Cabioch Guy, Wallace C. C., McCulloch M. T., Zibrowius H., Laboute P., Richer de Forges Bertrand. (2011). Disappearance of Acropora from the Marquesas (French Polynesia) during the last deglacial period. Coral Reefs, 30 (4), p. 1101-1105. ISSN 0722-4028.
Titre du document
Disappearance of Acropora from the Marquesas (French Polynesia) during the last deglacial period
Cabioch Guy, Wallace C. C., McCulloch M. T., Zibrowius H., Laboute P., Richer de Forges Bertrand
Source
Coral Reefs, 2011,
30 (4), p. 1101-1105 ISSN 0722-4028
The major reef-building coral genus Acropora has never been recorded, living or fossil, from the Marquesas Islands in the central Pacific Ocean, which are characterized by limited modern reef formations. During the "Musorstom 9" cruise in 1997, investigations of marine platforms representing drowned reef systems revealed for the first time the presence of two Acropora species as fossils at seven Marquesas islands. The predominant species was Acropora valida, which was widespread in the archipelago and dated between 7.4 and 48.6 ka, providing evidence of an earlier Pacific distribution pattern broader than previously observed. It is proposed that disappearance of Acropora after 7.4 ka was linked to climatic events probably ENSO events controlling the distribution of corals and coral reefs in the eastern Pacific without excluding alternatively the effects of an increase in sea-level rise.
Plan de classement
Sciences du milieu [021]
;
Ecologie, systèmes aquatiques [036]
