AndreaBozzo/ceres-open-data-index huggingface dataset:
Northern fur seal foraging strategies, Bogoslof and St. Paul Islands 2004-2006

These data are part of North Pacific Research Board Project 414 and Project 514.  Project 514 provided a second year of data collection to the study detailed in Banks et al. (2006; North Pacific Research Board Project 414 Final Report; https://workspace.aoos.org/published/file/48ffae91-0274-4b2b-bc84-5378554070c1/f0414_final_report.pdf?source=catalog&portalId=92), and are summarized together in Springer et al. (2008; North Pacific Research Board Project 514 Final Report; https://workspace.aoos.org/files/2580819/514_Final%20report.pdf?source=catalog&portalId=92

Adult female northern fur seals were captured with hoop nets at 2 breeding colonies (Reef and Vostochni Rookeries) on St. Paul Island, Alaska, and at the single breeding colony on Bogoslof Island, Alaska.  Captures occurred during November, 2004 (St. Paul Island only); July, 2005; October-November, 2005; and July 2006.  20 seals at each island and during each capture period were weighed, measured, flipper tagged, and instrumented with satellite tags (platform transmitter terminals, or PTTs), for a total of 140 deployments.  Seals were also instrumented with archival time-depth recorders (TDRs) during the July, 2005 (n = 20 TDRs at each island) and July, 2006 (n = 17 TDRs at each island) capture periods.  Seals were recaptured, and the instruments recovered, at the end of the each summer.  Data collection began on 11/06/2004 and ended on 10/19/2006; data represent 2 winter (fur seal migration) and 2 summer (fur seal lactation) study seasons.  PTT (model: Kiwisat 101 and 202; Sirtrack Limited, Havelock North, New Zealand) transmissions were programmed to duty cycle at 4 hours on, 8 hours off during the winter study seasons and at 4 hours on, 4 hours off during the summer study seasons.  TDRs (model Mk9; Wildlife Computers, Redmond, WA) sampled depth and temperature every 5 second.
Data are composed of: fur seal capture and instrument deployment histories (1 spreadsheet); seal locations obtained from PTT deployments (4 spreadsheets, each containing all seal locations during a study season); TDR environmental sampling records (65 text files in 4 folders, each file representing a single TDR deployment and each folder representing the deployment island and summer study year for the included TDR files).

Tags: alaska, alaska ecosystems program, alaska fisheries science center, aleutian islands, attendance, behavior, bering sea, bogoslof island, doc/noaa/nmfs/afsc, ecology, foraging ecology, foraging strategy, habitat use, lactation, marine mammals, migration, national marine fisheries service, noaa, north pacific ocean, northern fur seal, pribilof islands, ptt, satellite tag, seals, st. paul island, tdr, time depth recorder, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/RACE/MACE: Results of 2012 Chukchi Sea Acoustic/Trawl Survey

We conducted acoustic-trawl (AT) surveys of the Alaska northern Bering and Chukchi Seas during ice-free periods with a focus on Arctic cod (Boreogadus saida), a key species in Arctic ecosystems.  The mixed species assemblages in the study area required a refinement of standard AT survey methods used in Alaska.  These surveys indicate that midwater fishes are dominated by age-0 Arctic and saffron cod (Eleginus gracilis), capelin (Mallotus villosus), and Pacific herring (Clupea pallasii). Age-0 Arctic cod were distributed north of 70 Â°N, age-0 saffron cod were abundant in coastal areas between 66.5-69.5 Â°N, and Pacific herring were distributed south of 67 Â°N.  Sizeable populations of age-0 Arctic cod were observed in the northern Chukchi Sea, which suggests that this area is an important nursery ground.  However, relatively few larger Arctic cod were observed in this and other surveys of the area, which suggests that either overwinter mortality of age-0 Arctic cod is high, and/or these fish are not retained on the Chukchi shelf.

Tags: acoustic surveys, acoustic trawl surveys, afsc/race/mace: chukchi sea acoustic/trawl survey, alaska fisheries science center, arctic cod (boreogadus saida), arctic zone, chukchi sea, doc/noaa/nmfs/afsc, midwater trawl, national marine fisheries service, noaa, northern bering sea, pacific herring (clupea pallasii), pelagic fish, saffron cod (eleginus gracilis), u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/REFM: North Pacific Groundfish Stock Assessment Chapters, 1998-present

Members of the Alaska Fisheries Science Center's (AFSC) Stock Assessment and Multispecies Assessments Program are responsible for determining the condition of fisheries resources in the U.S. Exclusive Economic Zone using data collected by other AFSC scientists and developing strategies for managing those resources. Their research focuses on updating information on population dynamic trends, estimation of biological yields, and management strategies (as presented in annual assessment documents).

Tags: abundance, alaska, alaska fisheries science center, aleutian islands, bering sea, biomass, commercial fisheries, doc/noaa/nmfs/afsc, effect of fishing, flatfish, groundfish, gulf of alaska, mortality, national marine fisheries service, noaa, rockfish, spawning, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/NMML: Cetacean line-transect survey in the eastern Bering Sea shelf; 1999, 2000, 2002, and 2004

Visual surveys for cetaceans were conducted on the eastern Bering Sea shelf along transect lines, in association with the AFSC.s echo integration trawl surveys for walleye pollock.  Surveys in 2000 and 2004 were from early June to early July, the survey in 2002 was from early June to late July, and the survey in 1999 was from early July to early August.  Searches for cetaceans were conducted from the flying bridge of the NOAA ship Miller Freeman at a platform height of 12 m above the sea surface and survey speed of 18.5 22.0 km/h (10 12 kts).  North south transect lines were spaced 37 km apart and defined by the historical acoustic survey for walleye pollock.  Insufficient funding precluded including cetacean observers on all legs except in 2002. See Friday et al. 2012. Cetacean distribution and abundance in relation to oceanographic domains
on the eastern Bering Sea shelf: 1999-2004 (http://www.sciencedirect.com/science/article/pii/S0967064512000100).

Tags: abundance, alaska fisheries science center, cetacean assessment and ecology program, distribution, doc/noaa/nmfs/afsc, gulf of alaska, line-transect survey, national marine fisheries service, noaa, summer, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Age and Growth of Spotted Sea Trout in the Gulf of Mexico from 1994 to 1996 (NCEI Accession 0156765)

These data sets contain raw and processed data, including collection location (bay)  date, individual data for all trout collected, including FL, TL, whole weight, sex, maturity stage, gonad wt, age, marginal increment, capture method,  GSI from Apalachicola, St. Joseph, St. Andrew, Choctawhatchee, Pensacola, and Perdido Bay systems during May 1994-August 1996.

Tags: 0156765, 156765, 1994-1996, and information services, animals/vertebrates, apalachicola bay, atlantic ocean, biological, biological classification, biological data, choctawhatchee bay, coastal waters of alabama, coastal waters of florida, coastal waters of gulf of mexico, cynoscion nebulosus, data, doc/noaa/nesdis, doc/noaa/nesdis/ncei, doc/noaa/nmfs/sefsc, earth science, fish, fish examination, fish tournament sampling, florida panhandle, gillnets, gulf of america, gulf of mexico, hookline gear, individual fish examination - age, individual fish examination - length, individual fish examination - sex, individual fish examination - weight, laboratatory analysis, length frequency, life history, national centers for environmental information, national environmental satellite, national marine fisheries service, nesdis, noaa, north atlantic ocean, northwest florida, ocean, pensacola bay, perdido bay, perdido bay - florida/alabama, recreational fishery, reproductive analysis, scale, size distribution, southeast fisheries science center, spotted sea trout, spotted seatrout study, st. andrew bay, st. joseph bay, tape measure, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/REFM: Pacific cod Localized Depletion Study

Data from Localized Depletion study for Pacific cod 2001-2005.  Study was conducted using cod pot gear to measure localized abundance of Pacific cod inside and outside of a trawl exclusion zone in the southeast Bering Sea, both before and after the intensive winter season cod trawl fishery.  Data includes early feasibility and gear trials as well as before and after data from each of three years of the experiment. Pot gear was fished in 40 fixed stations in two adjacent areas, one of which was subject to heavy trawling and one within a trawl exclusion zone.  Average of three or more pot catches at each station for each time period (before/after) was computed, the variable for final analysis was the change in catch at each station between the two periods.  There are three main data tables. Cruise data identifies the dates, vessels, and personnel for each charter.  Haul data includes information on location, date, soak time, and identifier for each pot launched, while Catch data includes numbers and weight of cod and bycatch by pot. Assorted small tables define categories for descriptive variables in main tables.  Length and maturity data were collected on a random subset of cod catch. Some CTD profiles and oceanographic data were also collected.

Tags: alaska fisheries science center, bering sea, doc/noaa/nmfs/afsc, effects of fishing, fish abundance surveys, local abundance, localized depletion, national marine fisheries service, noaa, pot gear, u.s. department of commerce, unimak pass
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Bering-Okhotsk Seal Survey (BOSS) Color Imagery (2012-13)

US surveys were conducted of the Bering Sea pack ice for bearded, spotted, ribbon, and ringed seals using digital cameras and thermal imagers mounted in the belly ports of two fixed-wing aircraft from 6 April to 23 May 2012 and 4 April to 9 May 2013. U.S. flights were flown at a target altitude of 1,000 ft (300 m) to maximize the area surveyed while maintaining the required imaging resolution and minimizing the chance of disturbance to seals and other wildlife. A NOAA Twin Otter (N56RF) aircraft housed three FLIR SC645 thermal imagers, which recorded continuous data in the 7.5-13.0 Âµm wavelength. Each thermal imager was paired with a Canon Mark III 1Ds digital single-lens reflex camera fitted with a 100-mm Zeiss lens. All six instruments were mounted in an open-air belly port. The combined thermal swath width was approximately 1,500 ft (470 m) at an altitude of 1,000 ft. A contracted Aero Commander aircraft carried two sets of paired thermal imagers (SC645) and digital SLR cameras (Nikon D3X) and surveyed a maximum swath width of approximately 900 ft (280 m). Color cameras collected images at a 1-1.2 second interval. In 2013 the two aircraft flew a total of 36 surveys covering more than 17,000 nmi (32,090 km) of trackline and collected about 913,000 images. Combined with the 2012 survey effort, the U.S. BOSS team covered 31,000 nmi of trackline and collected 1.8 million images.

Tags: 2012-2013 bering-okhotsk seal survey (boss), alaska, alaska fisheries science center, bearded seal, bering sea, doc/noaa/nmfs/afsc, national marine fisheries service, noaa, ribbon seal, ringed seal, spotted seal, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/REFM: Alaskan Pacific cod 18 Oxygen age validation study

The data (Appendix 1) describe multiple micro samples from 40 specimens.  The data set first provides specimen identification information:
          Specimen ID, estimated age, and AFSC RACE cruise number.  Second, the data describes the milling and physical properties of each milled sampled, up to 42
          samples per specimens: volume and mass.  Finally, the data contain information and results from mass spectrometry analysis measuring d13C and d18O.

Tags: age validation, alaska, alaska fisheries science center, annual seasonal temperature cycles, bering sea, break-and-burn age, doc/noaa/nmfs/afsc, fish age determination, high-resolution microsampling, life history, mass spectrometry, micromilling, national marine fisheries service, noaa, non-federal funding, otolith, stable 18 o, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/MML: Acoustics short-term passive monitoring using sonobuoys in the Gulf of Alaska, Bering, Chukchi, and Western Beaufort Seas, Summer 2007-2018

The Marine Mammal Laboratory (MML) has conducted passive acoustic monitoring in the Gulf of Alaska, Bering, Chukchi, and Western Beaufort Seas to determine spatio-temporal distribution of marine mammals as well as environmental and anthropogenic noise. Species and sounds detected on sonobuoys include fin, blue, bowhead, humpback, killer, gray, minke, sperm, beluga, sei, and North Pacific right whales, walrus, ribbon and bearded seals, fish, and seismic airguns. This short-term passive acoustic monitoring was also used to locate vocalizing species of interest for photo-identification, tagging, and behavioral studies. Recordings are available since 2007 in the Bering Sea, since 2010 in the Chukchi and Beaufort Seas, and in 2013 and 2015 in the Gulf of Alaska. Both omnidirectional and DiFAR sonobuoys have been used. In one year (2009), sonobuoys were deployed opportunistically from an aerial survey plane. All sonobuoys were provided by the United States Navy (Naval Operational Logistics Support Center, Naval Surface Warfare Center, Crane Division, and the Office of the Assistant Secretary of the Navy).

Tags: alaska fisheries science center, bering sea, cetacean assessment and ecology program, chukchi sea, difar, doc/noaa/nmfs/afsc, fall, gulf of alaska, national marine fisheries service, noaa, passive acoustics, seismic airguns, sonobuoy, summer, u.s. department of commerce, western beaufort sea
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/NMML: Bowhead whale aerial surveys and photography near Barrow, Alaska, from 1979-1992

Bowhead whales were documented during their spring migration most years from 1979 to 1992 by biologists from NMML.  This documentation consisted of flying aerial surveys in an area generally north and east of Barrow, Alaska, (avoiding whaling operations to the west) to record sighting information and conduct vertical photography of the whales.  Flight lines were sometimes on systematic transects perpendicular to the nearshore ice edge, providing an offshore distribution of whales (used in calculating the proportion of the population within sighting range of ice-base observation teams).  Often, the flight lines were not prescribed, following instead the openings in sea ice (leads) to maximize opportunities for finding whales.  These latter surveys were designed primarily for aerial photography, which provides information on individual, recognizable whales and, through photogrammetry, provides lengths of whales.

Tags: aerial, alaska, alaska fisheries science center, beaufort sea, cetacean assessment and ecology program, distribution, doc/noaa/nmfs/afsc, legacy data set, migration, national marine fisheries service, noaa, photo-identification, photogrammetry, spring, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/RACE/GAP/Conrath: Reproduction of Groundfish

Data are currently limited or lacking for several federally managed rockfish species of the genus Sebastes found within the Gulf of Alaska. This project is related to the core mission of the Alaska Fisheries Science Center as it will provide data which will refine and improve assessment models for these commercially important species. The initial data collection from this project began in 2009 and is on-going. Samples of a variety of rockfish species have been collected from several years and in several locations throughout the Gulf of Alaska. These data are stored in database files (MS Excel or MS Access).

Tags: abortive maturity, alaska fisheries science center, doc/noaa/nmfs/afsc, groundfish assessment program, gulf of alaska, national marine fisheries service, noaa, pacific ocean perch, reproduction, rockfish, sebastes, sebastes alutus, skip spawning, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/RACE/GAP/McConnaughey: Fishpac Projects-2008-TACOS

The broad scope of the Essential Fish Habitat (EFH) mandate requires an efficient process for describing and mapping the habitat needs of federally managed species.  For example, research indicates surficial sediments affect the distribution and abundance of many groundfish species, yet traditional sampling with grabs and cores is impractical over areas as large as the Bering Sea shelf.  Acoustic tools are suitable for large-scale surveying and show great promise as a substitute for direct-sampling methods, but they have not been proven useful for EFH purposes.

Tags: acoustic sediment classification, afsc/race/gap/mcconnaughey: fishpac projects-2008, alaska fisheries science center, bering sea, doc/noaa/nmfs/afsc, grain size analysis, habitat mapping, multibeam echosounder, national marine fisheries service, noaa, side scan sonar, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/RACE/GAP/McConnaughey: Fishpac Projects-2006-QINSy-WGS84_UTM4_Meters

The broad scope of the Essential Fish Habitat (EFH) mandate requires an efficient process for describing and mapping the habitat needs of federally managed species.  For example, research indicates surficial sediments affect the distribution and abundance of many groundfish species, yet traditional sampling with grabs and cores is impractical over areas as large as the Bering Sea shelf.  Acoustic tools are suitable for large-scale surveying and show great promise as a substitute for direct-sampling methods, but they have not been proven useful for EFH purposes.

Tags: acoustic sediment classification, afsc/race/gap/mcconnaughey: fishpac projects-2006-qinsy, alaska fisheries science center, bering sea, doc/noaa/nmfs/afsc, grain size analysis, habitat mapping, multibeam echosounder, national marine fisheries service, noaa, side scan sonar, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/RACE/GAP/McConnaughey: Bristol Bay Reconnaissance Study-2002-Groundtruth

Environmental variables that are ecologically relevant and easily measured over large areas are useful for modelling species distributions and habitats. Continuous acoustic, sonar-backscatter data convey information about physical properties of the seabed, and hence could be a valuable addition to that suite of variables. The potential utility of acoustic backscatter was tested for improving habitat models of marine species using data from a pilot sidescan-sonar survey conducted from 28 June to 3 July 2002 in the Bristol Bay region of the eastern Bering Sea (EBS). Raw digital backscatter data were processed with QTC SIDEVIEW and CLAMS software to objectively segment bedform based on statistical analysis of the echograms.  Resultant acoustic variables  - Q-values (Q1, Q2, and Q3)-, representing the first three principal components of the data derived from image analysis of backscatter echoes, and a complexity metric (compx) measuring the variance of Q-values in a geographic area - were used in multiple linear regression to model individual species abundance from bottom-trawl survey data.

Tags: acoustic sediment classification, afsc/race/gap/mcconnaughey: bristol bay reconnaissance study-2002, alaska fisheries science center, bering sea, doc/noaa/nmfs/afsc, grain size analysis, national marine fisheries service, noaa, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/RACE/GAP/McConnaughey: Fishpac Projects-2012-Seaboss

The broad scope of the Essential Fish Habitat (EFH) mandate requires an efficient process for describing and mapping the habitat needs of federally managed species.  For example, research indicates surficial sediments affect the distribution and abundance of many groundfish species, yet traditional sampling with grabs and cores is impractical over areas as large as the Bering Sea shelf.  Acoustic tools are suitable for large-scale surveying and show great promise as a substitute for direct-sampling methods, but they have not been proven useful for EFH purposes.

Tags: acoustic sediment classification, afsc/race/gap/mcconnaughey: fishpac projects-2012, alaska fisheries science center, bering sea, doc/noaa/nmfs/afsc, grain size analysis, habitat mapping, multibeam echosounder, national marine fisheries service, noaa, side scan sonar, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/RACE/GAP/McConnaughey: Trawlex Chronic Effects: Side Scan Sonar Mosaic - NE corner of CHPZ1.

Side-scan sonar images were collected using a Klein 2000 system and a 100/500-kHz towed ?sh that also contained a 3.5-kHz pro?ler source. A shipboard fathometer re- cording system was inoperable during the survey. The side-scan data were recorded digitally at a 10-kHz sample rate over a swath width of 100 m. Six swaths of 100-kHz data were anamorphosed, filtered, overlaid and projected to produce a spatially correct, georeferenced image of the seafloor with pixel resolution of 80 cm.

Tags: afsc/race/gap/mcconnaughey:trawlex chronic effects-1997-usgs sidescan, alaska fisheries science center, bering sea, doc/noaa/nmfs/afsc, geomorphology, national marine fisheries service, noaa, side scan sonar, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/ABL: NPRB project 1106 Improved aging estimates for spiny dogfish

The spiny dogfish (Squalus suckleyi, formerly Squalus acanthias, Ebert et al. 2010) is a small, long-lived and slow-growing shark, which is vulnerable to overfishing. Current methods for aging spiny dogfish are based on reading annuli from dorsal fin spines, which erode and may break. For the past 30 years, scientists have used an exponential relationship between the diameter of the spine and the number of annuli to estimate the number of missing annuli. Coupled with between-reader imprecision (CV = 19%), errors in estimation of worn annuli introduce uncertainty and bias into the aging process, resulting in large confidence intervals and imprecise growth, mortality, and recruitment estimates necessary for stock assessments. Using spines and vertebrae collected from spiny dogfish in the Gulf of Alaska, we aged the spines using conventional methods and vertebrae using the vertebral method. Data presented here includes the sample collection information, raw spine and vertebrae age read data and final annuli counts calculated from the multiple reads. This project was funded by NPRB and was a collaborative work between: AFSC age and growth lab, WA Dept Fish and Wildlife, NWFSC age and growth lab, Dr. Walter Bubley and UAF, and Bechtol Research

Tags: age, alaska, alaska fisheries science center, auke bay laboratories, doc/noaa/nmfs/afsc, growth, gulf of alaska, national marine fisheries service, noaa, southeast alaska, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce