RESEARCH ON THE CHANGES OF SOME PHYSIOLOGICAL PARAMETERS IN PRUSSIAN CARP UNDER THE ACTION OF THE FUNGICIDE ANTRACOL.

Water is indispensable for all physiological processes that determine the natural, correct development of living organisms. The intense anthropogenic activity diminished water retention capacity and caused increasing pollution to an extent that often threatens public health (NIKONOROV, 1981). The production and use of pesticides is a serious threat to the hydrosphere, which receives large amounts of such chemical substances, because of the waste discharges from the factories of antiparasitic products or because of rainwaters that wash away these substances from the treated agricultural lands (MOHAN & ARDELEAN, 1993). The spread of pesticides has become global as they are present in all inland waters which, in the end, reach different seas and oceans (BREZEANU & SIMON-GRUIŢĂ, 2002). In case of water contaminated with pesticides, the environmental impact is mainly due to the bioconcentration and biomagnification capacity of pesticides in organisms (GAVRILESCU, 2008). The paper renders the results of the investigations referring to the modifications of certain physiological indices under the influence of the fungicide Antracol 70 WP (Propineb 70%) at two thermal thresholds. Temperature is one of the most important environmental factors the living organisms had to adapt to in order to maintain their vital functions at an optimum level (MIHAI & BREZEANU, 2013). Antracol is a contact organic fungicide from the dithiocarbamate group. It is toxic to fish and aquatic invertebrates (KIDD & JAMES, 1991). It produces thyroid cancer in laboratory animals (HASEGAWA et al., 1993). The investigations proved that the fungicide Antracol 70 WP has an inhibitory effect on the oxygen consumption and respiratory rate on the investigated fish species (Carassius gibelio Bloch); at the same time, it increased the number of erythrocytes and reduced the glycaemic level having a hypoglycaemic effect. The carried out experiments emphasized that the fungicide Antracol 70 WP is toxic to fish even at very low concentrations. [ABSTRACT FROM AUTHOR]