Biodiversity and present status of freshwater fishes in Lohit river basin of India

M. L. Kansal () and Shilpy Arora ()
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M. L. Kansal: Indian Institute of Technology Roorkee
Shilpy Arora: KLDAV PG College

Environment Systems and Decisions, 2012, vol. 32, issue 1, 58-69

Abstract: Abstract Lohit is a major tributary of the river Brahmaputra in India and is famous for its rich and diverse fish fauna. The river has a difficult terrain, but has high hydropower potential. A large number of storage-based hydropower plants are envisaged on this river in the near-future. This study aims at presenting the existing diverse fish fauna in Lohit river basin. A total of 74 fish species are identified in this river basin and can be classified into seven orders, 20 families, and 52 genera. Further, it has been highlighted that there are seven species which have been categorized as endangered, 12 species are categorized to be vulnerable, three species have been categorized as data-deficient, and the remaining species are in the least concern category. It is expected that the construction of proposed storage-based power plants in this basin will affect the flow and storage characteristics, as well as the temperature of the water, which, in turn, will affect the rich fish fauna. This study emphasizes the need for preparing a comprehensive plan for the adoption of appropriate in situ conservation measures, as well as an awareness program, so as to save the rich and diverse fish fauna of Lohit river basin.

Keywords: Lohit river; Fish diversity; Hydropower development; Migration pattern; Threatened status (search for similar items in EconPapers)
Date: 2012
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DOI: 10.1007/s10669-011-9372-3

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