8121

• UCREFRP Catalog Number: 8121
• Author: Williamson, J. H. and R. S. Wydoski.
• Title: Genetics Management Guidelines.
• USFW Year: 1994.
• USFW - Doc Type: Denver, CO.
• Copyright Material: NO

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V.
VI.
VII.
TABLE OF CONTENTS (Continued)
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A. Stable Stocks . . . . . . . . . . . . . . . . . . . . 10
B. Declining Stocks . . . . . . . . . . . . . . . . . . . 13
C. Maintaining Genetic Diversity of Wild Endangered Fish
in Controlled Environments . . . . . . . . . . . . . . 14
D. Introgressive Hybridization . . . . . . . . . . . . . 15
Gen etics Management of Captive Stocks . . . . . . . . . . 16
A. Determining the Need for Captive Propagation and
Stocking . . . . . . . . . . . . . . . . . . . . . . . 16
B. Genetic Risks Associated with Artificial Propagation
and Stocking . . . . . . . . . . . . . . . . . . . . . 16
C. Guidelines for Stocking Captive-Reared Endangered Fish 17
0. Reasons for Maintaining Genetic Diversity in
Artificial Propagation Programs . . . . . . . . . . . 17
E. Choice of Founders for Broodstock Development . . . . 19
F. Estimating the Number of Fish Required to Develop
Broodstocks . . . . . . . . . . . . . . . . . . . . . 22
G. Important Considerations in Captive Propagation of
Endangered Fishes . . . . . . . . . . . . . . . . . . 22
H. Effective Population Size in Captive Propagation
of Endangered Fishes . . . . . . . . . . . . . . . . . 24
1. Ideal Number of Founders for Broodstock Development. . 26
J. Breeding Strategy for Captive Propagation when
Small Numbers of Endangered Fish are Available . . . . 27
Gui delines for Disposition of Captive-Reared Endangered
Fish . . . . . . . . . . . . . . . . . . . . . . . . . . 30
A. Background . . . . . . . . . . . . . . . . . . . . . . 30
B. Procedures for Disposition of Captive-Reared
Endangered Fish . . . . . . . . . . . . . . . . . . . 31
C. Euthanasia Protocol . . . . . . . . . . . . . . . . . 32
References . . . . . . . . . . . . . . . . . . . . . . . . 33
Appendix 1 - Glossary . . . . . . . . . . . . . . . . . . 38
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