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<title lang=en>Mass-settlement of the Indian ocean black-tip grouper Epinephelus oceanicus (Lacepède, 1802) in a shallow volcanic habitat following a tropical storm</title>
<creator>Pinault, Mathieu</creator>
<creator>Quod, Jean-Pascal</creator>
<creator>Galzin, René</creator>
<contributor>Laboratoire d'Ecologie Marine (ECOMAR) ; Université de la Réunion (UR) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Centre de recherches insulaires et observatoire de l'environnement (CRIOBE) ; Université de Perpignan Via Domitia (UPVD) - École pratique des hautes études (EPHE) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Biologie et écologie tropicale et méditerranéenne (BETM) ; Université de Perpignan Via Domitia (UPVD) - École pratique des hautes études (EPHE) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Agence pour la Recherche et la Valorisation Marines - ARVAM (Ste Clotilde, La réunion-France) ; Agence pour la Recherche et la Valorisation Marines - ARVAM (Ste Clotilde, La réunion-France)</contributor>
<contributor>Laboratoire d'Excellence CORAIL (LabEX CORAIL) ; Institut de Recherche pour le Développement (IRD) - Université des Antilles et de la Guyane (UAG) - École des hautes études en sciences sociales (EHESS) - École pratique des hautes études (EPHE) - Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) - Université de la Réunion (UR) - Université de la Polynésie Française (UPF) - Université de Nouvelle Calédonie - Institut d'écologie et environnement</contributor>
<description>International audience</description>
<source>Environmental Biology of Fishes</source>
<identifier>hal-01306707</identifier>
<identifier>http://hal.univ-reunion.fr/hal-01306707</identifier>
<identifier>http://hal.univ-reunion.fr/hal-01306707/document</identifier>
<identifier>http://hal.univ-reunion.fr/hal-01306707/file/Mass-settlement%20of%20the%20Indian%20ocean%20black-tip%20grouper_hal.pdf</identifier>
<source>http://hal.univ-reunion.fr/hal-01306707</source>
<source>Environmental Biology of Fishes, 2015, 98 (2), pp.705--711. 〈10.1007/s10641-014-0303-2〉</source>
<identifier>DOI : 10.1007/s10641-014-0303-2</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1007/s10641-014-0303-2</relation>
<language>en</language>
<subject>[SDE.BE] Environmental Sciences/Biodiversity and Ecology</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>The active selection of recent volcanic habitats by juvenile fish following a cyclone could explain the unusual mass-settlement of the Indian Ocean blacktip grouper Epinephelus oceanicus observed on 25 May 2006, few weeks after tropical storm Diwa on the latest lava flows of the Piton de la Fournaise volcano at Reunion Island. Following a cyclonic depression, shallow underwater habitats are devoid of resident fishes, including predators, favouring juvenile fish survival. Otherwise, the recent origin of the volcanic habitats, which vary in age, could facilitate the spatial segregation of adult and juvenile fish on the lava flows, reducing intraspecific competition and adult aggression toward juveniles. Regional characteristics of larval recruitment could also contribute to the infrequency of the described event; the isolated situation of the island would be expected to result in an average density of fish postlarvae 0.25 % to 1 % of that seen on some reefs in the Pacific. The supposed origin of juvenile groupers in the neighbouring island of Mauritius should encourage Reunionese managers to look beyond their own jurisdictions to adopt a collaborative approach to conservation of the entire connected network.</description>
<date>2015-02</date>
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