Summary
The toxic effects of Fenthion on the gills of Cichlid fishes were investigated. In Herotilapia multispinosa hyperplasia and separation of the respiratory epithelium, lamellar telangiectasis and thrombosis occurred. The lamellar epithelium of surviving fish regenerated in all cases. In Tilapia leucosticta no telangiectasis was found, but all the secondary lamellae were fused due to the severe hyperplasia of the gill epithelium.
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This work was undertaken with the aid of Prof. Dr. E. Kulzer.
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Jauch, D. Gill lesions in Cichlid fishes after intoxication with the insecticide Fenthion. Experientia 35, 371–372 (1979). https://doi.org/10.1007/BF01964359
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DOI: https://doi.org/10.1007/BF01964359