Behavioural responses of fish groups exposed to a predatory threat under elevated CO2

Carlo Cattano, Marco Milazzo, Carlo Cattano, Federico Quattrocchi, Holzman, Marco Milazzo, Maoz Fine

Risultato della ricerca: Article

1 Citazioni (Scopus)

Abstract

Most of the studies dealing with the effects of ocean acidification (OA) on fish behaviour tested individuals in isolation, even when the examined species live in shoals in the wild. Here we evaluated the effects of elevated CO2 concentrations (i.e. ∼900 μatm) on the shelter use and group cohesion of the gregarious damselfish Chromis viridis using groups of sub-adults exposed to a predatory threat. Results showed that, under predatory threat, fish reared at elevated CO2 concentrations displayed a risky behaviour (i.e. decreased shelter use), whereas their group cohesion was unaffected. Our findings add on increasing evidence to account for social dynamics in OA experiments, as living in groups may compensate for CO2-induced risky behaviour.
Lingua originaleEnglish
pagine (da-a)179-184
Numero di pagine6
RivistaMarine Environmental Research
Volume147
Stato di pubblicazionePublished - 2019

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All Science Journal Classification (ASJC) codes

  • Oceanography
  • Aquatic Science
  • Pollution

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