Journal
SCIENCE OF THE TOTAL ENVIRONMENT
Volume 566, Issue -, Pages 733-740Publisher
ELSEVIER
DOI: 10.1016/j.scitotenv.2016.05.113
Keywords
Triazine; Metabolite; Crustacean; Histology; Biochemical parameters; Recovery period
Categories
Funding
- Ministry of Education, Youth and Sports of the Czech Republic - project CENAKVA [CZ.1.05/2.1.00/01.0024]
- Ministry of Education, Youth and Sports of the Czech Republic - project CENAKVA II under the NPU I program [LO1205]
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Terbuthylazine is a widely used triazine pesticide. This, together with one of its degradation products, terbuthylazine-desethyl (TD), are frequently found in quantities exceeding the EU limit of 0.1 mu g/L in aquatic ecosystems where they might constitute a serious risk to non-target organisms. The sub-chronic effects of TD at 2.9 mu g/L (real environmental concentration) and at 580 mu g/L were investigated in a non-target aquatic species, the red swamp crayfish (Procambarus clarkii). Gill and hepatopancreas histopathology, alterations in biochemical parameters of haemolymph, oxidative damage to hepatopancreas, and changes in antioxidant biomarkers in muscle and hepatopancreas were recorded at both tested concentrations after 14 days exposure. A 14 day recovery period in TD-free water was not sufficient for restoration of normal parameters. Chronic terbuthylazine-desethyl exposure affected biochemical profile, and the antioxidant system, caused oxidative stress and histopathological changes in hepatopancreas of red swamp crayfish. (C) 2016 Elsevier B.V. All rights reserved.
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