Histopathology of Rainbow Trout Exposed to Sublethal Concentrations of Methiocarb or Endosulfan

Liver, spleen, trunk kidney, gills, and brain of rainbow trout (Oncorhynchus mykiss) were examined histologically after exposure to different concentrations of methiocarb (2.5 and 3.75 mg/L) or endosulfan (0.6 and 1.3 μg/L) for 21 days. Histological recovery was also studied by maintaining the pesti...

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Bibliographic Details
Published in:Toxicologic pathology 2007-04, Vol.35 (3), p.405-410
Main Authors: Altinok, Ilhan, Capkin, Erol
Format: Article
Language:English
Subjects:
Animals
Biological and medical sciences
Dose-Response Relationship, Drug
Endosulfan - toxicity
Gills - drug effects
Gills - pathology
Insecticides - toxicity
Kidney - drug effects
Kidney - pathology
Liver - drug effects
Liver - pathology
Medical sciences
Methiocarb - toxicity
Oncorhynchus mykiss
Pesticides, fertilizers and other agrochemicals toxicology
Spleen - drug effects
Spleen - pathology
Toxicology
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Summary:Liver, spleen, trunk kidney, gills, and brain of rainbow trout (Oncorhynchus mykiss) were examined histologically after exposure to different concentrations of methiocarb (2.5 and 3.75 mg/L) or endosulfan (0.6 and 1.3 μg/L) for 21 days. Histological recovery was also studied by maintaining the pesticide-exposed fish in a freshwater system for an additional 30 d. Lesions were not evident in liver, kidney, spleen, or brain of fish exposed to either concentration of methiocarb for 21 d. Lesions were observed in gills, liver, spleen, and trunk kidney (but not brain) of rainbow trout exposed to either concentration of endosulfan. There was no concentration-related effect observed on the histopathological lesions. After 30 days of recovery, fish had no histological lesions in gills, kidney, spleen, liver, or brain. Therefore all the changes observed during exposure were reversible.
ISSN:0192-6233
1533-1601
DOI:10.1080/01926230701230353