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Arsenic, copper, zinc and manganese in the marine flora and fauna of coastal and estuarine waters around Goa

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Title Arsenic, copper, zinc and manganese in the marine flora and fauna of coastal and estuarine waters around Goa
 
Creator Zingde, M. D.
Singbal, S. Y. S.
Moraes, (Miss) C. F.
Reddy, V. G.
 
Description 212-217
Arsenic, copper, zinc and manganese are analysed in 24 species including seaweeds, fishes, crustaceans and molluscs. Among seaweeds, sargassum tenerimum and Padina retrastromatica are more efficient in accumulating metals. Levels of arsenic in fishes are low, and the values on the higher side for Mugil parsia and Etroplus suratensis are attributed to their feeding habits. Among the crustaceans highest levels (25 ppm) are observed in crabs, while prawns, mussels and bivalves have intermediate levels. Highest copper and zinc concentrations are exhibited by oysters and the concentration of the latter decreases from 2800 to 715 ppm from south to north of Goa. Oysters show little preference for arsenic and manganese. Levels of arsenic, copper, zinc and manganese in the coastal waters of Goa have also been investigated. The abnormally high levels of dissolved manganese in water (45.2 µg/litre) are attributed to the ore bearing land mass and the mining operations. High levels of manganese in water is not reflected in the accumulation of this element by marine organisms. Seaweeds however exhibit high concentrations of manganese.
 
Date 2017-01-02T08:43:22Z
2017-01-02T08:43:22Z
1976-12
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://nopr.niscair.res.in/handle/123456789/39486
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.05(2) [December 1976]