Phytoplankton Assemblages in the Elizabeth River, Virginia

ABSTRACT
Mean phytoplankton cell concentrations and cell volumes are given for four stations sampled during October and December in the Elizabeth River. <em>Skeletonema costatum</em> is a dominant species, with other diatoms, cryptomonads, and cyanobacteria (< 3 μm) forming the most characteristic and dominant assemblages. In comparison to studies made over 20 years ago, diatoms and cryptomonads have remained dominant, with an increased presence of smaller sized diatoms and phytoflagellates.