Now showing items 1-6 of 6
Riparian habitat and vegetation recovery of headwater streams after clearcut harvesting
In this thesis I examined two important aspects of clearcut harvesting along small headwater streams and their riparian zones. The objectives of the study were: 1) to investigate the impacts of clearcut harvesting on the ...
The Impacts of forest management practices on mercury contamination in small stream biota
Mercury is a contaminant of global concern as it is present in all biota and ecosystems around the world. Small streams are influenced by the terrestrial systems that feed them. I examined the presence of mercury in small ...
Characterization of rainbow trout (Oncorhynchus mykiss) and fathead minnow (Pimephales promelas) cell lines as models to study pulp and paper effluent effects in fish
The effects of aquatic toxicants on fish growth and development have been well-documented, in contrast to the changes in gene expression that necessarily precede them. Many of these toxicants are exogenous compounds that ...
Geochemical and toxicological investigation of the Hogarth and Caland Pit Lakes, former Steep Rock Iron Mine site
The closure of the Steep Rock Iron Mines near Atikokan, Ontario, Canada in the late 1970's left behind an area of severe environmental concern. The subsequent flooding of the pit mines resulted in the formation of two ...
The Influence of wetlands and watershed geology on lake chemistry of five remote lakes in Northwestern Ontario
In chapter 1 of this study the relationship between spatial, chemical, and biological factors and their influence on mercury concentration s in walleye were examined. Water, sediment, and fish tissue samples were collected ...
Floristic structure, composition and depth of edge influence at buffer and wildfire edges along small boreal streams
Within the boreal forest of northwestern Ontario clearcutting and fire are the most common edge-creating disturbances. Along streams, wild fire consumes the majority of trees to the edge of riparian zones. However, forest ...