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.

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

A floodplain is a low-lying area directly adjacent to a waterbody and partially or fully flooded during high-water events.

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

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.

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

Riparian buffers are vegetated areas adjacent to an inland waterbody that are managed to protect the waterbody from the impacts of surrounding land uses.

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

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.

A stream, also known as a branch, creek, run, or brook, is a continuous surface flow of freshwater within a channel that is smaller than a river. Headwater streams can originate from groundwater (springs), runoff, or a wetland.