Ontogenetic learning of predator recognition in hatchery-reared Atlantic salmon, Salmo salar

Publication year: 2008
Source: Animal Behaviour, Volume 75, Issue 5, May 2008, Pages 1663-1671</br>
Lorraine A., Hawkins , Anne E., Magurran , John D., Armstrong</br>
The goal of ‘life skills training’ is to improve survival of captive-reared animals after release to the wild. Our study tested the hypothesis that learned predator recognition in hatchery-reared fish is favoured at ecologically appropriate periods during ontogeny. We began by asking whether the innate response of Atlantic salmon to predator odour (from high- and low-risk predators) declines during hatchery rearing. Next, we used classical conditioning to assess the capacity of fish in different age groups to learn to recognize predator odour. The first experiment showed that innate predator recognition is retained by fish for at least 8 months in...</br>

11th August 2010 12:14

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