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.

Cattano C., Fine M., Quattrocchi F., Holzman R., Milazzo M. (2019). Behavioural responses of fish groups exposed to a predatory threat under elevated CO2. MARINE ENVIRONMENTAL RESEARCH, 147, 179-184 [10.1016/j.marenvres.2019.04.011].

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

Cattano C.;Milazzo M.
Funding Acquisition
2019-01-01

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.
2019
Cattano C., Fine M., Quattrocchi F., Holzman R., Milazzo M. (2019). Behavioural responses of fish groups exposed to a predatory threat under elevated CO2. MARINE ENVIRONMENTAL RESEARCH, 147, 179-184 [10.1016/j.marenvres.2019.04.011].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/363411
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