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Submersed Aquatic Vegetation in the Tidal Potomac River and Estuary of Maryland, Virginia, and the District of Columbia 1982

Published: January 01, 1982

As part of a comprehensive interdisciplinary study of the tidal Potomac River and Estuary, the U.S. Geological Survey studied the distrivution and abundance of submersed aquatic vegetation from 1978 to 1981.  Sites were chosen throughout the tidal river and estuary.  The plant species were identified; distribution and abundance of submersed aquatic vegetation were determined at the sites; and volumes, biomass-volume equivalents, and representative stem lengths were measured.  Substrate types were identified, and particle size distribution, bottom nutrients, organic  carbon, and heavy metals were measured at numerous sites.  Water quality parameters that were measured included temerature, condutivity, salinity, secchi depth, photosynthetically active radiation, pH, chlorophyll a, nutrient concentrations, and epiphyte biomass.

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