“…Bioindication provides information about the direct reaction of organisms, communities or ecosystems to natural or anthropogenic changes (Durkalec et al, 2018), since the biota reacts even to minor changes in external conditions and can even predict the geographical origin (Denisova et al, 2008;Franke et al, 2005;Gauthier-Lafaye et al, 2008;Huang et al, 2017;Ilyinskikh et al, 1998;Sheppard, 2011). The concentration of metals in the body of animals and human beings depends, not only on anthropogenic activity (Durkalec et al, 2018), but also on type of diet (Wang et al, 2014;Zhao et al, 2016), physiological specification of organs and tissues (Carpenè et al, 2017), and genetic characteristics of organism (Demirezen and Uruç, 2006).…”