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Implications of Size‐selective Fisheries on Sexual Selection by UusiâHeikkilä, Silva is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

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## Abstract Fisheries often combine high mortality with intensive size selectivity and can, thus, be expected to reduce body size and size variability in exploited populations. In many fish species, body size is a sexually selected trait and plays an important role in mate choice and mate competition. Large individuals are often preferred as mates due to the high fecundity and resources they can provide to developing offspring. Large fish are also successful in competition for mates. Fisheries‐induced reductions in size and size variability can potentially disrupt mating systems and lower average reproductive success by decreasing opportunities for sexual selection. By reducing population sizes, fisheries can also lead to an increased level of inbreeding. Some fish species avoid reproducing with kin, and a high level of relatedness in a population can further disrupt mating systems. Reduced body size and size variability can force fish to change their mate preferences or reduce their choosiness. If mate preference is genetically determined, the adaptive response to fisheries‐induced changes in size and size variability might not occur rapidly. However, much evidence exists for plas

Who reads Implications of Size‐selective Fisheries on Sexual Selection?

Author

UusiâHeikkilä, Silva

Publisher

Wiley (Blackwell Publishing); Blackwell Publishing Inc.; [Oxford]: Blackwell Publishing Ltd; Wiley (ISSN 1752-4563)

Published

2020

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)