L. VELKOVA-JORDANOSKA, 2006. Molecular-biological analysis of the parasite Capillaria sp. of the liver of barbel (Barbus meridionalis petenyi Heck.) in Lake Ohrid. Bulg. J. Agric. Sci.,12: 315-319 The analysis of parasites molecular variation has important implications on the taxonomy, phylogenic and population genetics studies. Polymerase chain reaction (PCR) can have significant advantages ov...

 The concentrations of Cd, Pb, Ni and Hg were determined in gill, liver and muscle of Barbus xanthopterus in down streams of Karoon and Dez Rivers during summer 2009. Heavy metal concentrations varied significantly, depending on the types of the tissue in fish species. The levels of heavy metals such as Cd, Pb, Ni and Hg in the Barbus xanthopterus of Karoon River were higher than in Barbus xant...