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Last modified
7/14/2009 5:02:34 PM
Creation date
5/18/2009 12:28:51 AM
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UCREFRP
UCREFRP Catalog Number
9328
Author
Miller, W. H.
Title
Analysis of Salmon and Steelhead Supplementation.
USFW Year
1990.
USFW - Doc Type
\
Copyright Material
NO
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One ,concern that was apparent among virtually all groups contacted was the issue of <br />inter-basin transfers of salmonid stocks. Although most people were- aware of the <br />biological implications, some felt that inter-basin transfers were necessary to attain their <br />goals. Others expressed a need to end all inter-basin transfers of all life stages. <br />Although CDFG has a formal policy against inter-basin transfer of stocks, this <br />supplementation review indicated that the practice is common and widespread. The <br />CDFG has transferred stocks for restoration purposes to establish and maintain runs., <br />Some private programs have received both endemic and non-endemic eggs from CDFG, <br />particularly in waters with depressed or extirpated stocks. <br />The state's intent has been to supplement and expand dwindling or geographically extinct <br />wild stocks. However, a formally organized statewide active program to increase wild <br />stocks (through supplementation) was not apparent from the state personnel interviewed. <br />Maintaining high production levels is the driving force within the hatchery management <br />system. Many personnel from all sectors expressed concern about the proper levels <br />(density) of stocking. Additionally, various measures to promote the survival and return <br />of hatchery stocks (such as trucking juveniles downstream) have been successful. <br />However, there is little done to aid natural production. <br />Although private projects are also motivated to maximizing their production, they have <br />not deviated from their grass-roots objectives of rebuilding local remnant stocks. The <br />private projects are limited by economics; the materials, personnel, technology, and <br />funding necessary to define the capability and nature of these projects. California's <br />private sector ,has the potential to increase present levels of supplementation with <br />additional funding. <br />Guidelines among public agencies and private groups on the biologically appropriate <br />levels of production and supplementation are lacking. This problem needs to be <br />addressed to promote an organized and scientifically sound approach to rebuilding <br />salmonid stocks. <br />Alaska <br />Background <br />Alaska has two entities doing enhancement of salmon and steelhead, private non-profit <br />(PNP) hatcheries and the Alaska Department of Fish and Game, Fisheries <br />Rehabilitation Enhancement and Development (FRED) Division hatcheries. PNP <br />hatchery programs provide a structure for fishermen to be involved with the commercial <br />fisheries programs. The PNP hatcheries are supported- by Regional Aquaculture <br />Associations and produce fish ,for commercial harvest. There are seven regional <br />aquaculture associations in Alaska. The PNP rear pink, chum, coho, Chinook and <br />sockeye salmon at their hatcheries. In 1988, PNP hatcheries took more than 1 billion <br />21 <br />
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