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Comparative toxicity of water soluble fractions of four oils on the growth of a Microalga

DRS at CSIR-National Institute of Oceanography

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Title Comparative toxicity of water soluble fractions of four oils on the growth of a Microalga
 
Creator Phatarpekar, P.V.
Ansari, Z.A.
 
Subject algal culture
phytoplankton
growth
oil
toxicity
Tetraselmis gracilis
 
Description Toxic effects of water soluble fractions (WSF) of four different fuel oils on a microalga. Tetraselmis gracilis, were examined and compared. On applying different concentrations of WSF, a decrease in cell population was observed. Depending on different physico-chemical properties, the hydrocarbons showed different inhibitory effects on the growth of Tetraselmis gracilis. Petrol was the most toxic and produced inhibitory effects even at low concentrations while HDD and crude oil inhibited growth at higher concentrations. Kerosene did not appreciably alter the growth either at lower or higher concentrations. The increase in toxicity was attributed to the presence of aromatic hydrocarbons of medium to higher molecular weight and their chemical modifications. The experimental data has shown that different oils have different potential for environmental damage, depending on the types and concentration of soluble and dispersed hydrocarbon present in the WSF
 
Date 2009-01-09T07:51:53Z
2009-01-09T07:51:53Z
2000
 
Type Journal Article
 
Identifier Botanica Marina, Vol.43; 367-375p.
http://drs.nio.org/drs/handle/2264/1634
 
Language en
 
Rights Copyright [2000]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
 
Publisher Walter de Gruyter, Berlin