Photo tow: a new method for estimating coral reef status and changes at large spatial scale. A coral bleaching event case study

Refering to a coral bleaching event that took place in French Polynesia in 2002, and in order to document the health of the coral reef outer slope at a scale of several tens of kilometers of coastline, we developed a new method on the island of Moorea. This method consists of monitoring the reef at...

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Dades bibliogràfiques
Publicat a:URI:https://journals.openedition.org/jso,
Autors principals: Chancerelle, Yannick, Maurin, Robert, Poujade, Sébastien, Vieux, Caroline
Format: Article ou chapitre numérique
Idioma:Français
Publicat: Journal de la société des océanistes 2011
Matèries:
Accés en línia:Accès Université d'Orléans et IFPM
Accès Université d'Orléans et IFPM
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Sumari:Refering to a coral bleaching event that took place in French Polynesia in 2002, and in order to document the health of the coral reef outer slope at a scale of several tens of kilometers of coastline, we developed a new method on the island of Moorea. This method consists of monitoring the reef at constant depth by towing, behind a boat, a scuba diver operating a photographic camera. This method enables precise and fast scanning of the reef at regular intervals along a great distance. In the case of the study presented here, geographical differences were found around the island: healthy coral cover was greater on the north coast, and bleaching intensity was greatest on the north-west coast.