Excerpt from Use of Submerged Aquatic Vegetation Habitat Requirements as Targets for Water Quality in Maryland and Virginia Coastal Bays: Assateague Island National Seashore, Maryland and Virginia

Median values for light attenuation and for dissolved inorganic phosphorus in non-vegetated (nps long term) monitoring stations were not found to differ significantly from those of vegetated (sav) stations. Median values for dissolved inorganic nitrogen and for chlorophyll a were found to be slightly higher at non vegetated stations, but the differences were relatively small, so that there can be reasonable confidence that monitoring at non-vegetated stations represents conditions in sav beds for these parameters. Median values for total suspended solids were higher in vegetated stations, suggesting that the current water quality monitoring program may overestimate this parameter relative to that experienced by sav in the Coastal Bays.

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