1. Effects of chloridazon on early life stages of marbled crayfish.
- Author
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Velisek, Josef, Stara, Alzbeta, Zuskova, Eliska, Chabera, Jan, Kubec, Jan, Buric, Milos, and Kouba, Antonin
- Subjects
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CRAYFISH , *PYRIDAZINONES , *BEHAVIOR , *ANTIOXIDANTS - Abstract
The effects of chloridazon exposure at concentrations of 2.7 μg/L (maximal real environmental concentration in the Czech Republic), 27 μg/L, 135 μg/L and 270 μg/L on early life stages of marbled crayfish (Procambarus virginalis) were evaluated. Significantly higher glutathione S-transferase activity and reduced glutathione level was observed at all tested concentrations of chloridazon compared with the control. Chloridazon in concentrations 27, 135 and 270 μg/L caused delay ontogenetic development and slower growth. Histopathological changes in hepathopancreas were found in two highest tested concentrations (135 μg/L and 270 μg/L). Crayfish behaviour was not altered in control vs. exposed animals, while the activity parameters tend to decline with increasing chloridazon concentrations. • How chloridazon, have effects on early life stages of crayfish. • Chloridazon delay ontogenetic development and reduced growth. • Exposure of chloridazon caused histopathological changes in hepathopancreas. • Chloridazon affected antioxidant system. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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