What conservation problems?
Increasing evidence demonstrates that global change is already affecting terrestrial and marine ecosystems. In the marine realm, the main disturbances linked to global change are overfishing, pollution, mechanical habitat destruction, invasive species and, more recently, global warming. Coastal marine habitats are a focus of attention as they harbour high biological diversity, are among the most productive systems in the world, and present high levels of anthropogenic interaction. Biodiversity loss in coastal marine ecosystems is increasingly impairing the ocean’s capacity to provide ecosystem services such as food supply, maintain water quality and recreational benefits.