Table 1. Texas Parks and Wildlife Department stocking history of Amistad Reservoir, Texas

Size categories are ADL for adult, FGL for fingerling, and FRY for fry.

Binational Fisheries Management Plan

:, = son titi; 4 Year/ Size/
English Espanol Scientific/Cientifico Afio # Tamafio
Northern Pike Lucio del norte Esox lucius 1976 1,030,305 FRY
Muskellunge Lucio Esox masquinongy 1976 700 FGL
Blue Catfish Bagre azul Ictalurus furcatus 1971 5,445 FGL
- - . 1968 100 ADL
White Crappie Carpa blanca Pomoxis annularis 7989 744,491 FGL
[1975 171,300 | __FGL
StripedXWhite Bass Robalo rayado blanco Morone hybrid 1976 173,662 FGL
71982 1,270,000 FGL
[1975 5,250,000 FRY
1976 5,100,000 FRY
Walleye Walleye Stizostedion vitreum 1977 3033000 FRY
1978 5,000,000 FRY.
1975 100,000 FGL
P 1976 200,000 FGL
‘Smallmouth Bass Robalo boca chica Micropterus dolomieu 1978 764.750 FOL
— 1983 200,500 FGL
1967 7,053,750 FGL
1968 928,425 FGL
1969 810,700 FGL
5 1971 446,660 FGL
Largemouth Bass Robalo verde Micropterus salmoides 1972 700 ADL
1973 7,050 ADL
2004 42,077 FGL
—_ 2005 289,666 FGL
1967 22,650 FGL
1968 317,695. FGL
Chane! Catfish Bagre de canal Ietalurus punctatus 1968 Tee
[1972 40,100 FGL
1973 50,550 FGL
1975 52,000 FGL
1976 260,000 FGL
1977 674,220 FGL
1978 596,000 FGL
1979 450,000 FGL
Florida Largemouth Bass Robalo verde florida‘ M. salmoides 1980 214,700 FGL
71992 507,075 FGL
1996 130,768 FGL
1997 500,943 FGL
2004 552,648 FGL
2006 4,519 FGL
1974 212.616 FGL
1976 62,992 FGL
1977 693,107 FGL
1978 204,891 FGL
1979 255,000 FGL
1980 12,000 FGL
1982 107,000 FGL
1984 649,289 FGL
Striped Bass Robalo rayado Morone saxatilis 1986 180,770 FGL
1988 850,000 FGL
4991 332,371 FGL
1992 339,369 FGL
1993 657,937 FGL
1994 1,316,638 FGL
1995 100,259 FGL
1997 67,463 FGL
1998 67,885 FGL
12



Goal 2: Coordinate with the Secretary of Communication and Transport and the Central
SCT of Coahuila.

Objective: Provide assistance with communication and equipment that is used in that
sector (telephones, mail, etc.).

Objective: Provide assistance with transportation infrastructure and materials.
Through coordination with the state government and the municipality, facilitate
maintenance and upgrades to the network of roads and boat ramps that access
Amistad Reservoir.

In reference to the above objective, advice will be given when needed on:
Boat launching, operation and associated rules.

Goal 3: Manage the fisheries of Amistad Reservoir in a manner that would benefit both
sport and commercial fishermen.

Objective: Maintain and enhance, where possible, catch rates and quality of
recreational sport fishing for the following species:

Largemouth Bass (Micropterus salmoides)

Smallmouth Bass (Micropterus dolomieu)

Spotted Bass (Micropterus punctulatus)

Striped Bass (Morone saxatilis)

White Bass (Morone chrysops)

White Crappie (Pomoxis annularis)

Channel Catfish (/ctalurus punctatus)

Blue Catfish (Rio Grande strain) (/ctalurus furcatus spp.)
Flathead Catfish (Py/odictis olivaris)

Task: Monitor status of fish species through scientific fish population surveys
and make efforts to standardize sampling operations between US, Texas and
Mexico, and whenever possible, to improve the quality and quantity of fish
population data (TPWD, SAGARPA, Subdelegacion de Pesca, State of Coahuila,
NPS).

Task: Stock as necessary to maintain healthy populations and enhance the
fishery (TPWD, SAGARPA, NPS). Note: Texas will stock fish when TPWD
criteria are met, and Mexico will stock by their criteria. However, both agree to
seek input from each other on the development of stocking plans and to notify
each other when stocking actions occur. All agencies agree to prohibit
unapproved private stocking of fish into Amistad Reservoir. No private stocking
is allowed unless sanctioned by agency. Stocking criteria for TPWD are provided
in Appendix V.

Binational Fisheries Management Plan 33


organizers, and local, State, Federal and Mexican officials, are interested in reducing fish
mortality during these tournaments.

Within Mexico, sport fishing, as authorized by SAGARPA, is conducted by
fishermen from both countries. The species preferred by the sport fishermen are black
bass and striped bass. However, this activity has been marginally practiced due to the
lack of infrastructure. This problem requires that the state tourism agency, Instituto
Estatal de Turismo, and the Department of Communications and Transportation,
Secretaria de Comunicaciones y Transportes, coordinate their efforts. It is also necessary
that Mexican sport fishermen go through some training to learn how to fish in
tournaments and how to manage and promote tournaments and be more active in the
management and promotions of tournaments, for this activity is also a good source of
income in the northern region of the state of Coahuila.

Despite these difficulties, in recent years sport fishing in Mexico has undergone a
solid expansion. This is shown by the number of permits issued by the regional office in
Ciudad Acuiia, which increased from 1,479 in 1995 to 2,670 in 2000. The increase
includes both daily and monthly fishing permits (See Table 6).

In the state of Coahuila there are close to 20 hunting, shooting and fishing clubs.
Additionally there are social organizations like the Lions and the Rotary Clubs, all of
which organize fishing tournaments. It is the right of the sub-delegation of fishing,
Subdelegacion de Pesca, to regulate and control fishing tournaments, in order to
contribute to recreation and leisure of the population within the state. On the Mexico side
of Amistad Reservoir, approximately 10 tournaments per year took place from 1995-
2000, consisting of approximately 70 participants each.

The present practice of “Catch and Release” and its increasing popularity have
probably reduced overall harvest by anglers. Creel surveys should be conducted to
determine the current level of harvest. Data from tournaments held for largemouth bass
should be collected to allow catch rates to be monitored. Trend data will allow the
determination of increases or decreases.

Delayed mortality from catch and release tournaments may present a potential
problem. Seasonal adjustments should be made in scheduling tournaments to avoid
periods of high water and air temperatures. High delayed mortality has been documented
from tournaments held during the summer. As a alternative to “Catch/Hold and Release”
tournaments, paper (recorded length and/or photo) tournaments should be considered
during the summer season.

Fishing access

The fishing access on the United States side of the reservoir is considered very good;
however, the access on the Mexico side of the reservoir is limited to one high-water ramp
located at Playa Tlaloc. This site provides the only current public access to the reservoir.
The State of Coahuila has considered constructing an additional ramp; however, the

Binational Fisheries Management Plan 29



LITERATURE CITED

Axon, J. R. and D. K. Whitehurst. 1985. Striped bass management in lakes with
emphasis on management problems. Trans. Am. Fish. Soc. 114:8-11.

Bettoli, P.W., R. Osborne, and S. Owens. 1995. A review of the literature pertaining to
the effects of striped bass on other fish populations. Final Rep. Tenn. Coop. Fish Res.
Unit, Cookville, Tenn. 10pp.

Combs, D. L. 1979, Food habits of adult striped bass from Keystone Reservoir and its
tail waters. Proc. Annu. Conf. Southeast. Assoc. Fish and Wild. Agencies. 32:571-575.

Combs, D. L. 1982. Fish population changes in Keystone Reservoir fourteen years after
striped bass introductions. Proc. Annu. Conf. Southeast. Assoc. Fish and Wild. Agencies.
34:167-174.

Harper, J. L. and H. E. Namminga. 1986. Fish population trends in Texoma Reservoir
following establishment of striped bass. Pages 156-165 in G. E. Hall and M. J. Van Den
Avyle, eds. Reservoir fisheries management: strategies for the 1980's. Am. Fish. Soc.
South, Div., Res. Comm. Bethesda, Md.

Jenkins, R. M. and D. J. Morais. 1978. Prey-predator relations in predator-stocking-
evaluation reservoirs. Proc. Annu. Conf. Southeast. Assoc. Fish and Wild. Agencies.
30:141-157.

Kurzawski, Ken. 2001. A bass act. Texas Parks and Wildlife Magazine. 59(1): 24-29.
Austin, Texas.

Nash, V. E., W. E. Hayes, R. L. Self and J. P. Kirk. 1987. Effects of striped bass
introduction in Lake Watertree, South Carolina. Proc. Annu. Conf. Southeast. Assoc.
Fish and Wild. Agencies. 41:48-54.

Orbe-Mendoza, A. A. and D. Hernandez-Montafio. 2000. Evaluacion Bioldégico-
Pesquera de la Presa La Amistad, Coahuila, Méx. — Texas, E.U. Informe Técnico.
Instituto Nacional de la Pesca. México. 25 pp.

Schramm, H. L., J. E. Kraai, and C. R. Munger. 2001. Intensive stocking of striped bass
to restructure a gizzard shad population in a eutrophic Texas reservoir. Proc. Annu.
Conf. Southeast. Assoc. Fish and Wild. Agencies. 53:180-192.

Texas Natural Heritage Program. 1995. Biological Survey of Lake Amistad Recreation
Site. Texas Parks and Wildlife Department. Resource Protection Division. Austin,
Texas.

Binational Fisheries Management Plan 38



Commercial fishing in Amistad Reservoir is regulated by the Federal Fishing Law
and its regulations under Article 42. Those interested in obtaining commercial fishing
permits must comply with the following requirements:

I. ) Written request containing:
a) target species name
b) vessel name, description, and dimensions
c) fishing area, base port, and launch locations
IL.) Vessel registration certificate
ILL.) Production and operation plan.

Since 1980, the Amistad Fishing Cooperative has renewed their permit every two
years in compliance with the established rules.

Article 45 requires fish cooperatives to:

¢ only catch authorized species within areas determined by the Secretary.

e fish only with approved boats and methods.

¢ assist with the preservation of the environment and conservation of species so as to
support stocking programs in natural habitats according to the terms and conditions of
the Secretary.

* present to the Fisheries Subdelegation a monthly report on each cooperative
member’s catch.

The Amistad Fishing Cooperative includes 36 members and 35 vessels. The
minimum catch size is 25 centimeters (9.85 inches) and a commercial fishing permit is
required, along with approved fishing methods.

Binational Fisheries Management Plan 6


Objective
e Improve angler knowledge and ease of access to information on fishing requirements
at Amistad Reservoir through a web-based system.

Methods

SAGARPA, TPWD, NPS, and the State of Coahuila will develop links between all
current web pages. All web pages will contain a location for information on the
Binational Fisheries Management Program. The common informational fact sheet, to be
developed in project six, will be placed on all cooperating agencies web pages.

Project Title: Improve the coordination and data sharing of water quality
monitoring activities on Amistad Reservoir.

Abstract

Amistad Reservoir is one of the largest and most popular bass fishing resources in the
state of Texas. The Binational Fisheries Management Plan for Amistad Reservoir has
identified that information concerning water quality is crucial to the proper management
and protection of the fisheries resource. Coordination of water quality monitoring
between Mexico and the US is needed. Current water quality monitoring programs
conducted by CILA, CNA, TCEQ, IBWC, NPS, and USGS needs to be identified. Data
available from current water quality monitoring programs needs to be identified and
shared amongst cooperating agencies.

Statement

Both the Texas Commission on Environmental Quality (TCEQ) and the US Geological
Survey (USGS) have active water quality monitoring programs in and around Amistad
Reservoir. Both agencies have conducted sampling in the major tributaries to the
reservoir (the Rio Grande, and Pecos and Devils rivers), as well as the Rio Grande below
the dam. TCEQ also samples the reservoir at three locations for field parameters,
nutrients, chlorophyll and bacteria (Purchase et al, 2001). The USGS sites on the Pecos
River and Rio Grande have been part of the Rio Grande NASQAN (National Stream
Quality Accounting Network) monitoring program since 1996. These sites are sampled 6
to 8 times a year for a variety of constituents, including nutrients, major ions, water
soluble pesticides and trace elements.

Through the Texas Clean Rivers Program (CRP), the IBWC coordinates monitoring
activities in the Rio Grande Basin by supporting efforts of monitoring partners including
TCEQ, USGS, and the NPS. This program supports special projects, acts as a clearing
house for data, provides a point of contact for issues in the Rio Grande Basin and
provides annual summary reports (Purchase et al, 2001).

Objectives

¢ Maintain and enhance quality of recreational sport fishing.

e Maintain a healthy sustainable commercial fishery on the Mexico side of the Amistad
Reservoir.

Binational Fisheries Management Plan 66


36 CFR Part 2.3 (Fishing) provides the following general guidance: “Except in
designated areas or as provided in this section, fishing shall be in accordance with the
laws and regulations of the State within whose exterior boundaries a park or portion
thereof is located.” 36 CRR Part 2.3(d)(4) prohibits “Commercial fishing, except where
specifically authorized by Federal statutory law.”

36 CFR Part 7.79 is a special regulation for Amistad National Recreation Area that
includes the following language in Subpart b: "Unless otherwise designated, fishing in a
manner authorized under applicable State law is allowed". April 16, 1969.

Superintendent’s Compendium to 36 CFR - \n accordance with 36 CFR Part 1.7(b), the
compendium establishes designations, closures, permit requirements and other
restrictions under the discretionary authority of the Superintendent of Amistad National
Recreation Area. The compendium identifies fishing under section 2.3. This section
provides closure notices for certain areas of the reservoir. Under section 2.14, disposing
of fish remains is covered along with the designation of fish cleaning stations.

US Fish & Wildlife Service

Policy for Conserving Species Listed or Proposed for Listing Under the

Endangered Species Act While Providing and Enhancing Recreational Fisheries
Opportunities - This policy address the conservation needs of species listed, or proposed
to be listed, under the Endangered Species Act (ESA) while providing for the
continuation and enhancement of recreational fisheries. This policy identifies measures
the Service will take to ensure consistency in the administration of the ESA, promote
collaboration with other Federal, State, and Tribal fisheries managers, and improve and
increase efforts to inform nonfederal entities of the requirements of the ESA while
enhancing recreational fisheries. June 3, 1996.

16 U.S.C. 742a-742j — The Fish and Wildlife Act of August 8, 1956, as frequently
amended, establishes a comprehensive national fish, shellfish, and wildlife resources.
policy with emphasis on the commercial fishing industry but also with a direction to
administer the Act with regard to the inherent right of every citizen and resident to fish
for pleasure, enjoyment, and betterment and to maintain and increase public opportunities
for recreational use of fish and wildlife resources.

16 U.S.C. 661-667e — The Fish and Wildlife Coordination Act of 1934, as frequently
amended, authorizes the Secretaries of Agriculture and Commerce to provide assistance
to and cooperate with Federal and State agencies to protect, rear, stock, and increase the
supply of game and fur-bearing animals. The Act also authorizes the Fish and Wildlife
Service to prepare plans to protect wildlife resources, the completion of wildlife surveys
on public lands, and requires consultation with the Fish and Wildlife Service where the
"waters of any stream or other body of water are proposed or authorized, permitted or
licensed to be impounded, diverted . . . or otherwise controlled or modified" by any
agency under a Federal permit or license.

Binational Fisheries Management Plan 48



Appendix IV. Overview of management authorities and policies

United States
National Park Service

16 USC, Chapter 1, Section I. Organic Act - This legislative act created the NPS and
directed that the mandate of all units of the NPS would be to "Conserve the scenery and
the natural and historic objects and the wild life therein and to provide for the enjoyment
of the same in such manner and by such means as will leave them unimpaired for the
enjoyment of future generations.” August 25, 1916.

16 USC-460-F FF. Public Law 101-628, SEC. 505 - This legislative act authorized the
establishment of Amistad National Recreation Area, "In order to (1) provide for public
outdoor recreation use and enjoyment of the lands and waters associated with the United
States portion of the reservoir known as Lake Amistad, located on the boundary between
the State of Texas and Mexico, and (2) protect the scenic, scientific, cultural, and other
value contributing to the public enjoyment of such lands and waters."

SEC. 506(d)(1) of the act states "The Secretary shall permit hunting and fishing on lands
and waters under the Secretary's jurisdiction within the recreation area in accordance with
applicable Federal and State law. The Secretary may designate zones where, and
establish periods when, hunting or fishing will not be permitted for reasons of public
safety, administration, fish and wildlife management, or public use and enjoyment." (2)
“Except in emergencies any regulations issued by the Secretary under this subsection
shall be put into effect only after consultation with the appropriate State agencies
responsible for hunting and fishing activities.” Nov. 28, 1990.

NPS Management Policies 2001 - This is the basic Service-wide policy document of the
National Park Service. Chapter 8 (Use of the Parks), section 8.2.2.5 (Fishing) provides
guidance on the management of recreational and commercial fishing. Chapter 4 (Harvest
of Plants and Animals by the Public) provides information on stocking of fish.

Director’s Orders - There are currently 94 Director’s Orders that further specify how the
NPS policies will be applied to the management of parks and park resources. Director’s
Order 12 (Conservation Planning, Environmental Impact Analysis, and Decision Making)
covers the environmental compliance process. Director’s Order 77 (Natural Resource
Protection) provides guidance in fisheries management for NPS units.

Binational Fisheries Management Plan 46


Chapter V — Administration.

¢ The fishing by-law contains:
First title — Federal dispositions.
Second title — General fishing regulations.
Third title - Aquaculture.
Fourth title - Termination of permits, concessions and authorizations.
Fifth title — Inspections, violations and sanctions.
Sixth title - Impugnation means.

NOM-017-94 regulates sport fishing.
[See this appendix for outline of the Regulatory Process]

NOM-010-PESC-1993 establishes the requirements for the importation of live aquatic
animals within national territory. (DOF. 16-VIII-1993). It considers:

¢ Species of commercial and recreational use.

¢ Minimum catch sizes

© Quantity and characteristics of the catches.

e Restricted areas to fishing

The National Institute of Fishing, Instituto Nacional de la Pesca, is an administrative
organization, not under direct control of SAGARPA, whose task is to conduct research to
provide the scientific and technical knowledge needed for the proper management and
conservation of fishing and aquatic resources and the environment. The /nstituto
Nacional de la Pesca conducts research and oversees the fishery harvest at Amistad.

Binational Fisheries Management Plan 52



Appendix VII. Descriptions of future projects/studies at Amistad
Reservoir

Project Title: Determine the total economic value of fishery resources of
Amistad Reservoir.

Abstract

Amistad Reservoir is one of the largest and most popular bass fishing resources in the
state of Texas. The Binational Fisheries Management Plan for Amistad Reservoir has
identified that information concerning the economic impact that fishing has on Mexico
and Texas is crucial to the proper management and protection of the fisheries resource.
An angler survey including an economic analysis has never been conducted at Amistad
Reservoir. Conducting this type survey would also provide an opportunity to collect
information needed to better understand angler socio-demographic characteristics,
attitudes, opinions, and preferences.

Background

Fishing is one of the largest recreational uses of Amistad Reservoir. The trophy bass
fishery at Amistad attracts around 150 organized bass tournaments to the reservoir
annually. Most tournaments occur on the United States side, but approximately 10 occur
on the Mexico side, most involving fishing clubs from Saltillo, the capital of the state of
Coahuila, Mexico. The number of fishing tournaments documented on the US side from
2002 to 2006 included the following: 2002= 155, 2003= 156, 2004= 138, 2005= 146,
and 2006= 148. At times, when 2 or 3 tournaments occur on the same weekend, there
may be as many as 500 tournament boats on the water. The Texas Parks and Wildlife
Department considers Amistad Reservoir to be one of the top trophy bass reservoirs in
the state of Texas.

One of the highest priorities for the Binational Fisheries Management Plan is to complete
an economic analysis of fisheries resources. Many unknowns exist in respect to the
financial benefits fishing at Amistad provides to the state of Texas and the state of
Coahuila in Mexico. The reservoir was impounded to increase water supply for
agriculture, industry, and domestic use; to regulate stream flow and flood control; and to
provide for water-based outdoor recreation. Since impoundment, the economic
importance of fishing activities to the local area, Mexico, and Texas have increased, but
agricultural and municipal uses remain the highest priorities for water resource allocation.
In the future, increased demand for water has the potential to reduce water levels, which
could negatively affect fish populations, decrease visitation, and reduce the economic
impacts that the fisheries resource provides. In order for decision makers to give
appropriate consideration to the importance of the fishery resources and water-based
recreational activities, an economic analysis is needed to establish the total value of the
fishery at Amistad Reservoir. A similar study in Texas showed that Toledo Bend
Reservoir had a one-year recreational value of $38 million (Thailing and Ditton 2001).

Need
An economic analysis of fishing activities at Amistad is needed to provide information to
local city management, the public and responsible agencies on the importance of

Binational Fisheries Management Plan 56


Appendix Ill. Agency organizational charts
SAGARPA

SECRETARY OF AGRICULTURE,
LIVESTOCK, RURAL DEVELOPMENT,
FISHING AND NUTRITION

t 4
FISHERIES NATIONAL FISHERIES
SUBSECRETARY INSTITUTE

|

FISHERIES
MANAGEMENT
AGENCY

National Park Service Organizational Chart

Secretary of the Interior

Deputy Secretary of the Interior

4

Assistant Secretary
Fish, Wildlife, and Parks

National Park Service Director

Intermountain Region Director

Deputy Regional Directors

’

Superintendent
Amistad National Recreation Area

Binational Fisheries Management Plan


For commercial fishing:

¢ Review existing permits and issue permits to individuals and institutions that fulfill
all legal requirements.

¢ Report upon landing: fish sizes, the catch quantity, and fish behavior in the reservoir.

© Report monthly economic revenue generated through fishing.

¢ Keep updated records of the size of the population engaged in fishing, and of the
existing fleets and infrastructure.

For sport fishing:
¢ Issue permits to individuals who ask for them and who fulfill all legal requirements.
¢ Authorize sport fishing tournaments requested by clubs.

Cooperative Accords Reached in the Past

To avoid conflicts between the interested parties, agreements have been reached with
the cooperatives and clubs about fishing in the reservoir.

In 1980, the former Secretaria de Pesca through the Coahuila delegation created an
agreement between the commercial fishermen in the fishing cooperatives and the sport
fishermen from different fishing clubs in order to improve the reservoir fishery. The
following agreements were made.

The Fishing Cooperatives:

¢ Must display and renew the 2-year commercial fishing permit from the Secretaria de
Pesca.

¢ The authorized fishing areas are from Buoy 9 to where the reservoir meets the Rio
Grande, as well as the Mexican waters to 10km (6 miles) above the mouth of the
Pecos River.

¢ Commercial fishing will only take place from Monday through Friday.

¢ Commercial fishing is authorized for all species except for bass, which are reserved
for sport fishing.

e The Secretary will be notified of catch volumes each month.

¢ Assist and supply samples for scientific studies on species of commercial interest and
temporary capture of sport species for these studies.

Sport Fisherman:

¢ Will have an individual sport fishing license and boat permit issued by the Secretaria
de Pesca.

¢ May only have tournaments Saturdays and Sundays.

e May only use authorized fishing methods.

e The possession limit per person in two days is five each per species, with no more
than three different species per day, and may reach the three day limit on Saturday
and Sunday.

Binational Fisheries Management Plan 16


Task: Monitor harvest by sports anglers (TPWD, NPS, SAGARPA, State of
Coahuila).

Task: Establish a common form for recording fishing tournament catches
(TPWD, NPS, SAGARPA, State of Coahuila).

Task: Reduce sport fishing tournament mortality by providing improved
management facilities and protocols (NPS, TPWD, SAGARPA, State of
Coahuila).

Task: Modify harvest regulations as necessary to maintain healthy sustainable
fisheries and to achieve management objectives (TPWD, SAGARPA, NPS).

Task: Share all information and data on the status and condition of the sports
fishery (NPS, TPWD, SAGARPA, INP, State of Coahuila). See Appendix II for
contact information.

Objective: Maintain a healthy sustainable commercial fishery which supports the
current number of commercial fishermen for the following species:

Aplondinotus grunniens Carpoides carpio
Catostomus comersonni Ictiobus prinellus
Cyprinus carpio Dorosoma cepedianum
Tilapis ssp Noemigonus crysoleucas
Tctalurus furcatus Pimephales promelas
Ictalurus catus Lipisosteus osseus
Ameiurus melas Lipisosteus oculatus
Ameiurus nebulosas Lepomis macrochirus
Ictalurus punctatus Lepomis microlopus

Pylodictis olivaris

Task: Monitor harvest by commercial fishermen (SAGARPA and State of
Coahuila).

Task: Stock these commercially harvested species as necessary to maintain
fishery stocks. The introduction of any other species will require the prior
approval of all signatories to this agreement.

Task: Share commercial harvest information with all signatories to the
agreement (SAGARPA and State of Coahuila). See Appendix II for agency
contacts.

Goal 4: Document the economic value of the Amistad Reservoir recreational and
commercial fishery and measure angler satisfaction with the recreational fishery.

Binational Fisheries Management Plan 34


Objective

¢ Develop a common informational fact sheet on boat access, fees, facilities, and basic
fishing regulations to educate anglers on legal requirements when fishing Amistad
Reservoir.

Methods

The State of Coahuila (Department of Tourism), SAGARPA, TPWD, and the NPS will
work cooperatively to develop the one page informational fact sheet. One of the highest
priorities will be to provide information on where anglers can acquire Mexico fishing
licenses.

Project Title: Establish a common form for recording fishing tournament
catches.

Abstract

Amistad Reservoir hosts around 150 bass tournaments a year. Angler catch rates, size of
fish, and weight of fish are obtained during tournament activities. It is very important
that this information is sent to TPWD, SAGARPA, and the NPS for analysis. Most
angler catch information from tournaments is recorded on bass club forms that don't
provide consistent data. An official standardized data form for bass tournaments will
improve the monitoring of sport fish harvest at Amistad Reservoir.

Objectives
¢ Maintain and enhance catch rates and quality of recreational sport fishing.
¢ Monitor harvest by sports anglers.

Methods

SAGARPA, TPWD, and the NPS will establish a one page common form for recording
fishing tournament catches on Amistad Reservoir. All cooperating agencies will take
necessary procedures to receive approval for the use of the form in the public sector.

Project Title: Develop a common web page and links for public information
about the reservoir and its recreational opportunities.

Abstract

SAGARPA, TPWD, NPS and the State of Coahuila all have web pages. There is a need
to link all these pages to provide the public with an easy way to access all information
available on the reservoir and its recreational opportunities. Developing a common web-
page that describes information on boat access, fishing, fees, facilities available, license
procedures and locations for purchasing licenses, and basic regulations will further assist
in educating anglers at Amistad Reservoir.

Binational Fisheries Management Plan 65



Table of Contents

INTRODUCTION...
Reservoir history and its purposes
Environmental description....
Types of activities that occur on the reservoir

Fishing ...
Other Activities.
Commercial fishing ...
Current designations affecting the re reservoir
US Designations
Mexico Designation:
US — Mexico Joint Designations/Treaty.
Agency management plans that affect reservoir management .

Texas Commission on Environmental Quality (TCEQ).
National Park Service ....

Texas Parks and Wildlife Department (Inland Fisheries)
Secretaria de Agricultura, Ganaderia, Desarrollo Rural, Pesca y Alimentacion (:

Agreements between management agencies and groups
United States .

Binational management plan purpose and need.
Process used to develop cooperative plan.
AGENCY MISSION STATEMENTS ..
United States
National Park Service .
US Fish and Wildlife Service
Texas Parks and Wildlife Department
International Boundary & Water Commission .
Mexico
SAGARPA..

COVESCOCSCVCIIYNHUNU~UABRHRERERREWWWN Hm

State of Coahuil:
HISTORY OF FISHERY MANAGE)
State of Texas.....
Species manage
Stocking history
Harvest regulation histor
MEXICO... eee
Species manage
Stocking History
Harvest regulation history
Cooperative Accords Reached in the Past...

NT ON THE RESERVOIR

Binational Fisheries Management Plan iii



Methods

Work with federal and state agencies involved in monitoring water quality and
determining contamination threats. Develop list of contamination issues that could
potentially impact fishery resources at Amistad Reservoir.

References:

Miyamota, S, L.B. Fenn and D. Swietlik. 1995. Flow, Salts, and Trace Elements in the
Rio Grande: A Review, Texas A&M University, Texas Water Resources Institute, TR-
169, 30pp.

Lee, R.W. and J.T. Wilson. 1997. Trace Elements and Organic Compounds Associated
with Riverbed Sediments in the Rio Grande/Rio Bravo Basin, Mexico and Texas. US
Geological Survey Fact Sheet, FS-098-97, 6pp.

Shertz, T.L. 1990. Trends in Water-Quality Data in Texas, US Geological Survey Water
Resources Investigations Report 89-4178, 177pp.

Project Title: Determine actual long-term institutional monitoring (INA,
TPWD, NPS, SAGARPA).

Project identified for development in 2004-2005.
Project Title: Conduct experimental studies on the effects of commercial

nets on sport fishes (INA, SAGARPA).

Project identified for development in 2004-2005.

Binational Fisheries Management Plan 68

GO U.S. GOVERNMENT PRINTING OFFICE: 2006 — 562-140 / 45008 Region No. 8



Methods

The cooperating agencies involved directly with the Binational Fisheries Management
Plan will begin developing contact information on all water quality monitoring projects
being conducted in the watershed of Amistad Reservoir. All information will be
referenced and linked to the web page to be developed in Project 8.

Reference

Purchase, C.E., et al., Water Resources Scoping Report. 2001. Technical Report
NPS/NRWRD/NRTR-2001/295. Amistad National Recreation Area. National Park
Service.

Project Title: Evaluate contamination sources and issues.

Abstract

Cooperating agencies will work together to evaluate contamination sources and issues
impacting fishery resources at Amistad Reservoir. Depending on threats, TPWD, NPS,
and SAGARPA will work with CILA, CNA, TCEQ, IBWC, and USGS in identifying
and resolving possible contamination issues with fishery resources.

Project Statement

Salinity in the Rio Grande above and below Amistad and in the Pecos River has been
increasing since at least 1975 (Schertz, 1990). During the growing season, (March 15 to
September 15) salinity levels can triple due to irrigation return flows. With increasing
salinity in its tributaries, Amistad Reservoir has had rising salinity since 1983 (Miyamoto
et al, 1995).

Two studies have looked at trends in metals in sediments. A USGS study analyzed trends
using data collected by TCEQ sampling and other assessments between 1970 and 1994
(Lee and Wilson, 1997). This analysis indicates that most trace elements levels appear to
be steady, although mercury concentrations are increasing in the Pecos River, the Rio
Grande above Amistad, and in Amistad Reservoir. Selenium is also increasing in
Amistad Reservoir. The only trace elements with a decreasing trend are copper in
Amistad Reservoir and silver in the Pecos River (Lee and Wilson, 1997).

The pollutants DDT, DDE and DDD have been detected at low concentrations in the
reservoir, with decreasing levels since the early 1970's, which follows the trend
nationwide after the ban on DDT (Lee and Wilson, 1997).

Objectives

¢ Maintain and enhance quality of recreational sport fishing.

¢ Maintain a healthy sustainable commercial fishery on the Mexico side of Amistad
Reservoir.

Binational Fisheries Management Plan 67





1200.00

1180.00

1160.00

; 1920.00

2 1100.00

= 1080.00

WATER LEVEL

= 1060.00

1040.00 +

1020.00 +

1940.00

Figure 2. IBWC water surface elevation for Amistad Reservoir

AMISTAD RESERVOIR LEVEL
1968 - 2006

Highest.
1935.03
Nowis74

‘Lowest
a en On eS a  )._! SO
‘hugitoos ~

YEAR

Binational Fisheries Management Plan

27



4999 67,800 [| FGL |
2000 436,717 |___FGL
1
Striped Bass (cont) ee 133.800 =
2005 318,908 FGL
2006 120,085 FGL

A list of stocking criteria by species is provided in Appendix V.

Harvest regulation history

The history of the state of Texas regulatory actions in the management of fish stocks
at Amistad Reservoir are shown in Table 2. Regulations on the harvest of some species
have been in place since the reservoir was first filled in 1969.

Table 2. Progression of US harvest regulations for game fish at Amistad Reservoir

Year/ MIN LENGTH/ | BAG LIMIT/
English Espafiol Scientific/Cientifico Afio TALLA LIMITE POR
MINIMA BOLSA
1969 ‘one/ninguno | none/ninguno
White Crappie’ arpa blanca/ Pomoxis annularis/ 1986-87 noné/ninguno 25
Black Crappie Carpa negra Pomoxis nigromacultatus 7990-91 10in/25.4om 25
current/actual same/mismo same/mismo
1969 none/ninguno | ~none/ninguno
White Bass Robalo rayado Morone chrysops 7988-89 10in/25.4cm 25
lanco -
CurrenVactual| _same/mismo | same/mismo
1969 _nonejninguno 5
1987-88 16in/40.6om 10
Walleye Walleye Stizostedion vitreum 1988-89 16in/40.6om 5
1999-00 2<16in/40.60m 5
currenvactual_| sameJmismo | Samelmismo
1969 none/ninguno” | none/ninguno
Smallmouth Bass Rébalo boca chica Micropterus dolomiew 7991-92 14in/35.6cm 5
CurrenV/actual_| same/mismo|_same/mismo
1969 1Oin/25.4om 10
Largemouth Bass Robalo verde Micropterus salmoides 1086-87 14in/35.60m 5
current/actual same/mismo same/mismo
1969 Tone/ninguno 25
Channel Catfish? Bagre de canal’. —_—_—otalurus punctatus/ 1978-79 gin/22.86m 25
Blue Catfish Bagre azul Ietalurus furcatus 1995-96 72in/30.50m 25
current/actual_| _ same/mismo | _samelmismo
{969 one/ninguno | _none/ninguno
. 7991-93 12in/30.50m 5
Spotted Bass Rébalo moteada —Micropterus punctulatus sere an 2
Gurrentiactual_|~ same/mismo | same/mismo
1969 none/ninguno | _none/ninguno
1978-79 none/ninguno 3
Striped Bass Rébalo rayado Morone saxatiis, 1979-80 none/ninguno 5
1988-89 1in/45.7cm 5
current/actual_| _same/mismo | _sameimismo
, 1969 [_“none/ninguno. 5
1978-78 9in/22.80m 5
Flathead catfish Bagre piltontle Pylodictis olivaris ees jane 3
1996-96 18in/45.7om 5
current/actual same/mismo same/mismo.

Possession limit is twice the statewide daily bag limit. There are no exceptions to the
statewide possession limits in fresh water. Fish stored by a person at their permanent
residence do not apply to their possession limit.

Binational Fisheries Management Plan 13



pupfish (Cyprinodon eximius); blotched gambusia (Gambusia senilis); and Rio Grande
darter (Etheostoma grahami). Of these eight State-listed species, three (shovelnose
sturgeon, Rio Grande silvery minnow, and blotched gambusia) are considered extirpated
from Texas, and the Rio Grande bluntnose shiner is considered extinct.

See NOM-059-ECOL-1994, that lists the plants and wildlife species, terrestrial and
aquatic, that are rare, endemic, threatened, in danger of extinction, and subject to special
protection in Mexico (DOF. 16-V-94).

The major extinct species on the Mexican side, specifically in the State of Coahuila
are:

Mexican wolf
Pronghorn antelope
Bison*

Grizzly bear

Elk*

Bighorn sheep

* Reintroduced species in the State of Coahuila

Binational Fisheries Management Plan 19



Stocking History

Mexico initiated stocking activities in Amistad Reservoir in 1994 as part of a
statewide aquaculture program to develop and improve the commercial fishing industry
and to provide alternative food sources to the people of Coahuila. Recorded stockings by
SEMARNAP and SAGARPA are shown in Table 4.

Bass and catfish have been the subject of the majority of the stocking efforts, with
bass planting each year since 1994. Catfish were stocked in 1995, 1998, 2000 and 2001.
Tilapia were stocked in 1997 and 1998, however there has not been much impact since it
is a tropical species that doesn’t adequately develop in a deep, cold-water reservoir. It’s
important to note that the stocking was with fingerlings between 4 and 8 inches.

Table 4. Mexican fish stocking data from 1994-2002 for Amistad Reservoir, Ciudad Acufia,
Subdelegacion de Pesca del Estado de Coahuila

YEAR | SPECIES
BASS CATFISH | TILAPIA CARP TOTAL

1994 30,000 | 30,000
1995 40,000] 80,000 120,000
1996 30,000 15,000 45,000
1997 19,500 26,000 10,000 20,000 75,500
1998 50,000 30,000 21,000 101,000
1999 25,000 25,000
2000 5,000 5,000 |
2001 16,500 7,000 3,000 26,500 |
2002 7,000 30,000 37,000

TOTAL 223,000, 188,000 31,000 23,000 465,000

Harvest regulation history

Amistad Reservoir is identified nationally and internationally as a symbol of
collaboration and harmonious coexistence. The building of this reservoir at the end of the
sixties made possible the formation of a geographic water resource, which represents a
patrimony and a resource for the economic, social and cultural development of the
region.

Commercial fishing in Amistad Reservoir began in 1980 with the formation of the
cooperative La Amistad, which was followed later by the collective fishing farm Unidad
de Produccién Pesquera Ejidal “Alfredo V. Bonfil” and whose activities are regulated by
the current fishing law. Gutting and filleting are the processing activities that these two
fishing organizations do; in the case of carp, there is the additional option of slices with
spines.

The manual of procedures for fishing regulations includes the following guidelines
for fisheries management.

Binational Fisheries Management Plan 15



MAJOR ISSUES OF CONCERN

Recreational - commercial fisheries conflicts

Currently, there are two differing goals of fisheries management in effect for the US
and Mexico at Amistad Reservoir. The TPWD and NPS are charged with monitoring,
protection, and improvement of the sports fishery. All management and stocking
programs presently conducted by these two agencies are aimed at the sports fishery. The
major sport species include largemouth bass, channel catfish, blue catfish, striped bass,
smallmouth bass and white crappie.

Conversely, while Mexico actively manages for enhanced sport fishing of black bass
through stockings and regulations, the goals also target monitoring and protecting the
commercial fishery. Currently, certain species found in Amistad are subject to
commercial harvest. Non-designated species for commercial harvest will not be
commercially sold. See Table 3 for commercial, sport, and commercial/sport species.

There is a perception that the removal of species such as carp, buffalo, carp suckers
and tilapia by commercial netting may actually benefit the sports fishery found at
Amistad. Conversely, the removal of species considered sports fish by netting activities
is perceived to adversely impact the overall sports fishery found in Amistad. No
scientific data is available to substantiate either of these views. Catfish represent the
primary fish of recreational and commercial conflict, as this species comprises a large
portion of both the US recreational and Mexico commercial harvest.

Increasing recreational use and tournaments

The United States side of the reservoir has experienced a significant increase in
organized fishing tournaments since the mid 1980's. Existing visitor use facilities at
Amistad NRA were not designed to accommodate large fishing tournaments. Developing
guidance and management of tournament impacts within the context of existing or new
facility development is needed.

Amistad averaged about 20 bass fishing tournaments a year in the 1980’s, which has
increased to around 150 tournaments a year, including many championship tournaments.
Some large tournaments involve as many as 250 boats. Neither the United States side nor
the Mexico side of the reservoir currently has adequate facilities to accommodate these
large tournaments, which are vital to the local economy. Existing parking areas and
launch ramps overfill during large tournaments, resulting in negative impacts to the
visitor experience. Development of a facility for tournaments to weigh-in their fish is
also needed. Organizers using the Diablo East boat ramp on the United States side
currently provide temporary weigh-in facilities in a parking lot, requiring contestants to
bring their boats out of the water, transfer their fish to plastic bags, then release the fish
down a 200 ft. (70 m) tube back to the water. A mortality study conducted during an
August 1998 tournament estimated that 65% of the 2400 fish caught during the
tournament died after being released (Wilde et al, 2002). Many bass tournament

Binational Fisheries Management Plan 28



INP

The mission of the Instituto Nacional de la Pesca is to supply the scientific and
technical data that determine the management standards to optimize the utilization of
fisheries resources.

CONAPESCA

CONAPESCA’s mission is to administer, with quality and openness, a sustainable
utilization of fisheries and aquatic resources, to improve their production, distribution,
and consumption to support a comprehensive increase of means of production, and to
improve the diet of the Mexican people.

CAN

The mission of the Comision Nacional del Agua is to administer and preserve the
nation’s waters, and with society’s involvement, to achieve a sustainable use of this
resource.

State of Coahuila

The mission of the government of Coahuila is to achieve harmonious improvement in
agriculture, ranching, and forestry activities; to protect its sustainability, take advantage
of its large production potential, and improve its efficiency and profitability by
incorporating the producers’ determined involvement to create necessary technological,
economic, and social advance.

See appendix IV for agency management authorities and policies.

HISTORY OF FISHERY MANAGEMENT ON THE RESERVOIR

State of Texas

Species managed
Through agreement with the National Park Service, the State of Texas has had the

primary responsibility for managing fishery resources within the US portion of the
reservoir. Texas has stocked and taken management actions to sustain the following
major sports (game) fish within the reservoir:

Largemouth bass (Micropterus salmoides)

Smallmouth bass (Micropterus dolomieu)

Channel catfish (/ctalurus punctatus)

Blue catfish (/ctalurus furcatus)

Flathead catfish (Pylodictis olivaris)

Striped bass (Morone saxatilis)

White bass (Morone chrysops)

White Crappie (Pomoxis annularis)

Walleye (Stizostedion vitreum)

(Note—Walleye have not been collected for several years)

Binational Fisheries Management Plan 10




Appendix V. Texas Parks and Wildlife Department’s fish stocking
criteria

Blue catfish:
1) New or renovated reservoirs where the sale of blue catfish is not legal.
2) Reservoirs with an identified need for an additional sport fish where no blue catfish
are present or blue catfish recruitment is inadequate and the sale of blue catfish is not
legal.

Bluegill:
1) New or renovated reservoirs.

Channel catfish:

1) New or renovated reservoirs.

2) Urban, community, state park, Wildlife Management Areas, and other TPWD waters
<75 acres (30 hectares) with insufficient channel catfish recruitment.

3) Waters >75 acres (30 hectares) with insufficient channel catfish recruitment.

Largemouth bass:

1) New or renovated reservoirs.

2) Reservoirs with a significant increase in habitat resulting from increased water level
or artificially induced vegetation.

3) Community Fishing Lakes may only be stocked with native largemouth bass.

4) Reservoirs with a history of producing trophy bass, but lacking sufficient numbers of
pure FLMB (Micropterus salmoides floridaus) (<20% FLMB genotype in
electrophoresis samples from age 0 or age 1).

5) Reservoirs which do not have FLMB established (<20% FLMB alleles in
electrophoresis samples from age 0 or age | fish).

Striped bass:
1) Large mainstream reservoirs.
2) Reservoirs with abundant shad and an existing striped bass fishery.

Palmetto bass (striped bass X white bass):
1) Reservoirs having abundant shad and an existing hybrid striped bass fishery.

‘Binational Fisheries Management Plan 34



o
soaca
geass

Figure 1. Area map of Amistad Reservoir

Environmental description

Amistad International Reservoir is located in a biological transition zone between the
Chihuahuan desert, the Edwards Plateau (Balconian), and the southern Tamaulipan
Brushland biotic provinces. This transition zone, coupled with the presence of limestone
canyons and plateaus, creates an environment diverse in habitats.

The most common plant community surrounding the reservoir is the Blackbrush
acacia brushland that occupies level plateau tops and gentle to steep slopes along
drainages (Texas Natural Heritage Program, 1995). Common plants encountered around
the reservoir include guajillo, mesquite, ocotillo, lechuguilla, and nopal. A highly
disturbed plant community at Amistad occurs in the zone of the fluctuating reservoir
water level. In this area, saltcedar (Tamarix), roosevelt weed (Baccharis), tree tobacco
(Nicotiana), and many species of grasses occur.

The primary fauna around Amistad includes white-tail deer, bobcats, javelina,
cottontail rabbits, jackrabbits, wild turkey, scaled and bobwhite quail, white-wing doves,
and morning doves. Puma and black bear are uncommon.

The reservoir was constructed on the Rio Grande and receives water from the Devils
and Pecos Rivers. The Devils River drains an area of 6,928 square kilometers (4,305
square miles). This spring fed river is not regulated and is under very little influence by
land use in the watershed, which is primarily ranches and small rural housing
developments (Water Resources Scoping Report, 2001). The Pecos River flows from the

Binational Fisheries Management Plan 2



Mexican fisheries studies

Investigators from the Instituto Nacional de la Pesca Central Regional Fisheries
Studies, Patzcuaro completed a fish biology study in Amistad Reservoir during 1997-
1998 (Orbe-Mendoza and Hernandez-Montaiio, 2000). The study objectives were: to
evaluate the fishery; to identify the commercial fish species; to determine the fishery
pressure on the reservoir and the fishing equipment most appropriate for selectivity; and
to analyze the fishery in accordance with the National Fishing Registry. The goal was to
propose a strategy for fishing regulations that would produce a sustainable resource.

As a result of the study, the following recommendations and methods for regulating
the reservoir’s fisheries resources were proposed:

e Plan harvest by using fishing permits.

¢ Utilize selective fishing methods such as gill nets with mesh openings of 4 inches or
greater, with a maximum length of 100 meters (328 feet), and a depth of 2 to 3 meters
(6.6 to 9.8 feet), for the harvest of tilapia, carp, drum, catfish, and gar. Utilize traps
for the harvest of carp and catfish with the minimal determined size, rejecting smaller
individuals.

e Harvesting species with the following minimal size limits:

o Catfish 32 cm (12.6 in) (all species)

o Drum 29 cm (11.4 in)

o Carp 30 cm (11.8 in)

o Bass (Lobina) 34 cm (13.4 in) (white)

o Bass (Robalo) 38 cm (15.0 in) (green and striped)

o Flathead 45 cm (17.7 in)

o Crappie 26 cm (10.2 in)

o Bluegill 15 cm (5.9 in) (redear sunfish and bluegill)

e Allow a fishing force of 40 fishermen with 8 nets per fisherman.

e Lay nets from Buoy 8 to the uppermost point of the lake from 6pm on Sunday until
retrieval by 8pm on Friday. Nets must be checked once every 24 hours.

¢ Continue with stocking of commercial and sport fishes.

e Undertake taxonomic and biological studies of the fishes, along with ecological
studies to fully understand the ecosystem.

« Improve the harvest registry.

e Train the fishermen in various subjects such as fishing methods; processing fish and
their sale, in order to increase the value of the fish, and tourist services, etc.

Binational Fisheries Management Plan 25



Statement

Historically, TPWD has conducted surveys every 3-4 years on Amistad Reservoir. These
surveys were conducted only on the United States portion of the reservoir. Under a new
agreement with Mexico agencies, sampling will be conducted on the United States and
Mexico portions of the reservoir. Sampling sites will be computer-generated random
sites. Data will be recorded separately by site to maintain site integrity. Catch per unit of
effort by sampling gear and length frequency data will be compared between U.S. sites
(where commercial harvest is not permitted) and Mexico sites (where commercial harvest
is permitted), To the degree possible, habitat will also be evaluated to determine what
affects it may have had on relative species abundance. Other factors that will be
considered include species composition, frequency of netting activities per site, type of
netting gear utilized per site and possibly total netting pressure for a given area of the
reservoir.

Various survey techniques will be implemented to collect data on the overall fisheries
population found in Amistad Reservoir. Standardized survey methods currently
employed by TPWD include gill net collections, electro-fishing collections, creel
surveys, habitat and structure evaluation and basic water sampling.

Gill net surveys will be utilized to evaluate open water species (target species) which
include channel catfish, blue catfish, flathead catfish, white bass and striped bass. Gill
net data is also used to determine relative abundance of carp, buffalo, freshwater drum
and gar.

Electro fishing surveys will be conducted to evaluate shoreline species (target species)
which include largemouth bass, sunfish, threadfin shad and gizzard shad. Trap (frame)
nets will also be used to target sunfish species and crappie species.

Creel surveys (discussed under Project No. 2)

Water sampling will be conducted to determine temperature, pH, conductivity and
dissolved oxygen levels.

Observations will be made to document major changes in habitat structure and
abundance.

The monitoring of rough fish and their relative abundance will be continued by TPWD
biologists during routine sampling. Trend data will be shared with Mexico biologists to
assist them with monitoring the population trends. Trend data will be determined from
Catch Per Unit of Effort (CPUE) by gill net sampling in the years Amistad is surveyed by
TPWD. TPWD data will be provided to Mexico counterparts.

Binational Fisheries Management Plan 61



the state of Coahuila, Mexico, there are close to 20 hunting, shooting and fishing clubs.

Additionally, there are social organizations like the Lions and the Rotary clubs, all of

which organize fishing tournaments. It is the right of the sub-delegation of fishing, '
Subdelegacion de Pesca, to regulate and control fishing tournaments, in order to

contribute to the entertainment and leisure of the population within the state.

Approximately 10 tournaments per year currently take place on Mexico’s side of the

reservoir. There are approximately 70 participants per tournament.

Neither the United States nor Mexico side of the reservoir currently have adequate
facilities to accommodate large tournaments. Existing parking areas and boat launch
ramps overfill during large tournaments, resulting in negative impacts to the participants
and other recreational visitors.

Most of the fishing tournaments conducted on the reservoir involve boats with live-wells
and result in the fishermen releasing their catch after a formal “weigh-in” procedure.
Development of better facilities for fishermen to weigh-in their fish is needed to reduce
fish mortality during these tournaments. Tournament organizers using the Diablo East
boat ramp on the United States side currently provide temporary weigh-in facilities in a
parking lot, requiring contestants to bring their boats out of the water, transfer their fish
to plastic bags, then release the fish down a 200 fi. tube (70 meters) back to the water.
Similar approaches to holding a tournament are required in Mexico where adequate
weigh-in facilitites are also lacking. A mortality study conducted during a 1998
tournament estimated that 65% of the 2400 fish caught during the tournament died after
being released. Many bass tournament organizers, and local, State, Federal and Mexican
officials, are interested in reducing fish mortality during these tournaments.

Objectives
e Reduce fish mortality resulting from sport fishing tournaments.
e Improve managing agencies’ capability to provide for quality fishing tournaments.

Methods

Advice and collaboration will be sought from the tournament organizers to develop
design and construction specifications for a highly functional tournament landing facility
and associated on-site improvements for accommodating parking. One or more
tournament landing facilities will then be constructed utilizing lake access/tournament
permit fees.

Budget

Budget Category Amount (dollars)
Project Design $10,000
Facility Construction $100,000

Binational Fisheries Management Plan 63



Project Title: Improve reservoir access (roads and boat ramps) on both
sides of the reservoir.

Abstract

The Amistad Reservoir has been in a drought situation since 1993. Development around
the reservoir for visitor access has historically been based on high water level access. On
August 5, 1998, the reservoir was more than 58 vertical feet (17.7 meters) below
conservation pool level. Drought conditions have reduced access on both the United
States and Mexico sides. The main boat ramp at Playa Tlaloc is not functional at lower
water levels, and most anglers on the Mexico side use non-permanent low water ramps as
the alternative. A permanent all water level ramp needs to be developed on the Mexico
side of the reservoir. Additional analysis of boat ramp options need to be looked at for
the United States side.

Objectives

e Improve low water visitor access for the Amistad Reservoir.

© Develop an all water level boat ramp facility for the Mexico side of the reservoir.
¢ Improve low water boat ramps on the United States side of the reservoir.

Methods

The low water fishing access on the United States side of the reservoir is considered very
good for the lower end of the reservoir; however, the access on the Mexico side of the
reservoir is limited to one high-water ramp. The State of Coahuila has considered
building an additional ramp. The northwest section of the reservoir on the Mexico side is
almost entirely surrounded by private property, and this greatly limits the future potential
access of the public. The only general public access area is Playa Tlaloc.

In Mexico, the Secretaria de Comunicaciones y Transporte and the Instituto Estatal de
Turismo will evaluated options for developing an all water level ramp. Funding sources
will be identified and agency coordination will continue.

The National Park Service will be looking at access on the Pecos River and improving
low water access sites used around the park.

Project Title: Develop a common informational fact sheet on boat access,
fishing, fees, facilities available, basic regulations, etc.

Abstract

A common informational fact sheet will be developed by SAGARPA, TPWD, and the
NPS to assist in angler knowledge of reservoir boat access, fees, facilities available, and
basic regulations. The fact sheet will be a one page document with information on US
waters on one side and information on Mexico waters on the other side. The fact sheet
will also contain information on locations for acquiring fishing licenses and legal length
requirements for sport fish. The fact sheet will be updated annually.

Binational Fisheries Management Plan 64



following years: 1981,1985, 1986, 1989, 1991, 1993, 1996, and 1999. Starting in 2002,
reports will be submitted on a 4-year cycle. Creel surveys to determine directed effort,
harvest rates and total angling pressure will be conducted to update the database.

Regulations

Within the Mexico portion of the reservoir, sport fishermen fishing from boats are
required to obtain a fishing permit to take fish from Amistad Reservoir. These permits are
issued mainly to US citizens who sport fish on Amistad Reservoir. If fishing from the
bank, no sport fishing license is required. Table 6 summarizes the number of fishing
permits issued by the regional office in Ciudad Acufia from 1995 through 2002.

Table 6. Mexican sport fishing permits issued to anglers fishing from boats in the Amistad
Reservoir (Subdelegation of Fishing, Regional Office of Acufia, Coahuila, Mexico

For one Permits for Total Number
Year Day Annual Total Boats of Permits
1995 1323 156 1479 33 1512
1996 1829 145 1974 26 2000
1997 2320 122 2442 55 2497
1998 2418 120 2538 64 2602
1999 2436 169 2605 72 2677
2000 2420 250 2670 77 2747
2001 2570 270 2840 86 2926
2002 1712 21 1733 8 1741
TOTAL 17028 1253 | 16548 413 18702

Very little data is available on the amount of recreational harvest from Mexico’s side
of the reservoir or on the condition of recreational fishery resources.

Within the United States portion of the reservoir, all sport fishermen are required to
obtain a Texas fishing license. Since 1998, fishermen operating motorized vessels have
also been required to carry a Lake Use Permit. Between 1998 and 2005, the number of
annual lake use permits purchased for the US side of the reservoir has ranged between
2,000 and 2,500.

Within Mexico, recreational sport fishing can be done from shore, on board boats or
underwater. Whoever conducts this activity from shoreline doesn't need a permit, but
must utilize only authorized fishing gear, such as fishing poles or fishing line and hooks,
with bait or lures and respect the minimum sizes and limits of capture that is determined
by CONAPESCA. Fishing permits are provided individually and are not transferable to
others, and corresponding rights of the permit are provided during payment of the permit,
as established by SAT (Servicio de Administracién Tributaria).

Fish captured through recreational sport fishing are destined for personal
consumption or for taxidermy display.

Binational Fisheries Management Plan 22


Project Title: Develop a common web page and links for public information about the
reservoir and its recreational opportunities...........
Project Title: Improve the coordination and data sh:
activities on Amistad Reservoir.
Project Title: Evaluate contamination s sources and ues.
Project Title: Determine actual long-term institutional monitoring.
Project Title: Conduct experimental studies on the effects of commercial nets on sport
fishes

ig of water quality monitoring

Table of Figures & Tables

Figure 1. Area map of Amistad Reservoir ve
Table 1. Texas Parks and Wildlife Department stocking history of ‘Amistad Reservoir,
Texas
Table 2. Progression of US harvest regulations for game fish at Amistad Reservoir
Table 3. Commercial and sport fish of Amistad Reservoir ..... :
Table 4. Mexican fish stocking data from 1994-2002 for Amistad Reservoir, Ciudad
Acufia, Subdelegacion de Pesca del Estado de Coahuila... .ccceceeseseereessererreneeees 15
Table 5. Changes in Fish Species in the Rio Sabinas, Muzquiz, Coahuila between 1959
ANG 1994 oe eeccceectenesecenenenensceetesesnsesessesessesesssssesssnsnesssseeeseesenseeeeseecsereeeseenscenseeeeteneeees 20
Table 6. Mexican sport fishing permits issued to anglers fishing, from ‘boats i in the
Amistad Reservoir (Subdelegation of Fishing, Regional Office of Acufia, Coahuila,
Mexico
Table 7, Fish production registered for Amistad Reservoir ‘and s size of the catches
according to the arrival notifications submitted by the Mexican fishing cooperatives .... 23
Figure 2. IBWC water surface elevation for Amistad Reservoit.........c cesses 27

Binational Fisheries Management Plan v



CURRENT STATUS AND CONDITION OF THE FISHERY RESOURCEB........ 17
Species composition, abundance and distributioi 17

Threatened and endangered species. 18
Invasive species ..... 21
Status of sport fisheries . 21
Regulations . 22
Prohibitions. 23
Status of commercial fishery 23
Mexican fisheries studie: 25
Habitat limitations. 26
MAJOR ISSUES OF CONCERN ........ seseee 28,
Recreational - commercial fisheries conflict: 28
Increasing recreational use and tournaments 28
Fishing access 29
Water quality/quantity/regulation . 30
Conflicting use....... 30
Education and outreach. 30
COOPERATIVE MANAGEMENT PROGRAM 32

Management goals
Management protocols
Regulation changes...
Implementation of the Binational Management Plan committee.
Management constraints .. .
PUBLIC INVOLVEMENT AND E
LITERATURE CITED
PROJECT NEEDS.
APPENDICES...
Appendix 1. Checklist of fish present in Amistad Reservoir
Appendix II. Agency contacts... ve
Appendix HI. Agency organizational charts...
Appendix IV. Overview of management authorities and policie:
United States oc. ceeeecce eee ccesnescssesneensscseesssssnsssessesseesneenseeeey
Mexico..
Appendix V. Texas Parks ‘and Wildlife Department’s fish stocking criteri
Appendix VI. Protocols for implementing new management recommendations .
Appendix VII. Descriptions of future projects/studies at Amistad Reservoir ...
Project Title: Determine the total economic value of fishery resources of Amistad

velop sport fishing tournament weig!
mprove reservoir access (roads and boat ramps) on both sides of the

reservoir.
Project Title: Develop: a common informational fact sheet on boat access, fishing, fees,
facilities available, basic regulations, etc
Project Title: Establish a common form for recording fishing tournament catches.

Binational Fisheries Management Plan iv



Stocking history

Texas Parks and Wildlife Department, Inland Fisheries Division, has a long history of
stocking efforts within Amistad Reservoir and recorded stockings are presented in Table
1. Stocking was initiated in 1967 when the reservoir was just being completed and
beginning to fill with water. Initially, largemouth bass, channel catfish, and white
crappie were stocked. Blue catfish were then introduced in 1971 and striped bass in
1974. In 1975, smallmouth bass, walleye, and hybrid striped bass were first introduced.
The last species to be introduced were the northern pike and muskellunge in 1976. Since
their initial introductions, northern pike, muskellunge and blue catfish have not been
stocked by the US. White Crappie were stocked a second time in 1989 but have not since
been stocked. Since 1975, all largemouth bass stocked by the US have been of the
Florida strain. Since 1997, only striped bass and largemouth bass have been stocked into
the reservoir by TPWD. Other game fish species, except walleye, have been self-
sustaining through natural reproduction.

Standardized fishery assessment surveys are routinely conducted to determine
reproduction, recruitment, growth, condition, and relative abundance of fish populations.
These parameters, in conjunction with established stocking criteria and current reservoir
water level and habitat conditions, are used to formulate annual stocking
recommendations.

Binational Fisheries Management Plan mt



BINATIONAL FISHERIES MANAGEMENT PLAN
FOR AMISTAD RESERVOIR

INTRODUCTION

Reservoir history and its purposes

Amistad International Reservoir is a 26,300 hectare (65,000 acre) multi-purpose
reservoir that impounds the Rio Grande River. The conservation pool level for the
reservoir is set at 340.46 meters (1,117 foot) elevation. Surface area of water on the
United States side totals 17,500 hectares (43,250 acres). Surface area of water on the
Mexico side totals 8,800 hectares (21,750 acres). See Figure | for area map of the
Amistad Reservoir.

Amistad Reservoir was created under the provisions of the Water Treaty of 1944
between the United States of America and Mexico and 22 USC 277d 13-16, Storage Dam
— US and Mexico, approved July 7, 1960. The International Boundary and Water
Commission (IBWC) acquired land up to the elevation of 348.87 meters (1144.3-foot
mean sea level- msl) for the impoundment. The reservoir dam construction was
completed in 1969.

The US purpose of the Amistad Reservoir is for water storage for municipal,
industrial, and agricultural uses in south Texas. Amistad is a deep reservoir and contains
less surface area, but more storage than Falcon Reservoir downstream. Water is released
to Falcon Reservoir when domestic and industrial demands are high.

Within Mexico, the objectives for the construction of this reservoir are mentioned
below in order of importance for the International Boundary and Water Commission for
Mexico, known as CILA:

Control flooding.

Water storage.
Generation of electricity.
Agriculture.

Fishing.

Tourism.

Binational Fisheries Management Plan 1



e Fishing clubs must receive approval from the Subdelegacion de Pesca and may only
fish Saturdays and Sundays.
e¢ Tournament results will be sent to the Secretary.

The Subdelegacién de Pesca:
¢ Will ensure the cooperatives and sport fishermen comply with the established rules.
¢ Issue commercial and sport fishing permits.

This agreement is in effect from 1980 to this date and ensures a harmonious
relationship between commercial and sport fishermen through the contracted rules.

CURRENT STATUS AND CONDITION OF THE FISHERY
RESOURCES

Species composition, abundance and distribution

The major sport fishes found in Amistad include largemouth bass (Micropterus
salmoides), channel catfish (Ictalurus punctatus), white bass (Morone chrysops) and
striped bass (Morone saxatilis). All of these species are fairly abundant throughout the
reservoir proper. Smallmouth bass (Micropterus salmoides) are fairly abundant in the
Devils River and in the Devils River arm of the reservoir, with a lesser abundance found
in the reservoir proper. White crappie (Pomoxis annularis), a species stocked only twice,
are found to be limited in abundance and have been documented primarily up the Devils
River arm of the reservoir. Striped bass and white bass are more concentrated up the
river portions of the reservoir during spring spawning runs.

Sunfish, including bluegills (Lepomis macrochirus), redbreast sunfish (Lepomis
auritus), green sunfish (Lepomis cyanellus), and warmouth sunfish (Lepomis gulosus) are
abundant throughout the reservoir along the rocky shoreline. Other sunfish present,
although never stocked, include longear sunfish (Lepomis megalotis) and redear (Lepomis
microlophus) sunfish.

The most abundant forage (baitfish) includes gizzard shad (Dorosoma cepedianum)
and threadfin shad (Dorosoma petenense). These fish are found throughout the reservoir
proper as well as up the river arms.

Two cichlids, Rio Grande cichlid (Cichiasoma cyanoguttatum) and Blue tilapia
(Oreochromis aureas) are found in limited numbers throughout the reservoir but may be
found concentrated around springs in the reservoir.

Amistad has three major watersheds on the American side which contribute to the
diversity of aquatic plant and animal life. The Rio Grande is the largest, followed by the
Pecos River drainage and the Devils River drainage.

Binational Fisheries Management Plan 17



GHAI /D-/7T

Binational Fisheries Management Plan
for Amistad Reservoir

United States Agency Contributors:
Texas Parks and Wildlife Department
National Park Service

US Fish & Wildlife Service

* Mexico Agency Contributors:
Secretaria de Agricultura, Ganaderia, Desarrollo Rural,
Pesca y Alimentacion.
Instituto Nacional de Pesca. |
Comisi6n Nacional del Agua. |
Secretaria de Turismo
SCT |
Gobierno del Estado de Coahuila

* Mexico agencies contributed to the development of
the plan, but none have signed the final docu

PEATE FETURN TO
SUES, PSUHINNGAL TBF ORMATIGN CENTER

VER SERVICE CENTER |
IAL PARK SERVICE



PROJECT NEEDS

The signatory Agencies have identified the following projects as current high priority
studies and actions that need to be taken to improve knowledge and/or management of
the fishery resources within Amistad Reservoir. Appendix VII contains more detailed
descriptions for each of the 12 potential projects listed below.

1) Determine total economic value of fisheries and angler use and attitudes at the
Amistad Reservoir (INP, SAGARPA, TPWD, NPS).

2) Determine the level of total sport fish harvest occurring on the reservoir (TPWD,
SAGARPA, NPS).

3) Conduct cooperative monitoring (studies) of commercial and sport fish populations
(TPWD, INP, SAGARPA, NPS).

4) Develop sport fishing tournament weigh-in facilities that result in reduced mortality
(NPS, TPWD, SAGARPA, State of Coahuila, Institute of Tourism).

5) Improve reservoir access (roads and boat ramps) on both sides of the reservoir (NPS,
Secretaria de Comunicaciones y Transporte, Instituto estatal de Turismo).

6) Develop a common informational fact sheet on boat access, fishing fees, facilities
available, basic regulations, etc. (TPWD, NPS, SAGARPA).

7) Establish a common form for recording fishing tournament catches (TPWD, NPS,
SAGARPA).

8) Develop a common web page and links for public information about the reservoir and
its recreational opportunities (TPWD, NPS, SAGARPA).

9) Improve the coordination of water quality monitoring activities on the reservoir (NPS,
TCEQ, TPWD, CNA).

10) Evaluate contamination sources and issues (TCEQ, NPS.CNA).

11) Determine the actual state of long-term institutional monitoring (TPWD, NPS,
SAGARPA).

12) Conduct experimental studies about the effects of commercial fishing nets on sport
fishes.

Binational Fisheries Management Plan 40



Within Mexico, tourism created by the reservoir is important. The reservoir is suitable
for water skiing, scuba diving, boating, visits to places that have pre-historic paintings,
fossil hunting, camping, and observation of fauna. The shores of the reservoir have been
registered as being suitable for hunting.

Commercial fishing

Within the Mexico portions of the reservoir there is a commercial fishery closely
administered under the regulations and control of the government. There has been a
steady effort to conserve this resource. The yearly catch has averaged 209 metric tons
(230 tons). As of 2002, there were only two commercial fishing cooperatives with a total
of 30 participants.

Current designations affecting the reservoir

US Designations
International Boundary and Water Commission- The enabling legislation for the

construction, operation and maintenance of the Amistad Dam and Reservoir was
authorized by the Act of Congress of July 7, 1960 (74 Stat. 360;22 USC 277d 13-16).

National Recreation Area Designation- Public Law 101-628 (11/28/90) designated
land and waters on the US side of Amistad Reservoir as a National Recreation Area to be
administered under the National Park Service.

State Park Area Designation- Seminole Canyon State Park and Historic Site is
located on the Rio Grande arm of the Amistad Reservoir. The major points of interest are
prehistoric pictographs.

Mexico Designations
None

US - Mexico Joint Designations/Treaty
Amistad International Reservoir was created under the provisions of the Water Treaty
of 1944 between the United States of America and Mexico, approved on July 7, 1960.

Agency management plans that affect reservoir management

Texas Commission on Environmental Quality (TCEQ)

The United States and Mexico governments, through their respective sections of the
International Boundary and Water Commission (IBWC), jointly operate and maintain the
dam, dividing the costs in the same proportion as was determined in the Water Treaty of
1944, and effecting the division by each performing work corresponding to its share of
the costs. Water releases are made from each country's share of the waters in
conservation storage to meet its downstream requirements, as requested by the
appropriate domestic authority. In the United States, the authority is the Texas
Commission on Environmental Quality. Water releases for control of floods are
determined jointly by the two Sections of the IBWC.

Binational Fisheries Management Plan 4



southern Rocky Mountains in New Mexico and drains a watershed of 70,796 square
kilometers (44,000 square miles). The reservoir water tends to be clear and the
temperature is low due to the depth of a large part of the reservoir, which averages 5
meters (16 feet), with depths reaching over 70 meters (230 feet). This causes the
productivity index to be low.

The Conchos River is a major source of water for the Rio Grande; it joins the Rio
Grande near Presidio, Texas, and Ojinaga, Chihuahua. The Conchos River hydrologic
region (RH-24-A) includes an area of 75,442 square kilometers (46,774 square miles).
This region covers the Conchos River drainage, in the State of Chihuahua and a small
portion of the State of Durango. The northern boundary is the United States, northwest is
RH-34 Chihuahua Basin), northeast is RH-24-B (Upper Rio Bravo/Grande), east is RH-
35 (Coahuila and Chihuahua), south is RH-36 (Durango), and west are RH-9 (Sonora)
and RH-10 (Sinaloa, Chihuahua and Durango).

Hydrologic Regions:

RH-34 Cuenca de Chihuahua.

RH-24-B Alto Bravo.

RH-35 Coahuila y Chihuahua.

RH-36 Durango.

RH-9 Sonora.

RH-10 Sinaloa, Chihuahua, and Durango.

Types of activities that occur on the reservoir
Fishing

Fishing is one of the most popular recreational uses of the Amistad Reservoir within
the US waters. The trophy bass fishery attracts around 150 organized bass tournaments
annually. Most tournaments occur on the US side, but approximately 10 occur on the
Mexico side. The number of fishing tournaments documented on the US side from 2002
to 2006 included the following: 2002= 155, 2003= 156, 2004= 138, 2005= 146, and
2006= 148. At times, the tournaments can bring as many as 600 boats on the water, with
4 or 5 tournaments occurring during the same weekend. Amistad Reservoir is considered
to be one of the best trophy bass reservoirs in the world.

In Mexico the popularity of recreational fishing is growing. Sport fishing has
increased steadily because the reservoir has been recognized as being good for this
activity. This has caused the number of fishing permits issued and the number of fishing
tournaments to increase during the last 10 years.

Other Activities

Other recreational activities on the reservoir includes recreational boating, such as
wildlife viewing and visiting archeological pictographs, personal watercraft use, rental
houseboat trips, hunting, and water skiing. Boat camping is also a popular activity along
the reservoir shoreline.

Binational Fisheries Management Plan 3



Mexican Fisheries Regulation Process

isheries Organization

gnosis: Description of the Fishery:
Definition of the fishery issue Fisnery evaluation and social issue specification

Ld

Determine the Plan Instruments
-Permissable catch
-Optimum effort
Appropriate fishing techniques and methods
-Reslriced fishing areas
-Fishing seasons and special limitations
“Minimum catch sizes.
Determine propery rights

Sociseconomic
studies

Technical data for decision-making

‘SECTOR CONSENSUS
WITH PROPOSED.
MEASURES

1
Official Mexican Law

The National Water Law, published in 1992, has for a mission: to regulate the
exploitation, the use and benefits, and the distribution and control of the national waters,
such as the preservation of quantity and quality. In coordination with SAGARPA,
promote the development of aquaculture.

Binational Fisheries Management Plan 53



Objective: Create educational information for anglers that describes procedures
required for fishing on Amistad Reservoir.

Task: Develop a common informational fact sheet on boat access, fees, facilities
available, and basic fishing regulations.

Task: Develop a common web-page and links for public information about the
reservoir and its recreational opportunities.

Management protocols

Regulation changes
Individual agency protocols for implementing new management regulations are
presented in Appendix VI.

Implementation of the Binational Management Plan committee

The plan will be reviewed for necessary modifications by all signatories at 5-year
intervals. Suggested changes will be provided in writing to the other agencies and be
discussed at the annual meeting of signatories. Formal changes will require the
signatures of all participants to constitute an amendment to the plan.

Annual meetings will be held during the first week of August. Meetings will be held
in Ciudad Acufia and Del Rio on an annually rotating basis. The annual meeting will
involve a joint evaluation of the program to date, a review of accomplishments of the
previous year, a discussion of agency proposals and planned actions for the upcoming
year, and a discussion of general points of agreement on necessary management actions.

Each country will name a principal person of contact for sharing of data information.
See Appendix II for current contact list for SAGARPA, TPWD, and NPS.

Management constraints
The signatories agree to carry out the provisions of this Binational Agreement to the
extent that their respective administrative funding will permit.

All parties agree that nothing in this agreement is considered to supersede their legal
mandates and agency governing policies.

Binational Fisheries Management Plan 36



\ 1996 210,100 / 463,191
| 1997 | 235,000 / 518,086
4998 228,025 / 502,708 _ |
[ 1999 226,112/ 498,491 |
2000 106,685 / 235,200
TOTAL 3,751,416 / 8,270,446

The share of each of the species in the total population, taking as a reference the catch
of one year, is:

Catfish 42.0%
Freshwater Drum 15.0
Carp 10.0
Smallmouth buffalo <1.0
Gar <1.0
Tilapia <1.0
Shad 26.0
Others +4.0
100.0%

Catfish — (fctalurus punctatus, Leatus, I furcatus, I.melas.) Catfish is the most abundant
species, representing 42% of all captures. They are primarily caught with
highly selective traps that allow for a certain size. The largest proportion of all
individuals is between 27 and 47 cm (10.64 and 18.52 in.) standard length, and
the average weight is Ikg (2 Ibs), with the largest weighing up to 7 kg (15 Ibs).

Freshwater Drum — Drum represents an average of 15% of all catch. Drum is caught
with gill nets with mesh openings of at least 4 inches. The average size is from
28 to 40 cm (11.03 to 15.76 in) standard length.

Carp ~ Carp represents about 10% of the total catch and are normally caught with gill
nets with various mesh openings of at least 4 inches. Sizes are from 27 to 60
cm (10.64 to 23.64 in) with a large number more than 9 kg (20 Ibs). The
average weight of this species is 1.5 kg (3 Ibs). They are sold as fillets and
sliced.

Smallmouth Buffalo — It has been displaced by the catfish because the catfish is more
readily accepted in the market.

Gar — Its commercial exploitation had a large potential, but it now has very little
acceptance and the costs of catching it are very high.

Tilapia — There is a large demand for this species, but due to water temperature
conditions, it has not been possible to establish a productive stock of this fish.

Shad - It is primarily used as bait, though on occasion strips of this fish are used in
ceviche.

Binational Fisheries Management Plan 24


APPENDICES

Appendix I. Checklist of fish present in Amistad Reservoir
Reported by Texas Parks and Wildlife Department

Scientific name Common name Occurrence
Lepisosteus oculatus Spotted gar Present
Lepisosteus osseus Longnose gar Present
Lepisosteus spatula Alligator gar Present
Dorosoma cepedianum Gizzard shad Abundant
Dorosoma petenense Threadfin shad Abundant
Carassius auratus Goldfish Rare
Cyprinetla lutrensis red shiner Abundant
Cyprinella proserpina proserpine shiner Present
Cyprinella venusta blacktail shiner Abundant
Cyprinus carpio common carp Abundant
Dionda argentosa manantial roundnose minnow Abundant
Dionda diaboli Devils River minnow Rare
Dionda episcopa roundnose minnow Present
Macrhybopsis aestivalis speckled chub Rare
Notemigonus crysoleucas golden shiner Present
Notropis amabilis Texas shiner Abundant
Notropis braytoni Tamaulipas shiner Abundant
Notropis chihuahua Chihuahua shiner Rare
Notropis jemezanus Rio Grande shiner Rare
Notropis stramineus sand shiner Abundant
Pimephales vigilax bullhead minnow Abundant
Rhinichthys cataractae longnose dace Rare
Carpiodes carpio river carpsucker Abundant
Cycleptus elongatus blue sucker Rare
Ictiobus bubalus smallmouth buffalo Abundant
Moxostoma austrinum west Mexican redhorse Rare
Moxostoma congestum gray redhorse Abundant
Astyanax mexicanus Mexican tetra Abundant
Ameiurus natalis yellow bulihead Present
Ictalurus furcatus blue catfish Present
Ictalurus lupus headwater catfish Rare
Ictalurus punctatus channel catfish Abundant
Noturus gyrinus tadpole madtom Rare
Pylodictis olivaris flathead catfish Abundant
Cyprinodon eximius Conchos pupfish Rare
Cyprinodon hybrids sheepshead minnow x Pecos pupfish Rare
Fundulus grandis Gulf killifish Present
Gambusia affinis western mosquitofish Present
Gambusia geiseri largespring gambusia Present
Gambusia senilis blotched gambusia Extirpated
Gambusia speciosa Mexican mosquitofish Abundant
Poecilia latipinna sailfin molly Present
Menidia beryllina inland silverside Abundant

Binational Fisheries Management Plan 41



Sport fishing boats can carry on board as many fishing poles desired by fishermen,
but the capture of fish made by fishermen must follow the limits and conditions
established, namely: 10 fish daily per fisherman, but no more than 5 fish from one
species. During fishing trips that are more than three days, the number of fish
accumulated per sport fisherman must not exceed the three-day quota.

Prohibitions

Unauthorized fish species or number of fish species retained.
Capture crustaceans, mollusks, reptiles and amphibians.

The use of dragging nets.

The use of artificial illumination to attract fish.

Fishing in re-population zones or during closed season.

The use of fishing lures that include treble hooks.

Processing of fish (fillet) on board a boat.

eooeoereee

Status of commercial fishery

In Amistad Reservoir there are only two registered commercial fishing organizations
that have authorization for the capture and sale of the different species of fish, with the
exception of the various bass. The commercial product is sold as freshly gutted and
filleted; in the case of carp, slices with spines are used for chicharr6n and ceviche.
According to official records from 1985 through 2000, the average yearly catch has been
234.5 metric tons (258.5 tons), with 322.3 metric tons (355.3 tons) being the highest
catch in 1988, and 106.6 metric tons (117.5 tons) being the smallest catch in 2000. The
current fishing fleet consists of 27 outboard motor vessels, 319 nets and 28 members
(individuals) in the fishing cooperatives.

All the catch is gutted; only the carp and gar are filleted and frozen when their supply
is excessive. All the production is sold in northern Coahuila.

Table 7. Fish production registered for Amistad Reservoir and size of the catches according to
the arrival notifications submitted by the Mexican fishing cooperatives

Year/Anio Kg/Lbs
1985 158,103 / 348,557
1986 228,373 / 503,476
1987 344,682 / 759,893
1988 322,355 / 710,670
1989 318,210 / 701,532
1990 291,780 / 643,264
1991 [291,525 / 642,702
1992 | 159,468 / 351,566
1993 208,135 / 458,859
| 1994 216,926 / 478,239
| 1995 205,937 / 454,013

Binational Fisheries Management Plan 23



Budget
Budget Category

In-kind services
TPWD personnel (creel census)(10 days, @ S25/hour)
TPWD (vehicle expenses, creel census)

(3,000 miles @ .28/mile)
NPS personnel (creel census)

(1 GS-11, 10 days, @ $25/hour)
SAGARPA personnel (creel census)

(1 staff employee, 10 days, @ $200 a week)
FY-2002 Total Creel In-kind Services

Project expenses

2 clerks @ $9.00/hour for 600 hours
Equipment and Supplies

Vehicles 5600 miles @ .28/mile
Travel (lodging and per diem)

Amount (dollars)

$2,000
$840
$2,000
$400
$5,420

$10,800
$300
$1,568
$2,000

(lodging costs include clerk housing, incidental lodging for TPWD techs.)

Printing
Communication and postage

Project Title: Conduct cooperative monitoring (studies) of commercial and
sport fish populations (TPWD, INP, SAGARPA, NPS).

Abstract

$500
$600

Two types of fisheries currently exist on Amistad Reservoir. A commercial fishery,

which consists of harvest by gill nets and trap (hoop) nets, is in place on the Mexico side.
A sports fishery, which consists of harvest by rod and reel, jug lines and trotlines, exists
on the United States side of the reservoir. Sports fishery on the Mexico side is limited to
rod and reel fishing. Commercial fishermen in Mexico target rough fish for part of their
catch (carp, gar, freshwater drum and buffalo). Texas Parks and Wildlife Department
(TPWD) monitors the relative abundance of rough fish during routine sampling (gill net)
on the United States portion of the reservoir. These species are not directly targeted for

collection by TPWD.

To determine the relative health of the fisheries found in Amistad Reservoir, various

survey techniques need to be implemented. TPWD currently has standardized survey

methods designed to sample a particular portion (target species) of the fisheries
population. Surveys have been conducted on Amistad by TPWD since it was

impounded. Standardized sampling will be continued in order to determine current status

of fisheries and develop trend data over time.

Binational Fisheries Management Plan





Spe

In Amistad Reservoir there are sport and commercial fisheries. The commercial
fishery catch focuses on catfish, carp, tilapia, freshwater drum, bigmouth buffalo, shad,
and gar. The sport fishery focuses on black bass and striped bass. Commercial fisherman
can catch all of the above mentioned species, with the exception of black bass and striped
bass which are reserved for recreational or sport fishing. Both commercial and sport fish
species are promoted for management. The major species targeted by each of these

fisheries is presented in Table 3.

Table 3. Commercial and sport fish of Amistad Reservoir

{ NOMBRE COMGN NOMBRE CIENTIFICO/ ORIGEN/
COMMON NAME SCIENTIFIC NAME ORIGIN

Especies Comerciales/Commercial Species:
Besugo, Tambor, Sargo/Freshwater Drum Aplodinotus grunniens Nativo/Native
Potranaca/River Carpsucker Carpiodes carpio
Chupon blanco/White Sucker Catostomus comersonni Nativo/Native
Matalote, Bufalo, Dorado/Bigmouth Buffalo Ictiobus ciprinellus NativoiNative
Carpa Comun/Common Carp Cyprinus carpio Introducida/introduced
Cuchilla, Shad, Alosa/Gizzard Shad Dorosoma cepedianum Nativo/Native
Tilapia, Mojarra Africana/Tilapia Tilapia spp Iniroducida/introduced
Sardina brillo de oro/Golden Shiner Nothemigonus crysoleucas Nativo/Native

Sardina, Piscardo cabeza grande/Fathead Minnow

Pimephates promelas

Nativo/Native

Especies Comerciales y Deportivas/
Commercial and Sport Species:

Bagre Azul/Blue Catfish Ictalurus furcatus Nativo/Native
Bagre Blanco/White Catfish Ictalurug catus Nativo/Native
Bagre cabeza de toro negro/Black Bullhead Ameiurus melas Nativo/Native
Bagre cabeza de toro café/Brown Bullhead ~ | Ameiurus nebulosas Nativo/Native
Bagre de canal, Pez gato catfish/Channel Catfish _| /ctalurus punctatus Nativo/Native
| Piltontle/Flathead Catfish Pylodictis olivaris Nativo/Native

Catan, Pejelagarto/Longnose Gar

Lipisosteus osseus

Nativo/Native

Catan/Spotted Gar

Lipisosteus oculatus

Nativo/Native

Mojarra de agallas azules/Bluegill

Lepomis macrochirus

Nativo/Native

Mojarra pecho amarillo/Redear Sunfish | Lepomis microlopus Nativo/Native
Especies Deportivas/Sport Species:

Lobina Negra, Robalo verde/Largemouth Bass Micropterus salmacides Nativo/Native
Lobina boca chica y grande/Smalimouth Bass Micropterus dofomieu Nativo/Native

Lobina moteada/Spotted Bass

Micropterus punctulatus

Nativo/Native

Lobina rayada, robalo rayado/Striped Bass

Morone saxatilis

Introducida/introduced

Lobina rayada hibrida/White Bass

Morone chrysops

Introducida/introduced

Lobina de florida, Floridae/Florida Bass

Micropterus salmoides floridaus

Introducida/Introduced

Robaleta Negra, Crappie/Black Crappie

Pomoxis nigromaculatus

Robaleta Blanca, Crappie/White Crappie

Pomoxis annularis

[ Robalo dienton, lucio perca walley/Walleye

Stizosteidon vitrium

Introducida/introduced |

Source: Orbe-Mendoza y Hernandez-Montaiio, 2000.

Binational Fisheries Management Plan


International Boundary and Water Commission (IBWC)

IBWC responsibilities and obligations include dam operation and management, gauging
stations, water quality, hydrologic resources, boundary obstructions, and the power plant.
Laws and agreements directing the IBWC's management include the 1944 Water Treaty,
1970 Water Treaty, NEPA (PL 91-190, 40 CFR 1500), TCEQ (337.201, 337.212), Flood
Plain Management (E.O. 11988), and the Clean Water Act (PL 92-500, 33 USC 1251-
1387).

Mexico

Secretaria de Agricultura, Ganaderia, Desarrollo Rural y Pesca (SAGARPA)
[See Appendix III for organizational structure]

Fishing has been present in Mexico before the conquest, in colonial times, during
independence and during the times of the reform (1860s). During the times of the
“Porfiriato” (1876-1910), the Department of Development, Secretaria de Fomento,
regulated this activity. In post-revolutionary Mexico (1930-present), the regulation of
this activity corresponded first to the Department of Economics, Secretaria de Economia,
then to the Fishing Undersecretary, Subsecretaria de Pesca, of the Department of
Commerce, Secretaria de Comercio, with the Departments of the Navy and Water
resources, Secretarias de Marina y de Recursos Hicrdulicos, also intervening in the
regulation of this activity. In 1976, during the Lopez Portillo administration, all the
fishing regulatory functions were placed under the Fishing Division, Departmento de
Pesca. In 1982 the Fishing Department, Secretaria de Pesca, was established and then in
1994, it became part of the Department of the Environment, Secretaria del Medio
Ambiente. Recently, in December of 2000, the Organic Law of Public Administration
mandated that, starting in August 2001, fishing be managed through the National Fishing
Commission, Comision Nacional de Pesca.

During the different times that the government has regulated and promoted fishing,
several laws and regulations have been passed. Some articles have also been derogated
to make fishing more suitable to the prevailing circumstances. The current fishing law,
Ley de Pesca, was drawn up in June 9, 1992; its by-laws and amendments were published
in the daily register, Diario Oficial, on September 9, 1999.

The legal framework that regulates fishing activities is formed by laws, by-laws, accords,
memorandums, official norms and agreements. However, the Fishing Law, Ley de Pesca,
is what directly rules this activity.

e The fishing law contains:
Chapter I - General dispositions.
Chapter II — Concessions, permits and authorizations.
Chapter IJ — Research and training.
Chapter IV ~ Inspections, violations and sanctions.

Binational Fisheries Management Plan SI



Project Title: Creel census of anglers at Amistad Reservoir.

Abstract

Amistad International Reservoir is a multi-purpose reservoir that impounds the Rio
Grande and Devils River. The reservoir was completed in 1968 and contains over 800
miles of shoreline and 65,000 shared acres (26,300 hectares) of surface waters between
Mexico and the United States. Amistad Reservoir is one of the largest and most popular
bass fishing resources in the state of Texas. Agencies involved in the management of
fisheries resources for this reservoir include the National Park Service, Texas Parks and
Wildlife Department, the United States Fish and Wildlife Service, and the Secretary of
Agriculture, Livestock, Rural Development, Fisheries and Nutrition (SAGARPA,
Mexico). A one-year international creel census of anglers is needed to estimate the
current fishing pressure at Amistad Reservoir and will be used to effectively design an
economic analysis to better understand angler socio-demographic characteristics,
attitudes, opinions, and preferences.

Statement

The creel census is the first step in a two-year project. The creel census will provide the
following information for conducting an economic analysis during the second year of
work. During each creel intercept of fishing parties at the lake, a randomly selected
angler in each fishing party will be informed of the future study, provided with an
information sheet about the project, and asked to cooperate. The objective is to
determine an adequate sample size needed for representing local Texas anglers, local
Mexican anglers, non-local Texas anglers, non-local Mexican anglers, out-of-state US
anglers, and out-of-state Mexican anglers to detect differences in angler expenditures,
socio-demographic characteristics, attitudes, opinions, and preferences between these
groups.

A creel census will obtain the necessary information for conducting an economic analysis

of anglers and tournaments. The following information will be obtained from a creel

census.

« Determination of catch and harvest rates and species size distribution.

© Collection of names and addresses of anglers intercepted during census on Mexico
and United States waters.

¢ Determination of sample size to achieve a 95% confidence interval for angler groups.

e Create survey estimates that are representative of the total reservoir boat angler
population with a +/- 5% margin of error.

Objectives

e Provide an estimate of fishing effort and the proportion of the effort contributed by
local Texas, local Mexican, non-local Texas, non-local Mexican, out-of-state United
States, and out-of state Mexican anglers.

© Provide estimates of catch and harvest rates and species size distribution.

Binational Fisheries Management Plan 58



Within Mexico, sport fishermen want to improve the fishing potential of this
resource. They also want sustainable development of the fishing resources of the
reservoir. There is, however, a need for more promotional efforts on the part of the sub-
delegation of fishing, Subdelegacién de Pesca. This agency needs to provide more
information about minimum sizes and maximum number of specimens that can be
harvested. The sub-delegation also has to facilitate the process of obtaining permits;
especially for the American fishermen who come during the weekend, when its offices
are closed. The agency should also communicate the need for more tourist infrastructure
for the proper development of sport fishing in Mexico.

Additionally, the sub-delegation agency should use the media to promote recreational
fishing and inform the public of prohibited activities and the requirements to practice this
sport, Finally, the agency should install signs that adequately show how to access the
reservoir.

Binational Fisheries Management Plan 31



COOPERATIVE MANAGEMENT PROGRAM

Management goals

All parties to this Binational Fisheries Management Plan agree to the following
common goals and objectives in carrying out a cooperative effort in the management of
the fishery resources of Amistad Reservoir. Tasks which are necessary to achieve our
common goals and objectives are identified and will be carried out by the parties
indicated to fulfill this cooperative endeavor.

Goal I: Establish a lasting working relationship between United States, State of Texas,
and Mexico managers with responsibility for fisheries and aquatic resources in Lake
Amistad.

Objective: Establish a binational management program based on a Fisheries
Management Plan that will provide future conservation managers with guidelines and
agreements for the management of the recreation, fisheries, and aquaculture found at
Amistad Reservoir.

Task: Complete a Binational Fisheries Management Plan and further develop a
binational management program of communication and cooperation (Texas Parks
and Wildlife Department, National Park Service, US Fish and Wildlife Service,
Secretaria de Agricultura, Ganaderia, Desarrollo Rural, Pesca y Alimentacion;
Commision Nacional de Pesca; Secretaria de Fomento Agropecuario e Instiuto
Estatal de Turismo del Gobierno del Estado; Instituto Nacional de la Pesca;
Comision Nacional del Agua; Secretaria de Comunicaciones y Transportes).

Task: Review the Binational Plan, modify as necessary, and renew agreements
for continued binational cooperation at 5 year intervals (all signing agencies).

Task: Improve the coordination and data sharing of water quality monitoring
activities on Amistad Reservoir (SAGARPA, CILA, CNA, TCEQ, IBWC,
TPWD, USGS).

Objective: Ensure that efforts to implement the Binational Fisheries Management Plan
are coordinated.

Task: Signatories (or representative of signatories) of the plan meet at least once
a year to discuss progress toward management goals and coordinate planned
activities. The agencies may meet more frequently if necessary (all signing
agencies).

Task: In addition, these agencies agree to inform each other of all management
actions that potentially have an effect on reservoir fisheries (e.g., stocking species,
changing harvest regulations, or initiating new fisheries activities) prior to
implementation. See Appendix II for agency contacts.

Binational Fisheries Management Plan 32



Amistad NRA General Management Plan (Development Concept Plan) - April 27, 1987
- Management objectives are described in the plan. For resource management, the plan
states that the management objectives are to "Protect the quality of water in the lake from
internal and external pollution threats," "Maintain a high quality fishery," and under
cooperation, "Integrate activities with other agencies sharing responsibility for reservoir
and/or recreation area management." Also included under cooperation is the desire to
"Continue liaison and cooperation with the government of Mexico." Amistad NRA is
scheduled to finalize a new GMP in fiscal year 2007.

Amistad NRA Resources Management Plan - The Resources Management Plan for
Amistad NRA was approved in August of 1998. Twenty-eight natural resource project
statements are included in this document. AMIS-N-058.001 references the Fisheries
Management Plan project.

Strategic Plan - Fiscal Years 2001-2005. This plan was developed from the

requirements of the Government Performance and Results Act, 1993. The Strategic Plan

contains the following mission goals:

© Goal Category I— Preserve Amistad National Recreation Area's Resources. Two
mission goals are included under this category.

¢ Mission goal Ia: Natural and cultural resources and associated values are
protected, restored, and maintained in good condition and managed within their
broader ecosystem and cultural context.

¢ Mission goal Ib: The National Park Service contributes to knowledge about
natural and cultural resources and associated values; management decisions about
resources and visitors are based on adequate scholarly and scientific information.

¢ Goal Category II — Provide for the public use and enjoyment and visitor experience of

Amistad National Recreation Area. Two mission goals are included under this

category.

* Mission goal Ila: Visitors safely enjoy and are satisfied with the availability,
accessibility, diversity, and quality of park facilities, services, and appropriate
recreational opportunities.

¢ Mission goal IIb: Park visitors and the general public understand and appreciate
the preservation of the park and its resources for this and future generations.

© Goal Category III — Strengthen and preserve natural and cultural resources and
enhance recreational opportunities.

Fishing Tournament Policy - Fishing tournaments are considered special park uses by
the NPS and are governed by the following Amistad NRA policy: "As with any special
park use, a permit must be requested in advance to allow the park superintendent to
confirm that the tournament follows the appropriate laws, is within the values and
purposes for which the park was established, that public safety is paramount, that the
property and resources are protected, and that normal activities and operations of the park
can be continued.” A special use permit is required when any fishing tournament exceeds
ten boats.

Binational Fisheries Management Plan 47



Table 5. Changes in Fish Species in the Rio Sabinas, Muzquiz, Coahuila between 1959 and 1994

7

“59
LVG

78
ScB

“85
GAG

WW
I

“94a
SCB

“94m
SCB

“94b
SCB

Notropolis
saladonis

R

++

EXTINCT

Gambusia
marshi

R

HW

IMPACTED

Ictalurus lupus

R

i

IMPACTED |

Notropus
jemezanus

i

IMPACTED

Notropus
ludibundus

i

IMPACTED

Moxostoma
congestum

PP

IMPACTED.

Etheostoma
grahami

PP

IMPACTED

Cyprinella
cf.rutila

x

<x) x | DaixK | wv

It

IMPACTED

Notropis
amabilis

x<

PP

IMPACTED

| Dionda cf.
punctifer

x | x | &K | xX

i

IMPACTED

Dionda diaboli

EP

IMPACTED

Lepomis
megalotis

x

I

x

Astyanax
mexicanus

I

x | * |x| «| & | w

x<

Cichlasoma
cyanoguttatus

«x | x | & LK) KY] Ox

i

«x | & | & LK) &K | OK

Lepomis
macrochirus

I

Micropterus
salmoides

«x | «K | «KL KL OK Lx O&K

i

x

Gambusia
affinis

x

I

R

Di x« | «| x

Dix“) «| xX

++ — Species recently extinct due to poor management.
EP — In danger of extinction. This species should be protected by all authorities in the

country under Ley de Normatividad, August 2, 1993.
PP — Threatened. These species appear to have a threat of extinction as of May 17, 1991.
LVG, GAG, and SCB = Collections of Luciano Val Guerra, Graciela Arocha Gomez, and
Salvador Contreras Balderas.

Binational Fisheries Management Plan



native species for introduction into ecosystems outside the US where they do not occur
naturally.

50 CFR 17 — Endangered and Threatened Wildlife and Plants

50 CFR 81 — Conservation of Endangered and Threatened Species of Fish, Wildlife, and
Plants (Cooperation with the states)

50 CFR 40 — Endangered Species Act of 1973, as amended (Interagency Cooperation)

Texas Parks and Wildlife

Wildlife Conservation Act (1983) — Texas Legislature placed authority for managing fish
and wildlife resources in all Texas counties with the Texas Parks and Wildlife
Department when it passed the Wildlife Conservation Act in 1983.

The Texas Parks and Wildlife Code was enacted by §1 of Acts 1975, 64" leg., p. 1405,
ch. 545, effective September 1, 1975. Section 2 thereof repealed enumerated articles of
the Texas Civil Statutes and Penal Code of 1925 as well as local and special game and
fish laws.

The Texas Parks and Wildlife Code provides authority to the Texas Parks and Wildlife
Department to conduct scientific surveys of fish and game populations and regulate
harvest seasons, bag limits, and means and methods of taking fish and game species.
Amended by Acts 1997, 75" Leg, ch. 1256, §1, eff. Sept. 1, 1997.

Binational Fisheries Management Plan 50


Methods

A random access point creel will be conducted across 4 quarters (Spring - March 1
through May, Summer - June | through August, Fall - September | through November,
and Winter - December | through February) at Amistad Reservoir on the US and
Mexican side. An access point creel design is preferred over a roving creel because of 1)
the large size of the reservoir compared to limited number of access points (5), and 2) an
access point creel would provide observations of completed versus partial fishing trips.

Creels will be divided into 3-hour morning, 3-hour mid-day, and 3-hour evening creels as
well as weekday and weekend creels. A creel schedule generator program will be used to
randomly select a minimum of 48 creel days (12 creel days for each quarter). Ramp
access site selection, weekend to weekday ratio and seasonal effects will be adjusted
based on the proportions estimated by the pre-creel trailer counts. Creel clerks will count
all anglers that exit the access points, including those not interviewed. Creel clerks will
obtain angler names, addresses, and phone numbers and record fish species, length,
weight, catch and harvest information from as many anglers as possible.

Four surveys will be administered. In Texas, the creel clerks will record names,
addresses and phone numbers of anglers contacted during creel activities for one year
starting in March, 2001. These anglers will receive a survey by mail no more than three
months after contact with creel clerks. Also in Texas, tournament rosters of participants
in bass tournaments including names, addresses and phone numbers will be obtained
from tournament organizers, and these anglers will receive surveys by mail no later than
three months following the tournament activity. In Mexico, recreational anglers will be
administered an onsite survey during creel activities. A separate survey will be designed
and administered to commercial anglers in Mexico. US and Mexican, non-tournament
recreational anglers will be checked for duplication of effort.

Binational Fisheries Management Plan 59



Binational Fisheries Management Plan



Water Resources Scoping Report. 2001. Technical Report NPS/NRWRD/NRTR-
2001/295. Amistad National Recreation Area. National Park Service. Department of the
Interior.

Wilde, G.R., D.H. Larson, W.H. Redell and G.R. Wilde Ill. 2002. Mortality of Black
Bass Captured in Three Fishing Tournaments on Lake Amistad, Texas. Texas J. Sci.
54(2):125-132.

Binational Fisheries Management Plan 39



PUBLIC INVOLVEMENT AND ENVIRONMENTAL IMPACT
REVIEW

The signatory agencies have determined that this plan is categorically excluded from
environmental impact review under the US National Environmental Policy Act (NEPA)
and the Environmental Policy Act of the State of Texas, as it does not propose specific
new management actions. The completed plan will be made available to the public.

Implementation of specific projects or management actions that may be developed or
proposed as a result of this plan will require full compliance with the above Acts,
Mexico’s environmental review process, and/or all other federal environmental initiatives
and policies. This compliance might range from additional categorical exclusions to a
full Environmental Impact Statement, depending on the magnitude of the project and
public interest. Projects within the reservoir may require Corps of Engineer (COE)
permits. NEPA actions and COE permits will require public review and comment. The
necessary permits and environmental compliance will be acquired during project
planning and development.

Binational Fisheries Management Plan 37



Methods

Gill nets will be set at 15 randomly selected sites on the United States side of the
reservoir. Gill nets will also be set at 5 randomly selected sites on the Mexico side in an
area subjected to commercial harvest. Collections will be made in January 2002.

Electro-fishing data will be collected at 24 randomly selected sites on the United States
side of the reservoir. Collections will be made in November 2001.

Creel surveys will be conducted from March 2002 through February 2003.

Water sampling and habitat evaluation will be conducted in conjunction with gill net and
electro-fishing surveys.

Data on rough fish will be collected by TPWD biologists during scheduled gill net
collections. Catch per Unit of Effort (CPUE) recorded as number of fish collected per
net-night (one net set overnight) will be calculated for rough fish species.

Budget

In-Kind Services, TPWD Personnel

Gill Net Collections (12 man days) $1200
Electro-fishing (20 man days) $2000
Creel Survey (Project 2)
Habitat evaluation (6 man days) $ 600
Per diem $1500
Vehicles (1500 miles @ .28/mile) $ 420

Project Title: Develop sport fishing tournament weigh-in facilities.

Abstract

Sport fishing tournaments are an extremely popular recreational activity at Lake Amistad
and are vital to the local economy. Some of the larger U.S tournaments will contain as
many as 250 boats. Neither the United States nor Mexico side of the reservoir currently
have adequate facilities to accommodate these large tournaments. Tournaments usually
require participants to hold their fish in live wells and release their catch after a formal
weigh-in. The development of better fish weigh-in facilities is needed to reduce fish
mortality. This project will result in the development of design and construction
specifications for a highly functional tournament landing facility and associated on-site
improvements for accommodating parking. One or more tournament landing facilities
will then be constructed utilizing lake access/tournament permit fees.

Statement

The number of recreational fishing tournament events at Lake Amistad has increased
annually since the mid 1980’s and now includes around 150 tournaments per year on the
US side of the reservoir alone. Often there are multiple tournaments occurring at the
same time. Some of the larger U.S tournaments will contain as many as 250 boats. In

Binational Fisheries Management Plan 62


Binational management plan purpose and need

There are two US Federal agencies and one US State agency, one Federal Mexico
agency, one Mexico Federal National Fisheries Commission, and one State Mexico
Agency with interest and management responsibility for the fishery resources of Amistad
Reservoir. There is no common management plan in place. Both the US and Mexico
have promoted and regulated fish harvest, and carried out independent fish stocking
practices in the past with no coordinated management goals. This plan was developed to
provide a mechanism for coordination in fisheries management actions among the state of
Texas, the US National Park Service, the US Fish and Wildlife Service, the Secretaria de
Agricultura, Ganaderia, Desarrollo Rural, Pesca y Alimentacion (SAGARPA) and
Comision Nacional de Pesca (CONAPESCA). Each of these agencies has
responsibilities for management and use of the fishery resources of the reservoir and their
legislated mandates for management must be accommodated. In the past, different
regulations, management philosophies, and missions among these government entities
have led to the absence of a unified approach to managing the reservoir fisheries and
potentially conflicting management actions. This plan seeks to provide a more unified
approach which hasn’t existed in the past. Through a Binational Fisheries Management
Plan, coordinated management of fish stocks, consistent and complementary harvest
regulations, coordinated biological and chemical monitoring, and coordinated fish
stocking and habitat management actions can begin to occur. This plan attempts to lay
out agreements in regard to communication protocols, management goals and strategies,
law enforcement assistance, joint public education and information efforts, public access,
and important scientific studies to be undertaken.

Process used to develop cooperative plan

On October 2, 1998, natural resource staff from Amistad NRA and fisheries
management staff from SEMARNAP and INP met on the shores of Amistad Reservoir
near Playa Tlaloc, Mexico. The visit was arranged to observe cooperative commercial
fisheries activities and learn about the monitoring project SEMARNAP was conducting
on the cooperatives. Many questions and requests for information were shared and
developed between the participants, showing a need for improved communication
between management agencies. Over the following six months, it was decided by area
State and Federal managers that a goal to improve the management of the shared fisheries
resources for Amistad Reservoir was needed.

During 1999, natural resource staff from Amistad NRA, staff from the Water
Resource Division for the NPS, and staff from SEMARNAP in Ciudad Acufia, Mexico,
developed a proposal to fund the creation of a Binational Fisheries Management Plan.
The proposal received a two year funding approval through the United States Department
of the Interior US-Mexico Border XXI program initiative for fiscal years 2000 and 2001.

On September 19th and 20th, 2000, the first fishery meeting was held in Ciudad
Acufia, Mexico. Representatives from the United States and Mexico fisheries
management agencies met to share mandates, problems in the management of fisheries at

Binational Fisheries Management Plan 7


16 U.S.C. 1531-1544 — Endangered Species Act of 1973, as amended, provides for the
conservation of ecosystems upon which threatened and endangered species of fish,
wildlife, and plants depend, both through Federal action and by encouraging the
establishment of State programs. The Act authorizes the determination and listing of
species as endangered and threatened; prohibits unauthorized taking, possession, sale,
and transport of endangered species; provides authority to acquire land for the
conservation of listed species, using land and water conservation funds; authorizes
establishment of cooperative agreements and grants-in-aid to States that establish and
maintain active and adequate programs for endangered and threatened wildlife and
plants; and authorizes the assessment of civil and criminal penalties for violating the Act
or regulations. Section 7 of the Endangered Species Act requires Federal agencies to
ensure that any action authorized, funded or carried out by them is not likely to
jeopardize the continued existence of listed species or modify their critical habitat.

Executive Order 12962 — Recreational Fisheries signed on June 7, 1995, mandates that
Federal agencies improve the quantity, function, sustainable productivity, and distribution
of US aquatic resources for increased recreational fishing opportunities by such activities
as: developing and encouraging partnerships between governments and the private sector
to advance aquatic resource conservation and enhance recreational fishing opportunities;
identifying recreational fishing opportunities that are limited by water quality and habitat
degradation and promoting restoration to support viable, healthy, and, where feasible,
self-sustaining recreational fisheries; fostering sound aquatic conservation and restoration
endeavors to benefit recreational fisheries; supporting outreach programs designed to
stimulate angler participation in the conservation and restoration of aquatic systems; and
implementing laws under their purview in a manner that will conserve, restore, and
enhance aquatic systems that support recreational fisheries. In addition, this order
establishes a National Recreational Fisheries Coordination Council which will oversee
the various Federal agencies’ actions and programs to ensure that they accomplish the
goals set forth in this order. Concerning the potential overlap of this order and the
Endangered Species Act of 1973 (ESA), all Federal agencies are instructed to
aggressively work to identify and minimize conflicts between recreational fisheries and
their respective responsibilities under the ESA.

Executive Order 13112 — Invasive Species signed on February 3, 1999, requires Federal
agencies, to the extent permitted by law, to prevent the introduction of invasive species
and provide for their control, as well as to minimize the economic, ecological, and human
health impacts that invasive species cause.

Executive Order 11987 — Exotic Organisms signed on May 24, 1977, requires Federal
agencies, to the extent permitted by law, to: restrict the introduction of exotic species into
the natural ecosystems on lands and waters owned or leased by the United States;
encourage States, local governments, and private citizens to prevent the introduction of
exotic species into natural ecosystems of the US; restrict the importation and introduction
of exotic species into any natural US ecosystems as a result of activities they undertake,
fund, or authorize; and restrict the use of Federal funds, programs, or authorities to export

Binational Fisheries Management Plan 49



Appendix VI. Protocols for implementing new management
recommendations

The following are individual agency protocols for implementing new management
regulations. These protocols would be applicable to the establishment of any new or
changed regulations on Amistad Reservoir under that agency’s authorities.

Texas Parks and Wildlife Department regulation process:

e Regulation proposal is submitted by TPWD Fisheries Biologist (or other branch).
Proposal is peer reviewed by entire TPWD fisheries staff.

« Regulation proposals are presented at scoping meetings (Regulatory Hearings) held at
selected sites statewide, to members of the Texas Freshwater Advisory Board, and to
Game Wardens during game warden/biologist meetings. Public input is received,
recorded and submitted to TPWD Commissioners.

¢ Proposals are presented to TPWD Commissioners.

e Special Commissioner’s meeting is held where public input is again received. After
review, proposals are voted on by Commissioners.

¢ If approved, regulations become effective following September 1*.

National Park Service regulation process:

Rules applicable to individual units in the National Park Service are found in Title 36,
Code of Federal Regulations (CFR), Chapter I. A rule (also called a regulation or
rulemaking) is a document to implement or interpret law or policy.

Parks can make new regulations applicable to their areas through the federal regulatory

system:

1.A notice of proposed rulemaking must be published in the Federal Register. The
proposed rule must set forth the plan/intention for the rule and solicit public
comment.

2.The park evaluates the public’s comments and, if necessary, modifies the proposal and
publishes the final rule in the Federal Register.

3.Once a rule is published in final, it is codified in the Code of Federal Regulations and
remains in effect until it is modified by publication of another rule.

The CFR also requires the superintendent to compile in writing all local designations,
closures, permit requirements and other restrictions imposed under their discretionary
authority, as provided in individual CFR sections.

Mexico regulation process:

The Federal Government of Mexico, in conjunction with the states of Mexico, is in the
process of developing regulation implementation protocols and will provide those to the
plan in the future along with the Amistad Reservoir Official Mexican Fishing Law
(fishing regulations are included on pages 10, 20 and 21).

Binational Fisheries Management Plan 55



AGENCY MISSION STATEMENTS

United States

National Park Service

The Mission of the National Park Service at Amistad National Recreation Area is
stated in the strategic plan, as follows: "The National Park Service is committed to
protecting the scenic, scientific, cultural, and other values that contribute to the public
enjoyment of lands and waters at Amistad National Recreation Area. We are dedicated
to conserving unimpaired the natural and cultural resources and values for the education
and inspiration of this and future generations.”

US Fish and Wildlife Service

The mission of the US Fish and Wildlife Service is to work with others, to conserve,
protect and enhance fish, wildlife, and plants and their habitats for the continuing benefit
of the American people. The Service helps protect a healthy environment for people, fish
and wildlife, and helps Americans conserve and enjoy the outdoors and our living
treasures. The Service's major responsibilities are for migratory birds, endangered
species, certain marine mammals, and freshwater and anadromous fish.

Texas Parks and Wildlife Department

The mission of Texas Parks and Wildlife Department is to manage and conserve the
natural and cultural resources of Texas and to provide hunting, fishing and outdoor
recreation opportunities for the use and enjoyment of present and future generations.

The mission of Texas Parks and Wildlife Department Inland Fisheries Division is to
provide the best possible fishing while protecting and enhancing freshwater aquatic
resources.

Goal: Make Texas freshwater fishing the best in the world.

International Boundary & Water Commission

Our mission is to provide environmentally sensitive, timely, and fiscally-responsible
boundary and water services along the United States and Mexico border region. We
pledge to provide these services in an atmosphere of Binational Cooperation and in a
manner responsive to public concerns.

Mexico

SAGARPA

The current mission of SAGARPA is to achieve the development of a new rural
society based on sustainable growth in the sectors of agriculture and fisheries with
continuing training and improvement that allow productivity, profitability, and
competition in fisheries, agriculture, among other natural resources.

Binational Fisheries Management Plan 9



BINATIONAL FISHERIES MANAGEMENT PLAN

Amistad National Recreation Area
National Park Service

Del Rio, Texas

Approved: bl... UW. C4 ¥% 2G

Superintendent Date
Amistad National Recreation Area

Approved: Pb. Pdacoekee E/z]ob

Director, Intand Fisheries "Date
Texas Parks and Wildlife Department

Approved:

(Mexico is not a signatory at this time) Date

Binational Fisheries Management Plan



northwest section of the reservoir on the Mexico side is almost entirely surrounded by
private property, which greatly limits potential locations for expanded public access.

Record drought conditions from 1992-2002 resulted in a significant downturn in the
reservoir water level, resulting in major disruptions to visitor use facilities. Most of the
boat launch ramps on the United States side of the reservoir were inoperable in 2001. In
August of 1998, when Amistad Reservoir reached its historic low water level of
1058.62’, as few as 2 of the 17 developed launch ramps were in use. The Pecos River
launch ramp, the only launch ramp on the western end of the reservoir, didn’t return to
operation until the water level increased to 1086’ in March of 2004.

IBWC has advised that the reservoir may rarely, if ever, maintain a full conservation
pool level. Visitor complaints and dissatisfaction about the closure of high-water
facilities, and lack of access at low water levels, is expected to remain an issue.

Water quality/quantity/regulation

The issue of water quality is secondary to water quantity at this time. Low flows
entering the reservoir and a rapidly declining water level (during fish spawning seasons)
negatively impact fish spawning and recruitment.

It is recommended that one goal for water managers is to maintain a stable water level
for a period of 2 months after the major spawning season for largemouth bass.

Conflicting use

Other than perceived problems between sports fishermen and commercial fishermen,
the possibility of conflict between personal watercraft (jet skis), ski boats and anglers
could arise. However, at current use levels, conflicts do not seem to exist. Because of
the size of Amistad, it is felt any such conflict could be easily resolved through the
implementation of specific-use zones.

Education and outreach

The public holds numerous misperceptions about the fisheries and conditions at
Amistad. Examples include Mexico fishing license requirements, impacts of the
commercial fishing cooperatives, and tournament effects on the black bass population.
There is a general need for better public education concerning fisheries management.

The final approved Binational Fisheries Management Pian should be presented to
interested parties in Del Rio and in Ciudad Acufia. Bulletin boards at major access points
should be utilized to promote the management plan. In addition, public scoping meetings
will be mandated when any new regulation proposal is made, and communication
between the US and Mexico should continue.

Binational Fisheries Management Plan 30



A complete list of fish species known to occur within Amistad Reservoir and in-flow
areas based on Texas Parks and Wildlife Department observations is presented in
Appendix I.

Threatened and endangered species

Goodenough Spring was inundated under Amistad Reservoir during its initial filling.
This large, natural spring was the home of the only population of Amistad gambusia
(Gambusia amistadensis), a small fish in the Poeciliidae (livebearer) family. The species
was listed as federally endangered in 1980 (45 FR 28721) because of the loss of its
habitat at Goodenough Spring under the reservoir and the only known populations were
being held in captivity. By 1984, the captive reserves had died out or were lost to
hybridization with the common mosquitofish, resulting in the extinction of the species.
Amistad gambusia was removed from the Federal endangered list in 1987 (45 FR 28721)
after being confirmed as extinct.

The Devils River minnow (Dionda diaboli) is a small, native fish in the Cyprinidae
(minnow) family. Its historic range included the Devils River from near the mouth of the
Rio Grande to the headwater springs near Juno. As a result of the construction of
Amistad Reservoir and the subsequent changes in the aquatic habitat and fish community,
the species has apparently been extirpated from downstream of Dolan Falls in the Devils
River. Ongoing efforts to document the current distribution of the Devils River minnow
may expand the current range in the Devils River. The only other confirmed locations of
this species in Texas are Pinto Creek in Kinney County and San Felipe Creek in the City
of Del Rio. Devils River minnow was listed, without critical habitat designated, as a
Federally threatened species in October 1999 (56 FR 58804). The US Fish and Wildlife
Service completed a Recovery Plan in September of 2005. There is an existing
Conservation Agreement for this species between the US Fish and Wildlife Service,
Texas Parks and Wildlife Department and the City of Del Rio.

Interior least terns (Sterna antillarum) are small 20.3 — 22.9 cms (8 ~9 inches)
shorebirds that breed in isolated areas along the Missouri, Mississippi, Ohio, Red, and
Rio Grande river systems. Their wintering sites include coastal areas of Central and
South America. From late April to August, terns nest on barren to sparsely vegetated
sandbars along rivers, sand and gravel pits, or lake and reservoir shorelines. Interior least
terns have been documented breeders at the Amistad Reservoir since 1989. Preferred
nesting habitat is found on islands with no vegetation or fire ants. These habitats occur
during spring draw down of the reservoir, when islands emerge from inundation. The
least tern has been listed as a Federal endangered species since 1985 (50 FR 21784).

Prior to the construction of Amistad Reservoir, a number of rare fishes may have
inhabited the Rio Grande, Pecos and Devils Rivers that are now recognized as threatened
or endangered by the State of Texas. These species, now likely extirpated from the area,
include: shovelnose sturgeon (Scaphirhynchus platorynchus); Rio Grande silvery
minnow (Hybognathus amarus); Rio Grande bluntnose shiner (Notropis simus simus);
proserpine shiner (Cyprinella proserpina); blue sucker (Cycleptus elongates); Conchos

Binational Fisheries Management Plan 18





Morone chrysops
Morone saxatilis
Lepomis auritus
Lepomis cyanellus
Lepomis gulosus
Lepomis macrochirus
Lepomis megalotis
Lepomis microlophus
Micropterus dolomieu
Micropterus salmoides
Pomoxis annularis
Etheostoma grahami
Percina caprodes
Stizostedion vitreum
Aplodinotus grunniens
Cichlasoma cyanoguttatum
Oreochromis aureus

white bass
striped bass
redbreast sunfish
green sunfish
warmouth

bluegill

longear sunfish
redear sunfish
smallmouth bass
largemouth bass
white crappie

Rio Grande darter
logperch

walleye
freshwater drum
Rio Grande cichlid
blue tilapia

Abundant
Abundant
Abundant
Abundant
Abundant
Abundant
Present
Present
Present
Abundant
Present
Present
Abundant
Rare
Present
Present
Present

Reported by SAGARPA Mexico

Ictalurus catus

Ictalurus melas

Ictalurus nebulosus
Micropterus punctulatus
Pomokis nigromaculatus
Catostomus comersonni
Ictiobus cyprinellus
Pimephales promelas

White catfish

Black bullhead catfish
Brown bullhead catfish

Spotted bass
Black Crappie
White Sucker
Bigmouth buffalo
Flathead minnow

Binational Fisheries Management Plan


« Promote the advancement of sport fishing that will increase fishermen’s income.

¢ Utilize Norma Oficial Mexicana NOM-017-Pesc-1994, to regulate sport fishing
activities in the waters under the jurisdiction of Mexico.

« Undertake a socioeconomic fishery study.

¢ Establish an official Mexican law to regulate the development of the fisheries
resources of Amistad Reservoir.

Habitat limitations

Amistad Reservoir experiences dramatic water level fluctuations and on August 5,
1998, the reservoir was more than 58 vertical feet (17.7 meters) below conservation pool
level (see Figure 2 for historic water surface elevation for Amistad Reservoir). From
1992 through 2002, the reservoir fluctuated at approximately 25% of capacity due to a
regional drought.

Spawning success of nest building centrachids, including largemouth bass, may be
enhanced by stable conditions during the spawning season. Downstream water demand
and reservoir drawdown during the spring spawning period may impact year class
production.

Spawning success of free spawners, such as striped bass and white bass, may be
enhanced by rising water levels when there is adequate flow into the reservoir. Periods of
drought, low lake levels, and low flows may negatively impact the spawning success of
these fish.

Given that many fish of commercial and recreational importance may be affected
when CILA and IBWC increase water releases for downstream needs in the spring,
adjustments in the timing and duration of water releases may enhance spawning success
of recreationally and economically important species in Amistad Reservoir.

Binational Fisheries Management Plan 26


Objective: Assign economic values to all aspects of the fishery on Amistad
Reservoir.

Task: Design and conduct a cooperative economic study (TPWD, NPS,
SAGARPA).

Objective: Determine angler use/attitudes.

Task: Conduct a creel survey to determine current angler usage and collect
names and addresses for a follow-up economic study (NPS, TPWD, SAGARPA).

Goal 5: Maintain the overall health and viable populations of native and endemic fish
species that occur within the localized watershed of Amistad Reservoir.

Objective: Protect native fish populations found in Amistad Reservoir and within the
immediate watershed.

Task: Conduct fish inventories on the Rio Grande, Pecos, and Devils Rivers to
determine presence and current population status of native fish species. These
surveys would occur at locations determined by all participating agencies.
(TPWD, SAGARPA, USFWS, NPS).

Objective: Promote native fish populations found in Amistad Reservoir.

Task: As a recognized protocol, stock when feasible, native fish in the Amistad
Reservoir for sport and commercial uses. (TPWD, SAGARPA).

Task: Control the introduction of fish species to the Amistad Reservoir and local
watershed that are not on the above list of desired species (see Goal 3). Follow
specific agency criteria when stocking non-specified species for sport and
commercial use (TPWD, SAGARPA, NPS, USFWS). See Appendices IV and V.

Goal 6: Maintain or improve sport fishing access to Amistad Reservoir.

Objective: Ensure that Amistad Reservoir remains accessible for sport fishing at all
water levels.

Task: Plan for the development of one permanent low-water boat ramp for the
Mexico side of the reservoir (SAGARPA, CILA).

Goal 7: Improve angler understanding of fishing regulations, fees, and license
requirements for Amistad Reservoir in both Mexico and the United States.

Binational Fisheries Management Plan 35



Invasive species

Hydrilla (Hydrilla verticillata) is a non-native macrophyte found in Amistad
Reservoir. The major problem associated with this species is the plant’s fast growth,
which can render the areas where it is found unusable. Hydrilla can clog canals, hinder
access to boat docks and make shoreline fishing difficult if not impossible. Problem
areas are most often associated with developed to highly developed areas. In Amistad
Reservoir, the majority of the shoreline is without development, and the reservoir is
deeper than many others. As a result, Hydrilla has not created any problems to date and
control measures have not been recommended.

Prymnesium parvum, a species of golden alga, was documented in Texas for the first
time in the Pecos River in the 1980’s. The alga is toxic to gill breathing organisms, but is
not known to harm humans or other species. The alga has not been documented in the
reservoir proper.

On the Mexico side of the reservoir there have been no problems with aggressive
species, except possibly with the striped bass that was introduced on the United States
side of the reservoir. This bass is very aggressive and voracious and potentially
represents a negative impact on other aquatic fauna. The striped bass was introduced by
the United States but the full extent to the impact on Lake Amistad has not been
determined. Many scientific manuscripts have been published which indicate striped
bass primarily eat gizzard shad and have little impact on other fish populations in
reservoirs (Axton and Whitehurst, 1985; Bettoli et al, 1995; Combs, 1979, 1982; Harper
and Namminga, 1986; Jenkins and Morais, 1978; Schramm et al, 1999; Nash et al, 1987).

Status of sport fisheries

Three major sports fisheries are found at Amistad within the US portion of the
reservoir- catfish, largemouth bass and striped bass. A catfish fishery, primarily for
channel catfish, is very popular. Anglers utilize guide services or may bait areas on their
own to aid in location of the fish. The largemouth bass fishery is considered one of the
best in the world. The reservoir is very popular with a large number of largemouth bass
clubs and tournament directors and consequently receives heavy fishing pressure during
the year. The lake record largemouth bass is a 7.13 kilogram (15.68 pound) fish caught
in 2005. The third important fishery is for striped bass. The strength and fighting ability
of this species have attracted many anglers. Amistad at one time held the State Record
for a 20.41 kilogram (45-pound) striped bass.

Under the Federal Aid in Sport Fish Restoration Act, fisheries data has been collected
and reported by Texas Parks and Wildlife Department Inland Fisheries Division. Data
collected includes standing crop estimates, relative abundance (as determined by catch
per unit effort by various sampling techniques), available habitat (structure/vegetation),
age and growth rates of major sports fish, creel survey data (April-June 1985) and limited
angler access and water quality data. Data and corresponding management plans may be
found in Federal Aid in Sport Fish Restoration Act Project F-30-R reports for the

Binational Fisheries Management Plan 21



National Park Service
The General Management Plan for Amistad National Recreation Area provides
general management oversight and direction to the NPS for Amistad NRA.

Texas Parks and Wildlife Department (Inland Fisheries)

The current fisheries management plan for Amistad Reservoir, dated June 31, 2000,
was funded under the Federal Aid in Sport Fish Restoration Act; Project F30R, of the
Texas Parks and Wildlife Department. Current management strategies include: 1)
Statewide Harvest Regulations 2) Continue management and monitoring of the striped
bass population under current regulations and 3) Stock fingerling striped bass annually
based on water level, forage availability, fish condition, and estimated population size.

Secretaria de Agricultura, Ganaderia, Desarrollo Rural, Pesca y
Alimentaci6n (SAGARPA)

Amistad Reservoir Official Mexican Law- In order to develop specific regulations for
commercial and sport fishing for Amistad Reservoir, a socioeconomic study to gather the
required data is needed.

Agreements between management agencies and groups

United States

1965 — The National Park Service entered into a Memorandum of Agreement with the
IBWC on November 11, 1965 to provide for and manage recreation on the reservoir. By
1970, the reservoir was at full capacity, providing a recreational fishery for both Mexico
and the United States.

1975 — A Memorandum of Understanding between The National Park Service and
Texas Parks and Wildlife Department was signed which outlined the areas of
responsibility of the two agencies for the management of fishery resources within the
Texas national park units.

1975-1980 — Florida Bass Rearing Project: An agreement between the City of Del
Rio and the Texas Parks and Wildlife Department. The City of Del Rio leased a hatchery
facility near Del Rio. The TPWD biologist stationed in Del Rio managed the facility for
the purpose of spawning and rearing Florida Bass fingerlings to be stocked into Amistad
Reservoir. Approximately 200,000 Micropterus salmoides fingerlings were raised and
stocked into Amistad annually under the agreement.

1980-1985 — Water Level Stabilization: An agreement was reached whereby the
International Water and Boundary Commission made an effort to stabilize Falcon and
Amistad Reservoirs during spawning periods to enhance largemouth bass production.

Mexico

Binational Fisheries Management Plan 5


maintaining and improving fisheries resources. It was identified as the top priority for
the working team involved in developing the Amistad Binational Fisheries Management
Plan.

Benefits

The following information will be obtained from an economic analysis of recreational
tournament anglers, recreational non-tournament anglers, and commercial anglers on
Mexico and United States waters.

© Total direct angler expenditures.

¢ Total economic impact on the local and state economies of Mexico and the United
States.

Total angler consumer surplus (willingness to pay).

Total recreational and commercial value of fisheries resources.

Angler social and demographic characteristics.

Angler attitudes, opinions, and management preferences.

Determination of angler feedback on a variety of management scenarios to better
meet angler wants and needs and to enhance overall satisfaction.

Description of recommended project

Methods

Conduct an economic analysis of recreational tournament anglers and recreational non-
tournament anglers. Request for funding will be sent through SEPAS Natural Resources
Program NRPP USGS RESEARCH funding source. Dr. Harold Schramm, Jr.,
Mississippi Cooperative Fish and Wildlife Research Unit, Mississippi State University
and Dr. Robert Ditton, Human Dimensions Research Laboratory, Texas A&M
University, Dept. of Wildlife and Fisheries Sciences, are two of the qualified researchers
who have been consulted concerning the proposed economic analysis. 0

Budget: See project number two for budget reference.

References

Thailing, Carole and R. Ditton. 2001. Characteristics, participation patterns, attitudes,
management preferences, expenditures, and economic impacts of Toledo Bend Reservoir
anglers: Texas and Louisiana. Department of Wildlife and Fisheries Sciences, Texas
A&M University. College Station, Texas. 174 pages.

Binational Fisheries Management Plan 57



Appendix Il. Agency contacts

Agency personnel responsible for maintaining the communication network and in
charge of informing working group partners on annual meeting dates and new
management actions for the Amistad Reservoir fishery will be the following:

1. Subdelegate of Fisheries. SAGARPA, Saltillo, Coahuila, Mexico.
2003-2005 Contact: Ing. Severo Flores Aguilar.
Phone (8)44 41 3-09-12 and 413-05-78.
E-mail: pesca@coa.sagarpa.gob.mx; acuacultura@coa.sagarpa.gob.mx

2. District Inland Supervisor. TPWD, San Antonio, TX, USA.
2003-2005 Contact: Randy Myers
Phone: 210-348-6355.
E-mail: randy. myers@tpwd.state.tx.us

3. Chief of Resources Management. NPS, Del Rio, TX, USA.
2003-2005 Contact: Rick Slade.
Phone: 830-775-7491, ext. 204.
E-mail: rick_slade@nps.gov

Binational Fisheries Management Plan

43


Texas Parks and Wildlife Department Organizational Chart for Fisheries
Management at Amistad Reservoir

Commission

Executive Director

Internal Affairs

Executive Office

Internal Audit

Chief of Staff

'

v

'

Director
Law Enforcement

Director
Inland Fisheries

Director
State Parks

|

Director,
Management and
Research

Director Region 1

Supervisor
District 1D San Antonio

Y

Biologist

t

Technician

v
Technician

Binational Fisheries Management Plan

45


Amistad Reservoir, and future needs. Participants left the first meeting with an agreed
goal to "Improve the management of Amistad Reservoir fisheries through inter-agency
and international cooperation." Three objectives were developed to accomplish this goal:
(1) develop a binational fisheries management plan, (2) establish channels of
communication between participating agencies, and (3) identify and address the
educational needs of all constituents. A working group was formed to develop the plan.
A site visit to observe the fish cooperatives on the Mexico side of Amistad Reservoir was
conducted by participants to learn monitoring protocols conducted by SAGARPA.

On February 6th and 7th, 2001, the working group met for the second time in Del
Rio, Texas, to continue in the formulation of a fisheries management plan. Presentations
by experts on fisheries issues were delivered; a draft outline of the plan was presented
and improved amongst participants, and fisheries plan writing assignments were given to
agency participants. A site visit to Amistad NRA visitor infrastructure was provided to
participants at the end of the meeting.

On May 23 and 24, 2001, a third meeting of the working group was held in Saltillo,
Mexico, to continue in the formulation of the fisheries plan and to conduct a site visit to
the Mexico Federal fish hatchery "La Rosa" where more than 9 million hatchlings are
raised of four species (carp, tilapia, bass and catfish). Attendees received a tour and
explanation of fish production activities. The meeting was spent completing initial draft
sections of the plan and agreeing formally on draft goals, objectives, and tasks for the
plan.

On November 27 and 28, 2001, a fourth meeting of the working group was held in
Ciudad Acufia, Mexico, to continue in the formulation of the fisheries plan. The meeting
was spent reviewing the draft document for corrections and finalizing plan formation.

Binational Fisheries Management Plan 8