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dc.creatorPérez-Matus,Alejandro
dc.creatorRamirez,Fabián
dc.creatorEddy,Tyler D
dc.creatorCole,Russell
dc.date2014-10-01
dc.date.accessioned2019-05-03T13:27:38Z
dc.date.available2019-05-03T13:27:38Z
dc.identifierhttps://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0718-560X2014000400009
dc.identifier.urihttp://revistaschilenas.uchile.cl/handle/2250/88019
dc.descriptionThe Juan Fernández Archipelago (33°37'S, 78°51'W), an isolated group of islands 650 km west of continental Chile, has a high degree of endemism in its marine biota. Despite numerous scientific expeditions to these islands that have identified this high endemism, few studies have attempted to identify patterns of community structure in subtidal habitats. Using visual census, we surveyed fish and habitat associations at five sites located at two of the three islands of the archipelago. Given the isolation of the archipelago we asked: What is the composition of the reef fish fauna at these isolated islands? What habitats dominate subtidal environments? What influences the abundances of reef fishes? Our analysis confirms that fish communities at the archipielago are dominated by endemic species. The ichthyofauna is comprised of a mixture of subtropical and temperate taxa, with greater similarity to western than eastern South Pacific fauna. We identified different fish assemblages at wave-exposed and wave-sheltered sites. Brown and red macroalgae were correlated with the abundances of some reef fishes. Four broad trophic categories of reef fishes were present at the archipelago, with invertebrate consumers dominating abundance. To our knowledge, this is the first attempt to quantify patterns of community structure in subtidal environments at the Juan Fernández Archipelago.
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dc.languageen
dc.publisherPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
dc.relation10.3856/vol42-issue4-fulltext-9
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourceLatin american journal of aquatic research v.42 n.4 2014
dc.subjectrocky reefs
dc.subjectfish assemblages
dc.subjectdistribution
dc.subjectoceanic islands
dc.subjectJuan Fernández Archipelago
dc.subjectChile
dc.titleSubtidal reef fish and macrobenthic community structure at the temperate Juan Fernández Archipelago, Chile


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