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The relative sensitivity of benthonic foraminifera in the polluted marine environment of Cola Bay, Goa

DRS at CSIR-National Institute of Oceanography

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Title The relative sensitivity of benthonic foraminifera in the polluted marine environment of Cola Bay, Goa
 
Creator Setty, M.G.A.P.
 
Subject Aquatic Pollution
Aquatic Communities
Aquatic Communities
Plankton
Zooplankton
Benthos
Marine Pollution
Foraminifera
ISW, India, Goa
 
Description The foraminiferal gradient in the bay indicates high foraminiferal productivity with large sized, mostly megalospheric, robust, many-chambered @iAmmonia@@, with @iElphidium@@ sp., @iFlorilus boenum, F. scaphus@@ followed by miliolids in the littoral zone, and smaller sized @iNonionella@@ sp., @iFursenkoina pontoni, Bulimina marginata@@ and @iBrizalina striatula@@ and others being dominant in the distal zones. This property of certain species restricting themselves to the least affected zone is suggestive of their response to the effect of effluents and thus being absent near the outfall area. The total foraminiferal number (TFN) and the total species number (TSN) represent the abundance and the index of diversity besides spatial heterogenuity. The organic carbon content in the sediment is inversely proportional to the abundance of the benthonic populations. Living foraminifera are very useful in establishing zones of effects of pollutants in a region. Correlation coefficient between TFN and TSN on the one hand and between TFN with the nature of the substrate in relation to the radial distance from the mouth of the discharge point on the other, appears to be very erratic. The relative sensitivity of the benthonics nearer the outfall area is more positive than could have been expected otherwise
 
Date 1995-01-01T09:56:50Z
2017-09-29T13:47:06Z
1995-01-01T09:56:50Z
2017-09-29T13:47:06Z
1976
 
Type Conference Article
 
Identifier Proceedings of the Sixth Indian Colloquium on Micropalaeontology and Stratigraphy.; 1976; 225-234
http://drs.nio.org/drs/handle/2264/5539
 
Language en
 
Relation 6th Indian Colloquium on Micropalaeontology and Stratigraphy; 1972
NON-SCI