The quality of water in a marine protected area plays a major role in the health of that site's underwater ecosystems. MPAs near urban centers or agricultural lands can suffer from runoff of wastes, fertilizers, and other materials that degrade or otherwise alter natural systems. Floating garbage can accumulate in protected areas. Oil from drilling and transport carries the chronic problem of leakage and the threat of spills.
While the global MPA discussion often focuses on extractive activities and their management, threats to water quality can pose just as great a challenge for MPA practitioners. This month, MPA News examines the water quality-related challenges faced by four MPAs around the world, and how practitioners are handling them.