High CO2 and marine animal behaviour: potential mechanisms and ecological consequences

Briffa, Mark, de la Haye, Kate, and Munday, Philip L. (2012) High CO2 and marine animal behaviour: potential mechanisms and ecological consequences. Marine Pollution Bulletin, 64 (8). pp. 1519-1528.

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Abstract

Exposure to pollution and environmental change can alter the behaviour of aquatic animals and here we review recent evidence that exposure to elevated CO₂ and reduced sea water pH alters the behaviour of tropical reef fish and hermit crabs. Three main routes through which behaviour might be altered are discussed; elevated metabolic load, 'info-disruption' and avoidance behaviour away from polluted locations. There is clear experimental evidence that exposure to high CO₂ disrupts the ability to find settlement sites and shelters, the ability to detect predators and the ability to detect prey and food. In marine vertebrates and marine crustaceans behavioural change appears to occur via info-disruption. In hermit crabs and other crustaceans impairment of performance capacities might also play a role. We discuss the implications for such behavioural changes in terms of potential impacts at the levels of population health and ecosystem services, and consider future directions for research.

Item ID: 24670
Item Type: Article (Research - C1)
ISSN: 0025-326X
Keywords: CCS, ocean acidification, behaviour, hermit crab, clownfish, coral reef
Date Deposited: 23 Jan 2013 06:04
FoR Codes: 06 BIOLOGICAL SCIENCES > 0602 Ecology > 060205 Marine and Estuarine Ecology (incl Marine Ichthyology) @ 100%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970106 Expanding Knowledge in the Biological Sciences @ 100%
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