Experimental size-selective harvesting affects behavioral types of a social fish
Sbragaglia, V., Alós, J., Fromm, K., Monk, C. T., Díaz-Gil, C., Uusi-Heikkilä, S., Honsey, A. E., Wilson, A. D., & Arlinghaus, R. (2019). Experimental size-selective harvesting affects behavioral types of a social fish. Transactions of the American Fisheries Society, 148(3), 552-568. https://doi.org/10.1002/tafs.10160
Published inTransactions of the American Fisheries Society
© 2019 American Fisheries Society
In most fisheries, larger fish experience substantially higher mortality than smaller fish. Body length, life-history and behavioral traits often correlate, such that fisheries-induced changes in size or life-history can also alter behavioural traits. However, empirical evidence regarding how size-selective harvesting alters the evolution of behavioural traits in exploited stocks is scarce. We used experimental lines of zebrafish (Danio rerio) that were exposed to positive, negative or random size-selective harvest over five generations. Our aim was to investigate whether simulated fishing changed the mean personality of the surviving females five generations after initial harvesting halted. We found that mean boldness, activity, and sociability were significantly altered relative to a randomly harvested control line. Harvestinduced changes in individual-level personality were only detected in the negatively sizeselected line. By contrast, we did not detect harvest-induced evolution of personality in the positively size-selected line. We conclude that size-selective harvesting alters individual fish personality in a social fish. ...
PublisherJohn Wiley & Sons Ltd.
Publication in research information system
MetadataShow full item record
Showing items with similar title or keywords.
Size-selective harvesting fosters adaptations in mating behavior and reproductive allocation, affecting sexual selection in fish Sbragaglia, Valerio; Gliese, Catalina; Bierbach, David; Honsey, Andrew E.; Uusi-Heikkilä, Silva; Arlinghaus, Robert (Wiley-Blackwell Publishing Ltd., 2019)The role of sexual selection in the context of harvest‐induced evolution is poorly understood. However, elevated and trait‐selective harvesting of wild populations may change sexually selected traits, which in turn can ...
Uusi-Heikkilä, Silva (Wiley-Blackwell, 2020)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 ...
Multiple-batch spawning : a risk-spreading strategy disarmed by highly intensive size-selective fishing rate Hočevar, Sara; Hutchings, Jeffrey A.; Kuparinen, Anna (The Royal Society, 2022)Can the advantage of risk-managing life-history strategies become a disadvantage under human-induced evolution? Organisms have adapted to the variability and uncertainty of environmental conditions with a vast diversity ...
Feeding Aquatic Ecosystems : Whole-Lake Experimental Addition of Angler’s Ground Bait Strongly Affects Omnivorous Fish Despite Low Contribution to Lake Carbon Budget Mehner, Thomas; Rapp, Tobias; Monk, Christopher T.; Beck, Mara E.; Trudeau, Ashley; Kiljunen, Mikko; Hilt, Sabine; Arlinghaus, Robert (Springer New York LLC, 2019)It is well documented that aquatic ecosystems may be subsidized by naturally derived terrestrial carbon sources. In contrast, the intentional or unintentional subsidy of animal populations by human-derived feed resources ...
Avila, Piret (University of Jyväskylä, 2017)Biological altruism, deﬁned as a behaviour that beneﬁts others at an apparent cost to the focal individual, is found abundantly across diﬀerent levels of biological organization. While kin selection has been useful for ...