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Last modified
8/11/2009 11:32:58 AM
Creation date
8/10/2009 5:17:14 PM
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UCREFRP
UCREFRP Catalog Number
9720
Author
U.S. Fish and Wildlife Service.
Title
Razorback sucker (Xyrauchen texanus) genetics management and captive propagation plan, Dexter National Fish Hatchery and Technology Center.
USFW Year
2004.
USFW - Doc Type
Dexter National Fish Hatchery and Technology Center
Copyright Material
NO
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B. Task: Develop a comprehensive database to use in monitoring any changes <br />associated with hatchery practices. Annual statistical analysis of ongoing <br />monitoring activities will direct the research and management strategies needed to <br />minimize changes associated with captive propagation. <br />Target date: July 2005-July 2008 <br />C. Task: When spawning RBS to meet stocking commitments, a two female by <br />two male spawning will be prepared in four separate bowls, and only 10,000 fry <br />from each spawning bowl will be kept. Spawns will be placed in separate hatching <br />trays until swimup. <br />Target date: February 2004 <br />10) Identify locations, augmentation needs, and current broodstock production capabilities. <br />Management Action: Strategy for stocking commitments when more than 100,000 larval <br />fish are required. <br />A. Task: A minimum of 30 pairs of adult fish will be used when 100,000 fry are <br />needed. Stocking will take place in March. Target date: February 2004 <br />Management Action: Strategy for stocking commitments when more than 10,000 <br />fingerlings fish are required. <br />B. Task: minimum of ten pairs will be used in a two-by-two matrix. When small <br />numbers are needed, fewer eggs will be kept from each mating. Fish will be reared <br />from March until October, and stocked in October. <br />Target date: February 2004 <br />Management Action: Strategy for stocking commitments when more than 1,000 8"-12" <br />38
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