Relative importance of habitat and fishing in influencing reef fish communities across seventeen Pacific Island Countries and Territories

Show simple item record Pinca, S en Kronen, M en Magron, F en McArdle, Brian en Vigliola, L en Kulbicki, M en Andréfouet, S en 2012-04-02T01:53:58Z en 2011 en
dc.identifier.citation Fish and Fisheries 2011 en
dc.identifier.issn 1467-2960 en
dc.identifier.uri en
dc.description.abstract Reef fish assessments were undertaken in 17 Pacific islands to describe the status of finfish resources in 63 villages where fishing is mainly artisanal. Surveys were performed by recording the number and size of edible fish species and benthic composition. Fishing impact was described through six proxies representing level of catch, alternative incomes, degree of commercial catch and country economic development derived from a simultaneous socioeconomic assessment. The relative importance of broadly defined habitat (geographical location, island and reef type, substrate composition) and fishing impact in controlling the distribution of fish trophic groups, families and species was measured through multivariate analysis. The extreme faunistic diversity was shown by the large variation in fish density (difference of up to an order of magnitude) and fish biomass (displaying a 20-fold difference across the region). Herbivores were dominant in the eastern part of the region, at what we classified as complex islands and at islands with small lagoon and at coastal reefs, while carnivores were dominant at oceanic islands and atolls and at outer reefs. Specific habitat associations were shown for Scaridae, Acanthuridae, Siganidae, Balistidae, Lethrinidae, Lutjanidae and Serranidae. Relative importance and size decrease of several fish families (Mullidae, Scaridae, Lutjanidae and Serranidae) were related to high fishing impact. Acanthuridae and Lethrinidae appeared to have a role as opportunistic groups in impacted sites. The relative impact from fishing and habitat on fishes accounted for, respectively, 20 and 30% of variance, demonstrating the effect of human impacts even at such large scale and taking into account only limited fishing impact variables. en
dc.publisher Blackwell Publishing en
dc.relation.ispartofseries Fish and Fisheries en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from en
dc.rights.uri en
dc.title Relative importance of habitat and fishing in influencing reef fish communities across seventeen Pacific Island Countries and Territories en
dc.type Journal Article en
dc.identifier.doi 10.1111/j.1467-2979.2011.00425.x en
dc.rights.holder Copyright: Blackwell Publishing en
dc.rights.accessrights en
pubs.subtype Article en
pubs.elements-id 215153 en
dc.identifier.eissn 1467-2979 en
pubs.record-created-at-source-date 2012-03-28 en

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