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http://krishi.icar.gov.in/jspui/handle/123456789/4942| Title: | Evaluation of acute toxicity levels and ethological responses under heavy metal cadmium exposure in freshwater teleost, Channa punctata (Bloch) |
| Other Titles: | Not Available |
| Authors: | Mohit Tiwari N.S. Nagpure D.N. Saksena Ravindra Kumar S.P. Singh B. Kushwaha W.S. Lakra |
| Published/ Complete Date: | 2011 |
| Project Code: | Not Available |
| Keywords: | Acute toxicity Behavioural changes Cadmium LC50 |
| Publisher: | ditor in Chief: Alireza Asem Institute of Evolution & Marine Biodiversity, Ocean University of China, China |
| Citation: | 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. |
| Series/Report no.: | Not Available; |
| Abstract/Description: | 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. |
| Description: | Not Available |
| ISSN: | 2008-8019 |
| Type(s) of content: | Research Paper |
| Sponsors: | University Grants Commission, New Delhi, India |
| Language: | English |
| Name of Journal: | International Journal of Aquatic Science |
| Volume No.: | 2(1) |
| Page Number: | 36-47 |
| Name of the Division/Regional Station: | Not Available |
| Source, DOI or any other URL: | Not Available |
| URI: | http://krishi.icar.gov.in/jspui/handle/123456789/4942 |
| Appears in Collections: | FS-NBFGR-Publication |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Tiwariet al (2011).pdf | 313 kB | Adobe PDF | View/Open |
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