Ocean acidification does not impair predator recognition but increases juvenile growth in a temperate wrasse off CO2seeps

Antonio Calò, Marco Milazzo, Carlo Cattano, Antonio Di Franco, Antonio Calò, Carlo Cattano, Federico Quattrocchi, Khalil Sdiri, Paolo Guidetti, Marco Milazzo

Risultato della ricerca: Articlepeer review

12 Citazioni (Scopus)

Abstract

Fish behavioural effects under Ocean Acidification (OA) rely on changes expected to occur in brain function, which can be reversed by gabazine, a GABA-A antagonist. Here, using standard two-channel choice flume, we assessed OA effects on the predator recognition ability of both gabazine-treated and -untreated Symphodus ocellatus post-settlers living off CO2seeps in the Mediterranean Sea. To estimate the post-settlers background predation risk we evaluated the density of their predator in the wild and through otolith aging techniques we assessed their post-settlement growth. Results showed that: 1) post-settlers predator recognition was unaffected under OA; 2) post-settlers living in elevated CO2were on average 15% bigger in size than those from ambient conditions. Our results support fish behavioural tolerance to OA, potentially mediated by pre-exposure to high-risk predation levels, and speculate that by increasing body size, juvenile fish might more efficiently avoid their predators.
Lingua originaleEnglish
pagine (da-a)33-40
Numero di pagine8
RivistaMarine Environmental Research
Volume132
Stato di pubblicazionePublished - 2017

All Science Journal Classification (ASJC) codes

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  • ???subjectarea.asjc.1100.1104???
  • ???subjectarea.asjc.2300.2310???

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