9680

• UCREFRP Catalog Number: 9680
• Author: Mills, L.
• Title: Plan for the Propagation of Threatened and Endangered Fishes of the Upper Colorado River Basin - Draft.
• USFW Year: 1988.
• USFW - Doc Type: \
• Copyright Material: NO

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squawfish, humpback chub, bonytail chub, and razorback sucker, which will
ensure maintenance of genetic diversity.
Part One of this plan will address each species as a unique genetic resource,
provide for the characterization of each of those resources, identify genetic
risks associated with management of wild, introduced, and mixed populations,
address areas of uncertainty with respect to management and recovery, similar
to those identified by Riggs (1986) for salmon and steelhead planning,.
Part Two will address the management of hatchery broodstocks to ensure
maintenance of genetic integrity and diversity of hatchery stocks and their
progeny.
The broodstock plan should encompass broodstock management in context of need,
availability of fish, bottle-necking, inbreeding, genetic drift, maintenance of
population geneology, evaluation and tracking, use of wild gametes, spawning
procedures, and a control program to insure a genetic point of reference.
Task 1: Develop guidelines and parameters for the basin-wide genetic management
plan patterned after that developed by Riggs (1986) for steelhead and
salmon.
August 30, 1988
Task 2: Contract or hire the necessary genetics expertise to develop the