Effects of chlorpyrifos exposure on growth and food utilization in Australian catfish, Tandanus tandanus.
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.
School of Applied Sciences, RMIT University, PO Box 71, Bundoora West Campus, Bundoora, VIC, 3083, Australia.
Huy P V
HP
Huynh
Dayanthi
D
Nugegoda
D000818:Animals; D002397:Catfishes / Q000254:growth & development / Q000502:physiology*; D004390:Chlorpyrifos / Q000633:toxicity*; D004305:Dose-Response Relationship, Drug; D004435:Eating / Q000187:drug effects*; D005247:Feeding Behavior / Q000187:drug effects; D048788:Growth and Development / Q000187:drug effects; D007306:Insecticides / Q000633:toxicity*; D014874:Water Pollutants, Chemical / Q000633:toxicity
D007306:Insecticides; D014874:Water Pollutants, Chemical; D004390:Chlorpyrifos