The Phytoplankton of Liverpool Bay (1977-1978): 4. Geographic Distributions and Seasonal Variations

D. Voltolina, John Beardall, P Foster

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The spatial and temporal variability of the phytoplankton in Liverpool Bay observed over the seasonal production cycles of 1977 and 1978 are presented. Qualitative and quantitative differences in the populations, in both space and time, are shown to be predominantly dictated by three mutually dependent physical agencies; the various fresh water sources issuing into the area, the circulation and mixing patterns in the coastal waters and the development and persistence of an offshore front. The status of the nutrient reservoir which accumulates in the coastal waters over the winter is identified as the most important factor affecting the relative importance of siliceous and non-siliceous forms during the seasonal succession. Geographic distributions of particular species are also examined to illustrate the potential value of taxonomic observations in studies related to circulation and mixing problems in coastal waters.
Original languageEnglish
Pages (from-to)11-28
Number of pages18
JournalNova Hedwigia
Issue number1-2
Publication statusPublished - 1986
Externally publishedYes

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