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ISSN: 2161-0525

Journal of Environmental & Analytical Toxicology
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Research Article

Zooplankton Composition and Community Structure of Kottakudi and Nari Backwaters, South East of Tamil Nadu

K. Thirunavukkarasu1, P. Soundarapandian2*, D. Varadharajan2 and B. Gunalan2
1Department of Advanced Zoology and Animal Biotechnology, Sree Sevugan Annamalai College, Devakottai, Tamil Nadu, India
2Faculty of Marine Sciences, Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai-608 502, Tamil Nadu, India
Corresponding Author : Soundarapandian P
Faculty of Marine Sciences
Centre of Advanced Study in Marine Biology
Annamalai University
Parangipettai-608 502, Tamil Nadu, India
Tel: 04144-243223
Fax: 04144-243553
E-mail: [email protected]
Received November 26, 2013; Accepted December 16, 2013; Published December 18, 2013
Citation: Thirunavukkarasu K, Soundarapandian P, Varadharajan D, Gunalan B (2013) Zooplankton Composition and Community Structure of Kottakudi and Nari Backwaters, South East of Tamil Nadu. J Environ Anal Toxicol 4:200. doi: 10.4172/2161-0525.1000200
Copyright: © 2013 Thirunavukkarasu K, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Zooplankton plays an important role to study the faunal bio-diversity of aquatic ecosystems. It is occurrence and distribution influences the fishery potentials. The fishes mostly breed in areas where the planktonic organisms are plenty so that their young ones could get sufficient food for survival and growth. The zooplankton composition during the study period includes the members of Foraminifera, Rotatoria, Calanoida, Cyclopoida, Harpacticoidea, Doliolida, Appendicularia, Decapoda, Sagittoida, Amphipoda, Coelentrata, Pteropoda, Cladocera and larval forms. In station I, about 88 species of zooplankton were recorded. In station II, about 92 species of zooplankton were recorded. The zooplankton population densities were ranged from 23,150 to 80,890 org/l in station I and 23,197 to 80,691org/l in station II. The Shannon - Wiener's diversity index (H') values were ranged from 4,505 bits/ind. to 5,915 in station I and 4,590 bits/ind. to 5,928bits/ind. in station II. The Simpson richness was ranged from 0.662 to 0.995 in station I and 0.665 to 0.998 in station II. The Pielou’s evenness (J') was ranged from 0.590 to 0.952 in station I and 0.513to 0.952 in station II respectively.

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