8123

• UCREFRP Catalog Number: 8123
• Author: Wydoski, R. S.
• Title: Coordinated Hatchery Facility Plan
• USFW Year: 1994.
• USFW - Doc Type: Need for Captive-Reared Endangered Fish and Propagation Facilities.
• Copyright Material: NO

Box 1. Philosophy, mission and goals of the Recovery Implementation
Program for genetics management of endangered fishes in the
Upper Colorado River Basin.
PHILOSOPHY AND MISSION
To maintain the genetic integrity of wild and captive-reared endangered
fishes in the Upper Colorado River Basin to prevent irreversible losses
of genetic diversity that may result from management interventions or
lack of action.
GENETICS MANAGEMENT GOALS
1. To prevent immediate extinction of any endangered Colorado River
fish stocks.
2. To conserve genetic diversity of wild endangered fish stocks
through recovery efforts that will protect or restore viable wild
stocks by removing or significantly reducing limiting factors that
caused population declines.
3. To maintain genetic diversity in captive-reared endangered fish
broodstocks that is similar to the wild stock used as founders.
B. Genetic Conservation Documents. Genetic conservation management of the
endangered fishes in the Upper Colorado River Basin will be accomplished
in three phases that are described in separate documents:
Genetics Management Guidelines. The guidelines provide the conceptual
framework of genetics management and rationale that will be employed to
maintain genetic diversity of endangered fish stocks in the Upper
Colorado River Basin. The guidelines (1) provide criteria for
identification and characterization of endangered fish stocks and.for
determining the status and trends of those stocks, (2) provide protocol
for conserving the genetic variability in wild endangered fish stocks,
(3) state the need for captive-reared endangered fish, (4) identify
genetic risks associated with captive propagation, (5) provide breeding
strategies for captive propagation, (6) provide guidance in the choice of
founders for broodstock development, (7) describe methods to estimate the
number of fish required to produce broodstocks, and (8) discuss ways to
maximize the effective population size in captive stocks.
Genetics Management Plan. The Genetics Management Plan provides the
basis for (1) classifying endangered fish stocks in the upper basin,
(2) providing rationale for decisions related to genetics management of
specific stocks based on status and trends, and (3) establishing
priorities for effective and rational genetics management for species
and stocks.
Stocking Plans. Stocking Plans provide the justification and rationale
for specific actions regarding the stocking of captive-reared endangered
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