LONG-TERM TREND IN THE MATURATION REACTION NORM OF TWO COD STOCKS
نویسندگان
چکیده
منابع مشابه
Long-term Trend in the Maturation Reaction Norm of Two Cod Stocks
Average age and size at maturation have decreased in many commercially exploited fish stocks during the last decades. This phenomenon could be either a direct phenotypic response to some environmental variation or the evolutionary consequence of some selective pressure. Traditionally used maturation indices, e.g., the age and size at which 50% of individuals are mature, are not appropriate to a...
متن کاملReaction Norms for Age and Size at Maturation: Study of the Long-Term Trend (1970-1998) for Georges Bank and Gulf of Maine Cod Stocks
Average age and size at maturation have decreased in many commercially exploited fish stocks during the last decades. This phenomenon could be either a direct phenotypic response to some environmental variation, or the evolutionary consequence of some selective pressure. Traditionally used maturation indices, i.e. the age and size at which 50% of individuals are mature, are not appropriate to a...
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Reaction Norms for Age and Size at Maturation: Study of the Long-term Trend (1970-1998) for Georges Bank and Gulf of Maine Cod Stocks. Ices Cm 2002/y:03
Average age and size at maturation have decreased in many commercially exploited fish stocks during the last few decades. This phenomenon could be either a direct phenotypic response to some environmental variation, or the evolutionary consequence of some selective pressure. Traditionally used maturation indices, i.e. the age and size at which 50% of individuals are mature, are not appropriate ...
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ژورنال
عنوان ژورنال: Ecological Applications
سال: 2004
ISSN: 1051-0761
DOI: 10.1890/03-5066