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Beukeboom, Rosanne; Phillips, Joseph S.; Ólafsdóttir, Guðbjörg Ásta; Benhaïm, David
Ecology and evolution, April 2023, Letnik: 13, Številka: 4Journal Article
Animals show among‐individual variation in behaviors, including migration behaviors, which are often repeatable across time periods and contexts, commonly termed “personality.” These behaviors can be correlated, forming a behavioral syndrome. In this study, we assessed the repeatability and correlation of different behavioral traits, i.e., boldness, exploration, and sociality, and the link to feeding migration patterns in Atlantic cod juveniles. To do so, we collected repeated measurements within two short‐term (3 days) and two long‐term (2 months) intervals of these personality traits and genotypes of the Pan I locus, which is correlated with feeding migration patterns in this species. We found high repeatabilities for exploration behavior in the short‐ and long‐term intervals, and a trend for the relationship between exploration and the Pan I locus. Boldness and sociality were only repeatable in the second short‐term interval indicating a possible development of stability over time and did not show a relation with the Pan I locus. We found no indication of behavioral syndromes among the studied traits. We were unable to identify the existence of a migration syndrome for the frontal genotype, which is the reason that the link between personality and migration remains inconclusive, but we demonstrated a possible link between exploration and the Pan I genotype. This supports the need for further research that should focus on the effect of exploration tendency and other personality traits on cod movement, including the migratory (frontal) ecotype to develop management strategies based on behavioral units, rather than treating the population as a single homogeneous stock. By collecting repeated behavioral measurements of exploration, boldness, and sociality and the feeding migration‐linked Pan I genotype, we studied the link between personality and feeding migration in Atlantic cod juveniles. The results show that personality is apparent and that exploration shows a trend to be linked to the Pan I locus, which might have implications for fisheries management.
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in: SICRIS
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