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First sighting of a tropical benthic reef shark species at Rapa Nui: chance dispersal or a sign of things to come?

Morales, N, Coghlan, AR, Hayden, G and Guajardo, P 2019 , 'First sighting of a tropical benthic reef shark species at Rapa Nui: chance dispersal or a sign of things to come?' , Journal of Fish Biology, vol. 95, no. 2 , pp. 642-646 , doi: 10.1111/jfb.13977.

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Abstract

On 20 December 2017, a mature Triaenodon obesus was observed at Hanga Roa Bay, Rapa Nui (Easter Island) at c.18 m depth. This observation increases both the range of T. obesus in the Pacific Ocean and the number of elasmobranch species at Rapa Nui. In combination with other recent sightings further extending the southern range of this species during the Austral summer, sea surface temperature is suggested as key to southern dispersal.

Item Type: Article
Authors/Creators:Morales, N and Coghlan, AR and Hayden, G and Guajardo, P
Keywords: climate change, Easter Island, El Nino, Pacific Ocean, Triaenodon obesus, white tip reef shark
Journal or Publication Title: Journal of Fish Biology
Publisher: Blackwell Publishing Ltd
ISSN: 0022-1112
DOI / ID Number: 10.1111/jfb.13977
Copyright Information:

Copyright 2019 The Fisheries Society of the British Isles

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