Salt marshes are coastal wetlands. They are important habitat for numerous bird, fish, and invertebrate species providing both food and habitat. salt marshes can also help protect upland areas from erosion by buffering wave energy and storm surge.
Over the last 20 years, PSEG has tried to create more fish habitat within Thompson's Marsh by making natural tidal channels within the marsh. The American Littoral Society and Conserve Wildlife Foundation of New Jersey are building on this work to restore a further five acres. Over time, the creeks created by PSEG have filled in with mud. These creeks will be dredged to reopen these waterways, and the dredge material will be used to build up the subsiding marsh. This project is designed to restore the "natural mosaic" of the marsh.