Does boldness explain vulnerability to angling in Eurasian perch Perca fluviatilis ?

Current Zoology
Anssi VainikkaPekka Hyvärinen

Abstract

Consistent individual differences (CIDs) in behavior are of interest to both basic and applied research, because any selection acting on them could induce evolution of animal behavior. It has been suggested that CIDs in the behavior of fish might explain individual differences in vulnerability to fishing. If so, fishing could impose selection on fish behavior. In this study, we assessed boldness-indicating behaviors of Eurasian perch Perca fluviatilis using individually conducted experiments measuring the time taken to explore a novel arena containing predator (burbot, Lota lota) cues. We studied if individual differences in boldness would explain vulnerability of individually tagged perch to experimental angling in outdoor ponds, or if fishing would impose selection on boldness-indicating behavior. Perch expressed repeatable individual differences in boldness-indicating behavior but the individual boldness-score (the first principal component) obtained using principal component analysis combining all the measured behavioral responses did not explain vulnerability to experimental angling. Instead, large body size appeared as the only statistically significant predictor of capture probability. Our results suggest that angling is...Continue Reading

References

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Citations

Mar 3, 2017·Evolutionary Applications·Beatriz Diaz Pauli, Andrew Sih
Jul 21, 2017·The Journal of Experimental Biology·Michael J LouisonCory D Suski
Aug 26, 2019·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Toniann D Keiling, Cory D Suski
Mar 27, 2021·Ecology and Evolution·Jenni M ProkkolaAnssi Vainikka
Dec 4, 2021·Biological Reviews of the Cambridge Philosophical Society·Elène Haave-AudetKimberley J Mathot

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Software Mentioned

- Statistics
AV Bio - Statistics
AV Bio
SPSS
Perch
R

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