How fisheries impact behavioural evolution in Atlantic cod

As seen in other animal species, fish individuals tend to react differently to a new situation. In the case of human harvest, the boldest individuals are more likely to get caught, leaving only the fearful and cautious ones ...

Agricultural contaminant impacts fish reproductive behaviour

A common growth-promoting hormone used worldwide in the cattle industry has been found to affect the sexual behaviours of fish at a very low concentration in waterways – with potentially serious ecological and evolutionary ...

Coorong fish hedge their bets for survival

Analysis of the ear bones of the River Murray estuarine fish black bream has revealed how these fish 'hedge their bets' for population survival.

Grey matter matters when it comes to feeling pain

Like humans, fish recoil from pain. But the fish pain reflex mechanism operates quite differently to the way it works in humans, University of Queensland research shows.

Heritable variation discovered in trout behaviour

Populations of endangered salmonids are supported by releasing large quantities of hatchery-reared fish, but the fisheries' catches have continued to decrease. Earlier research has shown that certain behavioural traits explain ...

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