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Abstract
Phytoplankton is the significant formal natural occupier of all water bodies. They play an important role in the biosynthesis of organic material. Being an index of trophic status phytoplankton reflects the overall environmental condition of the system and its potentiality. Present investigation was carried out for a period of twenty four month to study the diversity indices. Simpson’s Index of Dominance ranged from 0.0441 to 0.0952. Shannon-Wiener Diversity (H) index ranged from 2.6298 to 3.2112.273. Evenness Index ranged from 0.5593 to 0.9808 during the study period. Keywords: Diversity index, Evenness Index (J), Shannon and Weaver diversity index (H), Simpson’s Index of Dominance (D) and phytoplankton,
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References
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References
Ali, .M.., Salam, A. Iram, S., Zahra, B.T., and Qureshi. K. 2005. Studies on monthly variations in biological and physico-chemical parameters of brackish water fish pond, Muzaffar garh. Pakistan, Bahauddin Zakariya University
Allan, J.D. 1975. The Distributional Ecology and Diversity of Benthic Insects in Cement Creek, Colorado, Ecology, 56: 1040-1053
Balloch D., Davies C.E., Jones F.H. 1976. Biological assessment of water quality in three British rivers: the North Esk (Scotland), the Ivel (England) and the Taff (Wales), Water Pollut. Control, 75:92–114.
Dash, M.C., 2003. Fundamental of ecology 2nd edition Tata McGraw publishing company limited New Delhi.
Dügel, M. and Kazancı, N. 2004. Assessment of water quality Environment 1(9):196–200.
Turner, W.B. 1982. The Fresh Water Algae of East India. K. Svenska Vetensk. Akad. H and Le, 25(5): pp 187
Heister, R. D. 1972. The biotic index as a measure of organic pollution in streams. Am. Biol. Teacher. : 79-83
Ward, H.B. and Whipple, G.C. 1959. Fresh water biology. 2nd edition (Ed W/T. Edmondson L. John) Wiley and Sons, New York.
Watling K, Bottom G, Pembroke A, Maurer, D. 1979. Seasonal variations in Delaware Bay phytoplankton community structure. Mar. Biol.53: 207-215.