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Authors
Affiliations
1 Energy and Wetlands Research Group, Centre for Ecological Sciences, Indian Institute of Science, Bangalore 560 012, IN
2 Department of Marine Biology, Karnataka University, Kodibag, Karwar 581 301, IN
Source
Current Science, Vol 106, No 12 (2014), Pagination: 1739-1744
Abstract
Fish diversity (77 species) in the Aghanashini River estuary of the Indian west coast is linked to variable salinity conditions and zones I, II and III for high, medium and low salinity respectively. Zone I, the junction between Arabian Sea and the estuary, had all species in yearly succession - due to freshwater conditions in monsoon to high salinity in pre-monsoon. The medium (zone II) and low (zone III) salinity mid and upstream portions had maximum of 67 and 39 fish species respectively. Maintenance of natural salinity regimes in estuary, among other ecological factors, is critical for its fish diversity.
Keywords
Aghanashini Estuary, Fish Diversity, Freshwater, Osmo Regulation, Salinity.
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