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Quantification of toxic effects of the organochlorine insecticide endosulfan on marine green algae, diatom and dinoflagellate

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Title Quantification of toxic effects of the organochlorine insecticide endosulfan on marine green algae, diatom and dinoflagellate
 
Creator Ebenezer, Vinitha
Ki, Jang-Seu
 
Subject POPs
Insecticide
Endosulfan
Marine microalgae
Ecotoxicity assessment
EC50
 
Description 393-399
Organ chlorine insecticide endosulfan (ES) is
one of the persistent organic pollutants (POPs) and it may pose a serious
threat to microalgae. Here, we evaluate the toxic effects of ES on three marine
microalgae, including
the diatom Ditylum brightwellii, dinoflagellate Prorocentrum minimum and green algae Tetraselmis suecica. The
endpoints used for toxicity assessment were changes in cell counts and
chlorophyll a levels. Median
effective concentration (EC50) was calculated after 72 h-ES
exposures and the values for D.
brightwellii, P. minimum, and T. suecica were determined to be 0.0013, 0.025, and 0.045 mg L-1, respectively.
These results indicate that our marine microalgae were very sensitive to the ES
exposure even under environmentally realistic concentrations. Particularly, the
diatom D. brightwellii was most
sensitive to ES, when compared to data available on freshwater microalgae.
 
Date 2014-03-06T06:58:48Z
2014-03-06T06:58:48Z
2014-03
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/27329
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.43(3) [March 2014]