A Queens newspaper reported that the NYC Dept. of Environmental Protection is using oysters to remove nitrogen from the polluted Jamaica Bay.
Jamaica Bay is composed of 31 square miles of marshland and open water. Apparently, 70 percent of it has been overtaken by nitrogen pollution, and will completely disappear by the end of the decade without intervention.
The DEP is also introducing 1,000 eelgrass plants, which shelter marine life in addition to reducing nitrogen.