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Genetic Variation of Fecundity
and Egg Size in Anadromous Pink Salmon Oncorhynchus gorbuscha Walbau
Authors: W.W. Smoker, A.J. Gharrett, M.S. Stekoll, and S.G.
Taylor |
| Families of pink salmon were created by mating
of 60 male pink salmon to 120 females from an odd year population. The
offspring were tagged and released, then recaptured 16 months later when
they returned to spawn. The results showed that heritability of number
of eggs was 0.8, and egg size did not differ between components. The authors
conclude that variations in fitness-related traits can be maintained from
generation to generation in fluctuating environments by genetic variation,
and are important to the adaptability and persistence of populations.
Thus managers should strive to conserve diversity. For full text see http://www.state.ak.us/adfg/geninfo/pubs/afrb/vol7/smokerv7.pdf.
Alaska Fishery Research Bulletin 7:44-50.
Alaska Sea Grant Publications | Search Alaska Sea Grant The URL for this page is http://seagrant.uaf.edu/bookstore/pubs/RP-01-01.html | |
