Social influence on the correlation between behaviours in young-of-the-year perch |
| |
Authors: | Carin Magnhagen |
| |
Institution: | 1.Department of Aquaculture,Swedish University of Agricultural Sciences,Ume?,Sweden |
| |
Abstract: | The connection between risk-taking behaviour and exploratory behaviour in young-of-the-year perch (Perca fluviatilis) was studied in aquarium experiments to see whether individual behaviour patterns could be identified in this species and
also to investigate how individual behaviour is influenced by their social environment. Risk-taking was defined as the time
spent foraging in an open area vs hiding in the vegetation in the presence of a piscivore. Explorative behaviour was measured
as latency to enter a passage leading to an unknown area. Groups of four fish were used for the observations, and both behaviours
measured were positively correlated with the mean scores of these behaviours in the other group members. Risk-taking and explorative
behaviours were correlated only when data was adjusted for the behaviour of the other group members. Individuals that spent
more time in the open than their companions also tended to be faster than the others to enter the passage to the unknown area
and vice versa. The results indicate that there are consistent individual differences in boldness in perch, but also that
behaviour could be modified according to the behaviour of group members. |
| |
Keywords: | Behavioural syndromes Boldness Exploratory behaviour Perca fluviatilis Social influence |
本文献已被 SpringerLink 等数据库收录! |