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Studies on lethal concentrations and toxicity stress of some xenobiotics on aquatic organisms.
Chemosphere. 2004 Apr; 55(2):257-65.C

Abstract

Three widely used xenobiotics pentachlorophenol (PCP), 2,4-dichlorophenoxyacetic acid (2,4-D) and 2-chloro-2,6-diethyl-N-(butoxymethyl) acetanilide (Butachlor) are evaluated for acute toxicity and stress behavior on freshwater fish (Heteropneustes fossilis, Clarias batrachus, Channa punctatus) and mosquito larvae (Culex pipiens fatigans). The experiment was carried out by medium treatment using intermittent flow-through system. Median lethal concentrations (LC50) were calculated by probit analysis. The LC50 values and 95% confidence intervals showed variable range for tested chemicals. Mosquito larvae generally appeared resistant than fish, while H. fossilis was found to be most sensitive. Stress signs in the form of behavioral changes are also observed. Both types of organisms are recommended as good bioindicator for the risk assessment of aquatic environment due to chemicals tested.

Authors+Show Affiliations

Gene-Tox Laboratory, Division of Genetics, Department of Zoology, Aligarh Muslim University, Aligarh 202002, UP, India.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

14761696

Citation

Farah, M Abul, et al. "Studies On Lethal Concentrations and Toxicity Stress of some Xenobiotics On Aquatic Organisms." Chemosphere, vol. 55, no. 2, 2004, pp. 257-65.
Farah MA, Ateeq B, Ali MN, et al. Studies on lethal concentrations and toxicity stress of some xenobiotics on aquatic organisms. Chemosphere. 2004;55(2):257-65.
Farah, M. A., Ateeq, B., Ali, M. N., Sabir, R., & Ahmad, W. (2004). Studies on lethal concentrations and toxicity stress of some xenobiotics on aquatic organisms. Chemosphere, 55(2), 257-65.
Farah MA, et al. Studies On Lethal Concentrations and Toxicity Stress of some Xenobiotics On Aquatic Organisms. Chemosphere. 2004;55(2):257-65. PubMed PMID: 14761696.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Studies on lethal concentrations and toxicity stress of some xenobiotics on aquatic organisms. AU - Farah,M Abul, AU - Ateeq,Bushra, AU - Ali,M Niamat, AU - Sabir,Rubina, AU - Ahmad,Waseem, PY - 2003/01/22/received PY - 2003/10/03/revised PY - 2003/10/25/accepted PY - 2004/2/6/pubmed PY - 2004/4/10/medline PY - 2004/2/6/entrez SP - 257 EP - 65 JF - Chemosphere JO - Chemosphere VL - 55 IS - 2 N2 - Three widely used xenobiotics pentachlorophenol (PCP), 2,4-dichlorophenoxyacetic acid (2,4-D) and 2-chloro-2,6-diethyl-N-(butoxymethyl) acetanilide (Butachlor) are evaluated for acute toxicity and stress behavior on freshwater fish (Heteropneustes fossilis, Clarias batrachus, Channa punctatus) and mosquito larvae (Culex pipiens fatigans). The experiment was carried out by medium treatment using intermittent flow-through system. Median lethal concentrations (LC50) were calculated by probit analysis. The LC50 values and 95% confidence intervals showed variable range for tested chemicals. Mosquito larvae generally appeared resistant than fish, while H. fossilis was found to be most sensitive. Stress signs in the form of behavioral changes are also observed. Both types of organisms are recommended as good bioindicator for the risk assessment of aquatic environment due to chemicals tested. SN - 0045-6535 UR - https://www.unboundmedicine.com/medline/citation/14761696/Studies_on_lethal_concentrations_and_toxicity_stress_of_some_xenobiotics_on_aquatic_organisms_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(03)01079-8 DB - PRIME DP - Unbound Medicine ER -