Effects of S-metolachlor and its degradation product metolachlor OA on marbled crayfish (Procambarus virginalis)

Increasing production of energy crops in Europe, mainly maize and rapeseed, has altered patterns of pesticide use in recent decades. The long-term effects of S-metolachlor (S-M) and of its metabolite metolachlor OA (M-OA) at the environmentally relevant concentration of 4.2 μg L−1 and at 42 μg L−1 (...

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Bibliographic Details
Published in:Chemosphere (Oxford) 2019-06, Vol.224, p.616-625
Main Authors: Stara, Alzbeta, Kubec, Jan, Zuskova, Eliska, Buric, Milos, Faggio, Caterina, Kouba, Antonin, Velisek, Josef
Format: Article
Language:English
Subjects:
Biomarkers
Crustacean
Herbicide
Histology
Metabolite
Recovery
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Summary:Increasing production of energy crops in Europe, mainly maize and rapeseed, has altered patterns of pesticide use in recent decades. The long-term effects of S-metolachlor (S-M) and of its metabolite metolachlor OA (M-OA) at the environmentally relevant concentration of 4.2 μg L−1 and at 42 μg L−1 (ten-fold concentration) on marbled crayfish (Procambarus virginalis) were evaluated in a 28-day exposure and after a subsequent 28-day recovery period. Indicators assessed were behaviour; biochemical haemolymph profile; oxidative and antioxidant parameters of gill, hepatopancreas, and muscle; and histology of hepatopancreas and gill. Results showed biochemical haemolymph profile (lactate, alanine aminotransferase, aspartate aminotransferase, inorganic phosphate), lipid peroxidation in hepatopancreas, and antioxidant parameters (catalase, reduced glutathione, glutathione S-transferase) of hepatopancreas and gill of crayfish exposed to S-M and M-OA to significantly differ from controls (P 
ISSN:0045-6535
1879-1298
DOI:10.1016/j.chemosphere.2019.02.187