THE TOXIC EFFECT OF A NUMBER OF PESTICIDES IN CONCENTRATIONS OF THEIR ACTIVE SUBSTANCES EQUAL TO TLV ON THE DEVELOPMENT OF DAPHNIA MAGNA
Abstract
Currently, pesticides are widely used in the world. At the same time, the indiscriminate use of pesticides has become a serious environmental problem, posing a big potential risk to non-target organisms. Pesticides or their breakdown products are found in natural reservoirs at sites of constant ecological and toxicological monitoring. The effect of a number of pesticides in concentrations of their active substances equal to TLV on the development of Daphnia magna was evaluated in the research. Aquatic organisms, including invertebrates, are used for ecological biomonitoring all over the world. The study was conducted on small model groups of newborn animals (younger than 24 hours). The effects on fertility rates, linear dimensions of daphnia were determined. The linear body dimension and fertility of small crustaceans were lower for all pesticides compared to the control group.
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