Aquatic Life Water creatures living in the salt marsh must be able to survive the changing of the tides, the varying amount of salt from the ocean's water and the freezing and the thawing of the marsh. Fish and shellfish spawn here. There are many species of crustaceans, fish and mollusks which inhabit the marsh. Birds Birds use the marsh as their nesting place. They feed on other marsh creatures and plant life.
Some birds use the marsh as their resting place when flying south for the winter.