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Last modified
8/11/2009 11:32:57 AM
Creation date
8/10/2009 4:17:29 PM
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UCREFRP
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
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Disposition of Surplus Artificially Propagated Fish documents and identifies the methods <br />needed to reduce program excesses of fish/egg numbers and costs. Surplus fish should be <br />euthanized using an appropriate anesthetic such as tricaine methane sulfonate (MS-222). <br />Carcasses need to be disposed of in a legitimate and ecologically sound manner. Each <br />facility engaged in propagation of imperiled species must have a current approved fish <br />disposition plan for all species propagated at the facility. Surplus fish will nW be released <br />into the wild. Only wild fish released following capture and fish produced specifically for <br />approved stocking projects should be released. Endangered fish produced in excess of <br />program needs become the property and responsibility of the Service. Surplus fish, beyond <br />what is needed for broodstock or production, should be made available for research and <br />outreach for a limited amount of time after spawning; after this time has expired these excess <br />fish should be euthanized to reduce holding costs. <br />RESEARCH <br />Concurrent with the other activities addressed by Restoration and Recovery Plans, various <br />research projects may be initiated and completed. The Recovery Team retains the position of <br />making the final recommendation on research projects. Research and development are vital <br />to provide pertinent information for making intelligent program decisions regarding the <br />implementation of actions to restore and recover the species. Research is always done in a <br />phased, logical manner to answer specific questions, provide important information, or to <br />evaluate experimental efforts relative to implementation of specific strategies. <br />Pr • <br />opagation is particularly important in providing experimental fish for studies related to <br />identification of ecological requirements by life stage, interactions with non-native fishes, <br />homing (i.e. olfaction and chemoreception studies), habitat use, fish passage, taxonomy, <br />anatomy, and physiology. Other examples of needed research would be as follows: 1) <br />Nutritional, 2) Contaminants, 3) Rearing parameters, 4) Culture and spawning <br />techniques, 5) Genetic evaluations, 6) Endangered species sperm preservation <br />[cryopreservation], T) Stocking investigations, 8) Tagging, and 9) Disease identification <br />and control. <br />MUIRMAMN AND EDUCATION <br />Specimens are maintained in aquaria can be used in public relations programs and to educate <br />the public about the ecological requirements of the fish, reasons related to their status as <br />imperiled, efforts being taken to recover these native fishes and the relationship of recovery <br />efforts to development. Specimens can add substantially to environmental education <br />programs, and such educational experiences would be greatly enhanced if students could <br />actually see the fish when explanations for their decline are being discussed. The challenge <br />is to ensure that water can be managed and allocated to meet existing and new municipal, <br />industrial, and agricultural uses, while at the same time, providing stream flows, habitat, and <br />ecological conditions necessary to restore the endangered fishes (Wydoski and Hamill 1991). <br />•
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