Sutuyeva L.R., Shalakhmetova Т.М., Trudeau V.L., Kolumbayeva S.Zh., Lovinskaya A.V. Growth and development of the green toad (Bufo viridis) from the water bodies of the oil producing regions of Kazakhstan

Al-Farabi Kazakh National University, Kazakhstan, Almaty; University of Ottawa, Canada, Ottawa,

  • Sutuyeva L.R., Shalakhmetova Т.М., Trudeau V.L., Kolumbayeva S.Zh., Lovinskaya A.V

Abstract

Environmental pollution with oil and petroleum products leads to a decrease in animal biodiversityand human diseases. Due to the intense pollution of Kazakhstan’s water bodies located on the territoryof oil producing regions, the purpose of this study was to study the effect of different concentrations ofoil on the growth and development of the green toad (Bufo viridis). This species of anuran amphibiansis widespread in Kazakhstan, which is especially important given the aridity of the lands of the oil-producing regions. A chronic exposure to the concentrations of oil hydrocarbons found in the water of thereservoirs of the Aktobe, Atyrau and Mangistau regions on the tadpoles of the green toad (Bufo viridis)was carried out The results of the study revealed suppression of growth (size and weight) and a developmental delay in tadpoles from experimental groups. To determine the reasons for the slowdown ingrowth and development, the content of lipid peroxidation products (LHO and MDA) and the activity ofantioxidant defense enzymes in the liver of tadpoles of the green toad (Bufo viridis) were studied. It hasbeen shown that the production of LHO and MDA increases after exposure of the tadpoles to oil hydrocarbons, while the activity of antioxidant enzymes, on the contrary, decreases, which indicates enhancedoxidative stress in the liver of the treated tadpoles. Thus, exposure to oil hydrocarbons in concentrationsfound in the water bodies of the oil producing regions of Kazakhstan suppresses the growth and development of the green toad (Bufo viridis), one of the reasons of which is the increase of oxidative stress.Key words: water soluble fraction of oil, Bufo viridis, growth, development, oxidative stress, lipidperoxidation, antioxidant enzymes.
Published
2018-10-07
How to Cite
LOVINSKAYA A.V, Sutuyeva L.R., Shalakhmetova Т.М., Trudeau V.L., Kolumbayeva S.Zh.,. Sutuyeva L.R., Shalakhmetova Т.М., Trudeau V.L., Kolumbayeva S.Zh., Lovinskaya A.V. Growth and development of the green toad (Bufo viridis) from the water bodies of the oil producing regions of Kazakhstan. Eurasian Journal of Ecology, [S.l.], v. 55, n. 2, p. 111-120, oct. 2018. ISSN 2617-7358. Available at: <http://bulletin-ecology.kaznu.kz/index.php/1-eco/article/view/822>. Date accessed: 10 dec. 2018.
Section
АКТУАЛЬНЫЕ ПРОБЛЕМЫ СОХРАНЕНИЯ БИОЛОГИЧЕСКОГО РАЗНООБРАЗИЯ