Estuary

Science / Marine Biology / Estuary: A semienclosed body of water that has a free connection with the open sea and within which seawater is diluted measurably with freshwater that is derived from land drainage

Vertically Homogeneous Estuary

Science / Marine Biology / Vertically Homogeneous Estuary: An estuary in which, at any given location, wind or tidal mixing homogenizes salinity throughout the water column MORE

Seasonal Estuary

Science / Marine Biology / Seasonal Estuary: An estuary in which salinity at any one geographic point changes seasonally (e.g., decreases during the spring melt) MORE

Daily Estuary

Science / Marine Biology / Daily Estuary: An estuary in which tidal movements cause substantial changes in salinity at any one location on a daily basis MORE

Moderately Stratified Estuary

Science / Marine Biology / Moderately Stratified Estuary: An estuary in which seaward flow of surface low-salinity water and moderate vertical mixing result in a modest vertical salinity gradient MORE

Highly Stratified Estuary

Science / Marine Biology / Highly Stratified Estuary: An estuary having a distinct surface layer of fresh or very-low-salinity water, capping a deeper layer of higher salinity, more oceanic water MORE

National Estuary Program

Business / Agriculture / National Estuary Program: A program established under the Clean Water Act Amendments of 1987 to develop and implement conservation and management plans for protecting estuaries and restoring and maintaining their chemical, phy MORE

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