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Two fields with rows of cordgrass plantings, separated by a stone wall, on the shores of a river with a roadway crossing over it.

Coastal marshes, also frequently called salt marshes, are partially flooded wetlands that are inundated by salt water brought in by the tides but can vary in salinity levels.

Close-up of an orange-brown Elkhorn Coral in a shallow reef environment.

Coral reefs are the skeletons of marine invertebrates called coral, which form large underwater structures comprised of colonies.

A group of people is planting grasses on a coastal dune as part of a dune rehabilitation project.

Coastal dunes are large mounds of sand deposited on the landward side of a beach.

An oyster reef in Downe Township, New Jersey that serves as the first phase of the Hurricane Sandy-funded living shoreline installation for the Gandy’s Beach shoreline protection project (completed in October 2015).

Living shoreline creation refers to the process of planting vegetation along the shoreline and installing structures that help hold the vegetation in place.

Mangrove forest restoration by the Corps of Engineers’ South Atlantic Division, which oversees military and water-resources design, construction, and operation in the Southeast, the Caribbean, and Central and South America.

Mangrove ecosystems are a form of coastal wetlands found in tropical and subtropical regions. These systems support halophytic (salt-loving) trees, shrubs, and other plants, and are dominated by mangrove trees.

An oyster reef at Gandy’s Beach which is a part of a shell-based living shoreline one mile offshore (projected to reduce incoming wave energy by up to 40 percent).

Oysters are a cornerstone of coastal ecosystems and fisheries, providing structural protection to the coast as well as improving water quality.

Workshop participants contribute to fish passage project in Anchorage, Alaska by the U.S. Forest Service, U.S. Fish and Wildlife Service, and the Alaska Department of Fish and Game.

A riverine system is a watershed-scale network of integrated aquatic habitats and hydrological processes.

A scorpionfish is hidden in a seagrass meadow.

Seagrasses are flowering plants that grow entirely underwater and form dense meadows in shallow areas. Seagrass restoration refers to any activities that help return seagrass ecosystems to as close as possible to their state before anthropogenic disturbances.