The freshwater green alga Scenedesmus opoliensis proves to be a suitable bioindicator of water pollution with different herbicides. One of the best molecular markers of stress condition imposed by herbicides is overproduction of malondialdehyde resulting from lipid peroxidation in the damaged membranes. Methylviologen, a largely used pre-emergence herbicide which generates reactive oxygen speci...

On the territory of our country, in foreign Europe, North America, some regions there are outcrops calcareous rocks. The high endemism and same rare plant species concentration characteristic features such landscapes. results elemental composition primary assessment aboveground underground organs three from biotopes Samara region given. Three were chosen for studies: obligate calcephite Gypsoph...

One way to assess the impacts of toxicants on populations anurans is through developmental stability (DS) - ability buffer stresses during development stages. To extent possible perturbations in DS frogs that inhabit a polluted industrial area east Plovdiv city, Bulgaria, we applied analysis fluctuating asymmetry (FA) ten morphological traits P. ridibundus. As control group, used animals inhabi...

Phytoindication properties of Robinia pseudoacacia L. in the conditions Kamyanets-Podilsky were analyzed. Data on role plants ecological stabilization urban environment are given. It is noted that woody have a number advantages over others, as they enrich and purify air throughout year, their large area photosynthetic organs allows you to effectively absorb toxic substances from play an assimil...

The paper presents a study leading to a new acute toxicity test on embryonic and juvenile organisms of the great pond snail (Lymnaea stagnalis Linnaeus). Sulfuric acid, nitric acid, and ammonium hydroxide were used as waterborne toxicants in laboratory experiments. The exposure time was 24 h. Tests were conducted in 5–10 replications for each toxicant. The toxicity of the substances was classif...

A total of 385 species diatoms were identified in the phytoplankton 14 small Arctic tundra water bodies vicinity Tiksi Bay. We found that composition each lake is strictly individual. The ecological preferences diatom studied determined for more than 90% list. Indicator characteristics show a certain response to changes salinity and organic pollution. Several regularities revealed spatial distr...

The aim. aim of the work was to study indicators spermatogenesis in lake frog, Pelophylax ridibundus (Pallas, 1771), zone influence emissions from Burshtyn Thermal Power Plant (TPP).
 Materials and methods. Urinal sperm testes samples were taken male frogs under conditions anthropogenic pollution (Burshtyn industrial area). Such parameters as concentration ejaculate, number live spermatozo...