Effect of mining activities on the clam fisheries and bottom fauna of Goa estuaries

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dc.contributor.author Parulekar, A.H.
dc.contributor.author Ansari, Z.A.
dc.contributor.author Ingole, B.S.
dc.date.accessioned 1995-06-09T10:01:15Z
dc.date.accessioned 2017-09-29T13:48:18Z
dc.date.available 1995-06-09T10:01:15Z
dc.date.available 2017-09-29T13:48:18Z
dc.date.issued 1986
dc.identifier.citation Proceedings of the Indian Academy of Sciences (Animal Sciences), vol.95; 1986; 325-339
dc.identifier.uri http://drs.nio.org/drs/handle/2264/6188
dc.description.abstract Comparison of two clam beds and associated benthic fauna, in Mandovi and Cumbarjua canal estuarine system of Goa, India, severely affected by massive inputs of mining rejects, revealed that, in less than 10 years (1972-73 to 1982-83), high biotic variability induced by increasing environmental stress has caused irreversible ecosystem instability. Reduced dissolved oxygen concentration; high suspended solids and blanketing of bottom deposits by mining rejects, has resulted in more than 70% reduction in clam production; near extinction of resident fauna and the appearance of a low diversity bottom fauna, comprising of tolerant but vagrant species. Ever increasing entry of mining rejects, which has reduced the healthy and highly productive estuarine environment of 1972-73, into an impoverished biotope, in less than 10 years, unless prevented will result in the total extinction of estuarine life in the near future
dc.language en
dc.publisher Indian Academy of Sciences, Bangalore
dc.relation.ispartof P Indian As-Anim Sci
dc.relation.isreferencedby SCI
dc.subject Aquatic Pollution
dc.subject.other estuaries
dc.subject.other biomass
dc.subject.other species diversity
dc.subject.other environmental impact
dc.subject.other zoobenthos
dc.subject.other marine molluscs
dc.subject.other mining
dc.subject.other pollution effects
dc.subject.other ISW, India, Goa
dc.title Effect of mining activities on the clam fisheries and bottom fauna of Goa estuaries
dc.type Journal Article
dc.affiliation.author CSIR-National Institute of Oceanography, Dona Paula, Goa, India


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