Why age and size at maturity have changed in Pacific salmon
نویسندگان
چکیده
منابع مشابه
Quantifying six decades of fishery selection for size and age at maturity in sockeye salmon
Life history traits of wild animals can be strongly influenced, both phenotypically and evolutionarily, by hunting and fishing. However, few studies have quantified fishery selection over long time periods. We used 57 years of catch and escapement data to document the magnitude of and trends in gillnet selection on age and size at maturity of a commercially and biologically important sockeye sa...
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Wild and domesticated Atlantic salmon males display large variation for sea age at sexual maturation, which varies between 1-5 years. Previous studies have uncovered a genetic predisposition for age at maturity with moderate heritability, thus suggesting a polygenic or complex nature of this trait. The aim of this study was to identify associated genetic loci, genes and ultimately specific sequ...
متن کاملSex-dependent dominance at a single locus maintains variation in age at maturity in Atlantic salmon
1Centre for Integrative Genetics (CIGENE) and Department of Animal and Aquacultural Sciences, Norwegian University of Life Sciences, NO-1432 Ås, NORWAY 2Department of Biology, University of Turku, FI-20014, FINLAND 3Norwegian Institute for Nature Research (NINA), NO-7485 Trondheim, NORWAY 4Nofima AS, PO Box 210, NO-1431 Ås, NORWAY 5Natural Resources Institute Finland, Oulu FI90014, FINLAND 6Ins...
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Pacific salmon include several species that are both commercially important and endangered. Understanding the causes of loss in genetic variation is essential for designing better conservation strategies. Here we use a coalescent approach to analyze a model of the complex life history of salmon, and derive the coalescent effective population (CES). With the aid of Kronecker products and a conve...
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ژورنال
عنوان ژورنال: Marine Ecology Progress Series
سال: 2007
ISSN: 0171-8630,1616-1599
DOI: 10.3354/meps335289