AP BIOLOGY

Detailed explanation-1: -Estuaries are coastal areas where the saline waters of the ocean meet with fresh water from streams and rivers. Estuarine habitats are usually very productive because of the accumulation of nutrients from fresh water runoff. Estuaries offer good fishing grounds for the fisherman as the water column is shallow.

Detailed explanation-2: -Estuaries filter out sediments and pollutants from rivers and streams before they flow into the ocean, providing cleaner waters for humans and marine life.

Detailed explanation-3: -Fish, shellfish, and migratory birds are just a few of the animals that can live in an estuary. The Chesapeake Bay, as one example, includes several different habitats. There are oyster reefs where oysters, mud crabs, and small fish may be found.

Detailed explanation-4: -Estuary Ecosystems Many plant and animal species thrive in estuaries. The calm waters provide a safe area for small fish, shellfish, migrating birds and shore animals. The waters are rich in nutrients such as plankton and bacteria. Decomposing plant matter, called detritus, provides food for many species.