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Phytoplankton Productivity In The Tidal Regions Of Four Chesapeake Bay (U.S.A.) Tributaries, Kneeland K. Nesius, Harold G. Marshall, Todd A. Egerton

Virginia Journal of Science

Monthly and annual phytoplankton productivity rates of four Virginia tidal rivers were determined based on a 12-year monitoring study that included sampling stations from tidal freshwater, oligohaline, and mesohaline regions in these rivers. The mean monthly rates and range at these locations were 5.52 (Dec.) to 175.12 (Aug.) mg C m^-3 h^-1 for tidal freshwater, 12.21 (Jan.) to 149.90 (May) mg C m^-3 h^-1 in oligohaline regions, and 16.20 (Jan.) to 151.33 (May) mg C m^-3 h^-1 for the mesohaline. The estimated mean annual 12 year productivity for the different Virginia river sites in …