why is estuary an environmental filter
Estuaries are a type of environmental filter as plants and animals in estuaries filter pollutants out of the water. Particles in the water are either removed by chemical processes (aerobic respiration, sulfate reduction, methanogenesis) or by the feeding of estuarine animals and bacteria.ut more typically, an estuary is defined as a partially enclosed coastal body of water, having an open connection with the ocean (for example, via a river), where freshwater from inland is mixed with saltwater from the sea.