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Evaluation of acute toxicity levels and ethological responses under heavy metal cadmium exposure in freshwater teleost, Channa punctata (Bloch)

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Title Evaluation of acute toxicity levels and ethological responses under heavy metal cadmium exposure in freshwater teleost, Channa punctata (Bloch)
Not Available
 
Creator Mohit Tiwari
N.S. Nagpure
D.N. Saksena
Ravindra Kumar
S.P. Singh
B. Kushwaha
W.S. Lakra
 
Subject Acute toxicity
Behavioural changes
Cadmium
LC50
 
Description Not Available
The present study was undertaken to investigate the acute toxicity of cadmium, a heavy metal widely detected in the aquatic environment due to natural effects and anthropogenic activities, in freshwater teleost, Channa punctata (Bloch). The experiments for the bioassay were performed in semi-static test condition according to the standard guidelines. The behavioural changes in the fish were observed for all tested concentrations of the metal. The data obtained for bioassay were analyzed for median lethal concentrations (LC50) of the metal by SPSS computer software, Finneyʼs Probit analysis and Trimmed Spearman-Karberʼs method. The LC50 values, estimated by SPSS, with 95% confidence level were found to be: 26.88 (21.69-71.68), 18.76 (17.13-20.81), 16.70 (14.77-17.96) and 14.95 (13.13-15.88) mg l-1 for dissolved metal concentrations, at 24, 48, 72 and 96 h exposure durations respectively. All three methods showed good agreement among the estimates. Furthermore, the exposed specimens showed dose and duration dependent abnormal behaviour and hyperactivity.
University Grants Commission, New Delhi, India
 
Date 2017-07-24T06:47:03Z
2017-07-24T06:47:03Z
2011
 
Type Research Paper
 
Identifier Tiwari, M., et al. "Evaluation of acute toxicity levels and ethological responses under heavy metal cadmium exposure in freshwater teleost, Channa punctata (Bloch)." International Journal of Aquatic Science 2.1 (2011): 36-47.
2008-8019
http://krishi.icar.gov.in/jspui/handle/123456789/4942
 
Language English
 
Relation Not Available;
 
Publisher ditor in Chief: Alireza Asem Institute of Evolution & Marine Biodiversity, Ocean University of China, China