Unexpected appetitive events promote positive affective state in juvenile European sea bass
M V Alvarado, A Felip, F Espigares, R F Oliveira · 2023
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Description
Alvarado and co-authors test whether pleasant surprises lift mood in young European sea bass. Captive animals often show body and behavior changes, which may reflect a negative emotional state. Judgement bias tests probe that state by seeing how an animal reads unclear cues, as optimists or pessimists would.
The team gave juvenile sea bass unexpected appetitive events, such as surprise food rewards. Fish that got the treats then judged ambiguous cues more positively, a sign of better mood. The result suggests small positive surprises can improve welfare in farmed fish. It also validates mood tests for aquatic species.
Catalog record
| CREATOR | M V Alvarado, A Felip, F Espigares, R F Oliveira |
|---|---|
| YEAR | 2023 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 51 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |