Comparative account on zooplankton in polluted and unpolluted estuaries of Gujarat

Show simple item record Desai, B.N. Gajbhiye, S.N. JiyalalRam, M.J. Nair, V.R. 1995-05-11T10:00:56Z 2017-09-29T13:48:35Z 1995-05-11T10:00:56Z 2017-09-29T13:48:35Z 1983
dc.identifier.citation Mahasagar, vol.16(3); 1983; 281-291
dc.identifier.issn 0542-0938
dc.description.abstract An assessment of the zooplankton biomass and composition in Kolak Par, Damanganga and Auranga estuaries was made. Among these four rivers pollution is severe in the first two, moderate in Damanganga and good water quality prevailed in Auranga. The extent of variability in the distribution of zooplankton was in accordance with the intensity of pollution. In the unpolluted estuary zooplankton biomass varied from 1.8 to 10.06 ml/100 m@u3@@ and mean secondary production amounted to 80 mg C/100 m@u3@@/day. The intensely polluted estuaries are characterised by wide fluctuations in zooplankton biomass during the ebb and flood periods. The flood conditions sustained 1.8 to 4.4 times higher biomass than the ebb conditions. Mean rates of secondary production in these estuaries were 138 mg C/100 m@u3@@ /day (Par) and 265 mg C/100 m@u3@@ / day (Kolak). In the moderately polluted estuary the rate of secondary production was 109 mg C/100 m@u3@@ /day. Dominance of zooplankton groups varied with level of pollution in the unpolluted estuary invariably copepods were predominant. In the polluted estuaries during ebb tide gastropods, mysids and polychaetes formed the major part of the zooplankton. Diversity of different groups of zooplankton was relatively low in polluted estuaries
dc.language en
dc.publisher Indian Association for Limnology and Oceanography
dc.relation.ispartof Mahasagar
dc.relation.isreferencedby NON-SCI
dc.subject Aquatic Communities
dc.subject Aquatic Pollution
dc.subject.other zooplankton
dc.subject.other biomass
dc.subject.other check lists
dc.subject.other community composition
dc.subject.other dominant species
dc.subject.other brackishwater pollution
dc.subject.other comparative studies
dc.subject.other seasonal distribution
dc.subject.other seasonal variations
dc.subject.other ISW, India, Gujarat
dc.title Comparative account on zooplankton in polluted and unpolluted estuaries of Gujarat
dc.type Journal Article CSIR-National Institute of Oceanography, Bombay, Maharastra, India

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