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Freshwater fishes distribution and diversity status of Mullameri River, a minor tributary of Bheema River of Gulbarga District, Karnataka

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Author(s): Vijaylaxmi C. | Rajshekhar M. | Vijaykumar K.

Journal: International Journal of Systems Biology
ISSN 0975-2900

Volume: 2;
Issue: 2;
Start page: 01;
Date: 2010;
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Keywords: Fish fauna | Biodiversity indices | Mullameri River | Gulbarga District | Karnataka

ABSTRACT
Freshwater fishes distribution and diversity status of Mullameri river, a minor tributary ofBheema River of Gulbarga district, Karnataka was studied from April 2006 to March 2008. During thestudy period fourteen freshwater fish species have been recorded. Monthly sampling was carried out inthree sites. The result of the study reveals the occurrence of fourteen fish species belonging to fiveorders. The order Cypriniformes was dominant with seven fish species followed by order Siluriformeswith four species, and the order Channiformes, Mastacembeliformes and Osteoglossiformes each withone species. The percent representation of different families of fishes is depicted in pia chart. Fishdiversity was assessed by calculating the various diversity indices such as Shannon – Weinerbiodiversity index (H), Simpson’s Dominance Index (D), Simpson’s index of diversity (1-D), PielousEvenness and Margalef index of species richness.
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