Titlebook: Genetic Conservation of Salmonid Fishes; Joseph G. Cloud,Gary H. Thorgaard Book 1993 Springer Science+Business Media New York 1993 Adaptat

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The Norwegian Gene Bank Programme for Atlantic Salmon (,),d by extinction. Acid precipitation has been the main cause of salmon mortality in the southern part of the country and 25 stocks are now virtually extinct (Hesthagen and Hansen, 1991). The parasite . has caused extensive fish kills in 34 salmon rivers in the middle region of the country.

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Genetic Components in Life History Traits Contribute to Population Structure, (.) as well as among the individuals within each population. Numerous electrophoretic studies of allozyme variation document the existence of both inter- and intra- populational genetic variation in Pacific salmon (e.g., Gharrett et al., 1987; Gharrett et al., 1988; Beacham et al., 1988). Much of t

Limerick

Status and Plight of the Searun Cutthroat Trout,tthroat trout, the anadromous form of the coastal cutthroat trout, ., as being at some level of risk of extinction (Nehlsen et al., 1991). Here we focus on these at risk populations, listing reasons for their decline as set forth by the AFS Committee. We then review the life history, ecology, and ge

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Intruder

Status and Plight of the Searun Cutthroat Trout,us on these at risk populations, listing reasons for their decline as set forth by the AFS Committee. We then review the life history, ecology, and genetic population structure of the subspecies, and from this identify gaps in our knowledge that will have to be filled if these populations are to be preserved.

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Status of Genetic Conservation in Salmonid Populations from Asturian Rivers (North of Spain),89 in three rivers, Navia, Sella, and Cares-Deva, and the proportion of grilse (one-sea-winter salmon) increased in all rivers with the increases being significant in two rivers, Narcea and Cares-Deva (Garcia de Leániz and Martinez, 1988; Nicieza et al., 1990). . populations show signs of being disturbed.

Anthrp

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