby 2 3.15 Pleuronichthys spp. turbots 2 3.09 Sciaenidae unid. croakers 2 2.92 Sardinops sagax Pacific sardine 2 2.90 Gobiidae unid. gobies 1 1.76 Oxyjulis californica senorita 1 1.60 Pleuronectidae unid. righteye flounders 1 1.60 Rhinogobiops nicholsi blackeye goby 1 1.47 Chromis punctipinnis blacksmith 1 1.46 Paralabrax clathratus kelp bass 1 1.46 Seriphus politus queenfish 1 1.46 Hypsypops rubicundus garibaldi 1 1.41 Ophidiidae unid. cusk

-eels 1 1.41 Citharichthys sordidus Pacific sanddab 1 1.15 Paralabrax spp. sand bass 1 1.15 Total Fishes: 94 Target Invertebrates Pugettia spp. (megalops) kelp crabs megalops 100 154.92 Pinnixa spp. (megalops) pea crabs megalops 73 108.20 Majidae unid. (megalops) spider crab megalops 9 14.70 Grapsidae unid. (megalops) shore crab megalops 9 13.19 Lophopanopeus spp. (megalops) black

-clawed crab megalops 6 9.13 Cancer anthonyi (megalops) yellow crab megalops 4 5.70 Panulirus interruptus (phyllosome) California spiny lobster 2 3.07 Cancer antennarius (megalops) brown rock crab megalops 2 2.83 Brachyura unid. (megalops) unidentified crab megalops 1 1.54 Cancer gracilis (megalops) slender crab megalops 1 1.52 Cancer oregonensis (megalops) pygmy rock crab 1 1.52 Paguridae unid. (megalops) hermit crab megalops 1 1.46 Pinnotheres spp. (megalops) pea crab megalops 1 1.46 Portunus xantusii (megalops) Xantus' swimming crab 1 1.41 Loligo opalescens market squid 1 1.15 Total Target Invertebrates: 212

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -46 Survey: SMBEA16 Start Date: 8/9/2006 Stations: S1- S4 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes larvae, unidentified yolksac unidentified yolksac larvae 247 376.32 Paralabrax spp. sand bass 98 151.46 Sciaenidae unid. croakers 70 105.62 Hypsoblennius spp

. combtooth blennies 34 52.22 Paralichthys californicus California halibut 22 35.35 Sphyraena argentea Pacific barracuda 21 32.56 Ophidiidae unid. cusk

-eels 19 29.80 Hypsypops rubicundus garibaldi 19 28.93 Symphurus atricauda California tonguefish 15 23.98 Citharichthys stigmaeus speckled sanddab 13 20.56 Oxyjulis californica senorita 14 20.54 Haemulidae unid. grunts 12 19.13 Menticirrhus undulatus California corbina 10 16.01 Halichoeres semicinctus rock wrasse 9 14.62 larval/post

-larval fish unid. lar val fishes 8 13.63 Xenistius californiensis salema 9 12.91 Engraulis mordax northern anchovy 7 10.75 larval fish fragment unidentified larval fishes 7 10.36 Semicossyphus pulcher California sheephead 5 8.06 Labridae unid. wrasses 5 7.91 Seriphus politus queenfish 4 6.44 Pleuronichthys ritteri spotted turbot 4 6.24 Cheilotrema saturnum black croaker 4 5.41 Pleuronichthys spp. turbots 3 4.96 Paralichthyidae unid. sand flounders 2 3.50 Ophidion scrippsae basketweave cusk

- eel 2 3.24 Xystreurys liole

pis fantail sole 2 3.21 Gobiidae unid. gobies 2 3.03 Pleuronectidae unid. righteye flounders 2 2.94 Citharichthys spp. sanddabs 1 1.75 larval fish

- damaged unidentified larval fishes 1 1.75 Pleuronichthys verticalis hornyhead turbot 1 1.75 Sardinops sagax Pacific sardine 1 1.75 Chilara taylori spotted cusk

-eel 1 1.71 Engraulidae unid. anchovies 1 1.48 Girella nigricans opaleye 1 1.48 Triphoturus mexicanus Mexican lampfish 1 1.37 Total Fishes: 677 Target Invertebrates Pugettia spp. (megalops) kelp crabs megalops 13 20.73 Panulirus interruptus (phyllosome) California spiny lobster 6 9.97 Majidae unid. (megalops) spider crab megalops 6 9.50 Diogenidae (megalops) left

-handed hermit crabs megalops 1 1.48 Total Target Invertebrates: 26

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -47 Sur vey: SMBEA17 Start Date: 8/23/2006 Stations: E1 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes larvae, unidentified yolksac unidentified yolksac larvae 897 2,422.21 Sciaenidae unid. croakers 383 1,083.99 Paralabrax spp. sand bass 382 1,053.07 larval fish fragment unidentified larval fishes 161 429.97 Seriphus politus queenfish 120 346.21 Sphyraena argentea Pacific barracuda 95 262.59 Paralichthys californicus California halibut 84 240.16 larval/post

-larval fish unid. larval fishes 71 194.60 larval fish

- damaged unidentified larval fishes 59 162.07 Menticirrhus undulatus California corbina 25 74.01 Citharichthys stigmaeus speckled sanddab 25 69.75 Ophidiidae unid. cusk

-eels 27 69.54 Hypsoblennius spp

. combtooth blennies 15 43.49 Haemulidae unid. grunts 12 32.32 Xenistius californiensis salema 11 29.91 Pleuronichthys guttulatus diamond turbot 10 29.57 Semicossyphus pulcher California sheephead 9 25.28 Pleuronichthys ritteri spotted turbot 8 22.85 Pleuronectidae unid. righteye flounders 9 22.82 Oxyjulis californica senorita 6 16.66 Xystreurys liolepis fantail sole 4 11.66 Symphurus atricauda California tonguefish 4 10.91 Anisotremus davidsonii sargo 3 9.12 Pleuronichthys spp. turbots 3 8.53 Kyphosidae unid. sea chubs 3 8.04 Triphoturus mexicanus Mexican lampfish 3 8.04 Chilara taylori spotted cusk

-eel 3 7.56 Genyonemus lineatus white croaker 2 5.95 Engraulis mordax northern anchovy 2 5.93 Hippoglossina stomata bigmouth sole 2 5.27 Gillichthys mirabilis longjaw m udsucker 2 4.94 Icelinus spp. sculpins 1 3.13 Gobiidae unid. gobies 1 2.87 Myctophidae unid. lanternfishes 1 2.80 Pomacentridae unid. damselfishes 1 2.80 Chromis punctipinnis blacksmith 1 2.60 Sebastes spp. rockfishes 1 2.47 Total Fishes: 2,446 Eg gs fish eggs unid. unidentified fish eggs 402 2,229.68 Sciaen. / Paralich. / Labridae (eggs) fish eggs 266 1,533.39 Citharichthys spp. (eggs) sanddab eggs 26 147.54 Pleuronichthys spp. (eggs) turbot eggs 21 120.30 Sphyraena argentea (eggs) Pacific bar racuda eggs 2 11.30 (continued)

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -48 Survey: SMBEA17 Start Date: 8/23/2006 Stations: E1 (continued) Mean Concentration Taxon Common Name Count (#/1,000m3) Eggs (continued) Paralichthyidae unid. (eggs) sand flounder eggs 1 5.53 Total Eggs: 718 Ta rget Invertebrates Pinnixa spp. (megalops) pea crabs megalops 2 6.26 Total Target Invertebrates: 2

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -49 Survey: SMBEA18 Start Date: 9/6/2006 Stations: E1 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes larvae, unidentified yolksac unidentified yolksac larvae 273 670.89 Sciaenidae unid. croakers 145 366.44 Paralabrax spp. sand bass 142 348.51 Sphyraena argentea Pacific barracuda 116 283.31 Oxyjulis californica senorita 53 126.78 Citharichthys stigmaeus speckled sanddab 50 123 .26 Pleuronichthys ritteri spotted turbot 43 110.33 larval fish fragment unidentified larval fishes 37 90.23 Ophidion scrippsae basketweave cusk

- eel 37 88.75 larval/post

-larval fish unid. larval fishes 36 86.65 Symphurus atricauda California tonguefish 31 74.26 Anisotremus davidsonii sargo 27 62.72 Xenistius californiensis salema 26 61.46 Menticirrhus undulatus California corbina 22 53.07 Halichoeres semicinctus rock wrasse 19 44.56 Ophidiidae unid. cusk

-eels 15 37.51 Paralichthys californicus California halibut 14 33.65 Pleuronichthys spp. turbots 10 25.04 Hypsoblennius spp

. combtooth blennies 10 24.88 Haemulidae unid. grunts 10 23.49 Sardinops sagax Pacific sardine 6 14.69 Seriphus politus queenfish 5 12.51 Pleuronichthys guttulatus diamon d turbot 5 12.18 Hippoglossina stomata bigmouth sole 4 10.49 Genyonemus lineatus white croaker 3 7.89 Semicossyphus pulcher California sheephead 3 6.95 Pleuronichthys verticalis hornyhead turbot 2 5.01 Chilara taylori spotted cusk

-eel 2 4.77 larval f ish

- damaged unidentified larval fishes 1 2.80 Roncador stearnsi spotfin croaker 1 2.59 Citharichthys sordidus Pacific sanddab 1 2.57 Pleuronectidae unid. righteye flounders 1 2.57 Etrumeus teres round herring 1 2.42 Sebastolobus spp. thornyheads 1 2.42 Girella nigricans opaleye 1 2.34 Paralabrax clathratus kelp bass 1 2.34 Xystreurys liolepis fantail sole 1 2.34 Total Fishes: 1,155 Eggs fish eggs unid. unidentified fish eggs 1,280 6,478.77 Sciaen. / Paralich. / Labridae (eggs) fish eggs 496 2,559.56 Pleuronichthys spp. (eggs) turbot eggs 155 800.77 Citharichthys spp. (eggs) sanddab eggs 69 341.09 Sphyraena argentea (eggs) Pacific barracuda eggs 12 59.36 (continued)

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -50 Survey: SMBEA18 Start Date: 9/6/2006 Stations: E1 (continued) Mean Concentration Taxon Common Name Count (#/1,000m3) Eggs (continued) Paralichthyidae unid. (eggs) sand flounder eggs 3 13.48 Total Eggs: 2,015 Target Invertebrates Pugettia spp. (megalops) kelp crabs megalops 4 9.79 Grapsidae unid. (megalops) shore crab megalops 1 2.51 Majidae unid. (megalops) spider crab megalops 1 2.42 Petrolisthes spp. (megalops) porcelain crab megalops 1 2.34 Total Target Invertebrates: 7

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -51 Survey: SMBEA19 Start Date: 9/20/2006 Stations: E1 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes larvae, unidentified yolksac unidentified yolksac larvae 35 97.64 larval fish fragment unidentified larval fishes 12 31.66 Paralabrax spp. sand bass 10 27.69 Paralichthys californicus California halibut 9 25.76 Hypsoblennius spp

. combtooth blennies 7 19.41 Xystreurys liolepis fantail sole 3 8.09 Ophidiidae unid. cusk

-eels 2 5.04 Citharichthys stigmaeus speckled sanddab 2 4.81 Engraulis mordax northern anchovy 1 2.80 Gobiidae unid. gobies 1 2.72 Hippoglossina stomata bigmouth sole 1 2.72 Paralabrax clathratus kelp bass 1 2.72 Sciaenidae unid. croakers 1 2.72 Pleuronectidae unid. righteye flounders 1 2.32 Pleuronichthys ritteri spotted turbot 1 2.32 Total Fishes: 87 Eggs fish eggs unid. unidentified fi sh eggs 1,131 6,217.89 Sciaen. / Paralich. / Labridae (eggs) fish eggs 318 1,809.06 Pleuronichthys spp. (eggs) turbot eggs 78 436.19 Citharichthys spp. (eggs) sanddab eggs 52 292.68 Paralichthyidae unid. (eggs) sand flounder eggs 8 43.41 Sphyraena argentea (eggs) Pacific barracuda eggs 1 5.28 Total Eggs: 1,588 Target Invertebrates Grapsidae unid. (megalops) shore crab megalops 3 7.71 Total Target Invertebrates: 3

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -52 Survey: SMBEA19 Start Date: 9/20/2006 Stations: M1- M3 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Paralabrax spp. sand bass 211 388.23 larvae, unidentified yolksac unidentified yolksac larvae 81 152.37 Paralichthys californicus California halibut 30 52.84 Citharichthys stigmaeus speckled sanddab 26 47. 12 Seriphus politus queenfish 25 46.54 Haemulidae unid. grunts 18 34.68 Genyonemus lineatus white croaker 17 30.29 Engraulidae unid. anchovies 15 27.87 Sciaenidae unid. croakers 11 19.32 Pleuronichthys ritteri spotted turbot 10 18.86 Oxyjulis californica senorita 9 16.68 larval fish fragment unidentified larval fishes 9 15.28 Symphurus atricauda California tonguefish 7 13.64 Xystreurys liolepis fantail sole 6 11.31 Hypsoblennius spp

. combtooth blennies 6 10.38 Citharichthys sordidus Pacific sand dab 5 9.05 Semicossyphus pulcher California sheephead 5 9.03 larval fish

- damaged unidentified larval fishes 4 6.76 Pleuronichthys verticalis hornyhead turbot 3 5.44 Halichoeres semicinctus rock wrasse 3 5.35 Sphyraena argentea Pacific barracuda 2 4.53 Ophidiidae unid. cusk

-eels 2 3.63 Chromis punctipinnis blacksmith 1 2.23 Gobiidae unid. gobies 1 1.81 Pleuronichthys spp. turbots 1 1.81 Scorpaena guttata California scorpionfish 1 1.81 Pleuronectiformes unid. flatfishes 1 1.78 Labridae unid. wra sses 1 1.73 Paralichthyidae unid. sand flounders 1 1.73 Pleuronichthys guttulatus diamond turbot 1 1.63 Engraulis mordax northern anchovy 1 1.49 Total Fishes: 514 Target Invertebrates Pugettia spp. (megalops) kelp crabs megalops 2 3.80 Pinnixa spp. (megalops) pea crabs megalops 2 3.63 Majidae unid. (megalops) spider crab megalops 1 2.30 Brachyura unid. (megalops) unidentified crab megalops 1 1.78 Cancer anthonyi (megalops) yellow crab megalops 1 1.73 Loligo opalescens market squid 1 1.63 Total Target Invertebrates: 8

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -53 Survey: SMBEA19 Start Date: 9/20/2006 Stations: O1 -O3 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Paralabrax spp. sand bass 91 150.18 Genyonemus lineatus white croaker 53 92.99 larvae, unidentified yolksac unidentified yolksac larvae 23 38.59 Engraulidae unid. anchovies 20 33.09 Paralichthys californicus California halibut 18 30.92 Seriphus politus queenfish 10 16.80 Gobiidae unid. gobies 9 16.24 larval fish

- damaged unidentified larval fishes 7 12.30 Halichoeres semicinctus rock wrasse 7 12.08 Citharichthys stigmaeus speckled sanddab 7 11.52 Chromis punctipinnis blacksmith 6 10.00 Oxyjulis californica senorita 6 9.26 Pleuronichthys ritteri spotted turbot 5 7.91 Symphurus atricauda Califor nia tonguefish 5 7.46 Hypsoblennius spp

. combtooth blennies 4 6.45 Pleuronichthys guttulatus diamond turbot 4 6.45 Citharichthys sordidus Pacific sanddab 3 5.20 Haemulidae unid. grunts 3 4.96 Triphoturus mexicanus Mexican lampfish 3 4.66 Peprilus simillimus Pacific butterfish 3 4.64 Ophidiidae unid. cusk

-eels 3 4.61 larval fish fragment unidentified larval fishes 3 4.60 Pleuronichthys verticalis hornyhead turbot 2 4.06 Paralabrax maculatofasciatus spotted sand bass 2 3.61 Sciaenidae unid. croakers 2 3.42 Hypsoblennius jenkinsi mussel blenny 2 3.35 Semicossyphus pulcher California sheephead 2 3.12 Hippoglossina stomata bigmouth sole 1 2.03 Citharichthys spp. sanddabs 1 1.80 Chitonotus / Icelinus sculpins 1 1.78 Labridae unid. wrasses 1 1.78 Engraulis mordax northern anchovy 1 1.67 Pleuronichthys spp. turbots 1 1.62 Diaphus theta California headlight fish 1 1.51 Pleuronectidae unid

. righteye flounders 1 1.46 Rhinogobiops nicholsi blackeye goby 1 1.46 Pleuronectiformes unid. flatfishes 1 1 .40 Total Fishes: 313 Target Invertebrates Majidae unid. (megalops) spider crab megalops 5 8.37 Pugettia spp. (megalops) kelp crabs megalops 5 8.02 Pinnixa spp. (megalops) pea crabs megalops 4 6.48 Lophopanopeus spp. (megalops) black

-clawed crab megalops 2 3.45 (continued)

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -54 Survey: SMBEA19 Start Date: 9/20/2006 Stations: O1 -O3 (continued) Mean Concentration Taxon Common Name Count (#/1,000m3) Target Invertebrates (continued) Cancer anthonyi (megalops) yellow crab megalops 2 3.24 Panulir us interruptus (phyllosome) California spiny lobster 2 3.02 Loligo opalescens market squid 1 1.78 Cancer antennarius (megalops) brown rock crab megalops 1 1.67 Emerita analoga (megalops) mole crabs megalops 1 1.62 Brachyura unid. (megalops) unidentifi ed crab megalops 1 1.51 Grapsidae unid. (megalops) shore crab megalops 1 1.51 Total Target Invertebrates: 25

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -55 Survey: SMBEA19 Start Date: 9/20/2006 Stations: S1- S4 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Paralabrax spp. sand bass 124 166.10 larvae, unidentified yolksac unidentified yolksac larvae 81 105.94 Paralichthys californicus California halibut 11 14.89 Hypsoblennius spp

. combtooth blennies 11 14.09 Symphurus atricauda California tonguefish 10 13.46 Cithari chthys stigmaeus speckled sanddab 8 11.30 Haemulidae unid. grunts 8 9.44 Oxyjulis californica senorita 7 9.23 Engraulidae unid. anchovies 6 8.09 Pleuronichthys guttulatus diamond turbot 6 7.50 larval fish

- damaged unidentified larval fishes 5 7.04 Seriphus politus queenfish 4 5.52 Sphyraena argentea Pacific barracuda 3 4.08 larval fish fragment unidentified larval fishes 3 3.89 Sciaenidae unid. croakers 3 3.88 Halichoeres semicinctus rock wrasse 2 2.82 Pleuronichthys ritteri spotted turbot 2 2.8 1 Ophidiidae unid. cusk

-eels 2 2.74 Citharichthys sordidus Pacific sanddab 2 2.70 Labrisomidae unid. labrisomid blennies 2 2.64 Genyonemus lineatus white croaker 2 2.52 Pleuronectidae unid. righteye flounders 1 1.58 Chilara taylori spotted cusk

-eel 1 1.44 Paralichthyidae unid. sand flounders 1 1.44 Gobiidae unid. gobies 1 1.30 Platichthys stellatus starry flounder 1 1.30 Pleuronichthys spp. turbots 1 1.29 Xystreurys liolepis fantail sole 1 1.29 Pleuronichthys verticalis hornyhead turbot 1 1.24 Labridae unid. wrasses 1 1.03 Total Fishes: 311 Target Invertebrates Pugettia spp. (megalops) kelp crabs megalops 2 2.74 Panulirus interruptus (phyllosome) California spiny lobster 1 1.41 Cancer antennarius (megalops) brown rock crab megalops 1 1.30 Grapsidae unid. (megalops) shore crab megalops 1 1.21 Total Target Invertebrates: 5

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -56 Survey: SMBEA20 Start Date: 10/4/2006 Stations: E1 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Hypsoblennius spp

. combtooth blennies 11 27 .26 Pleuronichthys guttulatus diamond turbot 4 10.74 Sciaenidae unid. croakers 4 10.74 Ophidiidae unid. cusk

-eels 3 6.67 Paralichthys californicus California halibut 3 6.67 Paralabrax spp. sand bass 3 6.37 Genyonemus lineatus white croaker 2 4.44 Gobiidae unid. gobies 2 4.21 larval fish fragment unidentified larval fishes 2 4.16 Labrisomidae unid. labrisomid blennies 1 2.86 Engraulis mordax northern anchovy 1 2.77 Hippoglossina stomata bigmouth sole 1 2.51 Pleuronectidae unid. righteye flounders 1 2.24 Pleuronectiformes unid. flatfishes 1 2.24 larval/post

-larval fish unid. larval fishes 1 2.23 Pleuronichthys spp. turbots 1 2.23 Xystreurys liolepis fantail sole 1 2.23 larvae, unidentified yolksac unidentified yolksac larvae 1 1.93 larval fish

- damaged unidentified larval fishes 1 1.93 Pleuronichthys ritteri spotted turbot 1 1.93 Total Fishes: 45 Eggs fish eggs unid. unidentified fish eggs 706 3,266.80 Sciaen. / Paralich. / Labridae (eggs) fish eggs 156 653.96 Pleuronichthys spp. (eggs) turbot eggs 70 349.99 Paralichthyidae unid. (eggs) sand flounder eggs 61 316.21 Citharichthys spp. (eggs) sanddab eggs 14 74.18 Sciaenidae unid. (eggs) croaker eggs 4 21.17 Labridae unid. (eggs) wrasse eggs 1 6.09 Pleuronectes guttulatus (eggs) diam ond turbot eggs 1 3.61

Total Eggs: 1,013 Target Invertebrates No Invertebrates

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -57 Survey: SMBEA21 Start Date: 10/18/2006 Stations: E1 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Hypsoblennius spp. combtooth blennies 9 22.96 Pleuronichthys guttulatus diamond turbot 8 21.29 Engraulis mordax northern anchovy 7 17.58 larvae, unidentified yolksac unidentified yolksac larvae 6 14.79 Gobiidae unid. gobies 3 8.35 larval fish

- damaged unidentified larval fishes 2 5.51 Paralichth

ys californicus California halibut 2 5.17 Citharichthys stigmaeus speckled sanddab 2 4.95 Paralabrax spp. sand bass 2 4.68 Sciaenidae unid. croakers 1 2.41 Semicossyphus pulcher California sheephead 1 2.41 Citharichthys spp. sanddabs 1 2.27 larval fish fragment unidentified larval fishes 1 2.27 Total Fishes: 45 Eggs fish eggs unid. unidentified fish eggs 1,148 6,039.55 Sciaen. / Paralich. / Labridae (eggs) fish eggs 359 1,825.84 Citharichthys spp. (eggs) sanddab eggs 84 472.98 Pleuronichthys spp. (eggs) turbot eggs 73 358.41 Engraulidae unid. (eggs) anchovy eggs 2 9.13 Pleuronectidae unid. (eggs) righteye flounder eggs 1 4.57 Total Eggs: 1,667 Target Invertebrates Grapsidae unid. (megalops) shore crab megalops 2 4.68 Total Target Invertebrates: 2

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -58 Survey: SMBEA21 Start Date: 10/18/2006 Stations: M1- M3 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Genyonemus lineatus white croaker 96 149.22 Paralichthys californicus California halibut 51 79.26 Engraulis mor

dax northern anchovy 41 65.98 larvae, unidentified yolksac unidentified yolksac larvae 28 44.80 Citharichthys stigmaeus speckled sanddab 25 42.62 Pleuronichthys guttulatus diamond turbot 20 33.33 Xystreurys liolepis fantail sole 17 24.90 Hypsoblennius spp

. combtooth blennies 15 23.66 Pleuronichthys ritteri spotted turbot 13 21.69 Paralabrax spp. sand bass 11 19.07 Pleuronichthys verticalis hornyhead turbot 8 13.92 Paralichthyidae unid. sand flounders 8 13.70 Gobiidae unid. gobies 6 10.83 larval f ish fragment unidentified larval fishes 4 5.96 Ophidiidae unid. cusk

-eels 3 5.22 Pleuronichthys spp. turbots 3 4.71 larval fish

- damaged unidentified larval fishes 3 4.33 Semicossyphus pulcher California sheephead 2 3.40 Hippoglossina stomata bigmout h sole 2 3.00 Triphoturus mexicanus Mexican lampfish 1 2.03 Chaenopsidae unid. tube blennies 1 1.85 Citharichthys sordidus Pacific sanddab 1 1.82 Pleuronectiformes unid. flatfishes 1 1.62 Engraulidae unid. anchovies 1 1.54 Total Fishes: 361 Target Invertebrates Pugettia spp. (megalops) kelp crabs megalops 4 6.67 Lophopanopeus spp. (megalops) black

-clawed crab megalops 2 3.68 Brachyura unid. (megalops) unidentified crab megalops 1 1.85 Grapsidae unid. (megalops) shore crab megalops 1 1.82 Loligo opalescens market squid 1 1.44 Pinnixa spp. (megalops) pea crabs megalops 1 1.24 Total Target Invertebrates: 10

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -59 Survey: SMBEA21 Start Date: 10/18/2006 Stations: O1 -O3 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Genyonemus lineatus white croaker 53 80.71 Engraulis mordax northern anchovy 26 40.29 Paralichthys californicus California halibut 25 37.22 Pleuronichthys ritteri spotted turbot 17 27.18 Hypsoblennius spp

. combtooth blennies 10 14.78 Citharichthys stigmaeus speckled sanddab 7 11.09 Paralabrax spp. sand bass 6 8.84 Pleuronichthys verticalis hornyhead turbot 5 7.67 Citharichthys sordidus Pacific sanddab 4 6.35 Xystreurys liolepis fantail sole 4 6.01 Pleuronichthys spp. turbots 3 5.20 larvae, unidentified yol

ksac unidentified yolksac larvae 3 4.97 Gobiidae unid. gobies 3 4.58 larval fish fragment unidentified larval fishes 3 4.37 Engraulidae unid. anchovies 2 3.07 Ophidiidae unid. cusk

-eels 2 2.95 Hippoglossina stomata bigmouth sole 2 2.90 Xenistius cali

forniensis salema 1 2.07 Sciaenidae unid. croakers 1 1.68 Menticirrhus undulatus California corbina 1 1.50 Chromis punctipinnis blacksmith 1 1.45 Cyclothone signata showy bristlemouth 1 1.45 Pleuronectidae unid. righteye flounders 1 1.39 Triphoturus mexicanus Mexican lampfish 1 1.39 Total Fishes: 182 Target Invertebrates Pugettia spp. (megalops) kelp crabs megalops 5 7.78 Loligo opalescens market squid 4 6.86 Majidae unid. (megalops) spider crab megalops 2 2.86 Grapsidae unid. (megalops) shore crab megalops 2 2.83 Brachyura unid. (megalops) unidentified crab megalops 1 1.79 Cancer anthonyi (megalops) yellow crab megalops 1 1.50 Total Target Invertebrates: 15

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -60 Survey: SMBEA21 Start Date: 10/18/2006 Stations: S1- S4 Mean Concentration Ta xon Common Name Count (#/1,000m3) Fishes Citharichthys stigmaeus speckled sanddab 52 58.55 Hypsoblennius spp

. combtooth blennies 29 33.91 larvae, unidentified yolksac unidentified yolksac larvae 26 30.56 Engraulis mordax northern anchovy 23 26.78 Pleuronichthys guttulatus diamond turbot 23 25.90 Paralabrax spp. sand bass 18 21.01 Genyonemus lineatus white croaker 18 20.28 Gobiidae unid. gobies 15 18.72 Paralichthys californicus California halibut 8 8.99 Pleuronichthys ritteri spotted turbot 8 8.91 larval fish fragment unidentified larval fishes 6 6.73 Sciaenidae unid. croakers 3 3.51 Pleuronichthys verticalis hornyhead turbot 2 2.26 Pleuronectidae unid. righteye flounders 1 1.30 Pleuronichthys spp. turbots 1 1.27 Atherinopsidae unid. silversides 1 1.20 Hippoglossina stomata bigmouth sole 1 1.15 Xystreurys liolepis fantail sole 1 1.13 Diaphus theta California headlight fish 1 1.10 Engraulidae unid. anchovies 1 1.10 larval fish

- damaged unidentified larval fishes 1 1.10 Paralichthyida

e unid. sand flounders 1 1.10 Total Fishes: 240 Target Invertebrates Grapsidae unid. (megalops) shore crab megalops 4 5.04 Panulirus interruptus (phyllosome) California spiny lobster 1 1.13 Total Target Invertebrates: 5

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -61 Survey: SMBEA22 Start Date: 11/1/2006 Stations: E1 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Genyonemus lineatus white croaker 19 51.56 Gobiidae unid. gobies 13 34.27 Engraulis mordax northern anchovy 7 19.01 Pleuronichthys guttulatus diamond turbo t 7 18.68 larvae, unidentified yolksac unidentified yolksac larvae 2 4.96 Hypsoblennius spp

. combtooth blennies 2 4.92 larval fish

- damaged unidentified larval fishes 1 2.65 Syngnathus spp. pipefishes 1 2.65 Paralichthys californicus California halibut 1 2.48 Pleuronectidae unid. righteye flounders 1 2.48 Total Fishes: 54 Eggs fish eggs unid. unidentified fish eggs 884 4,719.38 Paralichthyidae unid. (eggs) sand flounder eggs 122 648.36 Pleuronichthys spp. (eggs) turbot eggs 53 274.28 Sciaen. / Paralich. / Labridae (eggs) fish eggs 42 211.60 Sciaenidae unid. (eggs) croaker eggs 4 20.54 Citharichthys spp. (eggs) sanddab eggs 1 4.27 Total Eggs: 1,106 Target Invertebrates Lophopanopeus spp. (megalops) black

-clawed crab megalops 1 2.73 Majida e unid. (megalops) spider crab megalops 1 2.73 Pinnixa spp. (megalops) pea crabs megalops 1 2.65 Brachyura unid. (megalops) unidentified crab megalops 1 2.46 Total Target Invertebrates: 4

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -62 Survey: SMBEA23 Start Date: 11/15/2006 Stations: E1 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Gobiidae unid. gobies 63 183.27 Pleuronichthys guttulatus diamond turbot 9 25.58 Engraulis mordax northern anchovy 2 5.65 larvae, unidentified yolksac unidentified yolksac larvae 1 3.14 Gibbonsia spp. clinid kelpfishes 1 3.00 Hypsoblennius spp

. combtooth blennies 1 2.91 Genyonemus lineatus white croaker 1 2.89 larval fish

- damaged unidentified larval fishes 1 2.89 Syngnathidae unid. pipefishes 1 2.55 Total Fishes: 80 Eggs fish eg gs unid. unidentified fish eggs 476 2,716.03 Paralichthyidae unid. (eggs) sand flounder eggs 98 553.51 Citharichthys spp. (eggs) sanddab eggs 14 88.93 Pleuronichthys spp. (eggs) turbot eggs 12 70.66 Total Eggs: 600 Target Invertebrates Grapsidae uni

d. (megalops) shore crab megalops 1 2.89 Total Target Invertebrates: 1

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -63 Survey: SMBEA23 Start Date: 11/15/2006 Stations: M1- M3 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Genyonemus lineatus white croaker 122 220.90 larval fish fragment unidentified larval fishes 13 23.26 Sciaenidae unid. croakers 9 17.33 Engraulis mordax northern anchovy 8 15.39 Citharichthys stigmaeus speckled sanddab 8 14.77 Engraulidae unid. anchovies 8 14.28 Hypsoblennius spp

. combtooth blennies 7 12.59 larvae, unidentified yolksac unidentified yolksac larvae 6 11.06 Paralichthys californicus California halibut 6 10.84 Chromis punctipinnis blacksmith 5 9.46 Pleuronichthys guttulatus diamond turbot 4 7.32 Pleuronichthys spp. turbots 3 5.47 Gobiidae unid. gobies 3 5.34 Gillichthys mirabilis longjaw mudsucker 2 3.54 Xystreurys liolepis fantail sole 2 3.50 larval fish

- damaged unidentified larval fishes 1 2.02 Citharichthys spp. sanddabs 1 1.93 Pleuronectiformes unid. flatfishes 1 1.92 Citharichthys sordidus Pacific sanddab 1 1.89 Semicossyphus pulcher California sheephead 1 1.83 Nannobrachium spp. lanternfishes 1 1.78 larval/post

-larval fish unid. larval fishes 1 1.75 Ophidiidae unid. cusk

-eels 1 1.75 Total Fishes: 214 Target Inver

tebrates Brachyura unid. (megalops) unidentified crab megalops 1 1.89 Cancer anthonyi (megalops) yellow crab megalops 1 1.89 Majidae unid. (megalops) spider crab megalops 1 1.65 Total Target Invertebrates: 3

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -64 Survey: SMBEA23 Start Date: 11/15/2006 Stations: O1 -O3 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Genyonemus lineatus white croaker 301 474.02 Engraulis mordax northern anchovy 15 26.27 larval fish fragment unidentified larval fishes 17 25.60 Sciaenidae unid. croa kers 14 24.47 Engraulidae unid. anchovies 14 20.93 larvae, unidentified yolksac unidentified yolksac larvae 11 16.47 Ophidiidae unid. cusk

-eels 8 13.52 Paralichthys californicus California halibut 8 13.44 Chromis punctipinnis blacksmith 8 13.10 Pleur onichthys spp. turbots 8 13.10 Hypsoblennius spp

. combtooth blennies 3 4.94 Pleuronectiformes unid. flatfishes 3 4.73 Lythrypnus zebra zebra goby 2 3.43 Pleuronectidae unid. righteye flounders 2 3.38 Lepidogobius lepidus bay goby 2 3.21 Girella nigri

cans opaleye 2 3.16 Citharichthys sordidus Pacific sanddab 2 2.93 Pomacentridae unid. damselfishes 1 2.06 Sebastes spp. rockfishes 1 2.06 Stenobrachius leucopsarus northern lampfish 1 1.82 Citharichthys spp. sanddabs 1 1.80 larval/post

-larval fish un

id. larval fishes 1 1.60 Zaniolepis frenata shortspine combfish 1 1.51 Myctophidae unid. lanternfishes 1 1.47 Argentina sialis Pacific argentine 1 1.37 Icelinus quadriseriatus yellowchin sculpin 1 1.26 Total Fishes: 429 Target Invertebrates Pugetti a spp. (megalops) kelp crabs megalops 3 5.11 Cancer antennarius (megalops) brown rock crab megalops 1 1.82 Majidae unid. (megalops) spider crab megalops 1 1.82 Total Target Invertebrates: 5

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -65 Survey: SMBEA23 Start Date: 11/15/2006 Stations: S1- S4 M ean Concentration Taxon Common Name Count (#/1,000m3) Fishes Pleuronichthys guttulatus diamond turbot 30 39.65 Genyonemus lineatus white croaker 26 34.58 Citharichthys stigmaeus speckled sanddab 13 17.03 Gobiidae unid. gobies 9 11.60 larvae, unidentified yolksac unidentified yolksac larvae 6 8.01 Engraulis mordax northern anchovy 5 6.95 Hypsoblennius spp

. combtooth blennies 5 6.57 larval fish fragment unidentified larval fishes 5 6.49 Pleuronectidae unid. righteye flounders 4 5.28 Labridae u

nid. wrasses 3 4.24 Paralichthys californicus California halibut 3 4.05 Girella nigricans opaleye 2 2.77 Pleuronichthys ritteri spotted turbot 2 2.60 Sciaenidae unid. croakers 1 1.38 Chilara taylori spotted cusk

-eel 1 1.31 Chromis punctipinnis blacksmith 1 1.31 Engraulidae unid. anchovies 1 1.31 larval fish

- damaged unidentified larval fishes 1 1.31 Sebastes spp. rockfishes 1 1.28 Pleuronectes spp. righteye flounders 1 1.22 Total Fishes: 120 Target Invertebrates Pugettia spp. (megalops) kelp crabs megalops 4 5.12 Cancer anthonyi (megalops) yellow crab megalops 3 3.96 Majidae unid. (megalops) spider crab megalops 1 1.46 Total Target Invertebrates: 8

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -66 Survey: SMBEA24 Start Date: 11/27/2006 Stations: E1 Mean Concentration Taxon Comm on Name Count (#/1,000m3) Fishes Pleuronichthys guttulatus diamond turbot 4 45.44 Citharichthys stigmaeus speckled sanddab 1 12.66 Hypsoblennius spp

. combtooth blennies 1 12.66 Gobiidae unid. gobies 1 10.06 Paralichthys californicus California halibut 1 10.06 Pleuronichthys ritteri spotted turbot 1 10.06 Ruscarius meanyi Puget Sound sculpin 1 10.06 Total Fishes: 10 Eggs Citharichthys spp. (eggs) sanddab eggs 41 904.39 Paralichthyidae unid. (eggs) sand flounder eggs 35 793.34 fish eggs unid. unidentified fish eggs 23 492.80 Pleuronichthys spp. (eggs) turbot eggs 3 63.37 Sciaenidae unid. (eggs) croaker eggs 2 43.99 Total Eggs: 104 Target Invertebrates No Invertebrates

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -67 Survey: SMBEA25 Start Date: 12/13/2006 Stations: E1 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Gobiidae unid. gobies 10 23.25 Genyonemus lineatus white croaker 7 17.84 Atherinopsidae unid. silversides 4 9.84 Engraulis mordax northern anchovy 3 6.98 Pleuronichthys guttulatus diamond turbot 2 5.82 larval fish fragment unidentified larval fishes 2 5.46 Gibbonsia spp. clinid kelpfishes 2 5.35 Hypsoblennius spp. combtooth blennies 2 4.98 Sciaenidae unid. croakers 1 2.47 Symphurus atricauda California tonguefish 1 2.47 Engraulidae unid

. anchovies 1 2.44 Total Fishes: 35 Eggs fish eggs unid. unidentified fish eggs 183 895.96 Paralichthyidae unid. (eggs) sand flounder eggs 27 125.81 Sciaen. / Paralich. / Labridae (eggs) fish eggs 19 76.20 Citharichthys spp. (eggs) sanddab eggs 12 59.49 Pleuronichthys spp. (eggs) turbot eggs 4 18.78 Sciaenidae unid. (eggs) croaker eggs 3 14.24 Total Eggs: 248 Target Invertebrates Grapsidae unid. (megalops) shore crab megalops 3 7.32 Pugettia spp. (megalops) kelp crabs megalops 3 7.17 Majidae unid. (megalops) spider crab megalops 3 6.59 Cancer anthonyi (megalops) yellow crab megalops 2 4.78 Total Target Invertebrates: 11

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -68 Survey: SMBEA25 Start Date: 12/13/2006 Stations: M1- M3 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Genyonemus lineatus white croaker 175 293.54 Engraulis mordax northern anchovy 17 27.91 Engraulidae unid. anchovies 14 24.02 larval fish fragment unidentified larval fishes 8 13.40 Pleuronichthys ritteri spotted turbot 6 10.37 Paralichthys cal

ifornicus California halibut 5 8.73 Pleuronichthys guttulatus diamond turbot 5 8.47 Gobiidae unid. gobies 4 6.84 larvae, unidentified yolksac unidentified yolksac larvae 4 6.81 Lepidogobius lepidus bay goby 2 3.40 Hypsoblennius spp

. combtooth blennies 2 3.38 Citharichthys stigmaeus speckled sanddab 2 3.25 Sciaenidae unid. croakers 2 3.12 larval fish

- damaged unidentified larval fishes 2 3.06 Citharichthys spp. sanddabs 1 1.81 Paralichthyidae unid. sand flounders 1 1.81 Atherinopsidae unid. silve rsides 1 1.73 larval/post

-larval fish unid. larval fishes 1 1.72 Pleuronectidae unid. righteye flounders 1 1.72 Stenobrachius leucopsarus northern lampfish 1 1.72 Clinocottus spp. sculpins 1 1.66 Pleuronichthys verticalis hornyhead turbot 1 1.53 Total Fishes: 256 Target Invertebrates Pugettia spp. (megalops) kelp crabs megalops 34 60.04 Majidae unid. (megalops) spider crab megalops 5 8.91 Pinnixa spp. (megalops) pea crabs megalops 3 4.79 Brachyura unid. (megalops) unidentified crab megalops 1 1.72 Cancer anthonyi (megalops) yellow crab megalops 1 1.72 Paguridae unid. (megalops) hermit crab megalops 1 1.65 Cancer antennarius (megalops) brown rock crab megalops 1 1.47 Total Target Invertebrates: 46

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -69 Survey: SMBEA25 Start Date: 12/13/2006 Stations: O1 -O3 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes Genyonemus lineatus white croaker 208 324.26 Engraulis mordax northern anchovy 27 42.41 larval fish fragment unidentified larval fishes 20 31.24 Sciaenidae unid. croake rs 14 23.43 Engraulidae unid. anchovies 10 16.21 Pleuronichthys ritteri spotted turbot 5 8.08 Citharichthys stigmaeus speckled sanddab 5 7.77 Gobiidae unid. gobies 5 7.35 Pleuronichthys spp. turbots 2 3.22 Citharichthys spp. sanddabs 2 3.11 Hypsoble nnius spp . combtooth blennies 2 3.00 Paralichthys californicus California halibut 2 2.94 Labrisomidae unid. labrisomid blennies 1 1.71 Pleuronectidae unid. righteye flounders 1 1.60 Cottidae unid. sculpins 1 1.55 larvae, unidentified yolksac unidentif ied yolksac larvae 1 1.51 Lepidogobius lepidus bay goby 1 1.51 Sebastes spp. rockfishes 1 1.50 larval/post

-larval fish unid. larval fishes 1 1.39 Total Fishes: 309 Target Invertebrates Pugettia spp. (megalops) kelp crabs megalops 32 48.58 Pinnixa spp. (megalops) pea crabs megalops 7 10.72 Majidae unid. (megalops) spider crab megalops 3 4.97 Cancer anthonyi (megalops) yellow crab megalops 2 3.32 Cancer antennarius (megalops) brown rock crab megalops 2 3.26 Brachyura unid. (megalops) unidentified crab megalops 1 1.71 Grapsidae unid. (megalops) shore crab megalops 1 1.71 Paguridae unid. (megalops) hermit crab megalops 1 1.44 Total Target Invertebrates: 49

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -70 Survey: SMBEA25 Start Date: 12/13/2006 Stations: S1- S4 Mean Concentration Taxon Com mon Name Count (#/1,000m3) Fishes Genyonemus lineatus white croaker 30 35.69 Gobiidae unid. gobies 25 27.98 Hypsoblennius spp

. combtooth blennies 14 15.51 Pleuronichthys guttulatus diamond turbot 10 13.16 Atherinopsidae unid. silversides 6 7.85 l arval fish fragment unidentified larval fishes 6 7.20 Atherinopsis californiensis jacksmelt 4 5.22 Leuresthes tenuis California grunion 3 4.01 Engraulis mordax northern anchovy 3 3.34 Sciaenidae unid. croakers 3 3.15 Engraulidae unid. anchovies 2 2.40 Citharichthys stigmaeus speckled sanddab 2 2.26 larval fish

- damaged unidentified larval fishes 2 2.18 Pleuronichthys spp. turbots 1 1.31 larvae, unidentified yolksac unidentified yolksac larvae 1 1.25 Gibbonsia spp. clinid kelpfishes 1 1.11 Pleuronichthys ritteri spotted turbot 1 1.11 Pleuronectidae unid. righteye flounders 1 1.07 Total Fishes: 115 Target Invertebrates Pugettia spp. (megalops) kelp crabs megalops 15 18.54 Majidae unid. (megalops) spider crab megalops 5 6.08 Grapsidae unid. (megalops) shore crab megalops 3 3.60 Pinnixa spp. (megalops) pea crabs megalops 1 1.34 Cancer anthonyi (megalops) yellow crab megalops 1 1.25 Brachyura unid. (megalops) unidentified crab megalops 1 1.11 Lophopanopeus spp. (megalops) black

-clawed crab megalops 1 1.09 Total Target Invertebrates: 27

### Scattergood Generating Station

IM&E Final Report Appendix D1: Data by Survey and Station

D1 -71 Survey: SMBEA26 Start Date: 1/8/2007 Stations: E1 Mean Concentration Taxon Common Name Count (#/1,000m3) Fishes larvae, unidentified yolksac unidentified yolksac larvae 7 16.95 larval fish fragment unidentified larval fishes 1 2.30 Engraulidae unid. anchovies 1 2.16 Genyonemus lineatus white croaker 1 2.01 Total Fishes: 10 Eggs fish eggs unid. unidentified fish eggs 217 987.48 Paralichthyidae unid. (eggs) sand flounder eggs 51 237.81 Sciaenidae unid. (eggs) croaker eggs 50 225.87 Engraulidae unid. (eggs) anchovy eggs 11 53.16 Citharichthys spp. (eggs) sanddab eggs 4 18.74 Pleuronichthys spp. (eggs) turbot eggs 2 7.93 Labridae unid. (eggs) wrasse eggs 1 5.09 Sciaen. / Paralich. / Labri dae (eggs) fish eggs 1 3.97 Total Eggs: 337 Target Invertebrates Grapsidae unid. (megalops) shore crab megalops 3 6.72 Total Target Invertebrates:

### Scattergood Generating Station

IM&E Final Report Appendix D2: Calculated Annual Entrainment and Standard Error Data

D2-1 Appendix D2. Calculated Annual Entrainment and Standard Error Data Table D2

- 1. Calculated total annual entrainment and standard error of larval fish and eggs at SGS in 2006 based on actual and design cooling water intake flow volumes.

Taxon Common Name Calculated Annual Entrainment (Actual Flows) Standard Error Calculated Annual Entrainment (Design Flows) Standard Error Larval Fish larvae, unidentified yolksac unidentified yolksac larvae 71,105,628 6,746,592 97,034,455 9,183,536 Engraulidae unid

. anchovies 44,584,991 2,050,508 70,732,578 3,143,338 Sciaenidae unid. croakers 42,076,568 2,723,106 59,935,823 3,925,418 Genyonemus lineatus white croaker 32,104,891 2,816,731 46,634,188 3,995,679 Paralabrax spp. sand bass 29,681,768 2,045,706 40,350,936 2,759,901 unidentified fish, damaged unidentified damaged fish 16,873,865 1,163,001 23,667,890 1,602,100 Gobiidae unid. gobies 16,188,141 725,797 24,432,450 1,086,316 Sphyraena argentea Pacific barracuda 11,426,718 953,759 15,454,497 1,260,305 Seriphus politus queenfish 10,845,071 786,287 15,732,743 1,182,109 Paralichthys californicus California halibut 9,901,902 515,914 14,119,061 746,557 Hypsoblennius spp. combtooth blennies 8,324,912 389,829 14,230,416 797,487 Stenobrachius leucopsarus northern lampfish 6,802,760 419,835 9,850,466 602,362 Citharichthys spp. sanddabs 6,752,119 258,709 9,704,922 380,216 larval/post

-larval fish unid. larval fishes 6,518,392 640,173 8,886,496 867,014 Parophrys vetulus English sole 5,321,852 625,397 7,679,874 898,531 Pleuronichthys guttulatus diamond turbot 3,849,543 161,624 5,715,338 236,224 Pleuronichthys ritteri spotted turbot 3,819,479 171,028 5,149,021 227,060 Oxyjulis californica senorita 3,557,915 446,417 4,808,587 585,441 Atherinopsidae unid. silversides 3,262,545 354,131 5,118,106 508,953 Menticirrhus undulatus California corbina 2,923,692 297,142 3,949,712 399,471 Ophidiidae unid. cusk

-eels 2,736,151 285,228 3,748,116 388,881 Haemulidae unid. grunts 2,639,783 230,575 3,544,185 308,608 Lepidogobius lepidus bay goby 2,486,739 356,361 3,585,709 511,978 Symphurus atricauda California tonguefish 2,223,026 260,951 2,960,941 341,635 Ophidion scrippsae basketweave cusk

-eel 2,020,099 388,616 2,666,075 508,390 (table continued)

### Scattergood Generating Station

IM&E Final Report Appendix D2: Calculated Annual Entrainment and Standard Error Data

D2-2 Table D2

- 1 (continued). Calculated total annual entrainment and standard error of larval fish and eggs at SGS in 2006 based on actual and design cooling water intake flow volumes.

Taxon Common Name Calculated Annual Entrainment (Actual Flows) Standard Error Calculated Annual Entrainment (Design Flows) Standard Error Xenistius californiensis salema 1,802,466 288,933 2,398,412 379,179 Pleuronectidae unid. righteye flounders 1,705,131 134,524 2,479,133 186,855 Halichoeres semicinctus rock wrasse 1,485,009 234,652 1,987,553 308,060 Anisotremus davidsonii sargo 1,429,808 320,539 1,885,888 418,988 Pleuronichthys spp. turbots 1,371,357 84,199 2,015,258 124,346 Cheilotrema saturnum black croaker 1,057,263 80,757 1,612,817 121,329 Semicossyphus pulcher California sheephead 996,476 125,912 1,410,524 173,320 Xystreurys liolepis fantail sole 947,250 87,159 1,321,097 117,367 Hippoglossina stomata bigmouth sole 504,168 40,052 692,795 54,929 Pleuronichthys verticalis hornyhead turbot 458,506 59,023 695,163 90,256 Leptocottus armatus Pacific staghorn sculpin 396,988 41,929 587,603 61,525 Hypsypops rubicundus garibaldi 342,045 92,019 439,007 117,330 Sardinops sagax Pacific sardine 336,514 61,574 440,204 80,385 Icelinus spp. sculpins 332,245 39,714 673,518 76,157 Gibbonsia spp. clinid kelpfishes 323,127 31,483 483,606 46,663 Merluccius productus Pacific hake 320,228 26,497 462,059 38,069 Chilara taylori spotted cusk

-eel 240,042 41,524 323,484 56,427 Gobiesocidae unid. clingfishes 213,464 43,760 308,008 62,872 Labrisomidae unid. labrisomid blennies 206,915 33,388 285,812 44,891 Ruscarius meanyi Puget Sound sculpin 192,282 0 264,225 0 Paralichthyidae unid. sand flounders 164,761 25,884 226,429 35,259 Gillichthys mirabilis longjaw mudsucker 162,636 28,940 227,901 40,026 Triphoturus mexicanus Mexican lampfish 153,952 25,950 211,113 35,456 Kyphosidae unid. sea chubs 153,952 25,950 211,113 35,456 Pleuronectiformes unid. flatfishes 151,803 22,816 224,418 33,206 Lyopsetta exilis slender sole 142,944 29,304 206,255 42,102 Syngnathus spp . pipefishes 125,294 20,686 181,415 29,830 Rhinogobiops nicholsi blackeye goby 106,732 21,880 154,004 31,436 (table continued)

### Scattergood Generating Station

IM&E Final Report Appendix D2: Calculated Annual Entrainment and Standard Error Data

D2-3 Table D2

- 1 (continued). Calculated total annual entrainment and standard error of larval fish and eggs at SGS in 2006 based on actual and design cooling water intake flow volumes.

Taxon Common Name Calculated Annual Entrainment (Actual Flows) Standard Error Calculated Annual Entrainment (Design Flows) Standard Error Bathylagidae unid. blacksmelt 106,732 21,880 154,004 31,436 Pomacentridae unid. damselfishes 105,813 20,100 140,515 26,583 Sebastolobus spp. thornyheads 100,556 19,174 135,379 25,630 Myctophidae unid. lanternfishes 96,636 18,942 158,229 30,629 Roncador stearnsi spotfin croaker 95,473 18,174 126,622 23,993 Labridae unid. wrasses 93,572 18,296 132,172 25,425 Ruscarius creaseri roughcheek sculpin 88,773 18,199 128,091 26,146 Atractoscion nobilis white seabass 83,223 16,056 136,452 25,354 Oxylebius pictus painted greenling 72,573 14,462 168,293 32,394 Isopsetta isolepis butter sole 71,472 14,652 103,128 21,051 Typhlogobius californiensis blind goby 66,577 17,446 140,052 36,161 Clupea pallasii Pacific herring 57,162 15,463 78,803 21,061 Chromis punctipinnis blacksmith 49,752 13,345 68,224 18,234 Etrumeus teres round herring 48,516 13,017 63,639 17,008 Acanthogobius flavimanus yellowfin goby 47,765 15,153 67,380 21,308 Sebastes spp. rockfishes 47,244 12,672 64,785 17,315 Girella nigricans opaleye 46,855 12,572 61,460 16,426 Zaniolepis spp. combfishes 43,694 11,718 58,703 15,689 Hexagrammidae unid. greenlings 43,694 11,718 58,703 15,689 Artedius spp. sculpins 40,139 12,733 56,622 17,905 Total 365,258,133 524,202,652 Fish Eggs fish eggs unid. unidentified fish eggs 3,186,607,290 65,120,749 4,957,177,075 96,648,522 Paralichthyidae unid. sand flounder eggs 581,532,916 16,080,686 943,922,353 24,719,764 Sciaenidae/Paralichthyidae/Labridae fish eggs 363,868,587 14,234,876 546,560,618 21,981,543 Citharichthys spp. sanddab eggs 264,262,380 8,657,737 407,681,780 12,825,952 Engraulidae unid. anchovy eggs 236,042,601 10,339,278 382,782,525 15,117,656 Pleuronichthys spp. turbot eggs 196,522,432 5,134,411 300,553,243 8,257,910 (table continued)

### Scattergood Generating Station

IM&E Final Report Appendix D2: Calculated Annual Entrainment and Standard Error Data

D2-4 Table D2

- 1 (continued). Calculated total annual entrainment and standard error of larval fish and eggs at SGS in 2006 based on actual and design cooling water intake flow volumes.

Taxon Common Name Calculated Annual Entrainment (Actual Flows) Standard Error Calculated Annual Entrainment (Design Flows) Standard Error Sciaenidae unid. croaker eggs 48,599,063 1,749,918 71,832,520 2,554,700 Genyonemus lineatus white croaker eggs 34,295,926 2,437,843 68,597,355 5,174,405 Sphyraena argentea Pacific barracuda eggs 2,921,818 325,670 3,927,243 437,133 Pleuronectidae unid. righteye flounder eggs 2,514,297 377,912 3,682,243 530,807 Paralichthys californicus California halibut eggs 1,240,920 69,969 2,653,308 149,108 Paralabrax spp. sand bass eggs 272,775 73,152 366,476 97,945 Roncador stearnsi spotfin croaker eggs 226,555 61,075 624,741 166,969 Labridae unid. wrasse eggs 201,832 37,942 303,034 56,496 Microstomus pacificus Dover sole eggs 175,271 20,748 252,900 29,810 Pleuronichthys guttulatus diamond turbot eggs 57,905 15,812 94,696 25,309 Scomber japonicus Pacific mackerel eggs 41,699 11,220 61,110 16,332 Oxyjulis californica senorita eggs 37,759 10,179 104,124 27,828 Total 4,919,422,026 7,691,177,343

### Scattergood Generating Station

IM&E Final Report Appendix D2: Calculated Annual Entrainment and Standard Error Data

D2-5 Table D2

-2. Calculated total annual entrainment and standard error of target shellfishes at SGS in 2006 based on actual and design cooling water intake flow volumes.

Taxon Common Name Calculated Annual Entrainment (Actual Flows) Standard Error Calculated Annual Entrainment (Design Flows) Standard Error Pugettia spp. kelp crabs megalops 10,007,018 944,340 14,664,011 1,359,390 Pinnixa spp. pea crabs megalops 4,328,231 449,766 6,809,148 694,127 Loligo opalescens market squid 3,367,525 779,783 4,929,707 1,134,986 Cancer spp. cancer crabs megalops 1,634,850 226,996 2,380,819 311,708 Petrolisthes spp. porcelain crab megalops 1,113,720 171,732 1,577,486 241,880 Majidae unid. spider crab megalops 1,092,243 92,777 1,573,624 133,064 Lophopanopeus spp. black

-clawed crab megalops 1,074,059 176,770 1,537,121 239,043 Grapsidae unid. shore crab megalops 1,047,391 86,623 1,553,225 124,189 Paguridae unid. hermit crab megalops 776,523 89,619 1,124,963 126,468 Pachycheles spp. porcelain crabs megalops 719,490 170,762 992,034 229,295 Emerita analoga mole crabs megalops 484,611 56,178 737,259 82,774 Brachyura unid. unidentified crab megalops 409,418 52,776 591,144 74,855 Pachycheles rudis thickclaw porcelain crab megalops 358,426 75,340 735,780 146,900 Porcellanidae unid. porcelain crab megalops 260,586 30,506 405,689 47,157 unidentified crab unidentified crab megalops 241,620 36,048 373,902 53,748 Hippoidea unid. mole crab megalops 101,667 19,420 143,472 27,164 Pinnotheres spp. pea crab megalops 83,454 17,125 120,369 24,571 Diogenidae left

-handed hermit crabs megalops 56,636 15,188 7 6,091 20,336 Fabia subquadrata grooved mussel crab megalops 47,765 15,153 67,380 21,308 Panulirus interruptus California spiny lobster (larval) 45,031 12,102 67,381 18,008 Pachycheles pubescens pubescent porcelain crab megalops 40,343 11,561 79,418 22,027 Petrolisthes cinctipes flat porcelain crab megalops 32,230 8,688 88,875 23,753 Total 27,322,839 40,628,889

# Scattergood Generating Station



# Appendix E Impingement Data
E1. Normal Operation Impingement Data
- Fish E2. Velocity Cap Study Impingement Data

– Fish E3. Heat Treatment Impingement Data

– Fish E4. Normal Operation Impingement Data

– Invertebrates E5. Velocity Cap Study Impingement Data

– Invertebrates E6. Heat Treatment Impingement Data

– Invertebrates

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 -1 Appendix E1. Normal Operation Impingement Data - Fish Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey : SGSFI1 Start Date: January 10

- 11, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) All Hypsoblennius gilberti rockpool blenny 7 0.115

Citharichthys stigmaeus speckled sanddab 4 0.043 Engraulis mordax nort hern anchovy 3 0.025 Seriphus politus queenfish 2 0.056 Brachyistius frenatus kelp perch 1 0.008 Oxylebius pictus painted greenling 1 0.023 Pleuronichthys ritteri spotted turbot 1 0.003 Scorpaena guttata California scorpionfish 1 0.024 Sebastes rastrelliger grass rockfish 1 0.556 Syngnathus californiensis kelp pipefish 1 0.001 Synodus lucioceps California lizardfish 1 0.005 23 0.859

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 -2 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI2 Start Date: January 17, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1&2 Brachyistius frenatus kelp perch 1 0.007

Heterostichus rostratus giant kelpfish 1 0.047 Platyrhinoidis triseriata thornback 1 0.376 3 0.43 3 Engraulis mordax northern anchovy 14 0.049

Syngnathus californiensis kelp pipefish 4 0.009 Heterodontus francisci horn shark 1 0.027 Hypsoblennius gilberti rockpool blenny 1 0.014 Platyrhinoidis triseriata thornback 1 0.731 Pleur onichthys ritteri spotted turbot 1 0.077 Scorpaena guttata California scorpionfish 1 0.01 23 0.917

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 -3 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI3 Start Date: January 24, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1&2 Engraulis mordax northern anchovy 1 0.002 1 0.002 3 Engraulis mordax northern anchovy 1 0.003

Syngnathus sp pipefish 1 0.003 2 0.006

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 -4 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI4 Start Date: January 31, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1&2 Atherinopsidae atherinopsid eggs

- 0.005

Atherinopsis californiensis jacksmelt 2 0.159 Citharichthys stigmaeus speckled sanddab 4 0.031 Engraulis mordax northern anchovy 3 0.012 Seriphus politus queenfish 4 0.04 Syngnathus leptorhynchus bay pipefish 2 0.003 Urobatis halleri round stingray 1 0.025 16 0.275 3 Citharichthys stigmaeus speckled sanddab 2 0.011

Engraulis mordax northern anchovy 10 0.044 Peprilus simillimus Pacific pompano 1 0.018 Pleuronichthys ritteri spotted turbot 2 0.106 Seriphus politus queenfish 3 0.007 Syngnathus leptorhynchus bay pipefish 5 0.011 Urobatis halleri round stingray 1 0.036 24 0.233

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 -5 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI5 Start Date: February 7, 2006 Survey Totals Unit Taxo

n Common Name Abundance Biomass (kg) 1&2 Heterostichus rostratus giant kelpfish 1 0.012

Odontopyxis trispinosa pygmy poacher 1 0.002 Syngnathus californiensis kelp pipefish 1 0.01 Triakis semifasciata leopard shark 1 0.011 4 0.035 3 Engraulis mordax northern anchovy 3 0.014

Syngnathus californiensis kelp pipefish 6 0.014 9 0.028

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 -6 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI6 Start Date: February 14, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1&2 No Fish 3 Atherinopsidae* atherinopsid eggs 1347 0.013

- 0.013
* Not included in total abundance.

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 -7 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI7 Start Date: February 21, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1&2 Odontopyxis trispinosa pygmy poacher 1 0.002

Peprilus simillimus Pacific pompano 1 0.015 Syngnathus leptorhynchus bay pipefish 1 0.001 Atherinopsidae* atherinopsid eggs 5 0.001 3 0.018 3 Engraulis mordax northern anchovy 3 0.004

Ophidion scrippsae basketweave cusk

- eel 1 0.035 Syngnathus leptorhynchus bay pipefish 3 0.005 Sy ngnathus sp pipefish 1 0.001 Atherinopsidae* atherinopsid eggs 80 0.001 8 0.045
* Not included in total abundance.

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 -8 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI8 Start Date: February 28, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1&2 Engraulis mordax northern anchovy 7 0.029

Seriphus politus queenfish 14 0.053 Syngnathus leptorhynchus bay pipefish 1 0.001 Synodus lucioceps Califor nia lizardfish 1 0.009

23 0.092 3 Citharichthys stigmaeus speckled sanddab 1 0.006

Engraulis mordax northern anchovy 8 0.038 Peprilus simillimus Pacific pompano 4 0.042 Platyrhinoidis triseriata thornback 1 0.163 Scorpaenichthys marmorat us cabezon 1 0.115 Seriphus politus queenfish 4 0.012 Syngnathus leptorhynchus bay pipefish 1 0.003 20 0.379

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 -9 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI9 Start Date: March 7, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 Engraulis mordax northern anchovy 3 0.014

Synodus lucioceps California lizardfish 1 0.009 4 0.023 2 Chromis punctipinnis blacksmith 5 1.374

Seriphus politus queen fish 2 0.034 Syngnathus californiensis kelp pipefish 1 0.001 8 1.409 3 Engraulis mordax northern anchovy 5 0.017

Hypsoblennius gilberti rockpool blenny 1 0.004 Odontopyxis trispinosa pygmy poacher 3 0.009 Peprilus simillimus Pacific pomp ano 1 0.014 Platyrhinoidis triseriata thornback 1 0.02 Pleuronichthys ritteri spotted turbot 1 0.017 Scorpaena guttata California scorpionfish 1 0.037 Seriphus politus Queenfish 1 0.005 Syngnathus californiensis kelp pipefish 3 0.008 Syngnathus sp Pipefish 2 0.002 Synodus lucioceps California lizardfish 9 0.075 28 0.208

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 - 10 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI10 Start Date: March 14, 2006 Survey Totals Unit Ta

xon Common Name Abundance Biomass (kg) 1 Engraulis mordax northern anchovy 1 0.01

Pleuronichthys ritteri spotted turbot 1 0.011 2 0.021 2 Oxylebius pictus painted greenling 1 0.003 1 0.003 3 Hypsoblennius gilberti rockpool blenny 1 0.012

Syngnathus californiensis kelp pipefish 1 0.004 Urobatis halleri round stingray 1 0.161 3 0.177

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 - 11 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI11 Start Date: March 21, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 Engraulis mordax northern anchovy 1 0.005

Gobiesox rhessodon California clingfish 1 0.001 2 0.006 2 Atherinops affinis Topsmelt 2 0.065

Engraulis mordax norther n anchovy 2 0.008 Paralabrax nebulifer barred sand bass 1 1.45 Sebastes auriculatus brown rockfish 1 0.179 Synodus lucioceps California lizardfish 1 0.005 7 1.707 3 Anchoa delicatissima slough anchovy 1 0.008

Atherinops affinis Topsmelt 1 0.059 Odontopyxis trispinosa pygmy poacher 1 0.002 Synodus lucioceps California lizardfish 8 0.055 11 0.124

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 - 12 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI12 Start Date: March 28, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 Synodus lucioceps California lizardfish 1 0.007 1 0.007 1&2 Engraulis mordax northern anchovy 1 0.012 1 0.012 2 Chromis punctipinnis blacksmith 1 0.358

Rathbunella alleni stripefin ronquil 1 0.009 2 0.367 3 Engraulis mordax northern anchovy 1 0.001

Heterodontus francisci horn shark 1 2.2 Myliobatis californica bat ray 1 0.39 Scorpaena guttata California scorpionfish 1 0.013 4 2.604

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 - 13 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI13 Start Date: April 4, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 No Fish 2 Hypsoblennius gi lberti rockpool blenny 1 0.004 Pleuronichthys ritteri spotted turbot 1 0.018 2 0.022 3 Hypsoblennius gilberti rockpool blenny 1 0.001

Scorpaena guttata California scorpionfish 1 0.033 2 0.034

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 - 14 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI14 Start Date: April 11, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 Engraulis mordax northern anchovy 1 0.01

Myliobatis californica bat ray 1 0.32 2 Ophichthus zophochir yellow snake eel 1 0.187 Seriphus politus queenfish 3 0.078 6 0.597 2 Peprilus simillimus Pacific pompano 1 0.034

Seriphus politus queenfish 4 0.117 5 0.151 3 Engraulis mordax northern anchovy 3 0.028

Pe prilus simillimus Pacific pompano 1 0.021 Platyrhinoidis triseriata thornback 2 0.604 Pleuronichthys guttulatus diamond turbot 1 0.199 Pleuronichthys verticalis hornyhead turbot 1 0.03 Seriphus politus queenfish 27 0.51 Syngnathus californiensis kelp pipefish 1 0.001 Syngnathus leptorhynchus bay pipefish 2 0.002 Syngnathus sp pipefish 1 0.001 Synodus lucioceps California lizardfish 2 0.019 41 1.415

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 - 15 Scattergood Generating Station - Normal Operation Impingement Data - Fish Su rvey: SGSFI15 Start Date: April 18, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 Syngnathus californiensis kelp pipefish 1 0.001 1 0.001 2 Scorpaenichthys marmoratus cabezon 1 0.213 1 0.213 3 Atherinopsis californiensis jacksmelt 1 0.131

Engraulis mordax northern anchovy 1 0.011 Myliobatis californica bat ray 2 0.433 Ophidion scrippsae basketweave cusk

-eel 1 0.023 Pleuronichthys guttulatus diamond turbot 1 0.111 Porichthys not

atus plainfin midshipman 1 0.038 Scorpaena guttata California scorpionfish 1 0.02 Seriphus politus queenfish 6 0.136 Syngnathus californiensis kelp pipefish 3 0.013 17 0.916

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 - 16 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI16 Start Date: April 25, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 Atherinopsis californiensis jacksmelt 2 0.171

Engraulis mordax northern anchovy 3 0.039 Peprilus simillimus Pacific pompano 1 0.018 Synodus lucioceps California lizardfish 2 0.025 8 0.253 2 Atherinopsis californiensis jacksmelt 5 0.4

Engraulis mordax northern anchovy 6 0.076 Myliobatis californica bat ray 2 0.504 Peprilus simillimus Pacif ic pompano 1 0.023 Pleuronichthys verticalis hornyhead turbot 1 0.011 Seriphus politus queenfish 4 0.075 Synodus lucioceps California lizardfish 5 0.062 24 1.151 3 Atherinopsis californiensis jacksmelt 106 9.207

Brachyistius frenatus kelp perch 1 0.015 Citharichthys stigmaeus speckled sanddab 1 0.001 Embiotoca jacksoni black perch 4 0.023 Engraulis mordax northern anchovy 32 0.5 Genyonemus lineatus white croaker 1 0.001 Hyperprosopon argenteum walleye surfperch 2 0.006 Hypsobl ennius jenkinsi mussel blenny 1 0.004 Myliobatis californica bat ray 4 1.05 Peprilus simillimus Pacific pompano 9 0.296 Pleuronichthys verticalis hornyhead turbot 1 0.027 Seriphus politus queenfish 28 0.67 Syngnathus californiensis kelp pipefish 1 0.009 Synodus lucioceps California lizardfish 42 0.487 Zalembius rosaceus pink seaperch 1 0.027 234 12.323

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 - 17 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI17 Start Date: May 2, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 Hypsoblennius gilberti rockpool blenny 1 0.019 1 0.019 2 Cymatogaster aggregata shiner perch 1 0.001

Seriphus politus queenfish 1 0.018 2 0.019 3 Atherinops affinis topsmelt 1 0.088

Atherinopsis californiensis jacksmelt 2 0.278 Citharichthys stigmaeus speckled sanddab 1 0.02 Engraulis mordax northern anchovy 1 0.014 Odontopyxis trispinosa pygmy poacher 1 0.001 Peprilus simillimus Pacific pompano 1 0.021 Scomber japonicus Pacific chub mackerel 1 0.109 Seriphus politus queenfish 9 0.303 Syngnathus californiensis kelp pipefish 1 0.004 Atherinopsidae* atherinopsid eggs 50 0.001 18 0.838

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 - 18 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI18 Start Date: May 9, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 No Fish 2 Scorpaena guttata California scorpionfish 1 0.031

Syngnathus californiensis kelp pipefish 1 0.003 Atherinopsidae* atherinopsid eggs 1105 0.023 2 0.034 3 Artedius corallinus coralline sculpin 1 0.009

Peprilus simillimus Pacific pompano 2 0.157 Seriphus politus queenfish 13 0.272 Atherinopsidae* atherinopsid eggs 300 0.006 16 0.438

* Not included in total abundance.

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 - 19 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI19 Start Date: May 16, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 Hypsoblennius jenkinsi mussel blenny 1 0.003

Peprilus simillimus Pacific pompano 2 0.059 Seriphus politus queenfish 5 0.105 Atherinopsidae* atherinopsid eggs 100 0.007 8 0.167 2 Embiotoca jackso ni black perch 1 0.014 Myliobatis californica bat ray 1 0.189 Peprilus simillimus Pacific pompano 3 0.108 Seriphus politus queenfish 8 0.237 Atherinopsidae* atherinopsid eggs 125 0.005 13 0.548 3 Cymatogaster aggregata shiner perch 1 0.002

Hyperprosopon argenteum walleye surfperch 1 0.003 Micrometrus minimus dwarf perch 1 0.001 Peprilus simillimus Pacific pompano 1 0.029 Seriphus politus queenfish 23 0.386 27 0.421
* Not included in total abundance.

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 - 20 Scatt ergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI20 Start Date: May 23, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 Myliobatis californica bat ray 1 0.285

Seriphus politus queenfish 9 0.269 Atherinopsidae* atherinopsid eggs 515 0.008 10 0.554 2 Atherinopsis californiensis jacksmelt 1 0.147

Peprilus simillimus Pacific pompano 1 0.032 Sardinops sagax Pacific sardine 1 0.026 Seriphus politus queenfish 7 0.174 Atherinopsidae* atherinopsid eggs 325 0.005 10 0.379 3 No Fish

* Not included in total abundance.

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 - 21 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI21 Start Date: May 30, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 Cymatogaster aggregata shiner perch 1 0.002

Hyperprosopon argenteum walleye surfperch 1 0.004 Atherinopsidae* atherinopsid eggs 25 0.001 2 0.006 2 Seriphus politus Queenfish 6 0.125

Atherinopsidae* atherinopsid eggs 135 0.004 6 0.125 3 No Fish

* Not included in total abundance.

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 - 22 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI22 Start Date: June 6, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 Atherinopsidae atherinopsid eggs

- 0.001

Engraulis mordax northern anchovy 1 0.015 Genyonemus lineatus whi te croaker 1 0.003 Seriphus politus Queenfish 2 0.057 Syngnathus californiensis kelp pipefish 1 0.01 5 0.086 2 Genyonemus lineatus white croaker 8 0.017

Hypsoblennius gilberti rockpool blenny 2 0.013 Seriphus politus Queenfish 2 0.052 12 0.082 3 No Fish

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 - 23 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI23 Start Date: June 13, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 Cymatogaster aggregata shiner perch 1 0.015

Genyonemus lineatus white croaker 2 0.007 Seriphus politus queenfish 3 0.049 Urobatis halleri round stingray 1 0.289 7 0.36 2 Genyonemus lineatus white croaker 2 0.007

Seriphus politus queenfish 3 0.072 Syngnathus leptorhynchus bay pipefish 1 0.004 Atherinopsidae* atherinopsid eggs 80 0.001 6 0.083 3 No Fish

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 - 24 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI24 Start Date: Jun

e 20, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 Genyonemus lineatus white croaker 1 0.004 1 0.004 2 Embiotoca jacksoni black perch 1 0.007

Seriphus politus Queenfish 1 0.025 2 0.032 3 Embiotoca jacksoni black perch 1 0.004

Micrometrus minimus dwarf perch 2 0.007 Myliobatis californica bat ray 1 0.196 Seriphus politus Queenfish 1 0.004 5 0.211

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 - 25 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI25 Start Date: June 27, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 Myliobatis californica bat ray 1 0.21 1 0.21 2 Genyonemus lineatus white croaker 1 0.004 1 0.004 3 Ge

nyonemus lineatus white croaker 5 0.015 Myliobatis californica bat ray 2 13.15 Phanerodon furcatus white seaperch 1 0.089 Pleuronichthys verticalis hornyhead turbot 1 0.035 Rhacochilus vacca pile perch 1 0.011 Seriphus politus queenfish 4 0.069 Syngnathus californiensis kelp pipefish 1 0.001 15 13.37

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 - 26 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI26 Start Date: July 5, 2006 Survey Totals Unit Taxon Common Name Abundan ce Biomass (kg) 1 Clinidae unid kelp blenny unid 1 0.001

Engraulis mordax northern anchovy 1 0.009 Genyonemus lineatus white croaker 2 0.008 Heterostichus rostratus giant kelpfish 1 0.105 5 0.123
2 Engraulis mordax northern anchovy 3 0.05 1

Genyonemus lineatus white croaker 4 0.017 Platyrhinoidis triseriata thornback 1 0.035 Seriphus politus queenfish 6 0.014 14 0.117
3 Atherinops affinis topsmelt 2 0.043

Cymatogaster aggregata shiner perch 1 0.003 Embiotoca jacksoni bl ack perch 1 0.289 Genyonemus lineatus white croaker 25 0.098 Hyperprosopon argenteum walleye surfperch 1 0.084 Phanerodon furcatus white seaperch 1 0.002 Platyrhinoidis triseriata thornback 1 0.104 Seriphus politus queenfish 35 0.168 67 0.791

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 - 27 Scattergood Generating Station - Normal Operation Impingement Data

– Fish Survey: SGSFI27 Start Date: July 11, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 Genyonemus lineatus white croaker 1 0.004

Hypsoblennius gilberti rockpool blenny 1 0.009 2 0.013
2 Cymatogaster aggregata shiner perch 3 0.023

Myliobatis californica bat ray 1 0.418 Phanerodon furcatus white seaperch 1 0.135 Scorpaena guttata California scorpionfish 1 0.048 Seriphus politus queenfish 3 0.018 9 0.642
3 Atherinops affinis topsmelt 1 0.027

Cymatogaster aggregata shiner perch 4 0.007 Genyonemus lineatus white croaker 25 0.115 Myliobatis californica bat ray 1 2.65 Sardinops sagax Pacific sardine 2 0.036 Seriphus politus queenfish 9 0.039 Syngnathus californiensis kelp pipefish 1 0.002 43 2.876

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 - 28 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI28 Start Date: July 18, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 Genyonemus lineatus white croaker 1 0.004

Seriphus politus queenfish 1 0.005 2 0.009
2 Cymatogaster aggregata shiner perch 1 0.007

Genyonemus lineatus white croaker 1 0.006 Pleuronichthys verticalis hornyhead turbot 1 0.108 Seriphus politus queenfish 3 0.016 6 0.137
3 Atherinops affinis topsmelt 1 0.025

Genyonemus lineatus white croaker 16 0.079 Seriphus politus queenfish 24 0.139 41 0.243

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 - 29 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI29 Start Date: July 25, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 Cymatogaster aggregata shiner perch 1 0.005

Genyonemus lineatus white croaker 1 0.004 Scorpaenichthys marmoratus Cabezon 1 0.053 3 0.062
2 Cymatogaster aggregata shiner perch 1 0.007

Genyonemus lineatus white croaker 1 0.006 2 0.013
3 Atherinopsis californiensis Jacksmelt 1 0.085

Cymatogaster aggregata shiner perch 1 0.005 Genyonemus lineatus white croaker 10 0.078 Phanerodon furcatus white seaperch 1 0.097 Rathbunella alleni stripefin ronquil 1 0.009 Ruscarius creaseri roughcheek sculpin 1 0.001 Scomber japonicus Pacific chub mackerel 1 0.07 Seriphus politus Queenfish 1 0.037 Urobatis halleri round stingray 1 1 18 1.382

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 - 30 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI30 Start Date: August 1, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 Anchoa delicatissima slough anchovy 1 0.013

Anisotremus davidsonii sargo 1 0.667 Atherinopsis californiensis jacksmelt 4 0.497 Cymatogaster aggregata shiner perch 6 0.083 Embiotoca jacksoni black perch 1 0.027 Engraulis mordax northern anchovy 5 0.046 Genyonemus lineatus white croaker 4 0.024 Paralabrax nebulifer barred sand bass 1 0.272 Peprilus simillimus Pacific pompano 1 0.04 Phanerodon furcatus white seaperch 1 0.037 Scorpaenichthys marmoratus cabezon 1 0.024 Seriphus politus queenfish 2 0.033 28 1.763
2 Atherinopsis californiensis Jacksmelt 9 0.913

Cymatogaster aggregata shiner perch 11 0.124 Embiotoca jacksoni black perch 1 0.04 Engraulis mordax northern anchovy 6 0.066 Genyonemus lineatus white croaker 10 0.056 Hypsoblennius gilberti rockpool blenny 2 0.008 Myliobatis californica bat ray 1 0.154 Paralabrax nebulifer barred sand bass 1 0.18 Peprilus simillimus Pacific pompano 4 0.174 Pleuronichthys ritteri spotted turbot 1 0.13 Sebastes paucispinis Bocaccio 1 0.023 Seriphus politus Queenfish 8 0.259 Xenistius californiensis Salema 1 0.081 56 2.208
3 Anchoa delicatissima slough anchovy 1 0.021

Anisotremus davidsonii Sargo 6 4.759 Atherinops affinis Topsmelt 77 9.019 Atherinopsis californiensis Jacksmelt 57 7.231 (continued on next page)

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 - 31 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI30 (Continued) Start Date: August 1, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 3 (Continued)

Chromis punctipinnis blacksmith 3 0.868 Cymatogaster aggregata shiner perch 15 0.204 Engraulis mordax northern anchovy 11 0.172 Genyonemus lineatus white croaker 7 0.523 Myliobatis californica bat ray 1 0.164 Paralabrax nebulifer barred sand bass 4 1.361 Peprilus simillimus Pacific pompano 3 0.207 Phanerodon furcatus white seaperch 10 1.315 Scomber japonicus Pacif ic chub mackerel 1 0.206 Sebastes miniatus vermillion rockfish 1 0.011 Seriphus politus Queenfish 49 1.5 Umbrina roncador Yellowfin croaker 1 0.22 Urobatis halleri round stingray 2 0.826 249 28.607

Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI31 Start Date: August 8, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 Myliobatis californica bat ray 20 7.5 20 7.5
2 No Fish
3 No Fish

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 - 32 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI32 Start Date: August 16, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 Sardinops sagax Pacific sardine 3 0.107 3 0.107
2 Atherinops affinis Topsmelt 20 0.26

Atherinopsis californiensis Jacksmelt 29 0.699 Cymatogaster aggregata shiner perch 1 0.004 Sardinops sagax Pacific sardine 1 0.04 51 1.003
3 Atherinops affinis Topsmelt 20 0.2

Atherinopsis californiensis Jacksmelt 21 0.79 41 0.99

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 - 33 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI33 Start Date: August 22, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 Myliobatis californica bat ray 1 1.2 1 1.2
2 Atherinops affinis topsmelt 1 0.019 1 0.019
3 No Fish

Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI34 Start Date: August 29, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 No Fish
2 No Fish
3 Scorpaena guttata California scorpionfish 1 0.266 1 0.266

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 - 34 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI35 Start Date: September 5, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 Scorpaena guttata California scorpionfish 1 0.263 1 0.263
2 Sardinops sagax Pacific sardine 1 0.038 1 0.038
3 No Fish

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 - 35 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI36 Start Date: September 12, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 No Fish
2 Engraulis mordax northern anchovy 1 0.002 1 0.002
3 No Fish

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 - 36 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI37 Start Date: September 19, 2006 Survey Tot als Unit Taxon Common Name Abundance Biomass (kg) 1 No Fish
2 No Fish
3 Chromis punctipinnis blacksmith 1 0.306

Myliobatis californica bat ray 1 0.381 2 0.687

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 - 37 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI38 Start Date: September 26, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 Paralabrax clathratus kelp bass 1 0.004

Pleuronichthys ritteri spotted turbot 1 0.103 2 0.107
2 Hypsoblennius jenkinsi mussel blenny 1 0.002

Myliobatis californica bat ray 1 0.331 2 0.333
3 Sardinops sagax Pacific sardine 1 0.041 1 0.041

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 - 38 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SG

SFI39 Start Date: October 3, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 Scomber japonicus Pacific chub mackerel 1 0.127 1 0.127
2 No Fish
3 Hypsoblennius gilberti rockpool blenny 1 0.002 1 0.002

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 - 39 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI40 Start Date: October 10, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 Atherinops affinis Topsmelt 1 0.018

Phanerodon furcatus white seaperch 1 0.019 2 0.037
2 Atherinops affinis Topsmelt 3 0.062 3 0.062
3 Atherinops affinis Topsmelt 15 0.496

Atherinopsis californiensis Jacksmelt 1 0.035 Sardinops sagax Pacific sardine 3 0.142 19 0.673

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 -40 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI41 Start Date: October 17, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 No Fish
2 Paralabra

x nebulifer barred sand bass 1 0.579 1 0.579
3 No Fish

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 -41 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI45 Start Date: November 14, 2006 Survey Totals Unit Taxon Common N ame Abundance Biomass (kg) 1 Scomber japonicus Pacific chub mackerel 1 0.078 1 0.078
2 No Fish
3 Myliobatis californica bat ray 1 2.6

Platyrhinoidis triseriata Thornback 1 0.438 2 3.038

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 -42 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI49 Start Date: December 12, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 Anchoa compressa deepbody anchovy 1 0.004

Anchoa delicatissima slough anchovy 1 0.004 Atherinops affinis Topsmelt 9 0.561 Atherinopsis californiensis Jacksmelt 13 1.257 Engraulis mordax northern anchovy 1 0.003 Hypsoblennius gilberti rockpool blenny 1 0.002 Sardinops sagax Pacific sardine 24 0.5 Seriphus politus Queenfish 3 0.012 53 2.343
2 Anchoa compressa deepbody anchovy 1 0.006

Atherinopsis californiensis Jacksmelt 37 2.75 Engraulis mordax northern anchovy 5 0.013 Odontopyxis trispinosa pygmy poacher 1 0.002 Sardinops sagax Pacific sardine 44 0.841 Scorpaena guttata California scorpionfish 1 0.001 Seriphus politus Queenfish 3 0.006 92 3.619
3 Anchoa compressa deepbody anchovy 3 0.018

Atherinops affinis Topsmelt 40 0.923 Atherinopsis californiensis Jacksmelt 178 14.587 Engraulis mordax northern anchovy 42 0.11 Heterostichus rostratus giant kelpfish 1 0.012 Myliobatis californica bat ray 1 0.618 Paralichthys californicus California halibut 5 0.525 Peprilus simillimus Pacific pompano 5 0.125 Platyrhinoidis triseriata Thornback 1 0.33 Pleuronichthys ritteri spotted turbot 8 0.026 Pleuronichthys verticalis hornyhead turbot 5 0.13 Porichthys myriaster specklefin midshipman 1 0.063 Sardinops sagax Pacific sardine 28 0.693 Scorpaena guttata California scorpionfish 2 0.003 Sebastes paucispinis bocaccio 5 0.02 Seriphus politus queenfish 114 0.778 Syngnathus sp pipefish unid 10 0.015 449 18.976

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 -43 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI50 Start Dat e: December 19, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 Engraulis mordax northern anchovy 2 0.006

Platyrhinoidis triseriata Thornback 1 0.447 Seriphus politus Queenfish 9 0.024 12 0.477
2 Citharichth ys stigmaeus speckled sanddab 1 0.001 Engraulis mordax northern anchovy 3 0.008 Seriphus politus queenfish 2 0.006 6 0.015
3 Anchoa delicatissima slough anchovy 1 0.003

Atherinops affinis topsmelt 2 0.018 Citharichthys stigmaeus speckled sanddab 10 0.02 Engraulis mordax northern anchovy 32 0.076 Heterodontus francisci horn shark 1 0.026 Heterostichus rostratus giant kelpfish 1 0.016 Odontopyxis trispinosa pygmy poacher 1 0.001 Paralabrax nebulifer barred sand bass 1 0.247 Pepr ilus simillimus Pacific pompano 2 0.055 Platyrhinoidis triseriata thornback 4 3.285 Pleuronichthys ritteri spotted turbot 1 0.002 Pleuronichthys verticalis hornyhead turbot 2 0.015 Sardinops sagax Pacific sardine 4 0.056 Scorpaena guttata Califor nia scorpionfish 3 0.099 Seriphus politus queenfish 43 0.108 Syngnathus sp pipefish unid 2 0.004 Trachurus symmetricus jack mackerel 1 0.022 Urobatis halleri round stingray 1 0.028 Xenistius californiensis salema 1 0.002 113 4.083

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 -44 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI51 Start Date: December 26, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) 1 Myliobatis californica bat ray 1 0.262

Pleuron ichthys ritteri spotted turbot 1 0.011 Scorpaenichthys marmoratus cabezon 1 0.161 Seriphus politus queenfish 2 0.004 5 0.438
2 Myliobatis californica bat ray 1 0.593

Scorpaena guttata California scorpionfish 1 0.002 Seriphus politus queenfish 1 0.002 3 0.597
3 Anchoa delicatissima slough anchovy 1 0.005

Engraulis mordax northern anchovy 5 0.015 Ophidion scrippsae basketweave cusk

-eel 1 0.055 Paralichthys californicus California halibut 1 0.038 Platyrhinoidis triseriata thornback 1 0.340 Seriphus politus queenfish 19 0.048 28 0.501

### Scattergood Generating Station

IM&E Final Report Appendix E1: Normal Operation Impingement Data - Fish

E1 -45 Scattergood Generating Station - Normal Operation Impingement Data - Fish Survey: SGSFI52 Start Date: January 2, 2007 Survey Totals Unit Taxon Common Name A bundance Biomass (kg) 1 Seriphus politus queenfish 1 0.005 1 0.005
2 Seriphus politus queenfish 1 0.004

Torpedo californica Pacific electric ray 1 9.100 2 9.104 3 Engraulis mordax northern anchovy 1 0.003

Heterostichus rostratus giant kelpfish 1 0.002 Platyrhinoidis triseriata thornback 1 0.794 Seriphus politus queenfish 29 0.146 Anchoa delicatissima slough anchovy 1 0.005 Menticirrhus undulatus California corbina 1 0.204 34 1.154

### Scattergood Generating Station

IM&E Final Report Appendix E2: Velocity Cap Study Impingement Data - Fish

E2-1 Scattergood Generating Station

– Velocity Cap Study Impingement Data

– Fish Survey: VC1 Velocity Cap Imp. Survey Date: October 12, 2006 Normal Flow Direction Survey Totals Unit Taxon Common Name Abundance Biomass (kg) All Atherinops affinis topsmelt 2 0.061

Atherinopsis californiensis jacksmelt 1 0.052 Xenistius californiensis salema 1 0.006 4 0.119 

### Appendix E2. Velocity Cap Study Impingement Data - Fish

### Scattergood Generating Station

IM&E Final Report Appendix E2: Velocity Cap Study Impingement Data - Fish

E2-2 Scattergood Generating Station

– Velocity Cap Study Impingement Data

– Fish Survey: VC2 V elocity Cap Imp. Survey Date: October 13, 2006 Normal Flow Direction Survey Totals Unit Taxon Common Name Abundance Biomass (kg) All Atherinops affinis topsmelt 2 0.028

Torpedo californica Pacific electric ray 1 5.960 3 5.988

### Scattergood Generating Station

IM&E Final Report Appendix E2: Velocity Cap Study Impingement Data - Fish

E2-3 Scattergood Generating Station

– Velocity Cap Study Impingement Data - Fish Survey: VC3 Velocity Cap Imp. Survey Date: October 16, 2006 Normal Flow Direction Survey Totals Unit Taxon Common Name Abundance Biomass (kg) All Atherinops affinis topsmelt 1 0.027

Myliobatis californica bat ray 1 0.603 Sardinops sagax Pacific sardine 1 0.019 3 0.649

### Scattergood Generating Station

IM&E Final Report Appendix E2: Velocity Cap Study Impingement Data - Fish

E2-4 Scattergood Generating Station

– Velocity Cap Study Impingement Data

– Fish Survey: VC4 Velocity Cap Imp. Survey Date: October 17, 2006 Normal Flow Direction Survey Totals Unit Taxon Common Name Abundance Biomass (kg) All Scorpaenichthys marmoratus cabezon 1 0.228

Torpedo californica Pacific electric ray 1 6.050 2 6.278

### Scattergood Generating Station

IM&E Final Report Appendix E2: Velocity Cap Study Impingement Data - Fish

E2-5 Scattergoo

d Generating Station

– Velocity Cap Study Impingement Data

– Fish Survey: VC5 Velocity Cap Imp. Survey Date: October 19, 2006 Normal Flow Direction Survey Totals Unit Taxon Common Name Abundance Biomass (kg) All Platyrhinoidis t riseriata thornback 1 0.030 1 0.030

### Scattergood Generating Station

IM&E Final Report Appendix E2: Velocity Cap Study Impingement Data - Fish

E2-6 Scattergood Generating Station

– Velocity Cap Study Impingement Data - Fish Survey: VC6 Velocity Cap Imp. Survey Date: October 20, 2006 Normal Flow Direction Survey Totals Unit Taxon Common Name Abundance Biomass (kg) All No fish

### Scattergood Generating Station

IM&E Final Report Appendix E2: Velocity Cap Study Impingement Data - Fish

E2-7 Scattergood Generating Station

– Velocity Cap Study Impingement Data

– Fish Survey: VC7 Velocity Cap Imp. Survey Date: October 23, 2006 Normal Flow Direction Survey Totals Unit Taxon Common Name Abundance Biomass (kg) All Chromis punctipinnis blacksmith 1 0.048

Myliobatis californica bat ray 3 0.922 Torpedo californica Pacific electric ray 1 3.550 5 4.520

### Scattergood Generating Station

IM&E Final Report Appendix E2: Velocity Cap Study Impingement Data - Fish

E2-8 Scattergood Generating Station

– Velocity Cap Study Impingement Data

– Fish Survey: VC18 Velocity Cap Imp. Survey Date: November 10, 2006 Normal Flow Direction Survey Totals Unit Taxon Common Name Abundance Biomass (kg) All Atherinops affinis topsmelt 252 6.253

Atherinopsis califo

rniensis jacksmelt 48 4.459 Engraulis mordax northern anchovy 1 0.007 Leuresthes tenuis California grunion 1 0.004 Menticirrhus undulatus California corbina 3 0.706 Myliobatis californica bat ray 48 64.727 Paralabrax nebulifer barred sand bass 2 0.450 Paralichthys californicus California halibut 1 0.004 Sardinops sagax Pacific sardine 54 7.822 Scomber japonicus Pacific chub mackerel 4 0.218 Seriphus politus queenfish 4 0.015 Torpedo californica Pacific electric ray 1 3.800 Trachurus sy

mmetricus jack mackerel 1 0.025 Urobatis halleri round stingray 1 0.411 421 88.901

### Scattergood Generating Station

IM&E Final Report Appendix E2: Velocity Cap Study Impingement Data - Fish

E2-9 Scattergood Generating Station

– Velocity Cap Study Impingement Data

– Fish Survey: VC19 Velocity Cap Imp. Survey Date: November 13, 2006 Normal Flow Direction Survey Totals Unit Taxon Common Name Abundance Biomass (kg) All Atherinopsidae silverside, unid. 113 2.780

Citharichthys stigmaeus speckled sanddab 4 0.016 Embiotocidae surfperch, unid. 1 0.156 Myliobatis californica bat ray 5 18.925 Paralabrax clathratus kelp bass 1 0.102 Pleuronichthys verticalis hornyhead turbot 1 0.006 Porichthys myriaster specklefin midshipman 1 0.275 Sardinops sagax Pacific sardine 94 2.216 Torpedo californica Pacific electric ray 1 3.100 221 27.576

### Scattergood Generating Station

IM&E Final Report Appendix E2: Velocity Cap Study Impingement Data - Fish

E2- 10 Scattergood Generating Station

– Velocity Cap Study Impingement Data

– Fish Survey: VC20 Velocity Cap Imp. Survey Date: November 15, 2006 Normal Flow Direction Survey Totals Unit Taxon Common Name Abundance Biomass (kg) All Atherinopsis californiensis jacksmelt 1 0.087

Sardinops sagax Pacific sardine 1 0.036 Torpedo californica Pacific electric ray 1 4.400 3 4.523

### Scattergood Generating Station

IM&E Final Report Appendix E2: Velocity Cap Study Impingement Data - Fish

E2- 11 Scattergood Generating Station

– Velocity Cap Study Impingement Data

– Fish Su rvey: VC21 Velocity Cap Imp. Survey Date: November 16, 2006 Normal Flow Direction Survey Totals Unit Taxon Common Name Abundance Biomass (kg) All Platyrhinoidis triseriata thornback 1 0.109

Porichthys myriaster specklefin midshipman 1 0.668 2 0.777

### Scattergood Generating Station

IM&E Final Report Appendix E2: Velocity Cap Study Impingement Data - Fish

E2- 12 Scattergood Generating Station

– Velocity Cap Study Impingement Data - Fish Survey: VC22 Velocity Cap Imp. Survey Date: November 17, 2006 Normal Flow Direction Survey Totals Unit Taxon Common Name Abundance Biomass (kg) All No fish

### Scattergood Generating Station

IM&E Final Report Appendix E2: Velocity Cap Study Impingement Data - Fish

E2- 13 Scattergood Generating Station

– Velocity Cap Study Impingement Data

– Fish Survey: VC23 Velocity Cap Imp. Survey Date: November 20, 2006 Normal Flow Direction Survey Totals Unit Taxon Common Na me Abundance Biomass (kg) All Atherinops affinis topsmelt 1 0.017

Atherinopsis californiensis jacksmelt 1 0.119 Sardinops sagax Pacific sardine 1 0.040 Scomber japonicus Pacific chub mackerel 1 0.039 Torpedo californica Pacific electric ray 1 6.000 5 6.215

### Scattergood Generating Station

IM&E Final Report Appendix E2: Velocity Cap Study Impingement Data - Fish

E2- 14 Scattergood Generating Station

– Velocity Cap Study Impingement Data - Fish Survey: VC34 Velocity Cap Imp. Survey Date: December 12, 2006 Normal Flow Direction Survey Totals Unit Taxon Common Name Abundance Biomass (kg) All Anchoa compressa deepbody anchovy 8 0.053

Atherinops affinis topsmelt 603 16.479 Atherinopsis californiensis jacksmelt 822 84.432 Citharichthys stigmaeus speckled sanddab 4 0.022 Embiotoca jacksoni black perch 2 0.154 Engraulis mordax northern anchovy 5 0.017 Genyonemus lineatus white croaker 5 0.551 Heterodontus francisci horn shark 1 0.035 Hyperprosopon argenteum walleye surfperch 4 0.262 Menticirrhus undulatus California corbina 2 0.342 Myliobatis californica ba t ray 4 2.100 Peprilus simillimus Pacific pompano 1 0.054 Platyrhinoidis triseriata thornback 2 1.147 Pleuronichthys ritteri spotted turbot 2 0.091 Pleuronichthys verticalis hornyhead turbot 1 0.126 Porichthys myriaster specklefin midshipman 1 0. 006 Sardinops sagax Pacific sardine 1776 33.198 Scomber japonicus Pacific chub mackerel 22 1.662 Scorpaena guttata California scorpionfish 1 0.001 Seriphus politus queenfish 30 0.98 Torpedo californica Pacific electric ray 3 13.65 Trachurus sym

metricus jack mackerel 4 0.234 Triakis semifasciata leopard shark 1 11.000 Umbrina roncador yellowfin croaker 5 0.766 Xenistius californiensis salema 3 0.136 3312 167.498

### Scattergood Generating Station

IM&E Final Report Appendix E2: Velocity Cap Study Impingement Data - Fish

E2- 15 Scattergood Generating Station

– Velocity Cap Study Impingement Data

– Fish Survey: VC35 Velocity Cap Imp. Survey Date: December 14, 2006 Normal Flow Direction Survey Totals Unit Taxon Common Name Abundance Biomass (kg) All Anchoa compressa deepbody anchovy 1 0.005

Anisotremus davidsonii sargo 1 0.005 Atherinops affinis topsmelt 24 0.539 Atherinopsis californiensis jacksmelt 44 4.896 Citharichthys stigmaeus speckled sanddab 3 0.027 Engraulis mordax northern anchovy 20 0.064 Leuresthes tenuis California grunion 1 0.019 Menticirrhus u

ndulatus California corbina 1 0.002 Ophichthus zophochir yellow snake eel 1 0.202 Pleuronichthys guttulatus diamond turbot 1 0.119 Pleuronichthys ritteri spotted turbot 1 0.009 Sardinops sagax Pacific sardine 50 0.878 Scomber japonicus Pacific ch ub mackerel 1 0.040 Seriphus politus queenfish 74 0.284 Syngnathus californiensis kelp pipefish 1 0.007 Trachurus symmetricus jack mackerel 1 0.032 Umbrina roncador yellowfin croaker 1 0.012 Xenistius californiensis salema 1 0.008 227 7.148

### Scattergood Generating Station

IM&E Final Report Appendix E2: Velocity Cap Study Impingement Data - Fish

E2- 16 Scattergood Generating Station

– Velocity Cap Study Impingement Data

– Fish Survey: VC36 Velocity Cap Imp. Survey Date: December 15, 2006 Normal Flow Direction Survey Totals Unit Taxon Common Name Abundance Biomass (kg) All Anchoa delicatissima slough anchovy 3 0.012

Atherinops affinis topsmelt 20 0.495 Atherinopsis californiensis jacksmelt 37 4.146 Chromis punctipinnis blacksmith 1 0.052 Citharichthys stigmaeus speckled sanddab 41 0.112 Engraulis mordax northern a nchovy 152 0.431 Heterodontus francisci horn shark 2 0.062 Heterostichus rostratus giant kelpfish 1 0.007 Myliobatis californica bat ray 1 0.279 Odontopyxis trispinosa pygmy poacher 1 0.002 Ophichthus zophochir yellow snake eel 1 0.328 Paralichthys californicus California halibut 1 0.014 Parophrys vetulus English sole 2 0.032 Peprilus simillimus Pacific pompano 2 0.057 Platyrhinoidis triseriata thornback 10 3.919 Pleuronichthys guttulatus diamond turbot 4 0.365 Pleuronichthys ritteri s potted turbot 4 0.134 Porichthys myriaster specklefin midshipman 13 0.049 Porichthys notatus plainfin midshipman 1 0.001 Sardinops sagax Pacific sardine 30 0.615 Scomber japonicus Pacific chub mackerel 2 0.087 Scorpaena guttata California scorpionfish 3 0.007 Seriphus politus queenfish 153 0.771 Symphurus atricaudus California tonguefish 1 0.037 Syngnathus californiensis kelp pipefish 3 0.010 Torpedo californica Pacific electric ray 2 18.000 Trachurus symmetricus jack mackerel 1 0.028 Urobatis halleri round stingray 2 0.058 Xenistius californiensis salema 2 0.005 496 30.115

### Scattergood Generating Station

IM&E Final Report Appendix E2: Velocity Cap Study Impingement Data - Fish

E2- 17 Scattergood Generating Station

– Velocity Cap Study Impingement Data - Fish Survey: VC37 Velocity Cap Imp. Survey Date: December 18, 2006 Normal Flow Direction Survey Totals Unit Taxon Common Name Abundance Biomass (kg) All Citharichthys stigmaeus speckled sanddab 1 0.002

Engraulis mordax northern anchovy 3 0.008 Parophrys vetulus English sole 1 0.110 Sardinops sagax Pacifi c sardine 4 0.074 Seriphus politus queenfish 4 0.035 Syngnathus californiensis kelp pipefish 2 0.007 15 0.236

### Scattergood Generating Station

IM&E Final Report Appendix E2: Velocity Cap Study Impingement Data - Fish

E2- 18 Scattergood Generating Station

– Velocity Cap Study Impingement Data - Fish Survey: VC38 Velocity Cap Imp. Survey Date: Dece

mber 19, 2006 Normal Flow Direction Survey Totals Unit Taxon Common Name Abundance Biomass (kg) All Engraulis mordax northern anchovy 2 0.006

Peprilus simillimus Pacific pompano 1 0.025 Pleuronichthys ritteri spotted turbot 1 0.007 Pleuronichthys verticalis hornyhead turbot 1 0.046 Sardinops sagax Pacific sardine 4 0.079 Seriphus politus queenfish 3 0.012 12 0.175

### Scattergood Generating Station

IM&E Final Report Appendix E2: Velocity Cap Study Impingement Data - Fish

E2- 19 Scattergood Generating Station

– Velocity Cap Study Impingement Data - Fish Survey: VC39 Velocity Cap Imp. Survey Date: December 21,2006 Normal Flow Direction Survey Totals Unit Taxon Common Name Abundance Biomass (kg) All Anchoa compressa deepbody anchovy 4 0.016

Citharichthys stigmaeus speckled sanddab 4 0.012 Engraulis mord

ax northern anchovy 48 0.122 Ophichthus zophochir yellow snake eel 1 0.128 Paralichthys californicus California halibut 1 0.050 Peprilus simillimus Pacific pompano 1 0.056 Pleuronichthys ritteri spotted turbot 5 0.052 Sardinops sagax Pacific sardine 4 0.059 Seriphus politus queenfish 39 0.101 Syngnathus californiensis kelp pipefish 2 0.004 Xenistius californiensis salema 1 0.003 110 0.603

### Scattergood Generating Station

IM&E Final Report Appendix E2: Velocity Cap Study Impingement Data - Fish

E2- 20 Scattergood Generating Station

– Velocity Cap Study Impingement Data - Fish Survey: VC40 Velocity Cap Imp. Survey Date: December 22, 2006 Normal Flow Direction Survey Totals Unit Taxon Common Name Abundance Biomass (kg) All Anchoa compressa deepbody anchovy 1 0.003

Citharichthys stigmaeus speckled sanddab 1 0.019 Engraulis mordax northern anchovy 8 0.008 Heterodontus francisci horn shark 1 0.023 Platyrhinoidis triseriata thornback 1 0.381 Pleuronichthys ritteri spotted turbot 3 0.014 Sardinops sagax Pacific sardine 2 0.040 Scorpaenichthys marmoratus cabezon 1 0.031 Seriphus politus queenfish 14 0.031 32 0.550

### Scattergood Generating Station

IM&E Final Report Appendix E2: Velocity Cap Study Impingement Data - Fish

E2- 21 Scattergood Generating Station

– Velocity Cap Study Impingement Data - Fish Survey: VC41 Velocity Cap Imp. Survey Date: December 26, 2006 Normal Flow Direction Survey Tot als Unit Taxon Common Name Abundance Biomass (kg) All Anchoa compressa deepbody anchovy 4 0.026

Anisotremus davidsonii sargo 1 0.007 Atherinops affinis topsmelt 5 0.081 Atherinopsis californiensis jacksmelt 1 0.110 Citharichthys stigmaeus speckled sanddab 4 0.018 Dorosoma petenense threadfin shad 1 0.013 Engraulis mordax northern anchovy 8 0.043 Heterostichus rostratus giant kelpfish 1 0.037 Hyperprosopon argenteum walleye surfperch 1 0.023 Leptocottus armatus Pacific staghorn sculpin 1 0.025 Myliobatis californica bat ray 3 1.669 Ophichthus zophochir yellow snake eel 1 0.134 Paralichthys californicus California halibut 1 0.019 Peprilus simillimus Pacific pompano 8 0.263 Platyrhinoidis triseriata thornback 7 2.471 Pleur onichthys verticalis hornyhead turbot 3 0.060 Sardinops sagax Pacific sardine 5 0.097 Scorpaena guttata California scorpionfish 3 0.210 Seriphus politus queenfish 27 0.392 Torpedo californica Pacific electric ray 7 31.600 92 37.298

### Scattergood Generating Station

IM&E Final Report Appendix E2: Velocity Cap Study Impingement Data - Fish

E2- 22 Sc attergood Generating Station

– Velocity Cap Study Impingement Data - Fish Survey: VC42 Velocity Cap Imp. Survey Date: December 28, 2006 Normal Flow Direction Survey Totals Unit Taxon Common Name Abundance Biomass (kg) All Anchoa com pressa deepbody anchovy 14 0.114 Citharichthys stigmaeus speckled sanddab 38 0.166 Engraulis mordax northern anchovy 19 0.095 Heterodontus francisci horn shark 2 0.050 Heterostichus rostratus giant kelpfish 2 0.024 Hypsoblennius jenkinsi mussel blenny 1 0.002 Leuresthes tenuis California grunion 1 0.025 Menticirrhus undulatus California corbina 1 0.012 Myliobatis californica bat ray 2 0.791 Odontopyxis trispinosa pygmy poacher 6 0.008 Oxyjulis californica senorita 1 0.051 Paralichthys californicus California halibut 2 0.320 Peprilus simillimus Pacific pompano 1 0.028 Platyrhinoidis triseriata thornback 3 1.532 Pleuronichthys ritteri spotted turbot 5 0.075 Pleuronichthys verticalis hornyhead turbot 3 0.138 Porichthys myriaster specklefin midshipman 2 0.234 Seriphus politus queenfish 58 0.216 Symphurus atricaudus California tonguefish 1 0.033 Syngnathus californiensis kelp pipefish 10 0.013 Torpedo californica Pacific electric ray 1 5.850 Urobatis halleri round stingra y 1 0.017

174 9.794

### Scattergood Generating Station

IM&E Final Report Appendix E2: Velocity Cap Study Impingement Data - Fish

E2- 23 Scattergood Generating Station

– Velocity Cap Study Impingement Data - Fish Survey: VC43 Velocity Cap Imp. Survey Date: December 29, 2006 Normal Flow Direction Survey Totals Unit Taxon Common Name Abundance Biomass (kg) All Anchoa compressa deepbody anchovy 22 0.095

Atherinops affinis topsmelt 2 0.039 Citharichthys stigmaeus speckled sanddab 7 0.052 Engraulis mordax northern anchovy 11 0.040 Gymnura marmorata California butterfly ray 1 0.184 Heterodontus francisci horn shark 2 0.068 Heterostichus rostratus giant kelpfish 1 0.011 Leptocottus armatus Pacific staghorn sculpin 1 0.010 Myliobatis californica bat ray 2 0.657 Ophidion scrippsae basketweave cusk

-eel 3 0.129 Paralabrax clathratus kelp bass 1 0.004 Platyrhinoidis triseriata thornback 2 1.031 Pleuronichthys ritteri spotted turbot 1 0.010 Pleuronichthys verticalis hornyhead turbot 1 0.059 Seriphus politus queenfish 36 0.230 Syngnathus pipefish unid 1 0.001 Torpedo californica Pacific electric ray 9 64.900 Urobatis halleri round stingray 2 0.206 Xenistius californiensis salema 1 0.003 106 67.729

### Scattergood Generating Station

IM&E Final Report Appendix E2: Velocity Cap Study Impingement Data - Fish

E2- 24 Scattergood Generating Station

– Velocity Cap Study Impingement Data - Fish Survey: VC44 Velocity Cap Imp. Survey Date: January 1, 2007 Normal Flow Direction Survey Totals Unit Taxon Common Name Abundance Biomass (kg) All Engraulis mordax northern anchovy 2 0.005

Heterostichus rostratus giant kelpfish 1 0.014 Myliobatis californica bat ray 4 2.127 Platyrhinoidis triseriata thornback 2 1.445 Pleuronichthys ritteri spotted turbot 2 0.011 Sardinops sagax Pacific sardine 1 0.010 Seriphus politus queenfish 10 0.045 Syngnathus californiensis kelp pipefish 2 0.010 Torpedo cali

fornica Pacific electric ray 6 48.920 Urobatis halleri round stingray 1 0.025 31 52.612

### Scattergood Generating Station

IM&E Final Report Appendix E3: Heat Treatment Impingement Data - Fish

E3-1 Scatergood Generating Station - Heat Treatment Impingement Data - Fish Survey: SGSHT1 Date: Jan

uary 25, 2006 Survey Totals Taxon Common Name Abundance Biomass (kg) Seriphus politus queenfish 20,984 441.399 Engraulis mordax northern anchovy 4,784 33.987 Hyperprosopon argenteum walleye surfperch 2,829 135.932 Peprilus simillimus Pacific pompano 1,346 25.464 Genyonemus lineatus white croaker 1,293 150.628 Atherinopsis californiensis jacksmelt 456 50.773 Atherinops affinis topsmelt 322 11.677 Paralabrax nebulifer barred sand bass 62 24.63 Embiotoca jacksoni black perch 60 6.142 Menticirrhus undulatus California corbina 55 8.027 Chromis punctipinnis blacksmith 46 7.68 Hypsoblennius gilberti rockpool blenny 45 0.669 Rhacochilus toxotes rubberlip seaperch 36 7.037 Cheilotrema saturnum black croaker 35 2.4 Pleuronichthys ritteri spotted turbot 35 4.544 Sebastes auriculatus brown rockfish 26 10.016 Halichoeres semicinctus rock wrasse 20 2.776 Oxyjulis californica senorita 19 0.429 Atractoscion nobilis white seabass 17 3.298 Chilara taylori spotted cusk

-eel 13 0.214 Platyrhinoidis triseriata thornback 13 7.082 Urobatis halleri round stingray 13 4.442 Brachyistius frenatus kelp perch 12 0.319 Sardinops sagax Pacific sardine 10 0.617 Umbrina roncador yellowfin croaker 10 1.308 Heterostichus rostratus giant kelpfish 8 0.451 Rhacochilus vacca pile perch 8 1.896 Scorpaena guttata California scorpionfish 8 0.882 Paralichthys californicus California halibut 6 1.008 Anisotremus davidsonii Sargo 5 0.04 Xenistius californiensis Salema 5 0.086 Gi rella nigricans Opaleye 4 3.731 Oxylebius pictus painted greenling 4 0.164 Paralabrax clathratus kelp bass 4 0.843 Ophidion scrippsae basketweave cusk

-eel 3 0.086 Phanerodon furcatus white seaperch 3 0.154 Pleuronichthys guttulatus diamond turbot 3 0.829 Scorpaenichthys marmoratus Cabezon 2 0.85 (continued on next page) 

### Appendix E3. Heat Treatment Impingement Data - Fish

### Scattergood Generating Station

IM&E Final Report Appendix E3: Heat Treatment Impingement Data - Fish

E3-2 Scatergood Generating Station

– Heat Treatment Impingement Data - Fish Survey: SGSHT1 (Continued) Date: January 25, 2006 Survey Totals

Taxon Comm on Name Abundance Abundance Sebastes rastrelliger grass rockfish 2 1.381 Semicossyphus pulcher Sheephead 2 0.134 Amphistichus argenteus barred surfperch 1 0.051 Branchiostoma californiense California lancelet 1 0.002 Heterodontus francisci horn s hark 1 0.199 Hypsypops rubicundus Garibaldi 1 0.436 Mustelus henlei brown smoothhound 1 0.296 Ophichthus zophochir yellow snake eel 1 0.144 Rathbunella alleni stripefin ronquil 1 0.007 Scomber japonicus Pacific chub mackerel 1 0.111 Sebastes chrysomelas black

-and

-yellow rockfish 1 0.165 Syngnathus californiensis kelp pipefish 1 0.004 32,618 955.44

### Scattergood Generating Station

IM&E Final Report Appendix E3: Heat Treatment Impingement Data - Fish

E3-3 Scatergood Generating Station - Heat Treatment Impingement Data - Fish Survey: SGSHT2 Date: August 10, 2006 Survey Totals

Taxon Common Name Abundance Biomass (kg) Atherinops affinis topsmelt 79 2.098 Atherinopsis californiensis jacksmelt 1 0.061 Embiotoca jacksoni black perch 8 0.213 Myliobatis californica bat ray 1 1.711 Paralabrax clathratus kelp bass 4 0.753 Rhacochilus toxotes rubberlip seaperch 1 0.018 Sardinops sagax Pacific sardine 28 0.957 Scorpaena guttata California scorpionfish 1 0.125 Scorpaenichthys marmoratus cabezon 4 0.613 Sebastes auriculatus brown rockfish 4 2.421 Seriphus politus queenfish 4 0.138 Trachurus symmetricus jack mackerel 37 1.122 Urobatis halleri round stingray 1 0.339 Xenistius californiensis salema 1 0.085 174 10.654

### Scattergood Generating Station

IM&E Final Report Appendix E3: Heat Treatment Impingement Data - Fish

E3-4 Scatergood Generating Station - Heat Treatment Impingement Data - Fish Sur vey: SGSHT3 Date: August 15, 2006 Survey Totals

Taxon Common Name Abundance Biomass (kg) Artedius corallinus coralline sculpin 1 0.003 Atherinops affinis topsmelt 783 22.832 Atherinopsis californiensis jacksmelt 785 106.928 Chro mis punctipinnis blacksmith 1 0.076 Cymatogaster aggregata shiner perch 194 1.567 Embiotoca jacksoni black perch 7 0.133 Engraulis mordax northern anchovy 2,048 4.874 Hermosilla azurea zebraperch 1 0.003 Hyperprosopon argenteum walleye surfperch 34 0.658 Hypsoblennius gilberti rockpool blenny 5 0.026 Leuresthes tenuis California grunion 1 0.016 Medialuna californiensis halfmoon 1 0.103 Myliobatis californica bat ray 164 180.717 Oxyjulis californica senorita 1 0.02 Paralabrax clathratus kelp bass 6 0.943 Paralabrax nebulifer barred sand bass 9 2.769 Phanerodon furcatus white seaperch 16 0.925 Sardinops sagax Pacific sardine 13,689 521.538 Scomber japonicus Pacific chub mackerel 2 0.117 Scorpaena guttata California scorpionfish 1 0.1 Sebastes auriculatus brown rockfish 1 0.157 Seriphus politus queenfish 9 0.226 Sphyraena argentea Pacific barracuda 4 0.338 Syngnathus californiensis kelp pipefish 2 0.002 Trachurus symmetricus jack mackerel 6 0.165 Urobatis halleri round stingray 1 0.484 Xenistius californiensis salema 1 0.094 17,773 845.814

### Scattergood Generating Station

IM&E Final Report Appendix E3: Heat Treatment Impingement Data - Fish

E3-5 Scatergood Generating Station - Heat Treatment Impingement Data - Fish Survey: SGSHT4 Date: October 4, 2006 Survey Totals

Taxon Common Name Abundance Biomass (kg) Anisotremus davidsonii sargo 2 0.014 Atherinops affinis topsmelt 49 2.148 Cheilotrema saturnum black croaker 9 0.987 Chromis punctipinnis blacksmith 4 0.018 Cymatogaster aggregata shiner perch 2 0.016 Embiotoca jacksoni black perch 39 2.49 Halichoeres semicinctus rock wrasse 4 0.731 Hyperprosopon argenteum walleye surfperch 3 0.087 Hypsoblennius gilberti rockpool blenny 10 0.02 Myliobatis californica bat ray 10 17.276 Oxylebius pictus painted greenling 3 0.122 Paralabrax clathratus kelp bass 68 2.621 Paralabrax nebulifer barred sand bass 13 3.313 Phanerodon furcatus white seaperch 3 0.216 Rhacochilus toxotes rubberlip seaperch 7 0.28 Sardinops sagax Pacific sardine 7,595 341.706 Scomber japonicus Pacific chub mackerel 2 0.085 Scorpaena guttata California scorpionfish 4 1.006 Scorpaenichthys marmoratus cabezon 3 0.517 Sebastes auriculatus brown rockfish 3 1.195 Seriphus politus queenfish 9 0.142 Torpedo californica Pacific electric ray 1 10.4 T rachurus symmetricus jack mackerel 35 1.925 Urobatis halleri round stingray 13 8.226 Xenistius californiensis Salema 2 0.121 7,893 395.662

### Scattergood Generating Station

IM&E Final Report Appendix E3: Heat Treatment Impingement Data - Fish

E3-6 Scattergood Generating Station

– Velocity Cap Study Impingement Data - Fish Survey: VCHT1 Heat Treatment IM Survey Date: October 23, 2006 Normal Flow Direction Survey Totals

Taxon Common Name Abundance Biomass (kg) Atherinops affinis topsmelt 48 1.507 Cheilotrema saturnum black croaker 10 0.407 Chromis punctipinnis blacksmith 1 0.001 Embiotoca jacksoni black perch 15 0.707 Engraulis mordax northern anchovy 81 0.323 Myliobatis californica bat ray 2 1.164 Paralabrax clathratus kelp bass 3 0.278 Paralabrax nebulifer barred sand bass 5 0.811 Phanerodon furcatus white seape rch 2 0.025 Rhacochilus toxotes rubberlip seaperch 1 0.050 Sardinops sagax Pacific sardine 607 16.407 Scomber japonicus Pacific chub mackerel 2 0.197 Scorpaena guttata California scorpionfish 3 0.943 Scorpaenichthys marmoratus cabezon 1 0.122 Seriphus politus queenfish 121 0.576 Torpedo californica Pacific electric ray 1 8.600 Trachurus symmetricus jack mackerel 1 0.024 Urobatis halleri round stingray 1 1.095 Xenistius californiensis salema 106 0.242 1011 33.479

### Scattergood Generating Station

IM&E Final Report Appendix E3: Heat Treatment Impingement Data - Fish

E3-7 Scattergood Generating Station

– Velocity Cap Study Impingement Data - Fish Survey: VCHT3 Heat Treatment IM Survey Date: November 20, 2006 Normal Flow Direction Survey Totals

Taxon Common Name Abundance Biomass (kg) Anchoa compressa deepbody anchovy 2 0.009 Anisotremus davidsonii sargo 3 0.024 Atherinops affinis topsmelt 95 2.732 Atherinopsis californiensis jacksmelt 2 0.295 Cheilotrema saturnum black croaker 9 0.375 Chromis punctipinnis blacksmith 1 0.055 Citharichthys stigmaeus speck led sanddab 1 0.029 Cymatogaster aggregata shiner perch 2 0.023 Embiotoca jacksoni black perch 5 0.275 Engraulis mordax northern anchovy 7 0.033 Genyonemus lineatus white croaker 1 0.075 Heterostichus rostratus giant kelpfish 1 0.004 Myliobatis californica bat ray 1 0.232 Paralabrax clathratus kelp bass 8 0.685 Paralabrax nebulifer barred sand bass 7 1.794 Paralichthys californicus California halibut 1 0.027 Phanerodon furcatus white seaperch 2 0.058 Pleuronichthys ritteri spotted turbot 1 0.034 Rhacochilus toxotes rubberlip seaperch 3 0.218 Rhacochilus vacca pile perch 6 0.460 Sardinops sagax Pacific sardine 34 0.879 Scomber japonicus Pacific chub mackerel 20 1.433 Scorpaenichthys marmoratus cabezon 1 0.156 Seriphus politus queenfish 136 0.769 Xenistius californiensis salema 46 0.136 395 10.810

### Scattergood Generating Station

IM&E Final Report Appendix E3: Heat Treatment Impingement Data - Fish

E3-8 Scattergood Generating Station

– Velocity Cap Study Impingement Data - Fish Survey: VCHT6 Heat Treatment IM Survey Date: January 3, 2006 Normal Flow Direction Survey Totals

Taxon Common Name Abundance Biomass (kg) Anchoa compressa deepbody anchovy 190 1.153 Anisotremus davidsonii sargo 7 0.066 Atherinops affinis topsmelt 186 6.020 Atherinopsis californiensis jacksmelt 249 24.784 Atractoscion nobilis white seabass 15 1.140 Cheilotrema saturnum black croaker 19 1.272 Chromis punctipinnis blacksmith 4 0.145 Cymatogaster aggregata shiner perch 1 0.015 Embiotoca jacksoni black perch 2 0.438 Engraulis mordax northern anchovy 1222 4.333 Genyonemus lineatus white croaker 103 11.156 Gibbonsia elegans spotted kelpfish 1 0.007 Heterodontus francisci horn shark 1 1.442 Heterostichus rostratus giant kelpfish 2 0.024 Hyperprosopon argenteum walleye surfperch 37 2.127 Hypsoblennius gil

berti rockpool blenny 4 0.040 Hypsoblennius jenkinsi mussel blenny 2 0.007 Leptocottus armatus Pacific staghorn sculpin 2 0.058 Leuresthes tenuis California grunion 3 0.070 Menticirrhus undulatus California corbina 8 0.887 Myliobatis californica bat ray 5 4.004 Oxylebius pictus painted greenling 1 0.021 Paralabrax clathratus kelp bass 11 0.821 Paralabrax nebulifer barred sand bass 11 1.157 Peprilus simillimus Pacific pompano 198 6.197 Phanerodon furcatus white seaperch 7 0.577 Platyrhi noidis triseriata thornback 8 5.408 Pleuronichthys ritteri spotted turbot 8 0.094 Pleuronichthys verticalis hornyhead turbot 1 0.084 Rathbunella alleni stripefin ronquil 1 0.003 Rhacochilus toxotes rubberlip seaperch 9 2.148 Rhacochilus vacca pil e perch 2 0.127 Sardinops sagax Pacific sardine 189 5.851 Scomber japonicus Pacific chub mackerel 7 0.532 Scorpaena guttata California scorpionfish 13 0.169 Scorpaenichthys marmoratus cabezon 6 1.111 (continued on next page)

### Scattergood Generating Station

IM&E Final Report Appendix E3: Heat Treatment Impingement Data - Fish

E3-9 Sc attergood Generating Station

– Velocity Cap Study Impingement Data - Fish Survey: VCHT6 (Continued) Heat Treatment IM Survey Date: January 3, 2006 Normal Flow Direction Survey Totals

Taxon Common Name Abundance Biomass (kg) Seriphus politus queenfish 8165 147.418 Sphyraena argentea Pacific barracuda 1 0.045 Trachurus symmetricus jack mackerel 13 0.437 Umbrina roncador yellowfin croaker 24 1.075 Urobatis halleri round stingray 10 3.766 Xenistius californiensis salema 64 0.263 10812 236.492

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4-1 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI1 Start Date: January 10, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish All Heptacarpus palpator intertidal coastal shrimp 161 0.090

Portunus xantusii Xantus swimming crab 21 0.361 Cancer anthonyi yellow crab 7 0.012 Cancer antennarius Pacific rock crab 5 0.009 Cancer productus red rock crab 2 0.003 Heptacarpus sp coastal shrimp unk 2 0.002 Pachycheles rudis thick claw porcelain crab 2 0.002 Puggetia dalli spined kelp crab 2 0.002 Lophopanopeus bellus blackclaw crestleg crab 1 0.001 Pilumn us spinohirsutus retiring hairy crab 1 0.001 Pinnixa sp pea crab unid 1 0.001 Polyonyx quadriungulatus western tube crab 1 0.001 Pyromaia tuberculata tuberculate pear crab 1 0.001 207 0.486
Non

-Shellfish All Ophioderma panamens e Panama brittle star 6 0.002 Polyorchis penicillatus red jellyfish 6 0.007 Ophiothrix spiculata shiny brittle star 5 0.003 Astropecten armatus spiny sand star 3 0.012 Elthusa californica parasitic isopod (no common name) 3 0.002 Conus calif

ornicus California cone 2 0.003 Aphrodita sp sea mouse 1 0.001 Asterina miniata bat star 1 0.028 Nassarius perpinguis fat western nassa 1 0.001 28 0.059 

### Appendix E4. Normal Operation Impingement Data

– Invertebrates

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4-2 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI2 Start Date: January 17, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1&2 Heptacarpus palpator intertidal coastal shrimp 14 0.011

Portunus xantusii Xantus swimming crab 5 0.1 21 Lophopanopeus bellus blackclaw crestleg crab 2 0.002 Pyromaia tuberculata tuberculate pear crab 2 0.002 Cancer anthonyi yellow crab 1 0.001 Cancer jordani hairy rock crab 1 0.001 Pachycheles holosericus sponge porcelain crab 1 0.001 Pachycheles pubescens pubescent porcelain crab 1 0.001 Pagurus sp hermit crab unid 1 0.001 28 0.141 3 Heptacarpus palpator intertidal coastal shrimp 156 0.084 Portunus xantusii Xantus swimming crab 25 0.653 Cancer antennarius Pacific rock crab 9 0.011 Puggetia dalli spined kelp crab 3 0.004 Cancer anthonyi yellow crab 2 0.002 Octopus bimaculatus/bimaculoides two

-spot octopus 2 0.604 Pachycheles pubescens pubescent porcelain crab 2 0.002 Alpheus clamator twistclaw pistol shrimp 1 0.001 Cancer gracilis graceful crab 1 0.006 Cancer jordani hairy rock crab 1 0.001 Cancer productus red rock crab 1 0.031 Crangon nigromaculata blackspotted bay shrimp 1 0.002 Herbstia parvifrons crevice spider crab 1 0.001 Heter acrypta occidentalis Sandflat elbow crab 1 0.001 Lophopanopeus bellus blackclaw crestleg crab 1 0.001 Pachycheles holosericus sponge porcelain crab 1 0.001 Podochela hemphill hemphill kelp crab 1 0.001 Polyonyx quadriungulatus Western tube crab 1 0.001 Pyromaia tuberculata tuberculate pear crab 1 0.001 211 1.408

### Scattergood Generating Station

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E4-3 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI2 (Continued) Start Date: January 17, 2006 Survey T otals Unit Taxon Common Name Abundance Biomass (kg) Non

-Shellfish 1&2 Astropecten armatus spiny sand star 1 0.002

Astropecten verrilli sand star 1 0.001 Cnidaria sp sea jelly unid 1 0.001 Conus californicus California cone 1 0.005 4 0.009 3 Astropecten armatus spiny sand star 4 0.003 Ophiuroidea unid brittle star unid 3 0.001 Ophiothrix spiculata shiny brittle star 2 0.002 Navanax inermis California aglaja 1 0.006 10 0.012

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4-4 Scattergood Generating Sta tion - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI3 Start Date: January 24, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1&2 Heptacarpus palpator intertidal coastal shrimp 78 0 .072

Pugettia producta northern kelp crab 3 0.008 Lophopanopeus bellus blackclaw crestleg crab 2 0.002 Cancer anthonyi yellow crab 1 0.001 Cancer gracilis graceful crab 1 0.008 Cancer jordani hairy rock crab 1 0.001 Heptacarpus stimpsoni Stimpson coastal shrimp 1 0.001 Pagurus sp hermit crab unid 1 0.001 Pinnixa sp pea crab unid 1 0.001 Pyromaia tuberculata tuberculate pear crab 1 0.001 90 0.096 3 Heptacarpus palpator intertidal coastal shrimp 6 0.006 Octopus bim

aculatus/bimaculoides two

-spot octopus 2 0.473 Pagurus sp hermit crab unid 2 0.002 Portunus xantusii Xantus swimming crab 1 0.005 11 0.486
Non

-Shellfish 1&2 Astropecten armatus spiny sand star 6 0.035

Conus californicus California cone 2 0.002 Amphissa versicolor variegate amphissa 1 0.001 Gastropoda unid unknown nudibranch 1 0.001 Haminoea virescens green glassy bubble 1 0.001 Kelletia kelletii Kellet's whelk 1 0.001 Ophiuroidea unid brittle star unid 1 0.001 Pteropurpura festiva festive murex 1 0.003 14 0.045 3 Conus californicus California cone 2 0.004 Astropecten armatus spiny sand star 1 0.004 3 0.008

### Scattergood Generating Station

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E4-5 Scattergood Generating Station - Normal Operation Impingement Data

– Inver tebrate Survey: SGSFI4 Start Date: January 31, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1&2 Portunus xantusii Xantus swimming crab 10 0.112

Crangon nigromaculata blackspotted bay shrimp 5 0.010 Cancer anthonyi yellow crab 4 0.004 Lophopanopeus bellus blackclaw crestleg crab 1 0.001 Pinnixa sp pea crab unid 1 0.001 21 0.128 3 Pinnixa sp pea crab unid 26 0.011 Portunus xantusii Xantus swimming crab 7 0.187 Crango n nigromaculata blackspotted bay shrimp 5 0.009 Cancer antennarius Pacific rock crab 2 0.006 Heptacarpus palpator intertidal coastal shrimp 1 0.001 Lophopanopeus bellus blackclaw crestleg crab 1 0.001 Pachycheles pubescens pubescent porcelain crab 1 0.001 Pilumnus spinohirsutus retiring hairy crab 1 0.001 44 0.217
Non

-Shellfish 1&2 Astropecten armatus spiny sand star 1 0.001

Polyorchis penicillatus red jellyfish 1 0.010 2 0.011 3 Aeolidia papillosa shag

-r ug aeolis 1 0.001 1 0.001

### Scattergood Generating Station

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E4-6 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI5 Start Date: February 7, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shel lfish 1&2 Portunus xantusii Xantus swimming crab 3 0.011

Cancer antennarius Pacific rock crab 2 0.003 Heptacarpus palpator intertidal coastal shrimp 2 0.002 Cancer anthonyi yellow crab 1 0.002 Pinnixa sp pea crab unid 1 0.001 Pugettia producta northern kelp crab 1 0.003 10 0.022 3 Portunus xantusii Xantus swimming crab 20 0.459 Pinnixa sp pea crab unid 5 0.004 Cancer antennarius Pacific rock crab 3 0.005 Cancer gracilis graceful crab 1 0.007 29 0.475
Non

-Shellfish 3 Salpa sp salp unid 1 0.001 1 0.001

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4-7 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI6 Start Date: February 14, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1&2 No shellfish

3 Portunus xantusii Xantus swimming crab 5 0.107 Cancer antennarius Pacific rock crab 4 0.004 Heptacarpus palpator intertidal coastal shrimp 1 0.001 Octopus bimaculatus/bi

maculoides two

-spot octopus 1 0.471 Paraxanthias taylori lumpy rubble crab 1 0.001 Pugettia producta northern kelp crab 1 0.002 13 0.586
Non

-Shellfish 3 Hermissenda crassicornis opalescent nudibranch 1 0.001 1 0.001

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4-8 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI7 Start Date: February 21, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1&2 Heptacarpus palpator intertidal coastal shrimp 7 0.007

Portunus xantusii Xantus swimming crab 3 0.012 Crangon nigromaculata blackspotted bay shrimp 1 0.004 Lophopanopeus bellus blackclaw crestleg crab 1 0.001 Octopus bimaculatus/bimaculoides two

-spot octopus 1 0.349 Pinnixa sp pea crab unid 1 0.001 Pugettia producta northern kelp crab 1 0.001 15 0.375 3 Portunus xantusii Xantus swimming crab 13 0.174 Crangon nigromaculata blackspotted bay shrimp 8 0.025 Heptacarpus palpator intertidal coastal shrimp 3 0.003 Cancer antennarius Pacific rock crab 2 0.003 Octopus bimaculatus/bimaculoides two

-spot octopus 1 0.057 Panulirus interruptus California spiny lobster 1 0.457 Pinnixa sp pea crab unid 1 0.001 29 0.720
Non

-Shellfish 1&2 Aeolididae unid unk aeolid nudibranch 1 0.001

Cnidaria sp sea jelly unid 1 0.002 Hermissenda crassicornis opalescent nudibranch 1 0.001 3 0.004 3 Dendronotus frondosus leafy dendronotid 4 0.003 Polyorchis penicillatus red jellyfish 1 0.001 5 0.004

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4-9 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI8 Start Date: February 28, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Sh ellfish 1&2 Crangon nigromaculata blackspotted bay shrimp 11 0.028

Portunus xantusii Xantus swimming crab 10 0.161 Octopus bimaculatus/bimaculoides two

-spot octopus 5 0.651 Lophopanopeus bellus blackclaw crestleg crab 3 0.001 Pinnixa sp pea crab unid 2 0.001 Cancer antennarius Pacific rock crab 1 0.019 Cancer anthonyi yellow crab 1 0.004 Pinnixa tomentosa pea crab 2 (no common name) 1 0.001 34 0.866 3 Portunus xantusii Xantus swimming crab 12 0.213 Pinnixa sp pe a crab unid 11 0.004 Crangon nigromaculata blackspotted bay shrimp 6 0.017 Heptacarpus palpator intertidal coastal shrimp 3 0.002 Octopus bimaculatus/bimaculoides two

-spot octopus 3 1.047 Lophopanopeus bellus blackclaw crestleg crab 2 0.001 Lepidopa californica California mole crab 1 0.016 Neotrypaea gigas giant ghost shrimp 1 0.015 Pugettia sp unk kelp crab 1 0.002 40 1.317
Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 10 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI9 Start Date: March 7, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 Heptacarpus palpator intertidal coastal shrimp 6 0.005

Loligo opalescens California m arket squid 5 0.061 Portunus xantusii Xantus swimming crab 4 0.044 Cancer jordani hairy rock crab 1 0.001 Crangon nigromaculata blackspotted bay shrimp 1 0.003 17 0.114 2 Crangon nigromaculata blackspotted bay shrimp 9 0.031 Heptacarpus palpator intertidal coastal shrimp 5 0.005 Loligo opalescens California market squid 2 0.057 Lophopanopeus bellus blackclaw crestleg crab 2 0.003 Loxorhynchus crispatus moss crab 2 0.097 Panulirus interruptus California spiny lobster 2 0.587 Portunus xantusii Xantus swimming crab 2 0.002 Cancer antennarius Pacific rock crab 1 0.008 Pinnixa sp pea crab unid 1 0.001 Scyra acutifrons sharpnose crab 1 0.003 27 0.794 3 Crangon nigromaculata blackspotted bay shrimp 42 0.087 Portunus xantusii Xantus swimming crab 12 0.237 Loligo opalescens California market squid 10 0.229 Heptacarpus palpator intertidal coastal shrimp 6 0.005 Cancer anthonyi yellow crab 2 0.003 Lophopanopeus bellus blackclaw crestleg cra b 2 0.002 Cancer jordani hairy rock crab 1 0.004 Loxorhynchus grandis sheep crab 1 0.637 Lysmata californica red rock shrimp 1 0.001 Pinnixa sp pea crab unid 1 0.001 78 1.206
Non

-Shellfish 3 Chrysaora colorata purple

-striped jellyfish 1 0.220 1 0.220

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 11 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI10 Start Date: March 14, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shel lfish 1 Heptacarpus palpator intertidal coastal shrimp 12 0.008

Loligo opalescens California market squid 2 0.050 Cancer antennarius Pacific rock crab 1 0.003 Cancer productus red rock crab 1 0.010 Crangon nigromaculata blackspotted bay shrimp 1 0.002 Pinnixa sp pea crab unid 1 0.001 18 0.074 2 Heptacarpus palpator intertidal coastal shrimp 3 0.002 Cancer anthonyi yellow crab 2 0.001 Crangon nigromaculata blackspotted bay shrimp 1 0.002 Loligo opalescens California market squid 1 0.028 Portunus xantusii Xantus swimming crab 1 0.008 8 0.041 3 Heptacarpus palpator intertidal coastal shrimp 22 0.015 Loligo opalescens California market squid 13 0.342 Pinnixa sp pea crab unid 5 0.003 Cancer antennarius Pacific rock crab 2 0.004 Cancer productus red rock crab 1 0.004 Crangon nigromaculata blackspotted bay shrimp 1 0.002 Lophopanopeus bellus blackclaw crestleg crab 1 0.001 Portunus xantusii Xantus swimming crab 1 0.026 Pugettia pr

oducta northern kelp crab 1 0.009 47 0.406
Non

-Shellfish 1 Hermissenda crassicornis opalescent nudibranch 2 0.001 2 0.001 3 Hermissenda crassicornis opalescent nudibranch 4 0.002 Chrysaora colorata purple

-striped jellyf ish 1 1.191

5 1.193

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 12 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI11 Start Date: March 21, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 Crangon nigromaculata blackspotted bay shrimp 6 0.013

Heptacarpus palpator intertidal coastal shrimp 6 0.005 Cancer antennarius Pacific rock crab 3 0.092 Portunus xantusii Xantus swimming crab 1 0.012 16 0.122 2 Crangon nigro

maculata blackspotted bay shrimp 9 0.019 Pinnixa tomentosa pea crab 2 (no common name) 8 0.003 Cancer anthonyi yellow crab 4 0.009 Portunus xantusii Xantus swimming crab 3 0.078 Cancer productus red rock crab 1 0.001 Loligo opalescens Califo rnia market squid 1 0.024 Lophopanopeus bellus blackclaw crestleg crab 1 0.001 Pagurus redondoensis unnamed hermit crab 1 0.001 Pyromaia tuberculata tuberculate pear crab 1 0.001 29 0.137 3 Crangon nigromaculata blackspotted bay shrimp 46 0.092 Heptacarpus palpator intertidal coastal shrimp 15 0.009 Portunus xantusii Xantus swimming crab 5 0.066 Cancer antennarius Pacific rock crab 2 0.010 Lophopanopeus bellus blackclaw crestleg crab 1 0.002 Loxorhynchus grandis sheep crab 1 0.556 Pinnixa tomentosa pea crab 2 (no common name) 1 0.001 71 0.736
Non

-Shellfish 1 Hermissenda crassicornis opalescent nudibranch 8 0.003 8 0.003 2 Hermissenda crassicornis opalescent nudibranch 5 0.002 5 0.002 3 Hermissenda crassicornis opalescent nudibranch 62 0.019 Polyorchis penicillatus red jellyfish 1 0.001 63 0.020

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 13 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI12 Start Date: March 28, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 Crangon nigromaculata blackspotted bay shrimp 2 0.006

Cancer antennarius Pacific rock crab 1 0.004 Cancer anthonyi yellow crab 1 0 .002 4 0.012 1&2 Heptacarpus palpator intertidal coastal shrimp 9 0.009 Cancer antennarius Pacific rock crab 3 0.005 Crangon nigromaculata blackspotted bay shrimp 1 0.001 Lysmata californica red rock shrimp 1 0.001 14 0.016 3 Heptacarpus palpator intertidal coastal shrimp 14 0.01 Cancer anthonyi yellow crab 3 0.037 Crangon nigromaculata blackspotted bay shrimp 2 0.003 Cancer antennarius Pacific rock crab 1 0.001 Loxorhynchus grandis sheep crab 1 0.65 Octopus bimaculatus/bimaculoides two

-spot octopus 1 0.181 Panulirus interruptus California spiny lobster 1 0.6 Portunus xantusii Xantus swimming crab 1 0.026 24 1.508
Non

-Shellfish 1 Hermissenda crassicornis opalescent nudibranch 81 0. 021

Polyorchis penicillatus red jellyfish 9 0.024 Heptacarpus palpator intertidal coastal shrimp 7 0.003 Pinnixa sp pea crab unid 1 0.001 98 0.049 1&2 Leptopecten sp scallop unid 26 0.005 Polyorchis penicillatus red jellyfish 1 0. 002 27 0.007 3 Hermissenda crassicornis opalescent nudibranch 165 0.065 Polyorchis penicillatus red jellyfish 12 0.017 177 0.082

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 14 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI13 Start Date: April 4, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 Heptacarpus palpator intertidal coastal shrimp 6 0.002

Cancer anthonyi yellow crab 4 0.013 Cancer jordani hairy rock crab 3 0.009 Crangon nigromaculata blackspotted bay shrimp 3 0.012 Panulirus interruptus California spiny lobster 3 1.374 Pugettia producta northern kelp crab 1 0.017 20 1.427 2 Heptacarpus palpator intertidal coastal shrimp 9 0.006 Cancer anthonyi yellow crab 4 0.007 Crangon nigromaculata blackspotted bay shrimp 2 0.006 Cancer antennarius Pacific rock crab 1 0.031 Loxorhynchus crispatus moss crab 1 0.173 Octopus bimaculatus/bimaculoides two

-spot octopus 1 0.190 Octo pus rubescens red octopus 1 0.001 Panulirus interruptus California spiny lobster 1 0.655 Pinnixa sp pea crab unid 1 0.001 21 1.070 3 Cancer anthonyi yellow crab 17 0.027 Heptacarpus palpator intertidal coastal shrimp 10 0.010 Cancer jordani hairy rock crab 5 0.014 Crangon nigromaculata blackspotted bay shrimp 3 0.009 Lophopanopeus bellus blackclaw crestleg crab 2 0.010 Portunus xantusii Xantus swimming crab 2 0.054 Cancer productus red rock crab 1 0.001 Lysmata cali

fornica red rock shrimp 1 0.001 41 0.126
Non

-Shellfish 1 Hermissenda crassicornis opalescent nudibranch 88 0.052

Polyorchis penicillatus red jellyfish 6 0.043 94 0.095 2 Hermissenda crassicornis opalescent nudibranch 23 0.010 Polyorchis penicillatus red jellyfish 5 0.006 28 0.016

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 15 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI13 (Continued) Start Date: April 4, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Non

-Shellfish 3 Hermissenda crassicornis opalescent nudibranch 79 0.039

Polyorchis penicillatus red jellyfish 34 0.113 Leptopecten sp scallop unid 2 0.004 115 0.156

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 16 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI14 Start Date: April 11, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 Cancer jordani hairy rock crab 34 0.074

He ptacarpus palpator intertidal coastal shrimp 14 0.006 Cancer anthonyi yellow crab 4 0.019 Cancer productus red rock crab 3 0.009 Cancer antennarius Pacific rock crab 2 0.025 Cancer gracilis graceful crab 2 0.009 Loxorhynchus grandis sheep crab 2 1.595 Lysmata californica red rock shrimp 2 0.001 Loligo opalescens California market squid 1 0.084 Portunus xantusii Xantus swimming crab 1 0.026 Pyromaia tuberculata tuberculate pear crab 1 0.001 66 1.849 2 Cancer jordani h airy rock crab 34 0.087 Heptacarpus palpator intertidal coastal shrimp 21 0.011 Cancer antennarius Pacific rock crab 14 0.043 Loligo opalescens California market squid 5 0.203 Cancer productus red rock crab 3 0.009 Cancer anthonyi yellow cra b 2 0.019 Lysmata californica red rock shrimp 2 0.001 Cancer gracilis graceful crab 1 0.012 Loxorhynchus grandis sheep crab 1 0.460 Pachygrapsus crassipes striped shore crab 1 0.039 Portunus xantusii Xantus swimming crab 1 0.015 Pugettia producta northern kelp crab 1 0.004 Pyromaia tuberculata tuberculate pear crab 1 0.001 87 0.904 3 Cancer antennarius Pacific rock crab 40 0.167 Heptacarpus palpator intertidal coastal shrimp 22 0.018 Cancer jordani hairy rock crab 9 0.021 Loligo opalescens California market squid 9 0.122 Portunus xantusii Xantus swimming crab 5 0.058 Cancer anthonyi yellow crab 4 0.038 Lysmata californica red rock shrimp 4 0.002 (continued on next page)

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 17 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI14 (Continued) Start Date: April 11, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 3 (Continued)

Cancer productus red rock crab 3 0.006 Crangon nigromaculata blackspotted bay shrimp 2 0.003 Lophopanopeus bellus blackclaw crestleg crab 2 0.004 Pugettia producta northern kelp crab 2 0.008 Pyromaia tuberculata tuberculate pear crab 2 0.002 Loxorhynchus grandis sheep crab 1 1.048 Neotrypaea gigas giant ghost shrimp 1 0.002 Pachygrapsus crassipes striped shore crab 1 0.003 Podochela hemphill hemphill kelp crab 1 0.004 Puggetia dalli spined kelp crab 1 0.001 109 1.507
Non

-Shellfish 1 Hermissenda crassicornis opalescent nudibranch 135 0.051

Polyorchis penicillatus red jellyfish 12 0.041 Navanax inermis California aglaja 1 0.002 148 0.094 2 Hermissenda crassicornis opalescent nudibranch 53 0.017 Polyorchi s penicillatus red jellyfish 6 0.015 Triopha maculata spotted triopha 1 0.001 60 0.033 3 Hermissenda crassicornis opalescent nudibranch 290 0.108 Polyorchis penicillatus red jellyfish 14 0.027 Flabellina trilineata three lined aeolid 1 0.001 Gastropoda unid unknown nudibranch 1 0.003 306 0.139

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 18 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI15 Start Date: April 18, 2006 Survey Totals

Unit Taxon Co mmon Name Abundance Biomass (kg) Shellfish 1 Cancer jordani hairy rock crab 24 0.091

Cancer anthonyi yellow crab 15 0.085 Heptacarpus palpator intertidal coastal shrimp 14 0.008 Crangon nigromaculata blackspotted bay shrimp 5 0.010 Pyromaia tuberculata tuberculate pear crab 2 0.002 Cancer productus red rock crab 1 0.001 Lysmata californica red rock shrimp 1 0.001 Panulirus interruptus California spiny lobster 1 0.157 63 0.355 2 Cancer jordani hairy rock crab 54 0.172 Heptacarpus palpator intertidal coastal shrimp 33 0.016 Cancer anthonyi yellow crab 19 0.095 Crangon nigromaculata blackspotted bay shrimp 12 0.029 Cancer productus red rock crab 5 0.018 Panulirus interruptus California spiny lobster 4 2. 162 Pyromaia tuberculata tuberculate pear crab 3 0.002 Cancer antennarius Pacific rock crab 2 0.046 Lophopanopeus bellus blackclaw crestleg crab 1 0.001 Lysmata californica red rock shrimp 1 0.001 Octopus rubescens red octopus 1 0.001 Pachycheles pubescens pubescent porcelain crab 1 0.001 Portunus xantusii Xantus swimming crab 1 0.032 137 2.576 3 Crangon nigromaculata blackspotted bay shrimp 49 0.070 Cancer jordani hairy rock crab 39 0.135 Heptacarpus palpator inter tidal coastal shrimp 31 0.020 Cancer anthonyi yellow crab 15 0.076 Lysmata californica red rock shrimp 7 0.005 Portunus xantusii Xantus swimming crab 5 0.019 Pyromaia tuberculata tuberculate pear crab 3 0.002 Cancer productus red rock crab 2 0.004 Loxorhynchus grandis sheep crab 2 1.554 Cancer antennarius Pacific rock crab 1 0.038 Pugettia producta northern kelp crab 1 0.011 Loligo opalescens eggs California market squid eggs NA 0.017 155 1.951

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 19 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI15 (Continued) Start Date: April 18, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Non

-Shellfish 1 Polyorchis penicillatus red jellyf ish 91 0.293 Hermissenda crassicornis opalescent nudibranch 22 0.009 113 0.302 2 Polyorchis penicillatus red jellyfish 155 0.620 Hermissenda crassicornis opalescent nudibranch 61 0.021 216 0.641 3 Polyorchis penicillatus r ed jellyfish 245 0.590 Hermissenda crassicornis opalescent nudibranch 99 0.042 Pisaster giganteus giant

- spined sea star 1 1.600 345 2.232

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 20 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI 16 Start Date: April 25, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 Cancer anthonyi yellow crab 8 0.043

Heptacarpus palpator intertidal coastal shrimp 7 0.006 Cancer antennarius Pacific rock crab 6 0.016 Cancer sp rock crab unid 6 0.017 Lysmata californica red rock shrimp 4 0.001 Cancer jordani hairy rock crab 2 0.005 Cancer productus red rock crab 1 0.004 Crangon nigromaculata blackspotted bay shrimp 1 0.004 35 0.096 2 Heptacarpus palpator intertidal coastal shrimp 31 0.011 Cancer antennarius Pacific rock crab 25 0.139 Cancer sp rock crab unid 21 0.124 Pyromaia tuberculata tuberculate pear crab 5 0.004 Crangon nigromaculata blackspotted bay shrimp 3 0.012 Lysmata californica red rock shrimp 3 0.003 Cancer anthonyi yellow crab 2 0.015 Cancer productus red rock crab 2 0.002 Loxorhynchus grandis sheep crab 2 1.868 Cancer gracilis graceful crab 1 0.006 Octopus rubescens red octopus 1 0.001 96 2.185 3 Cancer antennarius Pacific rock crab 53 0.314 Heptacarpus palpator intertidal coastal shrimp 37 0.015 Cancer sp rock crab unid 32 0.127 Crangon nigromaculata blackspotted bay shrimp 21 0.057 Cancer anthonyi yellow crab 17 0.140 Lysmata californica red rock shrimp 16 0.005 Pyromaia tuberculata tuberculate pear crab 14 0.009 Cancer productus red rock crab 6 0.033 Cancer jordani hairy rock crab 4 0.010 Loxorhynchus sp unk moss crab 3 2.501 Portunus xa

ntusii Xantus swimming crab 2 0.048 Lophopanopeus bellus blackclaw crestleg crab 1 0.001 Loxorhynchus grandis sheep crab 1 1.060 207 4.320

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 21 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI16 (Continued) Start Date: April 25, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Non

-Shellfish 1 Hermissenda crassicornis opalescent nudibranch 15 0.005

Polyorchis penicillatus red jellyfish 5 0.014 20 0.019 2 Hermissenda crassicornis opalescent nudibranch 12 0.005 Polyorchis penicillatus red jellyfish 5 0.017 17 0.022 3 Hermissenda crassicornis opalescent nudibranch 48 0.014 Polyorchis penicillatus red jellyfish 8 0.0 23 56 0.037

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 22 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI17 Start Date: May 2, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 Heptacarpus palpator intertidal coastal shrimp 25 0.014

Cancer anthonyi yellow crab 9 0.080 Cancer antennarius Pacific rock crab 7 0.026 Cancer jordani hairy rock crab 5 0.017 Cancer productus red rock crab 5 0.032 Lysmata californica red rock shrimp 5 0.002 Pyromaia tuberculata tuberculate pear crab 2 0.005 Crangon nigromaculata blackspotted bay shrimp 1 0.004 59 0.180 2 Heptacarpus palpator intertidal coastal shrimp 66 0.028 Cancer antennarius Pacific rock crab 30 0.103 Cancer anthonyi yellow crab 14 0.104 Cancer jordani hairy rock crab 9 0.023 Cancer productus red rock crab 7 0.052 Crangon nigromaculata blackspotted bay shrimp 2 0.008 Lysmata californica red rock shrimp 2 0.002 Pyromaia tuberculata tuberculate pear crab 2 0.002 Pachygrapsus crassipes striped shore crab 1 0.004 133 0.326 3 Heptacarpus palpator intertidal coastal shrimp 77 0.038 Cancer antennarius Pacific rock crab 31 0.132 Cancer anthonyi yellow crab 18 0.108 Can cer sp rock crab unid 18 0.055 Cancer jordani hairy rock crab 12 0.037 Cancer productus red rock crab 11 0.082 Lysmata californica red rock shrimp 10 0.005 Pyromaia tuberculata tuberculate pear crab 7 0.006 Portunus xantusii Xantus swimming crab 2 0.039 Cancer amphioetus bigtooth rock crab 1 0.005 Crangon nigromaculata blackspotted bay shrimp 1 0.001 Lophopanopeus bellus blackclaw crestleg crab 1 0.001 Octopus rubescens red octopus 1 0.001 190 0.510

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 23 Scattergood Ge

nerating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI17 (Continued) Start Date: May 2, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Non

-Shellfish 1 Hermissenda crassicornis opalescent nudibranch 15 0.006

Polyorchis penicillatus red jellyfish 2 0.019 Flabellina trilineata three lined aeolid 1 0.001 18 0.026 2 Hermissenda crassicornis opalescent nudibranch 37 0.016 Flabellina trilineata three lined aeolid 5 0.001 Polyorchis penicillatus red jellyfish 2 0.006 Salpa sp salp unid 1 0.056 45 0.079 3 Hermissenda crassicornis opalescent nudibranch 46 0.018 Polyorchis penicillatus red jellyfish 2 0.012 Flabellina trilineata three lined aeolid 1 0.001 49 0.031

### Scattergood Generating Station

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E4- 24 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI18 Start Date: May 9, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 None

2 Heptacarpus palpator intertidal coastal shrimp 351 0.139 Cancer jordani hairy rock crab 24 0.056 Cancer anthonyi yellow crab 7 0.066 Pyromaia tuberculata tuberculate pear crab 6 0.006 Cancer antennarius Pacific rock crab 5 0.065 Loxorhynchus grandis sheep crab 3 1.812 Lysmata californica red rock shrimp 3 0.001 Pachycheles rudis thick claw porcelain crab 2 0.001 Cancer productus red rock crab 1 0.001 Octopus rubescens red octopus 1 0.001 403 2.148 3 Heptacarpus palpator intertidal coastal shrimp 194 0.061 Cancer jordani hairy rock crab 24 0.065 Lysmata californica red rock shrimp 13 0.003 Cancer productus red rock crab 10 0.079 Pyromaia tuberculata tuberculate pear crab 7 0.008 Ca ncer antennarius Pacific rock crab 6 0.074 Cancer anthonyi yellow crab 6 0.043 Loxorhynchus grandis sheep crab 1 0.047 Pachygrapsus crassipes striped shore crab 1 0.015 Porcellanidae unid unk porcelain crab 1 0.001 Portunus xantusii Xantus swimming crab 1 0.035 Pugettia producta northern kelp crab 1 0.049 265 0.480
Non

-Shellfish 2 Hermissenda crassicornis opalescent nudibranch 143 0.048

Flabellina trilineata three lined aeolid 15 0.003 Lamellaria diegoensis San Diego ear shell 1 0.003 159 0.054 3 Hermissenda crassicornis opalescent nudibranch 222 0.082 Flabellina trilineata three lined aeolid 66 0.005 Dendronotus frondosus leafy dendronotid 1 0.001 289 0.088

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 25 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI19 Start Date: May 16, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 Heptacarpus palpator intertidal coastal shrimp 186 0. 042

Lysmata californica red rock shrimp 14 0.007 Cancer jordani hairy rock crab 7 0.018 Cancer anthonyi yellow crab 2 0.030 Cancer productus red rock crab 2 0.005 Pyromaia tuberculata tuberculate pear crab 2 0.002 Cancer antennarius Pacific rock crab 1 0.012 214 0.116 2 Heptacarpus palpator intertidal coastal shrimp 511 0.128 Lysmata californica red rock shrimp 11 0.003 Cancer jordani hairy rock crab 5 0.015 Cancer anthonyi yellow crab 3 0.613 Pyromaia tuberculata tuberculate pear crab 3 0.003 Cancer gracilis graceful crab 2 0.096 Pachygrapsus crassipes striped shore crab 2 0.001 Cancer antennarius Pacific rock crab 1 0.029 Cancer productus red rock crab 1 0.001 Panulirus interruptus California spiny lobster 1 0.617 Pugettia producta northern kelp crab 1 0.001 541 1.507 3 Heptacarpus palpator intertidal coastal shrimp 493 0.116 Cancer jordani hairy rock crab 37 0.097 Lysmata californica red rock shrimp 17 0.008 Pyromaia tuber

culata tuberculate pear crab 6 0.017 Cancer productus red rock crab 5 0.011 Cancer anthonyi yellow crab 3 0.014 Cancer antennarius Pacific rock crab 2 0.013 Crangon nigromaculata blackspotted bay shrimp 1 0.001 Octopus bimaculatus/bimaculoid es two

-spot octopus 1 0.288 Portunus xantusii Xantus swimming crab 1 0.024 566 0.589

### Scattergood Generating Station

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E4- 26 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI19 (Continued) Start Date: May 16, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Non

-Shellfish 1 Hermissenda crassicornis opalescent nudibranch 276 0.116

Flabellina trilineata three lined aeolid 20 0.002 Dendronotus frondosus leafy dendronotid 1 0.001 297 0.119 2 Hermissenda crassicornis opalescent nudibranch 291 0.116 Flabellina trilineata three lined aeolid 54 0.003 Dendronotus frondosus leafy dendronotid 9 0.002 354 0.121 3 Hermissenda crassicornis opalescent nudibranch 201 0.091 Flabellina trilineata three lined aeolid 43 0.003 Chrysaora colorata purple

-striped jellyfish 3 4.170 Dendronotus frondosus leafy dendronotid 3 0.001 250 4.265

### Scattergood Generating Station

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E4- 27 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI20 Start Date: May 23, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 Heptacarpus palpator intertidal coastal shrimp 216 0.048

Lysmata californica red rock shrimp 20 0.012 Cancer antennarius Pacific rock crab 2 0.004 Pyromaia tuberculata tuberculate pear crab 2 0.003 Cancer anthonyi yellow crab 1 0.004 Portunus xantusii Xantus swimming crab 1 0.024 242 0.095 2 Heptacarpus palpator intertidal coastal shrimp 890 0.207 Lysmata californica red rock shrimp 52 0.030 Pyromaia tuberculata tuberculate pear crab 5 0.007 Cancer antennarius Pacific rock crab 4 0.011 Cancer productus red rock crab 4 0.027 Cancer jordani hairy rock crab 2 0.003 Portunus xantusii Xantus swimming crab 2 0.019 Cancer gracilis graceful crab 1 0.047 Loxorhynchus grandis sheep crab 1 1.271 Octopus bimaculatus/bimaculoides two

-spot octopus 1 0.003 Octopus rubescens red octopus 1 0.002 Pachygra psus crassipes striped shore crab 1 0.001 Pugettia producta northern kelp crab 1 0.001 965 1.629 3 None
Non

-Shellfish 1 Hermissenda crassicornis opalescent nudibranch 120 0.035

Dendronotus frondosus leafy dendronotid 6 0.002 Flabellina trilineata three lined aeolid 1 0.001 127 0.038 2 Hermissenda crassicornis opalescent nudibranch 157 0.049 Leptopecten sp scallop unid 7 0.045 Flabellina trilineata three lined aeolid 6 0.002 Dendronotus frondosu

s leafy dendronotid 5 0.002 175 0.098

### Scattergood Generating Station

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E4- 28 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI21 Start Date: May 30, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 Heptacarpus palpator intertidal coastal shrimp 126 0.041

Lysmata californica red rock shrimp 37 0.034 Cancer anthonyi yellow crab 8 0.075 Cancer jordani hairy rock crab 3 0.007 Cancer productus red rock crab 2 0.004 P yromaia tuberculata tuberculate pear crab 2 0.008 Loxorhynchus grandis sheep crab 1 0.751 179 0.920 2 Heptacarpus palpator intertidal coastal shrimp 312 0.090 Lysmata californica red rock shrimp 48 0.036 Cancer anthonyi yellow crab 4 0.013 Cancer jordani hairy rock crab 3 0.007 Portunus xantusii Xantus swimming crab 3 0.069 Cancer antennarius Pacific rock crab 2 0.023 Pachycheles pubescens pubescent porcelain crab 2 0.002 Pyromaia tuberculata tuberculate pear crab 2 0.007 Lophopanopeus bellus blackclaw crestleg crab 1 0.001 Pachygrapsus crassipes striped shore crab 1 0.001 Pugettia producta northern kelp crab 1 0.001 379 0.250 3 None
Non

-Shellfish 1 Hermissenda crassicornis opalescent nudibranch 695 0.319 695 0.319 2 Hermissenda crassicornis opalescent nudibranch 785 0.348 Leptopecten sp scallop unid 1 0.002 786 0.350

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 29 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI22 Start Date: June 6, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 Heptacarpus palpator intertidal coastal shrimp 162 0.058

Lysmata californica red rock shrimp 68 0.067 Can cer antennarius Pacific rock crab 10 0.076 Cancer productus red rock crab 9 0.187 Cancer anthonyi yellow crab 3 0.046 Pyromaia tuberculata tuberculate pear crab 3 0.006 Portunus xantusii Xantus swimming crab 1 0.013 256 0.453 2 He

ptacarpus palpator intertidal coastal shrimp 973 0.321 Lysmata californica red rock shrimp 176 0.154 Cancer antennarius Pacific rock crab 12 0.372 Pyromaia tuberculata tuberculate pear crab 9 0.014 Cancer productus red rock crab 8 0.042 Cancer anthonyi yellow crab 6 0.126 Loxorhynchus grandis sheep crab 2 1.570 Pachygrapsus crassipes striped shore crab 2 0.014 Pinnixa sp pea crab unid 2 0.001 Lophopanopeus bellus blackclaw crestleg crab 1 0.004 Pachycheles pubescens pubescent porcelain crab 1 0.001 Portunus xantusii Xantus swimming crab 1 0.035 Puggetia dalli spined kelp crab 1 0.001 1194 2.655 3 None
Non

-Shellfish 1 Hermissenda crassicornis opalescent nudibranch 368 0.108

Leptopecten sp scallop unid 4 0.003 Triopha maculata spotted triopha 1 0.001 373 0.112 2 Hermissenda crassicornis opalescent nudibranch 635 0.254 Leptopecten sp scallop unid 11 0.012 Dendronotus frondosus leafy dendronotid 4 0.001 Triopha macul

ata spotted triopha 1 0.001 651 0.268

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 30 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI23 Start Date: June 13, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 Heptacarpus palpator intertidal coastal shrimp 150 0.053

Lysmata californica red rock shrimp 36 0.043 Cancer antennarius Pacific rock crab 5 0.020 Cancer anthonyi yellow crab 4 0.178 Cancer productus red rock crab 2 0.022 Pugettia producta northern kelp crab 2 0.002 Pyromaia tuberculata tuberculate pear crab 2 0.002 Pachygrapsus crassipes striped shore crab 1 0.001 Panulirus interruptus California spiny lobster 1 1.602 203 1.923 2 Heptacarpus palpator intertidal coastal shrimp 304 0.097 Lysmata californica red rock shrimp 85 0.105 Cancer anthonyi yellow crab 15 0.717 Cancer antennarius Pacific rock crab 11 0.052 Cancer productus red rock crab 6 0.238 Loxorhynchus grandis sheep crab 4 1.685 Pyromaia tuberculata tuberculate pear crab 4 0.005 Portunus xantusii Xantus swimming crab 2 0.029 Pachygrapsus crassipes striped shore crab 1 0.001 Puggetia dalli spined kelp crab 1 0.001 433 2.930 3 None
Non

-Shellfish 1 Hermissenda crassicornis opalescent nudibranch 59 0.014

Dendronotus frondosus leafy dendronotid 1 0.001 60 0.015 2 Hermissenda crassicornis opalescent nudibranch 50 0.013 Doto amyra hammerhead doto 1 0.001 Le ptopecten sp scallop unid 1 0.001 52 0.015

### Scattergood Generating Station

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E4- 31 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI24 Start Date: June 20, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 Heptacarpus palpator intertidal coastal shrimp 76 0.027

Lysmata californica red rock shrimp 54 0.048 Cancer anthonyi yellow crab 20 0.730 Cancer antennarius Pacific rock crab 8 0.055 Cancer productus red rock crab 6 0.229 Pyromaia tuberculata tuberculate pear crab 2 0.006 Cancer jordani hairy rock crab 1 0.005 Loxorhynchus crispatus moss crab 1 0.001 Loxorhynchus grandis sheep crab 1 0.768 Majidae decorator crab unid 1 0.001 Pugettia producta northern kelp crab 1 0.001 171 1.871 2 Heptacarpus palpator intertidal coastal shrimp 324 0.123 Lysmata californica red rock shrimp 92 0.100 Cancer anthonyi yellow crab 23 0.912 Pyromaia tuberculata tuberculate pear crab 11 0.017 Cancer antennarius Pacific rock crab 9 0.116 Cancer productus red rock crab 4 0.096 Pugettia producta northern kelp crab 3 0.002 Cancer jordani hairy rock crab 1 0.003 Octopus bimaculatus/bimaculoides two

-spot octopus 1 0.015 Pachygrapsus crassipes striped shore crab 1 0.009 Porcellanidae unid unk porcelain crab 1 0.001 470 1.394 3 Heptacarpus palpator intertidal coastal shrimp 113 0.049 Cancer anthonyi yellow crab 112 5.560 Lysmata californica red rock shrimp 47 0.052 Ca ncer antennarius Pacific rock crab 34 0.465 Cancer productus red rock crab 20 0.423 Pyromaia tuberculata tuberculate pear crab 11 0.017 Loxorhynchus grandis sheep crab 6 2.467 Cancer jordani hairy rock crab 5 0.023 Portunus xantusii Xantus s wimming crab 4 0.081 Loxorhynchus crispatus moss crab 3 0.111 Puggetia dalli spined kelp crab 1 0.001 356 9.249

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 32 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI24 (Continued) Start Dat e: June 20, 2006 Survey Totals Unit Taxon Common Name Abundance Biomass (kg) Non

-Shellfish 1 Hermissenda crassicornis opalescent nudibranch 17 0.006 17 0.006 2 Hermissenda crassicornis opalescent nudibranch 9 0.004 Leptopecten sp scallop unid 4 0.004 13 0.008 3 Hermissenda crassicornis opalescent nudibranch 17 0.003 Leptopecten sp scallop unid 4 0.003 21 0.006

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 33 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI25 Start Date: June 27, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 Heptacarpus palpator intertidal coastal shrimp 71 0.022

Cancer anthonyi yellow crab 21 1.161 Lys mata californica red rock shrimp 21 0.024 Cancer antennarius Pacific rock crab 9 0.137 Cancer productus red rock crab 7 0.255 Pilumnus spinohirsutus retiring hairy crab 1 0.007 Pugettia producta northern kelp crab 1 0.001 Pyromaia tuberculat

a tuberculate pear crab 1 0.001 132 1.608 2 Heptacarpus palpator intertidal coastal shrimp 249 0.074 Lysmata californica red rock shrimp 63 0.078 Cancer anthonyi yellow crab 17 0.517 Cancer antennarius Pacific rock crab 5 0.199 Ca ncer productus red rock crab 2 0.053 Hemigrapsus nudus purple shore crab 2 0.002 Loxorhynchus grandis sheep crab 2 0.690 Pachycheles pubescens pubescent porcelain crab 2 0.001 Pugettia producta northern kelp crab 2 0.001 Pyromaia tuberculata tuberculate pear crab 2 0.002 Pachygrapsus crassipes striped shore crab 1 0.002 Portunus xantusii Xantus swimming crab 1 0.014 348 1.633 3 Heptacarpus palpator intertidal coastal shrimp 293 0.164 Lysmata californica red rock shrimp 134 0.155 Cancer anthonyi yellow crab 33 1.810 Cancer antennarius Pacific rock crab 14 0.110 Cancer productus red rock crab 9 0.255 Panulirus interruptus California spiny lobster 3 0.276 Octopus bimaculatus/bimaculoides two

-spot octopus 2 0. 237 Porcellanidae unid unk porcelain crab 2 0.001 Pugettia producta northern kelp crab 2 0.002 (continued on next page)

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 34 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrate Survey: SGSFI25 (Continued) Start Date: June 27, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 3 (Continued)

Cancer amphioetus bigtooth rock crab 1 0.001 Cancer sp rock crab unid 1 0.001 Lophopanopeus bellus blackclaw crestleg crab 1 0.001 Portunus xantusii Xantus swimming crab 1 0.029 Pyromaia tuberculata tuberculate pear crab 1 0.003 497 3.045
Non

-Shellfish 2 Hermissenda crassicornis opalescent nudibranch 2 0.002

Leptopecten sp scallop unid 1 0.001 3 0.003 3 Hermissenda crassicornis opalescent nudibranch 18 0.005 Leptopecten sp scallop unid 1 0.001 Scrippsia pacifica giant bell jelly 1 0.032 Triopha maculata spotted triopha 1 0.001 21 0.039

### Scattergood Generating Station

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E4- 35 Scattergo

od Generating Station - Normal Operation Impingement Data

– Invertebrates Survey: SGSFI26 Start Date: July 5, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 Cancer antennarius Pacific rock crab 2 0.03 Cancer anthonyi yellow crab 35 1.587 Cancer jordani hairy rock crab 3 0.011 Cancer productus red rock crab 3 0.122 Heptacarpus palpator intertidal coastal shrimp 51 0.028 Lysmata californica red rock shrimp 35 0.04 Pachycheles pubescens pubescent porcelain crab 1 0.001 Pachycheles rudis thick claw porcelain crab 1 0.001 Pugettia producta northern kelp crab 1 0.001 Pyromaia tuberculata tuberculate pear crab 1 0.001 133 1.822 2 Cancer antennarius Pacific rock crab 2 0.136

Cancer anthonyi yellow crab 27 1.4 Cancer jordani hairy rock crab 1 0.003 Cancer productus red rock crab 8 0.273 Heptacarpus palpator intertidal coastal shrimp 148 0.066 Loxorhynchus crispatus moss crab 2 0.002 Loxorhynchus grandis sheep crab 1 0.898 Lysmata californica red rock shrimp 77 0.087 O. bimaculatus/bimaculoides California two

-spot octopus 1 0.158 Panulirus interruptus California spiny lobster 1 0.998 Pugettia producta northern kelp crab 1 0.001 267 3.886 3 Cancer antennarius Pacific rock crab 4 0.062

Cancer anthonyi yellow crab 89 3.76 Cancer jordani hairy rock crab 2 0.006 Cancer productus red rock crab 13 0.887 Heptacarpus palpator intertidal coastal shrimp 108 0.054 Loxorhynchus grandis sheep crab 3 2.21 Lysmata californica red rock shrimp 71 0.057 O. bimaculatus/bimaculoides California two

-spot octopus 2 0.273 Pachycheles rudis thick claw porcelain crab 1 0.001 Portunus xantusii Xantus swimming crab 1 0.018 Pugettia producta northern kelp crab 2 0.043 Pugettia richii cryptic kelp crab 1 0.001 Pyromaia tuberculata tuberculate pear crab 1 0.001 203 3.545

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 36 Scattergood Generating Station - Normal Operation Impingement Data - Invertebrates Survey: SGSFI26 (Continued) Start Date: July 5, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Non

-Shellfish 1 Hermissenda crassicornis Hermissenda 1 0.001 1 0.001 2 Hermissenda crassicornis Hermissenda 1 0.001

Leptopecten sp scallop unid 1 0.001 2 0.002 3 Hermissenda crassicornis Hermissenda 14 0.003

Leptopecten sp scallop unid 1 0.001 15 0.004

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 37 Scattergood Generating Station - Normal Operation Impingement Data - Invertebrates Survey: SGSFI27 Start Date: July 11, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 Cancer antennarius Pacific rock crab 1 0.166 Cancer anthonyi yellow crab 27 1.319 Cancer jordani hairy rock crab 3 0.009 Cancer productus red rock crab 2 0.05 Heptacarpus palpator intertidal coastal shrimp 55 0.022 Lysmata californica red rock shrimp 11 0.011 Panulirus interruptus California spiny lobster 2 3.499 Puggetia dalli spined kelp crab 1 0.001 102 5.077 2 Cancer antennarius Pacific rock crab 5 0.08

Cancer anthonyi yellow crab 15 0.601 Cancer productus red rock crab 2 0.124 Heptacarpus palpator intertidal coastal shrimp 110 0.044 Lysmata californica red rock shrimp 36 0.047 O. bimaculatus/bimaculoides California two

-spot octopus 1 0.053 Pachycheles pubescens pubescent porcelain crab 2 0.002 Panulirus interruptus California spiny lobster 1 0.207 Portunus xantusii Xantus swimming crab 3 0.064 Pugettia producta northern kelp crab 1 0.001 Puggetia dalli spined kelp crab 1 0.001 Pyromaia tuberculata tuberculate pear crab 1 0.001 178 1.225 3 Cancer antennarius Pacific rock crab 4 0.228

Cancer anthonyi yellow crab 38 1.616 Cancer gracilis graceful crab 3 0.228 Cancer jordani hairy rock crab 2 0.009 Cancer productus red rock crab 4 0.22 Heptacarpus palpator intertidal coastal shrimp 55 0.027 Lysmata californica red rock shrimp 36 0.053 Pachycheles pubescens pubescent porcelain crab 3 0.002 Pachygrapsus crassipes striped shore crab 2 0.004 Panulirus interruptus California spiny lobster 2 0.748 Portunus xantusii Xantus swimming crab 2 0.03 Pugettia producta northern kelp crab 3 0.002 154 3.167

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 38 Scattergood Generating Station - Normal Operation Impingement Data - Invertebrates Survey: SGSFI27 (Continued) Start Date: July 11, 2006 Survey Totals

Unit Taxon Common Name Abundance Abundance Non

-Shell

fish 1 Aeolidia papillosa shag

- rug aeolis 1 0.001 1 0.001 2 Hermissenda crassicornis hermissenda 3 0.002

Leptopecten sp scallop unid 1 0.001 Pisaster giganteus giant

-spined sea star 1 0.964 5 0.967 3 Aeolidia papillosa shag

- rug aeolis 2 0.002

Hermissenda crassicornis hermissenda 3 0.001 Leptopecten sp scallop unid 3 0.002 8 0.005

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 39 Scattergood Generating Station - Normal Operation Impingement Data - Invertebrates Survey: SGSFI28 Start Date: July 18, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 Cancer antennarius Pacific rock crab 1 0.008 Cancer anthonyi yellow crab 31 1.513 Cancer jordani hairy rock crab 2 0.008 Heptacarpus palp ator intertidal coastal shrimp 31 0.018 Loxorhynchus grandis sheep crab 1 0.744 Lysmata californica red rock shrimp 29 0.045 Pachycheles pubescens pubescent porcelain crab 1 0.003 Pugettia producta northern kelp crab 1 0.001 97 2.34 2 Cancer antennarius Pacific rock crab 3 0.982

Cancer anthonyi yellow crab 26 0.608 Cancer jordani hairy rock crab 7 0.027 Cancer productus red rock crab 4 0.17 Cancer sp cancer crab unid 1 0.01 Heptacarpus palpator intertidal coastal shrimp 92 0.044 Lophopanopeus bellus blackclaw crestleg crab 1 0.001 Loxorhynchus grandis sheep crab 1 0.145 Lysmata californica red rock shrimp 49 0.059 Pachycheles pubescens pubescent porcelain crab 2 0.002 Panulirus interruptus California spiny lobster 3 0.907 Portunus xantusii Xantus swimming crab 1 0.018 Pugettia producta northern kelp crab 1 0.001 191 2.974 3 Cancer antennarius Pacific rock crab 8 0.299

Cancer anthonyi yellow crab 108 4.666 Cancer jordani hairy rock crab 9 0.036 Cancer productus red rock crab 20 1.068 Heptacarpus palpator intertidal coastal shrimp 94 0.054 Loxorhynchus crispatus moss crab 1 0.053 Lysmata californica red rock shrimp 64 0.087 O. bimaculatus/bimaculoides California two

-spot octopus 2 0.098 O. rubescens East Pacific red octopus 1 0.059 Pachycheles rudis thick claw porcelain crab 1 0.001 Panulirus interruptus California spiny lobster 2 0.001 Portunus xantusii Xantus swimming crab 1 0.028 Pugettia producta northern kelp crab 1 0.001 312 6.451

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4-40 Scattergood Generating Station - Normal Operation Impingement Data - Invertebrates Survey: SGSFI28 (Continued) Start Date: July 18, 2006 Survey Totals

Unit Taxon Common Name Abundan ce Biomass (kg) Non

-Shellfish 1 Aeolidiidae unid aeolid nudibranch unid 3 0.002 Leptopecten sp scallop unid 1 0.001 4 0.003 2 Aeolidiidae unid aeolid nudibranch unid 6 0.003

Hermissenda crassicornis hermissenda 1 0.001 7 0. 004 3 Aeolidiidae unid aeolid nudibranch unid 5 0.003

Dendronotus frondosus leafy dendronotid 1 0.001 Hermissenda crassicornis hermissenda 1 0.001 Triopha maculata spotted triopha 1 0.001 8 0.006

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4-41 Scattergood Generating Sta tion - Normal Operation Impingement Data - Invertebrates Survey: SGSFI29 Start Date: July 25, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 Cancer antennarius Pacific rock crab 1 0.04 Cancer anthonyi yellow crab 42 2.916 Cancer jordani hairy rock crab 5 0.013 Cancer productus red rock crab 10 0.588 Heptacarpus palpator intertidal coastal shrimp 26 0.016 Lysmata californica red rock shrimp 20 0.026 Portunus xantusii Xantus swimming crab 1 0.016 105 3.615 2 Cancer antennarius Pacific rock crab 3 0.133

Cancer anthonyi yellow crab 50 2.327 Cancer jordani hairy rock crab 4 0.014 Cancer productus red rock crab 5 0.336 Heptacarpus palpator intertidal coas tal shrimp 71 0.035 Lophopanopeus bellus blackclaw crestleg crab 1 0.001 Loxorhynchus grandis sheep crab 1 0.001 Lysmata californica red rock shrimp 42 0.06 Pachycheles pubescens pubescent porcelain crab 6 0.004 Pachygrapsus crassipes striped shore crab 2 0.002 Pugettia producta northern kelp crab 2 0.006 Puggetia dalli spined kelp crab 1 0.001 188 2.92 3 Cancer antennarius Pacific rock crab 9 0.612

Cancer anthonyi yellow crab 82 4.395 Cancer jordani hairy rock crab 11 0.05 Cancer productus red rock crab 15 1.188 Heptacarpus palpator intertidal coastal shrimp 59 0.024 Loxorhynchus grandis sheep crab 1 0.164 Lysmata californica red rock shrimp 62 0.092 O. bimaculatus/bimaculoides California two

-spot octopus 1 0.06 Pachycheles rudis thick claw porcelain crab 2 0.002 Panulirus interruptus California spiny lobster 2 1.236 Portunus xantusii Xantus swimming crab 1 0.023 Pugettia producta northern kelp crab 2 0.002 Pugettia richii cryptic kelp c rab 1 0.001 Pyromaia tuberculata tuberculate pear crab 2 0.002 250 7.851

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4-42 Scattergood Generating Station - Normal Operation Impingement Data - Invertebrates Survey: SGSFI29 (Continued) Start Date: July 25, 2006
Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Non

-Shellfish 1 Aeolidia papillosa shag

- rug aeolis 3 0.002 Leptopecten sp scallop unid 3 0.002 6 0.004 2 Aeolidia papillosa shag

- rug aeolis 1 0.003

Leptopecten sp scallo p unid 1 0.001 2 0.004 3 Aeolidia papillosa shag

- rug aeolis 4 0.003

Hermissenda crassicornis hermissenda 2 0.001 6 0.004

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4-43 Scattergood Generating Station - Normal Operation Impingement Data - Invertebrates Survey: SGSFI30 Start Date: August 1, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 Cancer antennarius Pacific rock crab 2 0.01 Cancer anthonyi yellow crab 21 0.657 Cancer jordani hairy rock crab 1 0.004 Cancer productus red rock crab 4 0.306 Heptacarpus palpator intertidal coastal shrimp 4 0.003 Lysmata californica red rock shrimp 26 0.048 O. bimaculatus/bimaculoides California two

-spot octopus 1 0.214 Pachycheles pubescens pubescent porcelain crab 2 0.002 Pugettia producta northern kelp crab 2 0.003 63 1.247 2 Cancer antennarius Pacific rock crab 8 0.115

Cancer anthonyi yellow crab 25 0.751 Cancer jordani hairy rock crab 2 0.008 Cancer productus red rock crab 2 0.103 Crangon nigromaculata blackspotted bay shrimp 1 0.001 Heptacarpus palpator intertidal coastal shrimp 2 0.002 Loxorhynchus grandis sheep crab 1 0.692 Lysmata californica red rock shrimp 8 0.012 O. bimaculatus/bimaculoides California two

-spot oct opus 5 0.451 Pachycheles pubescens pubescent porcelain crab 1 0.001 Pachycheles rudis thick claw porcelain crab 2 0.002 Pachycheles sp Pachycheles porcelain crab unid 1 0.001 Pachygrapsus crassipes striped shore crab 3 0.014 Panulirus interruptus California spiny lobster 2 0.991 Portunus xantusii Xantus swimming crab 1 0.014 Pyromaia tuberculata tuberculate pear crab 1 0.001 65 3.159 3 Cancer antennarius Pacific rock crab 5 0.395

Cancer anthonyi yellow crab 93 4.74 Cancer jordani hairy rock crab 1 0.002 Cancer productus red rock crab 6 0.364 Heptacarpus palpator intertidal coastal shrimp 10 0.004 Loxorhynchus grandis sheep crab 1 0.908 Lysmata californica red rock shrimp 28 0.046 Pachycheles pubescens pubescent porcelain crab 1 0.001 Panulirus interruptus California spiny lobster 1 0.48 Pugettia producta northern kelp crab 3 0.004 149 6.944

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4-44 Scattergood Generating Station - Normal Operation Impingement Data - Invertebrates Survey: SG

SFI30 (Continued) Start Date: August 1, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Non

-Shellfish 3 Hermissenda crassicornis hermissenda 2 0.001 2 0.001

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4-45 Scattergood Generating Station - Normal Operation Impingement Data - Invertebrates Survey: SGSFI31 Start Date: August 8, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 Cancer anthonyi yellow crab 20 0.24 20 0.24 2 Cancer anthonyi yellow crab 80 4.8

Cancer jordani hairy rock crab 20 0.06 100 4.86 3 Cancer antennarius Pacific rock crab 20 0.06

Cancer anthonyi yellow crab 80 2.9 Cancer jordani hairy rock crab 20 0.06 120 3.02
Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4-46 Scattergood Generating Station - Normal Operation Impingement Data - Invertebrates Survey: SGSFI32 Start Date: August 16, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 Cancer anthonyi yellow crab 1 0.008 Cancer productus red rock crab 1 0.041 2 0.049 2 Cancer anthonyi yellow crab 8 0.08

Portunus xantusii Xantus swimming crab 8 0.176 16 0.256 3 Cancer anthonyi yellow crab 1 0.036

Pachygrapsus crassipes striped shore crab 20 0.03 21 0.066
Non

-Shellfish 2 Dirona picta spotted dirona 1 0.001 1 0.001

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4-47 Scattergood Generating Station - Normal Operation Impingement Data - Invertebrates Survey: SGSFI33 Start Date: August 22, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 None

2 Cancer anthonyi yellow crab 3 0.073

Pachygrapsus crassipes striped shore crab 1 0.004 Portunus xantusii Xantus swimming crab 1 0.031 5 0.108 3 Cancer anthonyi yellow crab 1 0.001

Portunus xantusii Xantus swimming crab 2 0.036 3 0.037
Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4-48 Scattergood Generating Stat ion - Normal Operation Impingement Data - Invertebrates Survey: SGSFI34 Start Date: August 29, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 None

2 None
3 Portunus xantusii Xantus swimming crab 1 0.034 1 0.034
Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4-49 Scattergood Generating Station - Normal Operation Impingement Data - Invertebrates Survey: SGSFI35 Start Date: September 5, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 None

2 None
3 Cancer anthonyi yellow crab 1 0.001 1 0.001
Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 50 Scattergoo

d Generating Station - Normal Operation Impingement Data - Invertebrates Survey: SGSFI36 Start Date: September 12, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 None

2 P achygrapsus crassipes striped shore crab 1 0.004

Panulirus interruptus California spiny lobster 2 5.2 3 5.204 3 Cancer anthonyi yellow crab 1 0.004

Lysmata californica red rock shrimp 1 0.001 Portunus xantusii Xantus swimming crab 1 0.018 3 0.023
Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 51 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrates Survey: SGSFI37 Start Date: September 19, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 None

2 None
3 Lysmata californica red rock shrimp 1 0.001 1 0.001
Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 52 Scattergood Generating Station - Normal Operation Impingement Data - Invertebrates Survey: SGSFI38 Start Date: September 26, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 None

2 Panulirus interruptus California spiny lobster 1 0.001 1 0.001 3 Lysmata californica red rock shrimp 7 0.003 7 0.003
Non

-Shellfish 1 Hermissenda crassicornis hermissenda 1 0.001 1 0.001 3 Polyorchis penicillatus red jellyfish 1 0.012 1 0.01 2

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 53 Scattergood Generating Station - Normal Operation Impingement Data - Invertebrates Survey: SGSFI39 Start Date: October 3, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 Lysmata californica red rock shrimp 3 0.001 Panulirus interruptus California spiny lobster 1 0.529 Portunus xantusii Xantus swimming crab 1 0.025 5 0.555 2 None
3 Cancer anthonyi yellow crab 3 0.002

Heptacarpus palpator intertidal coastal shrimp 1 0.001 Lysmata californica red rock shrimp 10 0.004 O. rubescens East Pacific red octopus 1 0.103 Portunus xantusii Xantus swimming crab 2 0.002 17 0.112
Non

-Shellfish 3 Hermissenda crassicornis hermissenda 15 0.004 Navanax inermis California aglaja 2 0.003 17 0.007

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 54 Scattergood Generating Station - Normal Operation Impingement Data - Invertebrates Survey: SGSFI40 Start Date: October 10, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 Pachygrapsus crassipes striped shore crab 1 0.001 1 0.001 2 None
3 Panulirus interruptus California spiny lobster 1 1.65 1 1.65
Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 55 Scattergood Generating Station - Normal Operation Impingement Data - Invertebrates Survey: SGSFI41 Start Date: October 17, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 Portunus xantusii Xantus swimming crab 1 0.018 1 0.018 2 Portunus xantusii Xantus swimming crab 1 0.002 1 0.002 3 Lysmata californica red rock shrimp 1 0.001 1 0.001
Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 56 Sc attergood Generating Station - Normal Operation Impingement Data - Invertebrates Survey: SGSFI42 Reverse Flow Start Date: October 24, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 None

2 Pugettia producta northern kelp crab 1 0.002 1 0.002 3 Cancer antennarius Pacific rock crab 4 0.005

Cancer anthonyi yellow crab 7 0.004 Cancer gracilis graceful crab 1 0.069 Podochela hemphill hemphill kelp crab 1 0.001 13 0.079
Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 57 Scattergood Generating Station - Normal Operation Impingement Data - Invertebrates Survey: SGSFI43 Reverse Flow Start Date: October 31, 2006 Survey Totals

Unit T axon Common Name Abundance Biomass (kg) Shellfish 1 None

2 Portunus xantusii Xantus swimming crab 1 0.005 1 0.005 3 Portunus xantusii Xantus swimming crab 1 0.009 1 0.009
Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 58 Scattergood Generating Station - Normal Operation Impingement Data - Invertebrates Survey: SGSFI44 Reverse Flow Start Date: November 7, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 None

2 Pachygrapsus crassipes striped shore crab 1 0.002

Portunus xantusii Xantus swimming crab 4 0.061 5 0.063 3 Cancer jordani hairy rock crab 1 0.001

Portunus xantusii Xantus swimming crab 2 0.014 3 0.015
Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 59 Scattergood Generating Station - Normal Operation Impingement Data - Invertebrates Survey: SGSFI45 Start Date: November 14, 2006 Survey Totals

Unit Taxon Common Name Abundance Bi omass (kg) Shellfish 1 Portunus xantusii Xantus swimming crab 1 0.003 1 0.003 2 Lophopanopeus bellus blackclaw crestleg crab 1 0.002

Portunus xantusii Xantus swimming crab 1 0.017 2 0.019 3 None
Non

-Shellf

ish None

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 60 Scattergood Generating Station - Normal Operation Impingement Data - Invertebrates Survey: SGSFI46 Reverse Flow Start Date: November 21, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 None

2 None
3 Cancer anthonyi yellow crab 3 0.004

Portunus xantusii Xantus swimming crab 1 0.006 4 0.01
Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 61 Scattergood Generating Station - Normal Operation Impingement Data - Invertebrates Survey: SGSFI47 Reverse Flow Start Date: November 28, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 Portunus xantusii Xantus swimming crab 5 0.036 5 0.036 2 Farfantepenaeus californiensis yellowleg shrimp 1 0.022

Panulirus interruptus California spiny lobster 1 0.23 Portunus xantusii Xantus swimming crab 3 0.012 5 0.264 3 Portunus xantusii Xantus swimming cr ab 1 0.007

Pyromaia tuberculata tuberculate pear crab 1 0.001 2 0.008
Non

-Shellfish 2 Polyorchis penicillatus red jellyfish 1 0.003 1 0.003

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 62 Scattergood Generating Station - Normal Operation Impingement Data - Invertebrates Survey: SGSFI48 Reverse Flow Start Date: December 5, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 None

2 Portunus xantusii Xantus swimming crab 1 0.003 1 0.003 3 None
Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 63 Scattergood Generating Station - Normal Operation Impingement Data - Invertebrates Survey: SGSFI49 Start Date: December 12, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 Portunus xantusii Xantus swimming crab 4 0.02 4 0.02 2 Cancer anthonyi yellow crab 2 0.003

O. bimaculatus/bimaculoides California two

-spot octopus 1 0.039 Pachygrapsus crassipes stripe d shore crab 1 0.001 Portunus xantusii Xantus swimming crab 2 0.009 6 0.052 3 Lepidopa californica California mole crab 1 0.002

O. bimaculatus/bimaculoides California two

-spot octopus 1 0.028 Portunus xantusii Xantus swimming crab 34 0.194 Pugettia producta northern kelp crab 1 0.001 37 0.225
Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 64 Scattergood Generating Station - Normal Operation Impingement Data - Invertebrates Survey: SGSFI50 Start Date: December 19, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 Crangon nigromaculata blackspotted bay shrimp 2 0.003 Portunus xantusii Xantus swimming crab 4 0.065 6 0.068 2 Blepharipoda occidentalis spiny mole crab 1 0.011

Cancer antennarius Pacific rock crab 1 0.067 Portunus xantusii Xantus swimming crab 14 0.077 16 0.155 3 Cancer anthonyi yellow crab 3 0.002

Crangon nigromaculata blackspotted bay shrimp 3 0.005 Loligo opalesc ens California market squid 1 0.033 Panulirus interruptus California spiny lobster 1 0.798 Portunus xantusii Xantus swimming crab 35 0.162 43 1.000
Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 65 Scattergood Generating Station - Normal Operation Impingement Data - Invertebrates Survey: SGSFI51 Start Date: December 26, 2006 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 Cancer anthonyi yellow crab 1 0.002 Heptacarpus palpator intertidal coastal shrimp 1 0.001 Portunus xantusii Xantus swimming crab 1 0.003 3 0.006 2 Cancer anthonyi yellow crab 1 0.002

Pachygrapsus crassipes striped shore crab 1 0.001 Portunus xantusii Xantus swimming crab 1 0.004 3 0.007 3 Cancer anthonyi yellow crab 4 0.006

Cancer gracilis graceful crab 1 0.082 Portunus xantusii Xantus swimming crab 2 0.028 7 0.116
Non

-Shellfish 3 Polyorchis penicillatus red jellyfish 1 0.001 1 0.001

### Scattergood Generating Station

IM&E Final Report Appendix E4: Normal Operation Impingement Data - Invertebrates

E4- 66 Scattergood Generating Station - Normal Operation Impingement Data

– Invertebrates Survey: SGSFI52 Start Date: January 2, 2007 Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish 1 None

2 Cancer anthonyi yellow crab 1 0.006 1 0.006 3 Cancer anthonyi yellow crab 4 0.008

Portunus xantusii Xantus swimming crab 2 0.03 Panulirus interruptus California spiny lobster 1 0.056 Heptacarpus palpator intertidal coastal shrimp 2 0.001 9 0.095
Non

-Shellfish 1&2 Polyorchis penicillatus red jellyfish 1 0.004 Dendronotus frondosus leafy dendronotid 3 0.001 Hermissenda crassicornis hermissenda 3 0.001 7 0.006 3 Hermissenda crassicornis hermissenda 4 0.001

Dendronotus frondosus leafy dendronotid 51 0.012 55 0.013

### Scattergood Generating Station

IM&E Final Report Appendix E5: Velocity Cap Study Impingement Data - Invertebrates

E5-1 Scattergood Generating Station

– Velocity Cap Study Impingement Data - Invertebrates Survey: VC1 Velocity Cap Imp. Survey Date: October 12, 2006 Normal Flow Direction Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish No shellfish Non

-Shellfish None 

### Appendix E5. Velocity Cap Study Impingement Data

– Invertebrates

### Scattergood Generating Station

IM&E Final Report Appendix E5: Velocity Cap Study Impingement Data - Invertebrates

E5-2 Scattergood Generating Station

– Velocity Cap Study Impingement Data - Invertebrates Survey: VC2 Velocity Cap Imp. Survey Date: October 13, 2006 Normal Flow Direction Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish All Panulirus interruptus California spiny lobster 1 0.243 Portunus xantusii Xantus swimming crab 3 0.009 4 0.252 Non

-Shellfish All Dendronotus dendronotid nudibranch unid 1 0.002 1 0.002

### Scattergood Generating Station

IM&E Final Report Appendix E5: Velocity Cap Study Impingement Data - Invertebrates

E5-3 Scattergood Generating Station

– Velocity Cap Study Impingement Data - Invertebrates Survey: VC3 Velocity Cap Imp. Survey Date: October 16, 2006 Normal Flow Direction Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish All Pachygrapsus crassipes striped shore crab 1 0.004 Panulirus interruptus California spiny lobster 2 0.851 Portunus xantusii Xantus swimming crab 2 0.053 5 0.908 Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E5: Velocity Cap Study Impingement Data - Invertebrates

E5-4 Scattergood Generating Station

– Velocity Cap Study Impingement Data

– Invertebrates Survey: VC4 Velocity Cap Imp. Survey Date: October 17, 2006 Normal Flow Direction Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish All Cancer amphioetus bigtooth rock crab 1 0.001 Oct. bimaculatus/bimaculoides California two

-spot octopus 1 0.094 Portunus xantusii Xantus swimming crab 1 0.002 3 0.097 Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E5: Velocity Cap Study Impingement Data - Invertebrates

E5-5 Scattergood Generating Station

– Velocity Cap Study Impingement Data - Invertebrates Survey: VC5 Velocity Cap Imp. Survey Date: October 19, 2006 Normal Flow Direction Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish All Portunus xantusii Xantus swimming crab 2 0.040 2 0.040 Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E5: Velocity Cap Study Impingement Data - Invertebrates

E5-6 Scattergood Generating Station

– Velocity Cap Study Impingement Data

– Invertebrates Survey: VC6 Velocity Cap Imp. Survey Date: October 20, 2006 Normal Flow Direction Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish All Pachygrapsus crassipes striped shore crab 1 0.001 Portunus xantusii Xantus swimming crab 1 0.026 2 0.027 Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E5: Velocity Cap Study Impingement Data - Invertebrates

E5-7 Scattergood Generating Station

– Velocity Cap Study Impingement Data

– Invertebrates Survey: VC7 Velocity Cap Imp. Survey Date: October 23, 2006 Normal Flow Direction Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish All Oct. bimaculatus/bimaculoides California two

-spot octopu s 1 0.201 Portunus xantusii Xantus swimming crab 1 0.003 2 0.204 Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E5: Velocity Cap Study Impingement Data - Invertebrates

E5-8 Scattergood Generating Station

– Velocity Cap Study Impingement Data

– Invertebrates Survey: VC18 Velocity Cap Imp. Survey Date: November 10, 2006 Normal Flow Direction Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish All Cancer antennarius Pacific rock crab 1 0.003 Oct. bimaculatus/bimaculoides California two

-spot octopus 1 0.610 Pachygrapsus crassipes striped shore crab 2 0.009 Panulirus interruptus California spiny lobster 1 0.461 Portunus xantusii Xantus swimming crab 2 0.045 Pugettia producta northern kelp crab 1 0.073 8 1.201 Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E5: Velocity Cap Study Impingement Data - Invertebrates

E5-9 Scattergood Generating Station

– Velocity Cap Study Impingement Data - Invertebrates Survey: VC19 Velocity Cap Imp. Survey Date: November 13, 2006 Normal Flow Direction Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) She llfish All Pachycheles rudis thick claw porcelain crab 8 0.008

Panulirus interruptus California spiny lobster 2 3.287 Portunus xantusii Xantus swimming crab 13 0.089 23 3.384 Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E5: Velocity Cap Study Impingement Data - Invertebrates

E5- 10 Scattergood Generatin

g Station

– Velocity Cap Study Impingement Data

– Invertebrates Survey: VC20 Velocity Cap Imp. Survey Date: November 15, 2006 Normal Flow Direction Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish All Pachygrapsus crassipes striped shore crab 1 0.012 Panulirus interruptus California spiny lobster 1 0.623 Portunus xantusii Xantus swimming crab 2 0.006 4 0.641 Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E5: Velocity Cap Study Impingement Data - Invertebrates

E5- 11 Scattergood Generating Station

– Velocity Cap Study Impingement Data

– Invertebrates Survey: VC21 Velocity Cap Imp. Survey Date: November 16, 2006 Normal Flow Direction Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish All Portunus xantusii Xantus swimming crab 2 0.010 2 0.010 Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E5: Velocity Cap Study Impingement Data - Invertebrates

E5- 12 Scattergood Generating Station

– Velocity Cap Study Impingement Data - Invertebrates Survey: VC22 Velocity Cap Imp. Survey Date: November 17, 2006 Normal Flow Direction
Su rvey Totals Unit Taxon Common Name Abundance Biomass (kg) Shellfish All Portunus xantusii Xantus swimming crab 1 0.002 1 0.002 Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E5: Velocity Cap Study Impingement Data - Invertebrates

E5- 13 Scattergood Generating Station

– Velocity Cap Study Impingement Data

– Invertebrates Survey: VC23 Velocity Cap Imp. Survey Date: November 20, 2006 Normal Flow Direction Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish All Panulirus interruptus California spiny lobster 1 0.259 1 0.259 Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E5: Velocity Cap Study Impingement Data - Invertebrates

E5- 14 Scattergood Generating Station

– Velocity Cap Study Impingement Data

– Invertebrates Survey: VC34 Velocity Cap Imp. Survey Date: December 12, 2006 Normal Flow Direction Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish All Blepharipoda occidentalis spiny mole crab 3 0.058 Cancer anthonyi yellow crab 1 0.004 Crangon nigromaculata blackspotted bay shrimp 1 0.001 Oct. bimaculatus/bimaculoides California two

-spot octopus 1 0.521 Pachygrapsus crassipes striped shore crab 1 0.003 Portunus xantusii Xantus swimming crab 2 0.011 9 0.598 Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E5: Velocity Cap Study Impingement Data - Invertebrates

E5- 15 Scattergood Generating Station

– Velocity Cap Study Impingement Data

– Invertebrates Survey: VC35 Velocity Cap Imp. Survey Date: December 14, 2006 Normal Flow Direction Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish All Cancer antennarius Pacific rock crab 2 0.002 Crangon nigromaculata blackspotted bay shrimp 2 0.003 Portunus xantusii Xantus swimming crab 14 0.103 18 0.108 Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E5: Velocity Cap Study Impingement Data - Invertebrates

E5- 16 Scattergood Generating Station

– Velocity Cap Study Impingement Data

– Invertebrates Survey: VC36 Ve locity Cap Imp. Survey Date: December 15, 2006 Normal Flow Direction Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish All Cancer anthonyi yellow crab 1 0.006 Cancer gracilis graceful crab 1 0.002 Cancerjordani hairy rock crab 1 0.001 Crangon nigromaculata blackspotted bay shrimp 18 0.023 Heptacarpus palpator intertidal coastal shrimp 1 0.001 Loligo opalescens California market squid 1 0.023 Lysmata californica red rock shrimp 1 0.002 Octopus rubescens East Pacific red octopus 2 0.148 Portunus xantusii Xantus swimming crab 55 0.391 81 0.597 Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E5: Velocity Cap Study Impingement Data - Invertebrates

E5- 17 Scattergood Generating Station

– Velocity Cap Study Impingement Data

– Invertebrates Survey: VC37 Velocity Cap Imp. Survey Date: December 18, 2006 Normal Flow Direction Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish All Cancer antennarius Pacific rock crab 1 0.007 Panulirus interruptus California spiny lobster 1 0.500 Portunus xantusii Xantus swimming crab 3 0.029 5 0.536 Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E5: Velocity Cap Study Impingement Data - Invertebrates

E5- 18 Scattergood Generating Station

– Velocity Cap Study Impingement Data

– Invertebrates Survey: VC38 Velocity Cap Imp. Survey Date: December 19, 2006 Normal Flow Direction Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish All Cancer antennarius Pacific rock crab 1 0.004 Portunus xantusii Xantus swimming crab 5 0.027 6 0.031 Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E5: Velocity Cap Study Impingement Data - Invertebrates

E5- 19 Scattergood Generating Station

– Velocity Cap Study Impingement Data

– Invertebrates Survey: VC39 Velocity Cap Imp. Survey Date: December 21,2006 Normal Flow Direction Survey Totals

Unit Taxon Common Name Ab undance Biomass (kg) Shellfish All Cancer antennarius Pacific rock crab 2 0.014 Crangon nigromaculata blackspotted bay shrimp 1 0.004 Portunus xantusii Xantus swimming crab 21 0.152 24 0.170 Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E5: Velocity Cap Study Impingement Data - Invertebrates

E5- 20 Scat tergood Generating Station

– Velocity Cap Study Impingement Data

– Invertebrates Survey: VC40 Velocity Cap Imp. Survey Date: December 22, 2006 Normal Flow Direction Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish All Cancer anthonyi yellow crab 3 0.003 Cancer gracilis graceful crab 1 0.001 Cancer jordani hairy rock crab 1 0.001 Oct. bimaculatus/bimaculoides California two

-spot octopus 1 0.280 Portunus xantusii Xantus swimming crab 14 0.061 20 0.346 Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E5: Velocity Cap Study Impingement Data - Invertebrates

E5- 21 Scattergood Generating Station

– Velocity Cap Study Impingement Data - Invertebrates Survey: VC41 Velocity Cap Imp. Survey Date: December 26, 2006 Normal Flow Direction Survey Totals

Uni t Taxon Common Name Abundance Biomass (kg) Shellfish All Cancer anthonyi yellow crab 4 0.017 Cancer gracilis graceful crab 1 0.001 Crangon nigromaculata blackspotted bay shrimp 1 0.002 Panulirus interruptus California spiny lobster 1 0.279 Portunus xantusii Xantus swimming crab 15 0.064 22 0.363 Non

-Shellfish All Caudina arenicola sweet potato sea cucumber 1 0.006 1 0.006

### Scattergood Generating Station

IM&E Final Report Appendix E5: Velocity Cap Study Impingement Data - Invertebrates

E5- 22 Scattergood Generating Station

– Velocity Cap Study Impingement Data

– Invertebrates Su rvey: VC42 Velocity Cap Imp. Survey Date: December 28, 2006 Normal Flow Direction Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish All Blepharipoda occidentalis spiny mole crab 1 0.004 Cancer antennarius P acific rock crab 1 0.004 Cancer anthonyi yellow crab 5 0.013 Cancer jordani hairy rock crab 1 0.004 Crangon nigromaculata blackspotted bay shrimp 103 0.139 Oct. bimaculatus/bimaculoides California two

-spot octopus 1 0.157 Portunus xantusii Xantus swimming crab 10 0.088 122 0.409 Non

-Shellfish All Caudina arenicola sweet potato sea cucumber 1 0.016 1 0.016

### Scattergood Generating Station

IM&E Final Report Appendix E5: Velocity Cap Study Impingement Data - Invertebrates

E5- 23 Scattergood Generating Station

– Velocity Cap Study Impingement Data

– Invertebrates Survey: VC43 Velocity Cap Imp. Survey Date: December 29, 2006 Normal Flow Direction Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish All Cancer antennarius Pacific rock crab 2 0.113 Cancer anthonyi yellow crab 5 0.013 Cancer p roductus red rock crab 1 0.001 Crangon nigromaculata blackspotted bay shrimp 13 0.027 Lysmata californica red rock shrimp 1 0.001 Oct. bimaculatus/bimaculoides California two

-spot octopus 1 0.138 Portunus xantusii Xantus swimming crab 12 0.106 Pugettia producta northern kelp crab 3 0.008 38 0.407 Non

-Shellfish All None

### Scattergood Generating Station

IM&E Final Report Appendix E5: Velocity Cap Study Impingement Data - Invertebrates

E5- 24 Scattergood Generating Station

– Velocity Cap Study Impingement Data - Invertebrates Survey: VC44 Velocity Cap Imp. Survey Date: January 1, 2007 Normal Flow Direction Survey Totals

Unit Taxon Common Name Abundance Biomass (kg) Shellfish All Cancer antennarius Pacific rock crab 1 0.005 Cancer anthonyi yellow crab 8 0.029 Cancer jordani hairy rock crab 2 0.010 Pachycheles rudis thick claw porcelain crab 1 0.002 Portunus xantusii Xantus swimming crab 2 0.018 14 0.064 Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E6: Heat Treatment Impingement Data - Invertebrates

E6-1 Scatergood Generating Station - Heat Treatment Impingement Data

– Invertebrates Survey: SGSHT1 Date: January 25, 2006 Survey Totals

Taxon Common Name Abundance Biomass (kg) Shellfish Heptacarpus palpator intertidal coastal shrimp 851 1.494

Cancer anthonyi yellow crab 60 0.194 Cancer antennarius Pacific rock crab 52 0.082 Cancer gracilis graceful crab 43 0.189 Octopus bimaculatus/bimaculoides two

-spot octopus 38 18.051 Alpheus clamator twistclaw pistol shrimp 34 0.069 Lysmata californica red rock shrimp 26 0.344 Portunus xantusii Xantus swimming crab 26 0.172 Panulirus interruptus California spiny lobster 22 10.871 Pyromaia tuberculata tuberculate pear crab 22 0.030 Lophopanopeus bellus blackclaw crestleg crab 17 0.017 Scyra acutifrons sharpnose crab 9 0.030 Cancer productus red rock crab 4 0.013 Paraxanthias taylori lumpy rubble crab 4 0.008 Pugettia producta northern kelp crab 4 0.021 Loxorhynchus grandis sheep crab 3 0.833 Farfantepenaeus californiensis yellowleg shrimp 1 0.037 1,216 32.455
Non

-Shellfish Astropecten armatus spiny sand star 3 0.029

Navanax inermis California aglaja 3 0.013 Conus californicus California cone 1 0.005 Hermissenda crassicornis opalescent nudibranch 1 0.001 Parastichopus californicus Calif ornia sea cucumber 1 0.102 9 0.150 

### Appendix E6. Heat Treatment Impingement Data

– Invertebrates

### Scattergood Generating Station

IM&E Final Report Appendix E6: Heat Treatment Impingement Data - Invertebrates

E6-2 Scatergood Generating Station - Heat Treatment Impingement Data

– Invertebrates Survey: SGSHT2 Date: August 10, 2006 Survey Totals

Taxon Common Name Abundance Biomass (kg) Shellfish Cancer antennarius Pacific rock crab 300 13.186

Cancer anthonyi yellow crab 72 2.018 Cancer jordani hairy rock crab 7 0.036 Cancer sp cancer crab unid 6 0.013 Heptacarpus palpator intertidal coastal shrimp 20 0.02 Lysmata californica red rock shrimp 100 0.24 O. bimaculatus/bimaculoides California two

-spot octopus 5 0.413 Panulirus interruptus California spiny lobster 58 35.14 Pugettia producta northern kelp crab 1 0.052 569 51.118
Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E6: Heat Treatment Impingement Data - Invertebrates

E6-3 Scatergood Generating Station - Heat Treatment Impingement Data

– Invertebrates Survey: SGSHT3 Date: August 15, 2006 Survey Totals

Taxon Common Name Abundance Biomass (kg) Shellfish Cancer antennarius Pacific rock crab 27 1.313

Ca ncer anthonyi yellow crab 39 1.555 Cancer productus red rock crab 2 0.071 Lysmata californica red rock shrimp 6 0.019 Cancer antennarius Pacific rock crab 27 1.313 Cancer anthonyi yellow crab 39 1.555 Cancer productus red rock crab 2 0.071 Lysmata californica red rock shrimp 6 0.019 Panulirus interruptus California spiny lobster 9 5.023 83 7.981
Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E6: Heat Treatment Impingement Data - Invertebrates

E6-4 Scatergood Generating Station - Heat Treatment Impingement Data

– Invertebrates Survey: SGSHT4 Date: October 4, 2006 Survey Totals

Taxon Common Name Abundance Biomass (kg) Shellfish Cancer anthonyi yellow crab 15 0.036

Cancer jordani hairy rock crab 15 0.015 Lysmata californica red rock shrimp 1,700 1.2 O. bimaculatus/bimaculoides California two

-spot octopus 20 1.525 Pachygrapsus crassipes striped shore crab 45 0.26 Panulirus interruptus California spiny lobster 40 30.074 Portunus xantusii Xantus swimming crab 5 0.005 1840 33.115
Non

-Shellfish Navanax inermis California aglaja 13 0.029 13 0.029

### Scattergood Generating Station

IM&E Final Report Appendix E6: Heat Treatment Impingement Data - Invertebrates

E6-5 Scattergood Generating Station

– Velocity Cap Study Impingement Data - Invertebrates Survey: VCHT1 Heat Treatment IM Survey Date: October 23, 2006 Normal Flow Direction Survey Totals

Taxon Common Name Abundance Biomass (kg) Shellfish Heptacarpus palpator intertidal coastal shrimp 2 0.002

Lysmata californica red rock shrimp 2 0.002 Oct. bimaculatus/bimaculoides California two

- spot octopus 4 1.201 Panulirus interruptus California spiny lobster 8 4.556 Portunus xantusii Xantus swimming crab 3 0.047 19 5.808 Non

-Shellfish None

### Scattergood Generating Station

IM&E Final Report Appendix E6: Heat Treatment Impingement Data - Invertebrates

E6-6 Scattergood Generating Station

– Velocity Cap Study Impingement Data - Invertebrates Survey: VCHT3 Heat Treatment IM Surve y Date: November 20, 2006 Normal Flow Direction Survey Totals

Taxon Common Name Abundance Biomass (kg) Shellfish Lysmata californica red rock shrimp 1 0.002

Oct. bimaculatus/bimaculoides California two

-spot octopus 3 1.861 Panulirus interruptus California spiny lobster 1 0.354 5 2.217 Non

-Shellfish Pisaster brevispinus short

- spined sea star 1 0.021 1 0.021

### Scattergood Generating Station

IM&E Final Report Appendix E6: Heat Treatment Impingement Data - Invertebrates

E6-7 Scattergood Generating Station

– Velocity Cap Study Impingement Data

– Invertebrates Survey: VCHT6 Heat Treatment IM Survey Date: January 3, 2006 Normal Flow Direction Survey Totals

Taxon Common Name Abundance Biomass (kg) Shellfish Cancer antennarius Pacific rock crab 4 0.028

Cancer anthonyi yellow crab 8 0.045 Cancer gracilis graceful crab 2 0.005 Cancer jordani hairy rock crab 2 0.008 Heptacarpus palpator intertidal coastal shrimp 2 0.002 Lysmata californica red rock shrimp 13 0.024 Oct. bimaculatus/bimaculoides California two

-spot octopus 9 3.064 Panulirus interrup

tus California spiny lobster 14 4.233 Portunus xantusii Xantus swimming crab 15 0.081 Pugettia producta northern kelp crab 4 0.022 73 7.512
Non

-Shellfish Navanax inermis California aglaja 6 0.024 6 0.024

# Scattergood Generating Station



# Appendix F Master Species Lists

F1. Entrainment Master Species List F2. Impingement Master Species List

– Invertebrates F3. Impingement Master Species List
- Fishes

### Scattergood Generating Station

IM&E Final Report Appendix F1: Entrainment Species List

F1 -1 

# Appendix F1 Master Species List of Target Invertebrates and Fishes

Identified in the Entrainment Samples

TaxaName Taxon Common Name Cephalopoda Loligo opalescens market squid Decapoda unidentified crab (megalops) unid. crab megalops Palinuridae Panulirus interruptus (phyllosome) California spiny lobster (larval) Anomura Anomura unid. (megalops) crustaceans Paguridae Paguridae unid. (megalops) hermit crab megalops Porcellanidae Pachycheles pubescens (megalops) pubescent porcelain crab megalops

Pachycheles rudis (megalops) thickclaw porcelain crab megalops Pachycheles spp. (megalops) porcelain crabs megalops Petrolisthes cinctipes (megalops) flat porcelain crab megalops Petrolisthes spp. (megalops) porcelain crab megalops Porcellanidae unid. (megalops) porcelain crab megalops Hippoidea Hippoidea (megalops) mole crab megalops Hippidae Emerita analoga (megalops) mole crabs megalops Diogenidae Diogenidae (megalops) left

-handed hermit crabs megalops Brachyura Brachyura unid. (megalops) unidentified crab megalops Majidae Pugettia spp. (megalops) kelp crabs megalops Cancridae Cancer antennarius (megalops) brown rock crab megalops

Cancer anthonyi (megalops) yellow crab megalops Cancer gracilis (megalops) slender crab megalops Cancer oregonensis (megalops) pygmy rock crab Cancer productus (megalops) red rock crab megalops Cancer spp. (megalops) cancer crabs megalops Portunidae Portunus xantusii (megalops) Xantus' swimming crab megalops Xanthidae Lophopanopeus bellus (megalops) black

-claw crestleg crab megalops

Lophopanopeus spp. (megalops) black

-clawed crab megalops Pinnotheridae Fabia subquadrata grooved mussel crab

Pinnixa spp. (megalops) pea crabs megalops Pinnotheres spp. (megalops) pea crab megalops Pinnotheridae (megalops) pea crab megalops Grapsidae Grapsidae unid. (megalops) shore crab megalops

Hemigrapsus spp. (megalops) shore crab megalops Actinopterygii fish eggs unid

. unidentified fish eggs

larvae, unidentified yolksac unidentified yolksac larvae larval fish

- damaged unidentified larval fishes larval fish fragment unidentified larval fishes (table continued)

### Scattergood Generating Station

IM&E Final Report Appendix F1: Entrainment Species List

F1 -2 TaxaName Taxon Common Name Actinopterygii larval/post

-larval fish unid. larval fishes Acanthopterygii Sciaenidae / Paralichthyidae / Labridae (eggs) fish eggs Clupeidae Clupea pallasii Pacific herring

Etrumeus teres round herring Sardinops sagax Pacific sardine Engraulidae Engraulidae unid. anchovies

Engraulidae unid. (eggs) anchovy eggs Engraulis mordax northern anchovy Argentinidae Argentina sialis Pacific argentine Bathylagidae Bathylagidae unid. blacksmelt

Bathylagus ochotensis popeye blacksmelt Leuroglossus stilbius California smoothtongue Gonostomatidae Cyclothone signata showy bristlemouth Myctophidae Diaphus theta California headlight fish

Myctophidae unid. lanternfishes Nannobrachium spp. lanternfishes Stenobrachius leucopsarus northern lampfish Triphoturus mexicanus Mexican lampfish Gobiesocidae Gobiesox spp. clingfishes Merlucciidae Merluccius productus Pacific hake Ophidiidae Chilara taylori spotted cusk

-eel

Ophidiidae unid. cusk

-eels Ophidion scrippsae basketweave cusk

-eel Bythitidae Brosmophycis marginata red brotula Atherinopsidae Atherinops affinis topsmelt

Atherinopsidae unid. silversides Atherinopsis californiensis jacksmelt Leuresthes tenuis California grunion Syngnathidae Syngnathidae unid. pipefishes

Syngnathus spp. pipefishes Scorpaenidae Scorpaena guttata California scorpionfish

Sebastes spp. rockfishes Sebastolobus altivelis longspine thornyhead Sebastolobus spp. thornyheads Hexagrammidae Hexagrammidae unid. greenlings

Oxylebius pictus painted greenling Zaniolepis frenata shortspine combfish Zaniolepis latipinnis longspine combfish Zaniolepis spp. combfishes Cottidae Artedius lateralis smoothhead sculpin

Chitonotus / Icelinus sculpins Chitonotus pugetensis roughback sculpin Clinocottus analis wooly sculpin (table continued)

### Scattergood Generating Station

IM&E Final Report Appendix F1: Entrainment Species List

F1 -3 TaxaName Taxon Common Name Cottidae Clinocottus spp. sculpins

Cottidae unid. sculpins Icelinus quadriseriatus yellowchin sculpin Icelinus spp. sculpins Leptocottus armatus Pacific staghorn sculpin Oligocottus spp. sculpins Ruscarius creaseri roughcheek sculpin Ruscarius meanyi Puget Sound sculpin Scorpaenichthys marmoratus cabezon Agonidae Odontopyxis trispinosa pygmy poacher Liparidae Liparis mucosus slimy snailfish

Liparis spp. snailfishes Serranidae Paralabrax clathratus kelp bass

Paralabrax maculatofasciatus spotted sand bass Paralabrax spp. sand bass Paralabrax spp. (eggs) sand bass eggs Haemulidae Anisotremus davidsonii sargo

Haemulidae unid. grunts Xenistius californiensis salema Sciaenidae Atractoscion nobilis white seabass

Cheilotrema saturnum black croaker Genyonemus lineatus white croaker Genyonemus lineatus (eggs) white croaker eggs Menticirrhus undulatus California corbina Roncador stearnsii spotfin croaker Roncador stearnsii (eggs) spotfin croaker eggs Sciaenidae unid. Croakers Sciaenidae unid. (eggs) croaker eggs Seriphus politus queenfish Umbrina roncador yellowfin croaker Kyphosidae Girella nigricans opaleye

Kyphosidae unid. Sea chubs Pomacentridae Chromis punctipinnis blacksmith

Hypsypops rubicundus garibaldi Pomacentridae unid. Damselfishes Sphyraenidae Sphyraena argentea Pacific barracuda

Sphyraena argentea (eggs) Pacific barracuda eggs Labridae Halichoeres semicinctus rock wrasse

Labridae unid. Wrasses Labridae unid. (eggs) wrasse eggs Oxyjulis californica senorita Oxyjulis californica (eggs) senorita eggs Semicossyphus pulcher California sheephead (table continued)

### Scattergood Generating Station

IM&E Final Report Appendix F1: Entrainment Species List

F1 -4 TaxaName Taxon Common Name Bathymasteridae Bathymasteridae unid. ronquils Blenniidae Hypsoblennius jenkinsi mussel blenny

Hypsoblennius spp. combtooth blennies Clinidae Gibbonsia spp. clinid kelpfishes Chaenopsidae Chaenopsidae unid. tube blennies Labrisomidae Labrisomidae unid. labrisomid blennies Gobiidae Acanthogobius flavimanus yellowfin goby

Gillichthys mirabilis longjaw mudsucker Gobiidae unid. gobies Lepidogobius lepidus bay goby Lythrypnus zebra zebra goby Rhinogobiops nicholsii blackeye goby Typhlogobius californiensis blind goby Scombridae Scomber japonicus (eggs) Pacific mackerel eggs Stromateidae Peprilus simillimus Pacific butterfish Pleuronectiformes Pleuronectiformes unid. flatfishes Pleuronectidae Isopsetta isolepis butter sole

Lepidopsetta bilineata rock sole Lyopsetta exilis slender sole Microstomus pacificus Dover sole Microstomus pacificus (eggs) Dover sole eggs Parophrys vetulus English sole Platichthys stellatus starry flounder Pleuronectes spp. righteye flounders Pleuronectidae unid. righteye flounders Pleuronectidae unid. (eggs) righteye flounder eggs Pleuronichthys guttulatus diamond turbot Pleuronichthys guttulatus (eggs) diamond turbot eggs Pleuronichthys ritteri spotted turbot Pleuronichthys spp. turbots Pleuronichthys spp. (eggs) turbot eggs Pleuronichthys verticalis hornyhead turbot Paralichthyidae Citharichthys sordidus Pacific sanddab

Citharichthys spp. sanddabs Citharichthys spp. (eggs) sanddab eggs Citharichthys stigmaeus speckled sanddab Hippoglossina stomata bigmouth sole Paralichthyidae unid. sand flounders Paralichthyidae unid. (eggs) sand flounder eggs Paralichthys californicus California halibut Paralichthys californicus (eggs) California halibut eggs Xystreurys liolepis fantail sole Cynoglossidae Cynoglossidae unid. tongue soles

Symphurus atricaudus California tonguefish

### Scattergood Generating Station

IM&E Final Report Appendix F2: I mpingement Species List - Invertebrates

F2-1 

# Appendix F2 Master Species List of Invertebrates Identified in

Impingement Samples

TaxaName Taxon Common Name
Cnidaria Cnidaria sea jelly, unid. Polyorchidae Polyorchis penicillatus red jellyfish

Scrippsia pacifica giant bell jelly Pelagiidae Chrysaora colorata purple

-striped jellyfish Aphroditidae Aphrodita sp. sea mouse, unid. Penaeidae Farfantepenaeus californiensis yellowleg shrimp Alpheidae Alpheus clamator twistclaw pistol shrimp Crangonidae Crangon nigromaculata blackspotted bay shrimp Hippolytidae Heptacarpus palpator intertidal coastal shrimp

Heptacarpus sp. coastal shrim p, unid. Heptacarpus stimpsoni Stimpson coastal shrimp Lysmata californica red rock shrimp Callianassidae Neotrypaea gigas giant ghost shrimp Palinuridae Panulirus interruptus California spiny lobster Paguridae Pagurus sp. hermit crab, unid.

Pagurus redondoensis unnamed hermit crab Porcellanidae Pachycheles holosericus sponge porcelain crab

Pachycheles pubescens pubescent porcelain crab Pachycheles rudis thick claw porcelain crab Pachycheles sp. porcelain crab, unid. Polyonyx quadriungulatus western tube crab Porcellanidae porcelain crab, unid. Albuneidae Blepharipoda occidentalis spiny mole crab

Lepidopa californica California mole crab Majidae Majidae spider crab, unid.

Pugettia dalli spined kelp crab Pugettia producta northern kelp crab Pugettia richii cryptic kelp crab Pugettia sp. kelp crab, unid. Inachidae Podochela hemphill hemphill kelp crab Inachoididae Pyromaia tuberculata tuberculate pear crab Pisidae Herbstia parvifrons crevice spider crab

Loxorhynchus crispatus moss crab Loxorhynchus grandis sheep crab Loxorhynchus sp. moss/sheep crab, unid. (table continued)

### Scattergood Generating Station

IM&E Final Report Appendix F2: Impingement Species List - Invertebrates

F2-2 TaxaName Taxon Common Name
Pisidae Scyra acutifrons sharpnose crab Parthenopidae Heterocrypta occidentalis sandflat elbow crab Cancridae Cancer amphioetus bigtooth rock crab

Cancer antennarius Pacific rock crab Cancer anthonyi yellow crab Cancer gracilis graceful crab Cancer jordani hairy rock crab Cancer productus red rock crab Cancer sp. cancer crab, unid. Portunidae Portunus xantusii Xantus swimming crab Xanthidae Lophopanopeus bellus blackclaw crestleg crab

Paraxanthias taylori lumpy rubble crab Pilumnidae Pilumnus spinohirsutus retiring hairy crab Pinnotheridae Pinnixa sp. pea crab, unid.

Pinnixa tomentosa pea crab Grapsidae Hemigrapsus nudus purple shore crab

Pachygrapsus crassipes striped shore crab Muricidae Pteropurpura festiva festive murex Columbellidae Amphissa versicolor variegate amphissa Buccinidae Kelletia kelletii Kellet's whelk Nassariidae Nassarius perpinguis fat western nassa Conidae Conus californicus California cone Lamellariidae Lamellaria diegoensis San Diego lamellaria Aglajidae Navanax inermis California aglaja Haminoeidae Haminoea virescens green glassy bubble Nudibranchia Nudibranchia nudibranch, unid. Dendronotidae Dendronotus frondosus leafy dendronotid

Dendronotus sp. nudibranch, unid. Dironidae Dirona picta spotted dirona Dotoidae Doto amyra hammerhead doto Polyceridae Triopha maculata spotted triopha Aeolidiidae Aeolidia papillosa shag

-rug aeolis

Aeolidiidae aeolid nudibranch Facelinidae Hermissenda crassicornis hermissenda Flabellinidae Flabellina trilineata threeline aeolis Pectinidae Leptopecten sp. scallop, unid. Cephalopoda Loligo opalescens California market squid Cephalopoda O. bimaculatus/bimaculoides California two

-spot octopus Cephalopoda Octopus rubescens East Pacific red octopus Astropectinidae Astropecten armatus spiny sand star Astropectinidae Astropecten verrilli sand star Asterinidae Asterina miniata bat star (table continued)

### Scattergood Generating Station

IM&E Final Report Appendix F2: Impingement Species List - Invertebrates

F2-3 TaxaName Taxon Common Name
Asterinidae Pisaster brevispinus short

-spined sea star

Pisaster giganteus giant

-spined sea star Ophiuroidea Ophiuroidea brittle star, unid. Ophiodermatidae Ophioderma panamense Panama brittle star Ophiothricidae Ophiothrix spiculata shiny brittle star Dendrasteridae Dendraster excentricus Pacific sand dollar Stichopodidae Parastichopus californicus California sea cucumber Caudinidae Caudina arenicola sweet potato sea cucumber Salpidae Salpa sp. salp, unid.

Thetys vagina common salp

### Scattergood Generating Station

IM&E Final Report Appendix F3: Impingement Species List - Fishes

F3-1 

# Appendix F3 Master Species List of fishes identified in the impingement samples.

TaxaName Taxon Common Name
Heterodontidae Heterodontus francisci horn shark Triakidae Mustelus henlei brown smoothhound Triakis semifasciata leopard shark Torpedinidae Torpedo californica Pacific electric ray Platyrhinidae Platyrhinoidis triseriata thornback Urolophidae Urobatis halleri round stingray Gymnuridae Gymnura marmorata California butterfly ray Myliobatidae Myliobatis californica bat ray Branchiostomatidae Branchiostoma californiense California lancelet Ophichthidae Ophichthus zophochir yellow snake eel Clupeidae Dorosoma petenense threadfin shad Sardinops sagax Pacific sardine Engraulidae Anchoa compressa deepbody anchovy Anchoa delicatissima slough anchovy Anchoa sp. deepbody/slough anchovy Engraulis mordax northern anchovy Synodontidae Synodus lucioceps California lizardfish Ophidiidae Chilara taylori spotted cusk

-eel Ophidion scrippsae basketweave cusk

-eel Batrachoididae Porichthys myriaster specklefin midshipman Porichthys notatus plainfin midshipman Atherinopsidae Atherinops affinis topsmelt Atherinopsis californiensis jacksmelt Atherinopsidae silverside, unid. Leuresthes tenuis California grunion Syngnathidae Syngnathus californiensis kelp pipefish Syngnathus leptorhynchus bay pipefish Syngnathus sp. pipefish, unid. Scorpaenidae Scorpaena guttata California scorpionfish Sebastes auriculatus brown rockfish Sebastes chrysomelas black

-and

-yellow rockfish Sebastes miniatus vermilion rockfish Sebastes paucispinis bocaccio Sebastes rastrelliger grass rockfish Hexagrammidae Oxylebius pictus painted greenling (table continued)

### Scattergood Generating Station

IM&E Final Report Appendix F3: Impingement Master Species List - Fishes

F3-2 TaxaName Taxon Common Name
Cottidae Artedius corallinus coralline sculpin Leptocottus armatus Pacific staghorn sculpin Ruscarius creaseri roughcheek sculpin Scorpaenichthys marmoratus cabezon Agonidae Odontopyxis trispinosa pygmy poacher Serranidae Paral abrax clathratus kelp bass Paralabrax nebulifer barred sand bass Carangidae Trachurus symmetricus jack mackerel Haemulidae Anisotremus davidsonii sargo Xenistius californiensis salema Sciaenidae Atractoscion nobilis white seabass Cheilotrema satur

num black croaker Genyonemus lineatus white croaker Menticirrhus undulatus California corbina Seriphus politus queenfish Umbrina roncador yellowfin croaker Kyphosidae Girella nigricans opaleye Medialuna californiensis halfmoon Embioticidae Amphistichus argenteus barred surfperch Brachyistius frenatus kelp perch Cymatogaster aggregata shiner perch Embiotoca jacksoni black perch Embiotocidae surfperch, unid. Hermosilla azurea zebraperch Hyperprosopon argenteum walleye surfperch Micrometrus minimus dwarf perch Phanerodon furcatus white seaperch Rhacochilus toxotes rubberlip seaperch Rhacochilus vacca pile perch Zalembius rosaceus pink seaperch Pomacentridae Chromis punctipinnis blacksmith Hypsypops rubicundus garibaldi Labridae Halichoeres semicinctus rock wrasse Oxyjulis californica senorita Semicossyphus pulcher California sheephead Bathymasteidae Rathbunella alleni stripefin ronquil Clinidae Clinidae kelp blenny, unid. Gibbonsia elegans spotted kelpfish Heterostichus rostratus giant kelpfish Blennidae Hypsoblennius gilberti rockpool blenny Hypsoblennius jenkinsi mussel blenny Gobiesocidae Gobiesox rhessodon California clingfish Sphyraenidae Sphyraena argentea Pacific barracuda (table continued)

### Scattergood Generating Station

IM&E Final Report Appendix F3: Impingement Master Species List - Fishes

F3-3 TaxaName Taxon Common Name
Scombridae Scomber japonicus Pacific chub mackerel Stromateidae Peprilus simillimus Pacific pompano Paralichthydae Citharichthys stigmaeus speckled sanddab Paralichthys californicus California halibut Parophrys vetulus English sole Pleuronectidae Pleuronichthys guttulatus diamond turbot Pleuronichthys ritteri spotted turbot Pleuronichthys verticalis hornyhead turbot Cynoglossidae Symphurus atricaudus California tonguefish