ANALYSIS OF SENSITIVITY OF CRUSTACEANS UNDER OIL SPILL CONDITIONS IN WATER BODIES OF THE ASTRAKHAN REGION
Fomicheva Galina Petrovna - Lead Engineer, Branch of the Center for Laboratory Analysis and Technical Measurements in the Southern Federal District - Center for Laboratory Analysis and Technical Measurements in the Astrakhan Region, 414000, Astrakhan, Bakinskya str., 113, g.fomicheva2012@mail.ru
Nasibulina Botagoz Murasovna - Doctor of Biological Sciences, Associate Professor, Professor of the Department of Ecology, Nature Management, Land Management and Life Safety, Astrakhan State University named by V.N. Tatischev, Russian Federation, 414056, Astrakhan, Tatishchev st., 20a, aspu.nasibulina@yandex.ru
Biryukova Maria Georgievna - Astrakhan, 414021, Russian Federation, Tsarev river embankment, 119, Researcher, Laboratory of Ecological and Biological Research, Astrakhan State Reserve, mizuirono@yahoo.com
The article shows the advantage of the method of biotesting on crustaceans in determining the degree of toxicity of natural water samples taken in places of emergency oil spills. Planktonic and benthic crustacean species (including inhabitants of the Volga River delta) were selected as objects for the study: Daphnia (Ctenodaphnia) magna Straus, Moina weismanni Ishikawa, Moina macrocopa, Straus, Chydorus sphaericus (Muller, 1776), Acanthocyclops vernalis (Fisher, 1863), Dikerogammarus haemobaphes (Eichwald, 1841), Cypridopsis vidua (O.F. Muller, 1779), Sarscypridopsis aculeata (Costa, 1847) and the imported Chinese species Dolerocypris sinensis (G.O.Sars, 1903). The values of the threshold for the safe concentration of petroleum products in natural water samples varied in the range of 0,031-0,136 mg/dm3. The actual level of harmless concentrations (BC10) of dissolved and dispersed petroleum products in natural water in some places of emergency spills is significantly lower than the MPC for petroleum products for reservoirs of fishery significance.
Key words: oil pollution, aquatic environment, biotesting, toxic effects, harmless concentration.
