The influence of natural cycles on coral reef fish movement: implications for underwater visual census (UVC) surveys
Identifieur interne : 004B99 ( Main/Exploration ); précédent : 004B98; suivant : 004C00The influence of natural cycles on coral reef fish movement: implications for underwater visual census (UVC) surveys
Auteurs : J. P. Bijoux [Seychelles] ; L. Dagorn [Seychelles] ; J.-C. Gaertner [France] ; P. D. Cowley [Afrique du Sud] ; J. Robinson [Seychelles, Australie]Source :
- Coral reefs : (Print) [ 0722-4028 ] ; 2013.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
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.
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P." last="Bijoux">J. P. Bijoux</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>UMR 212 EME, Institut de Recherche pour le Développement, Victoria</s1><s2>Mahé</s2><s3>SYC</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Seychelles</country><wicri:noRegion>Mahé</wicri:noRegion></affiliation></author><author><name sortKey="Dagorn, L" sort="Dagorn, L" uniqKey="Dagorn L" first="L." last="Dagorn">L. Dagorn</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>UMR 212 EME, Institut de Recherche pour le Développement, Victoria</s1><s2>Mahé</s2><s3>SYC</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Seychelles</country><wicri:noRegion>Mahé</wicri:noRegion></affiliation></author><author><name sortKey="Gaertner, J C" sort="Gaertner, J C" uniqKey="Gaertner J" first="J.-C." last="Gaertner">J.-C. 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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.</div></front></TEI><affiliations><list><country><li>Afrique du Sud</li><li>Australie</li><li>France</li><li>Seychelles</li></country></list><tree><country name="Seychelles"><noRegion><name sortKey="Bijoux, J P" sort="Bijoux, J P" uniqKey="Bijoux J" first="J. 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