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The influence of visual pollution on navigation mechanisms in the damselfish (Chrysiptera cyanea)

Lunt, W. M.; Burt de Perera, T.; Newport, C.

2022-10-07 animal behavior and cognition
10.1101/2022.10.04.510829 bioRxiv
Show abstract

Here, we investigate whether visual pollution has an effect on navigation in coral reef damselfish (Chrysiptera cyanea). Turbidity had no significant influence on the individual fishs preference between egocentric and visual cues in a simple navigation task, with all individuals exhibiting a striking egocentric preference across all turbidity levels under testing. However, an alteration of cue preference may have occurred on a fine scale. Turbidity had profound effects on fish movement and decision-making behaviour, which has substantial implications for the behaviour of fishes on the ecological scale of a coral reef.

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