Abstract
The paper presents results of investigations of zinc and manganese concentration in the water, bottom deposits and ichthyofauna of Yavoriv water reservoir, which was formed in 2002 in frames of project of Yavoriv sulfur quarry revitalization. Mentioned elements are characterized by wide spectrum of action in fish body, which, depending on their concentration, can be either physiologic or toxic. It was revealed, that concentration of Zn and Mn in the water of Yavoriv water reservoir varied considerably depending on place of samples taking. The lowest Zn concentration in the water was below 1 MPL (maximum permitted level), namely 0.6 µg/l, and the highest – more than 7 MPL (70.5 µg/l). Similar differences were observed concerning Mn concentration in the water – the range of determined values varied from 3.3 (0.3 MPL) to 48.6 µg/l. The same peculiarities of Zn and Mn distribution were estimated in regard to their content in bottom deposits. In particular, difference of Zn concentration in samples of bottom deposits was near 23 times – from 5.4 to 230.0 mg/kg depending on the point of samples taking. Mn content in bottom deposits varies from 61.5 to 1500 mg/kg. Zn and Mn concentration in skeletal muscles, gills and skin of perch and rudd didn’t exceed MPL regardless their content in the water and bottom deposits. In most of cases, gills accumulated these elements more than other investigated tissues.
Highlights
Anthropogenic transformation and industrial pollution of landscapes belongs to important ecological problems in Ukraine; their solution can be realized in number of ways, including hydrological technique, introduction of sustainable plants, land development etc
Similar differences were observed concerning Mn concentration in the water – the range of determined values varied from 3.3 μg/l in point No1 (0.3 MPL) to 48.6 μg/l in point No3
The results, presented in the paper, shows, that concentration of Zn and Mn in the water of Yavoriv water reservoir varied considerably depending on place of sample taking
Summary
Anthropogenic transformation and industrial pollution of landscapes belongs to important ecological problems in Ukraine; their solution can be realized in number of ways, including hydrological technique, introduction of sustainable plants, land development etc. Rehabilitation of technogenic landforms by formation of artificial water bodies is rational due to both ecological and economical backgrounds (Szabo et al, 2010). Yavoriv water storage reservoir was formed in 2002 in frames of project of Yavoriv sulfur quarry revitalization. Filling of the reservoir with water lasted from 2002 to 2006; nowadays it is one of the largest artificial waterbodies in Ukraine with the total volume of near 200 million m2 and depth up to 70 m (Taras, 2013). Water supplementation of the reservoir is provided by Schklo River – the tributary of San River from Vistula River basin. Perspectives of further use of Yavoriv water reservoir comprise mainly recreation activity and fisheries, but possibilities of their implementation are limited by water body ecological conditions, including heavy metals concentration in the water
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