ABSTRACT
Few boreal waters are managed in a sustainable manner since cumulative effects are generally not considered (Schindler 1998). Fisheries and water quality have declined in most large water bodies of the southern boreal forest; however, some effects are results of overexploitation, alteration of
flow patterns, introductions of non-native species, and discharge of euthrophic nutrients and persistent contaminants (Bodaly et al., 1984a, b, 1984, 1993).
