Pedogeochemical anomalies in surroundings of great cormorant colony (Case Study in Lithuania)

Abstract

The area where the colony of great cormorants in Curonian Spit (Lithuania) prospers from 1989 is the study object of "Koreko" project. Based on geochemical results of 90 samples of topsoil from 6 zones which differ according to the influence of the great cormorants the following main accumulating chemical elements were revealed: S, Cu, P, Cl, Ti and Ca. The contents of some other harmful chemical elements (Cr, Zn, Ni, Pb and Sb) are also elevated in the influence zones of cormorants. Energy-dispersive analysis was used for determination of the contents of 33 chemical elements.