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Journal of Fisheries and Aquatic Science
Year: 2008  |  Volume: 3  |  Issue: 1  |  Page No.: 12 - 21

Phytoplankton Composition and Community Structure of Ariyankuppam Estuary and Verampattinam Coast of Pondicherry

G. Ananthan, P. Sampathkumar, P. Soundarapandian and L. Kannan    

Abstract: Totally 156 species of marine phytoplankton were identified of which Diatoms formed the dominant group followed by Dinoflagellates, Blue Green and Greens. Phytoplankton population density and species diversity were high during the summer season and were invariably sparse during the monsoon season at both the stations. Species richness and evenness of phytoplankton showed an inverse relationship with the dominance index. Distribution of chlorophyll a concentration closely followed the phytoplankton population density and gross primary productivity. Species composition, population density, primary productivity and chlorophyll a concentration was more in the coast due to higher number of autochthonous coastal marine species in addition to allochthonous species from the estuary.

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