Simulation experiments using the inSTREAM individual‐based brown trout Salmo trutta population model explored the role of individual adaptive behaviour in food limitation, as an example of how behaviour can affect managers' understanding of conservation problems. The model includes many natural complexities in habitat (spatial and temporal variation in characteristics such as depth and velocity, temperature, hiding and feeding...

According to the adopted‐migrant hypothesis, first time spawning herring Clupea harengus learn their migration pattern from schooling with older individuals. Changes in migration pattern of Norwegian spring‐spawning herring co‐occur with the recruitment of abundant year classes to the spawning stock. It is argued that this is due to the abundant year classes being unable to learn from the older ones since most of the recruitin...