Acid Reefs

Projet: ACID REEFS : Ocean acidification - the other problem of coral reefs

Coordinatrice: Dr L Hédouin

Période: 2018-2020

Zone d’Étude: Moorea, Polynésie française

Résumé : Maintaining marine biodiversity is a major challenge for France, particularly in its overseas territories where coral reefs are home to more than a third of the world's marine biodiversity. In addition to its crucial ecological interest, the ecosystemic value of coral reefs for humans is estimated at ~ 27 billion euros / year.

Unfortunately, the consequences of climate change (e.g. ocean acidification) are real threats to marine biodiversity. While the oceans help to detoxify our atmosphere by absorbing about one third of the CO2 emissions related to anthropogenic activities, ocean acidification causes a disruption of the water chemistry causing adverse effects on the process of biomineralization of organisms building the reefs as well as their inhabitants.

While the effect of ocean acidification on individual species has been studied in the past, its impact on the reefs as a whole and the biodiversity they harbor remains poorly understood. Thus, the overall objective of ACID REEFS is to better understand the response of coral reefs to ocean acidification through an integrated approach ranging from the organism to the community, from the larvae to the adult, from observation to the mechanistic understanding as well as from the results to ecological and socio-economic predictions.

ACID REEFS emerges from the Center for Island Research and Environment Observatory (CRIOBE), member of the laboratory of excellence "CORAIL”, located both in Moorea (French Polynesia) and Perpignan (France). Moorea is an exceptional site to study the complexity of coral ecosystems used in this innovative, integrative and interdisciplinary project. In addition to an experimental in situ ecology field station developed by the CRIOBE, ACID REEFS benefits from an experimental room reconstructing the coral reef ecosystem designed specifically for this project.

Collaborateurs:

ACID REEFS is led by Dr. Laetitia Hédouin and brings together a consortium of scientists from innovative and complementary disciplines from seven laboratories / research centers in six countries: CRIOBE - French Polynesia, IAEA - Monaco, CSM - Monaco, Rhode Island University - United States, University of Queensland - Australia, ZMT - Germany, University Gothenburg - Sweden.

Communication and outreach: Non-profit organization Kahi Kai (France, Hawaii, French Polynesia - www.kahikai.org).

Source de Financement: Fondation de France / FRB - Fondation pour la Recherche sur la Biodiversité.