Shakhmatova O. Hydrobionts antioxidant system activity in Black Sea littoral water

The biomarker complex for the quantitive estimation of both marine organism and environment is proposed on basis of field and laboratory investigated. The role of catalase in adaptation of hydrobionts for pollution was revealed for the first time. For the indicatore organisms there were determinated the confidence intervals of the catalase activity corresponding to normal conditionally normal functioning in this region of Black Sea. The norm of lipid peroxidation reaction of the indicators organism was determined. The range of changing of the environmental parameters (temperature, density, oxygen, phosphorus, nitrates and nitrites concentrations) was determined for the fist time wich correspond to their conditionally normal functioning of the fish larvae Atherina hepsetus and seaweeds Enteromorpha intestinalis and Ceramium rubrum. The studied regions were ranged according to the level of pollution.