Risk-taking behaviour in foraging perch: does predation pressure influence age-specific boldness?

@article{Magnhagen2008RisktakingBI,
  title={Risk-taking behaviour in foraging perch: does predation pressure influence age-specific boldness?},
  author={Carin Magnhagen and Jost Borcherding},
  journal={Animal Behaviour},
  year={2008},
  volume={75},
  pages={509-517}
}
In fish, predation risk is often size-specific due to gape limited piscivores and visibility constraints. We have investigated whether risk-taking behaviour in perch varies in accordance with size-specific predation risk in their natural habitat. In our two study lakes, the risk of cannibalism was estimated from fishing survey data. In Lake Fisksjön, the relative risk for juvenile perch was much higher than in Lake Ängersjön in the early stages, but after reaching a body length of approximately… CONTINUE READING

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