Coral ecosystems of the Indo-Pacific

• Field sites
• Spatial structure of coral ecosystems
• Natural and anthropogenic disturbances
• Management tools
• Towards the sustainable development of coral reef ecosystems

ecosystemes

Coral reefs, one of the oldest living ecosystems known, are the object of growing interest on the part of the international community aware of the necessity to protect and valorize their biodiversity. Present in 54 countries of the Indo-Pacific, coral ecosystems are subject to the pressures of coastal populations numbering more than 200 million people. Although four developed countries present large reef zones (Australia, Japan, USA, France),  most of the countries concerned are among the poorest in the world. Coral reefs have undergone a world-wide decline which has been worsening over the last few decades, principally due to global warming and human activities. Associated ecosystems are moreover subject to the impact of multiple uses linked to the exploitation of marine resources and the development of coastal zones. The expected increase of these disturbances in the decades to come, both in frequency and in intensity, brings into question the future of coral reefs. Thus their survival seems a condition of our ability to implement ambitious management policies based on a better understanding of the global dynamics of ecosystems and on the development of efforts towards integrated ecology. For decades, the research conducted by IRD has been situated principally in the Indo-Pacific within the context of national and international programs. This research concerns the functioning and sustainable exploitation of coral ecosystems, whether such exploitation be of an alimentative, patrimonial or economic nature, and the conservation of biodiversity. The objectives of current research are as follows:
- to describe the spacial structure of coral ecosystems on different scales  and study its consequences on the diversity of biological communities and on their exploitation;
- to analyze the influence of natural and anthropogenic  disturbances on the structuration of biological communities (life cycles, functional biodiversity) and their uses; 
- to propose management tools.

consommation de poissons
consommation de poissons