7741

• UCREFRP Catalog Number: 7741
• Author: Burdick, B. D.
• Title: A Plan to Evaluate Stocking to Augment or Restore Razorback Sucker in the Upper Colorado River - Final.
• USFW Year: 1992.
• USFW - Doc Type: \
• Copyright Material: NO

Ultimately, this study will provide 1) information on the role of
stocking in the recovery of razorback sucker, and 2) essential biological
information not currently available on this species. The razorback sucker
stocking plan for the upper Colorado River will be developed and implemented
within the framework of the Propagation/Genetics Management Plan and the
ongoing imprinting and chemoreception studies currently coordinated by the
U. S. Fish and Wildlife Service Colorado River Fishery Project office in
Vernal, Utah. These studies will 1) evaluate the roles of imprinting,
learning, and genetic control on the reproductive ecology of razorback sucker,
2) determine the mechanism by which adult fish locate suitable spawning areas,
and 3) assess the role of olfaction in habitat selection. Understanding
genetic control and olfactory response to imprinted odors should increase our
chances of successfully augmenting existing populations, or reestablishing
populations in historic stream reaches.
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