7890

• UCREFRP Catalog Number: 7890
• Author: U.S. Fish and Wildlife Service.
• Title: Region 6, Fish and Wildlife Service Guidelines Directing Captive Propagation Of Listed And Candidate Fish.
• USFW Year: 1996.
• USFW - Doc Type: \
• Copyright Material: NO

GUIDELINES ? TED OR O?pNpIUATE FISH IVE-REAR®
FEBRUARY 1, 1996
Dj? activities may produce more fish than are
A. neederound. Many propagation
needed to meet specified requirements unThis knowndortunpredictableiattrition
the hatchery manager to compensate fo
rates to ensure that specified requirements afesh?.t. These guidelines
provide the protocol for disposition of such Planned captive propagation minimizes thsr and c ilon of listed or
s demands on
candidate fish that will be excess to ne edThe number a fish that
resources (i.e., people, funds, and space).
are reared depends upon:
1. Captive propagation goals and objectives
2. Breeding strategy or mating system used
3. Fecundity of the fish culture
4. Anticipated mortality during
5. Method used to culture fish captive culture, and
6. Uncertainty of production during
7. Availability of culture facilities
repared well inc
Introduction and monitoring plans should
so pthat fish needs be
projected field laboratory studies
incorporated dvance
into planned production.
for thesstudies?ciForyexampleant
if large or mature fish are needed bull
trout, approximately 5 years are nee?edparetneededuto produce adult
bonytail and humpback chubs, Years
razorback suckers and Colorado squawfish, and 15 to 20 years for
pallid sturgeon.
All listed and candidate fish propagation willebe one i accordance
with the "Genetics Management Guidelines"
enetic diversity similar to
and general procedures for maintaining 9 ification of
wild stocks), "Genetics Management Plan" (i.e., classification
using
endangered fish species or stocks ae"Introduction Plan" (i.e.,
information on status and trends), and
specific details on species, specific stocks of fish, numbers of
fish, size[s], and time of stocking, etc.) and "ng an"
"Monitors, and
goals and objectives, pre-stocking, sampling p
reporting).
All wild fish used to develop bwildswhenspedigreedifamilyplotsiof
will be released back into the
their progeny have been established. They will be returned to the
original site where they were collected.
Candidate Fish.
B. Procedures for Dis osition of Ca tivr-d Listed or
Production targets are based on the numbers
• for specific restoration or recovery needs. Under normal operatingwith
procedures, unfit fish (e.g., genetically deformed, those
untreatable contagious diseases, etc.) will be euthanized following