Ten years of varying lake level and selection on size-at-maturity in sockeye salmon.

@article{Carlson2007TenYO,
  title={Ten years of varying lake level and selection on size-at-maturity in sockeye salmon.},
  author={Stephanie M. Carlson and Thomas P Quinn},
  journal={Ecology},
  year={2007},
  volume={88 10},
  pages={
          2620-9
        }
}
Despite the ubiquity of studies quantifying the strength and form of selection in nature, rarely is the ecological context for contemporary selection understood. Here we report a case where lake level is a selective factor acting on sockeye salmon body size-at-maturity because low lake levels cause large salmon to strand and die rather than reach the breeding grounds. As a result of a semelparous life history, death for salmon at this stage results in a lifetime fitness of zero. We combined… CONTINUE READING

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