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Variation of Phytoplankton in a Tropical Estuary (Vellar Estuary, Bay of Bengal, India)
Author(s) -
Krishnamurthy K.,
Mani P.,
Krishnamurthy K.
Publication year - 1989
Publication title -
internationale revue der gesamten hydrobiologie und hydrographie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.524
H-Index - 52
eISSN - 1522-2632
pISSN - 0020-9309
DOI - 10.1002/iroh.19890740109
Subject(s) - estuary , bay , phytoplankton , dominance (genetics) , bengal , species evenness , species richness , oceanography , diversity index , ecology , geography , biology , environmental science , geology , nutrient , biochemistry , gene
The phytoplankton species composition and community structure were studied at two stations in the Vellar estuary from January to December, 1983. A total of 117 species of phytoplankton belonging to various groups, namely diatoms (90), dinoflagellates (21), Chlorophyceae (3), Cyanophyceae (2) and silicoflagellates (1) were observed during the study. The species diversity, richness and evenness values varied from 0.7 to 4.2 units/individual, 0.9 to 5.7 and 0.19 to 0.75 respectively. Dominance index values varied between 32.6 and 96.4 during the study period.