The Journal of the Elisha Mitchell Scientific Society
The seasonal abundance and successional patterns of phytoplankton, including autotrophic picoplankton, are compared to spring, summer, and fall primary production maxima that occurred in three tidal rivers. The tidal freshwaters were dominated by diatoms, chlorophytes, and cyanobacteria during a late spring through early fall period of maximum growth. In contrast, downstream assemblages were dominated by estuarine diatoms, dinoflagellates, and cryptomonads which developed spring pulses and a protracted summer-fall maximum. Autotrophic picoplankton produced a major summer pulse at all river stations with reduced abundance during other seasons. The mean annual productivity rates for the tidal James, Rappahannock, and York rivers were 409.6, 213.8, and 199.1 gC m-2 yr-1 respectively.
Original Publication Citation
Marshall, H.G., & Nesius, K.K. (1993). Seasonal relationships between phytoplankton composition, abundance, and primary productivity in three tidal rivers of the lower Chesapeake Bay. Journal of the Elisha Mitchell Scientific Society, 109(3), 141-151.
Marshall, Harold G. and Nesius, Kneeland K., "Seasonal Relationships Between Phytoplankton Composition, Abundance, and Primary Productivity in Three Tidal Rivers of the Lower Chesapeake Bay" (1993). Biological Sciences Faculty Publications. 96.