English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

This study investigated the acute toxicity in  Clarias gariepinus  to insecticides currently used in Benin cotton fields, including Thalis 112 EC (Emamectin benzoate 48 g L −1 , Acetamiprid 64 g L −1 ), Vizir C 92 EC (Cypermethrin 72 g L −1 , Abamectin 20 g L −1 ), Pyrinex Quick 212 EC (Deltamethrin 12 g L −1 , Chlorpyrifos 200 g L −1 ) and Pyro FTE 472 EC (Cypermethrin 72 g L −1 , Chlorpyrifos 400 g L −1 ) with emphasis on liver histopathological effects. A set of 180 juveniles of  C. gariepinus  (5.21 ± 3.22 g) was exposed for 96 h to increasing concentrations of each pesticide. The values of 96-hLC 50  were 4.778, 0.002, 0.004, and 0.012 µL L −1  for Thalis, Vizir, Pyrinex, and Pyro, respectively, indicating that Vizir, Pyrinex, and Pyro were very highly toxic to  C. gariepinus  juveniles. During the experiments, the morphological and behavioral responses (discoloration, hyperactivity, lethargy, etc.) were observed in exposed fish, hypothesizing the neurotoxicity of these pesticides. Histopathological alterations observed in liver of contaminated fish were regressive changes, such as necrosis, vacuolation, bleeding, nuclear degeneration, hepatocytes degeneration, sinusoids dilatation, etc. Vizir induced the highest histological alteration indices while the lowest were induced by Thalis, confirming the highest toxicity of Vizir. These results indicate that acute concentrations of these insecticidal molecules have destructive effects on the liver of  C. gariepinus .

Comparative assessment of acute toxicity and histological changes in liver of African catfish Clarias gariepinus exposed to cotton insecticides