Seasonal patterns of growth and composition of phytoplankton in the lower Chesapeake Bay and vicinity |
| |
| Institution: | 1. University of Warsaw, Faculty of Geology, Warsaw, Poland;2. Cardinal Stefan Wyszyński University, Institute of Archaeology, Warsaw, Poland;3. Adam Mickiewicz University, Department of Biogeography and Paleoecology, Poznań, Poland;4. Tanta University, Faculty of Science, Tanta, Egypt;5. East China Normal University, State Key Laboratory of Estuarine and Coastal Research, Shanghai 200062, China;6. John Paul 2nd State Higher School, Faculty of Economic and Technical Sciences, Biała Podlaska, Poland;7. Kafrelsheikh University, Faculty of Science, Kafrelsheikh, Egypt |
| |
| Abstract: | A twenty-three month study of lower Chesapeake Bay phytoplankton was made from February 1982 to December 1983. The major seasonal growth periods were dominated by a diatomaceous flora and a pico-nanoplankton complex composed mainly of cyanobacteria, chlorophytes and other cells <5μm in size. There was a pattern of multiple pulses throughout the year. However, the trend for maximum development occurred during the winter-spring and fall periods. The dominant diatoms were Skeletonema costatum, Leptocylindrus danicus, and Asterionella glacialis.Seasonal comparisons were made to earlier phytoplankton composition studies in the Bay. Over the past 60 years there has been a change in phytoplankton assemblages and concentrations in the Bay. Skeletonema costatum has remained a dominant species, but a more abundant and broader base of small sized, chainforming diatoms have become established. In addition, high concentrations of the pico-nanoplankton, chrysophyceans and cryptophyceans were abundant. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
