The influence of natural cycles on coral reef fish movement: implications for underwater visual census (UVC) surveys

Bijoux, J.P., Dagorn, L., Gaertner, J.-C., Cowley, P.D., and Robinson, J. (2013) The influence of natural cycles on coral reef fish movement: implications for underwater visual census (UVC) surveys. Coral Reefs, 32 (4). pp. 1135-1140.

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Abstract

Movement patterns of some coral reef fishes change with natural cycles (e.g., tidal, lunar and seasonal), resulting in short-term shifts in fish assemblages. We reviewed the literature on temporal changes in coral reef fish assemblages derived from underwater visual census (UVC) and found that movement was rarely considered in experimental design and analysis or as cause of change in interpretation of the results. Studies of vagile species, large individuals, species forming transient spawning aggregations and studies of fishes in contiguous habitats are most likely to be affected by such movements. Ignoring predictable patterns of movement associated with such natural cycles in survey design and analysis increases “unexplained” variation, making it more difficult to detect longer-term changes in fish assemblages and reducing the effectiveness of UVC as a monitoring tool.

Item ID: 33527
Item Type: Article (Research - C1)
ISSN: 1432-0975
Keywords: fish movement, temporal change, coral reef fishes, short-term natural cycles, underwater visual census
Funders: Institut de Recherche pour le Développement
Projects and Grants: IRD-DSF grant
Date Deposited: 03 Jun 2014 23:52
FoR Codes: 06 BIOLOGICAL SCIENCES > 0602 Ecology > 060205 Marine and Estuarine Ecology (incl Marine Ichthyology) @ 100%
SEO Codes: 96 ENVIRONMENT > 9608 Flora, Fauna and Biodiversity > 960808 Marine Flora, Fauna and Biodiversity @ 100%
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