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Foraminifers as indicators of marine pollution: A culture experiment with Rosalina leei

DRS at CSIR-National Institute of Oceanography

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Title Foraminifers as indicators of marine pollution: A culture experiment with Rosalina leei
 
Creator Saraswat, R.
Kurtarkar, S.R.
Mazumder, A.
Nigam, R.
 
Subject marine pollution
pollution indicators
experimental culture
mercury
pollution effects
heavy metals
anthropogenic factors
benthic environment
Foraminifera
Rosalina leei
 
Description In order to develop a viable foraminiferal proxy for heavy metal pollutants, juvenile specimens of Rosalina leei were subjected to different mercury concentrations (0 -180 ng/l). Initially considerable growth was observed in specimens kept in saline water having a mercury concentration up to 100 ng/l. But with the gradual increase in concentration of mercury the growth rate started decreasing. Total growth achieved was significantly lower in case of specimens kept at relatively higher mercury concentrations then those maintained in normal saline water. The most significant result of this experiment was the addition of abnormal chambers in the specimens kept at higher mercury concentration. Later the specimens kept at highest concentration (180 ng/l) were subjected to progressively increasing concentration of mercury to see the further effects and it was found that the specimens were still living at as high a mercury concentration as 260 ng/l although there was no growth.
 
Date 2008-07-02T07:10:37Z
2008-07-02T07:10:37Z
2004
 
Type Journal Article
 
Identifier Marine pollution bulletin, Vol.48; 91-96p.
http://drs.nio.org/drs/handle/2264/1166
 
Language en
 
Rights Copyright [2004]. It is tried to respect the rights of the copyright holders to the best of the knowledge. If it is brought to our notice that the rights are violated then the item would be withdrawn.
 
Publisher Elsevier