... from twelve grassland ecosystems, taking into account the pollution level source (an old chimney plant, which provided heavymetals pollutants: As, Cu, Zn, Pb, Mn, Ni). The altitude of grasslands varied ...
... (Heckel, 1837)) from the Maritsa River were studied during 2013. Thirty two specimens of V. melanops were examined with standard techniques for parasites and heavy metal contamination. The purpose of this ...
Published in Scientific Papers. Series D. Animal Science., Vol. LVI Written by Rodne NASTOVA, Vasil KOSTOV, Natasha GJORGOVSKA
In the period from 2007 to 2009 th year, the heavy metal concentration ...
Published in Scientific Papers. Series D. Animal Science., Vol. LVI Written by Diana KIRIN, Vladimira HANZELOVÁ, Sonya SHUKEROVA, Stefan HRISTOV, Ludmila TURCEKOVÁ, Marta SPAKULOVA
Ecological monitoring ...