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The effects of prometryne on early life stages of common carp
 LIDOVÁ, Jaroslava
The effects of prometryne on early life stages of common carp Prometryne belongs to the triazine group of herbicides, which are used in agriculture. The aim of this study was to assess the impact of prometryne on mortality, occurrence of deformation, growth and development of early life stages of common carp (Cyprinus carpio L.). For assessing the impact of ryne on the early developmental stages of carp was used the method of embryo-larval toxicity test for fish (OECD test n. 210). Toxic effect of prometryne at four concentrations (0.51 micrograms.l-1, 80 micrograms.l-1, 1.2 mg.l-1 and 4 mg.l-1) was investigated during 35 days. Negative effects on mortality and growth were observed in the experimental group number four with the highest concentration of prometryne (4 mg.l-1). Retardation of ontogeny development of carp was observed in the experimental groups number three and four (concentrations 1.2 mg.l-1 and 4 mg.l-1). On the basic of test results was estimated at 35 day LC50 = 2,314 mg.l-1 prometryne. Based on mortality in experimental group was estimated LOEC = 1,10 mg.l-1 and NOEC = 0,85 mg.l-1 prometryne.
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