Abstract
In the end of the 1960s the detrimental effects of metals and organochlorines on Baltic biota were observed and the increased concentrations of anthropogenic substances in biota were correlated to decreasing populations of many fish feeding species (Hook and Johnels 1972, Sandegren et al. 1980, Olsson 1963, Heiander 1975, Lindberg 1975, Odsjo and Sondell 1976).
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have