Clean sediments are important because they contain air pockets that aquatic life depend upon to exist. These spaces provide habitat for aquatic organisms to lay their eggs and contributes oxygen that is essential for their survival. Flood and Shoreline Erosion Control Wetlands function like big sponges, slowing down and absorbing excess water during storms. This combined action of slowing and storing water reduces flooding downstream and shoreline erosion. Food and Habitat for Fish and Wildlife Fish.
Wetlands serve three major functions for fish communities.
They provide breeding grounds, act as sources of food and provide cover from predators. Most species of freshwater fish are dependent on wetlands for one or more of these functions. Many varieties of waterfowl and non-game birds depend on wetlands for feeding and resting areas during their spring and fall migration. Resident birds rely on them for nesting and as primary feeding areas. Other wildlife, such as the mink, muskrat and beavers, rely on wetlands.