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FUNCTIONAL TYPES OF PHYTOPLANKTON IN JIAOZHOU BAY USING DIAGNOSTIC PIGMENT ANALYSIS (DPA)
Author(s): 
Pages: 866-876
Year: Issue:  4
Journal: Oceanologia et Limnologia Sinica

Keyword:  phytoplanktonfunctional typesdiagnostic pigmenthigh-performance liquid chromatography(HPLC)Jiaozhou Bay;
Abstract: Phytoplankton pigment composition(chlorophylls and carotenoids)was analyzed to determine the distribution of pigments and plankton in 18 stations over 7 cruises during Dec.2003 to Oct.2004 in Jiaozhou Bay,China.Four phytoplankton functional types(PFTs),i.e.diatoms,dinoflagellates,nanoflagellates,and caynobacteria were defined using characteristic pigments as diagnostic pigment indices(characteristic properties)of particular PFTs.The spatial-temporal distribution of each PFTs in Jiaozhou Bay was analyzed based on the proportion of each diagnostic pigment in the diagnostic pigment pool.The results showed that the dominated PFTs in the bay were diatoms(65.8% in average),followed by flagellates(26.0% in average),and dinoflagellates and cyanobacteria(6.3% and 1.9%,respectively).Analysis on PFTs based on diagnostic pigment indices provides a simple and easy way to identify the composition and abundance of dominated phytoplankton groups.
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