Estuary Subbasin Overview

Estuaries normally provide an important transition environment between marine and freshwater environments. They generally provide an abundant and rich food supply and relative isolation from several marine and freshwater predators. Sediment deposition is naturally high in estuaries due to their position at the mouth of rivers and typical low gradient and often restricted outlets. Therefore, excessive erosion rates in a watershed produce negative effects in its estuary.

Mattole River - Estuary Subbasin