Comparison of Terbutryn Acute Toxicity to <i>Danio rerio</i> and <i>Poecilia reticulata</i>

Plhalová, Lucie; Mácová, Stanislava; Doleželová, Petra; Maršálek, Petr; Svobodová, Zdeňka; Pištěková, Vladimíra; Bedáňová, Iveta; Voslářová, Eva; Modrá, Helena

doi:10.2754/avb201079040593

Acta Veterinaria > Archive > 2010, Vol. 79 > Issue 4 > Comparison of Terbutryn Acute Toxicity…

Acta Vet. Brno 2010, 79: 593-598

https://doi.org/10.2754/avb201079040593

Comparison of Terbutryn Acute Toxicity to Danio rerio and Poecilia reticulata

Lucie Plhalová, Stanislava Mácová, Petra Doleželová, Petr Maršálek, Zdeňka Svobodová, Vladimíra Pištěková, Iveta Bedáňová, Eva Voslářová, Helena Modrá

Department of Veterinary Public Health and Toxicology, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Czech Republic

The aim of the present study was to determine and compare acute toxicity of terbutryn in Danio rerio and Poecilia reticulata, and in two different developmental stages of D. rerio – embryonic and juvenile. Acute toxicity tests were performed according to OECD methodology. The LC50 values were assessed by probit analysis using EKO-TOX 5.2 programme. The 96hLC50 terbutryn mean value of 5 tests was 2.85 ± 0.75 mg·l^-1 for the juvenile stage of P. reticulata and 5.71 ± 0.46 mg·l^-1 for the juvenile stage of D. rerio. For the embryonic stage of D. rerio the 144hLC50 terbutryn mean value of 6 tests was estimated as 8.04 ± 1.05 mg·l^-1. The study proved significantly higher (p < 0.01) sensitivity of the juvenile stage of D. rerio to terbutryn compared to the embryonic stage of D. rerio and significantly higher (p < 0.01) sensitivity of the juvenile stage of P. reticulata to terbutryn compared to the juvenile stage of D. rerio. herbicides. This study documented differences in sensitivity of several fish species and different developmental stages of fish to one of triazine.