Effects of Chlorpyrifos Exposure on Growth and Food Utilization in Australian Catfish, Tandanus tandanus

• Published in: Bulletin of environmental contamination and toxicology Vol. 88; no. 1; pp. 25 - 29
• Main Authors: Huynh, Huy P. V., Nugegoda, Dayanthi
• Format: Journal Article
• Language: English
• Published: New York Springer-Verlag 2012; Springer Nature B.V
• Subjects: Animals; Aquatic Pollution; Catfishes - growth & development; Catfishes - physiology; Chlorpyrifos; Chlorpyrifos - toxicity; Dose-Response Relationship, Drug; Earth and Environmental Science; Eating - drug effects; Ecotoxicology; Environment; Environmental Chemistry; Environmental Health; Feeding Behavior - drug effects; Fish; Food; Growth and Development - drug effects; Insecticides - toxicity; Pesticides; Pollution; Soil Science & Conservation; Tandanus tandanus; Waste Water Technology; Water Management; Water Pollutants, Chemical - toxicity; Water Pollution Control; Australia; Australian catfish; Chlorpyrifos and fish growth
• ISSN: 0007-4861; 1432-0800
• DOI: 10.1007/s00128-011-0431-8

Australian catfish, T. tandanus were exposed to a short term pulse of chlorpyrifos at 2 or 10 μg L −1 and grown in optimal conditions to investigate the effect of the pesticide on fish growth. The final weight was lower in fish exposed to chlorpyrifos (8.54 ± 0.19 and 8.77 ± 0.44 g) respectively compared to the control fish (10.5 ± 0.72 g) while the hepatosomatic index in fish exposed to chlorpyrifos was a higher (1.86 ± 0.10 and 2.01 ± 0.12) than in the control fish (1.65 ± 0.14). Both bi-weekly growth rate and brain Acetylcholinesterase (AChE) activity increased with post-exposure time.