|Behavioural effects of ocean acidification in the tropical reef fish, Amphiprion ocellaris|
Van Malder, N. (2007). Behavioural effects of ocean acidification in the tropical reef fish, Amphiprion ocellaris. MSc Thesis. Universiteit Gent/Vrije Universiteit Brussel: Gent, Brussel. 24 + annexes pp.
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Rising concentrations of atmospheric carbon dioxide (CO2), lead to a rise of CO2 concentration in ocean water through a process called ocean acidification. In this study the effects of these higher concentrations were tested on behavioural changes, including coupling formation and olfactory sensing, in a tropical reef fish, Amphiprion ocellaris, for a period of 32 days. Behavioural changes in routine behaviour and boldness, were most apparent as CO2 concentrations increased. Coupling formation seemed to be impaired at a pH of 7.4, though not yet at a pH of 7.8 which is predicted to occur by 2100. No clear differences were found in olfactory sensing between different CO2 concentrations, giving no proof that ocean acidification might impair the olfactory mechanism.