Level of Toxicity Water Area «tuleniy» as a Result of Bioassay

Abstract

Aim. To determine the toxicity of marine waters area " tuleniy ". Location. Area " tuleniy " Methods. Determining the level of toxicity of marine waters area "seal" method for biological testing was conducted according to the guidelines approved by the Ministry of natural resources (guidance on the definition of ..., 2002; Dolzhenko, 1978). Guide prepared by the Center for Russian register of hydraulic structures and the state water cadastre of the MNR of Russia jointly with specialists of the Institute Committee of Russia and the UNION of ecological problems of the Ministry of Ukraine. The basis of the proposed system of marine toxicity biotests based on the results of generalization of experimental research based on the problem of pollution of water bodies and numerous literature data, making it possible to identify features of the response of aquatic organisms of different taxonomic groups to toxic impurities of different nature and origin. Experimental studies were conducted on the culture of marine unicellular algae Phaeodactylum tricornutum on planktonic crustacea Acartia tonsa, the larvae of the chironomid Chironomus gr. salinarius and juvenile guppies Poecillia reticulata Peters. Results. Comparative analysis of the results of research from 2001 to 2006 showed no acute toxic effect on the test object zooplankton and phytoplanton. Main conclusions. Throughout the study period (2001-2003, 2005-2006), you must allocate the spring of 2002, when it was recorded, the average of the lowest five years of research, the level of toxicity of water for the analyzed area.Considering the results of biological testing of the surveyed area by periods, it should be noted that the average level of toxicity of the waters did not undergo significant changes and were on the same level, not exceeding 17,6% (table. 1). According to the classification shown in table 2, the water in the surveyed area is assessed as "non-toxic".