Many landscape, limnological, and ecological factors synergistically affect the mercury cycle and subsequently influence total mercury (THg) concentrations in fish. In Chapter 1, the associations between watershed and lake ...

Freshwater lake experiments on the effects of nanosilver were completed at the Experimental Lakes Area in northwestern Ontario. Since nanosilver has antibacterial properties it is expected to have negative effects on ...

Mercury is a well known toxic contaminate that poses health risks to humans and wildlife. In Ontario 85% of consumption restrictions of fish from inland lakes is due to mercury contamination. The purpose of this study was ...

Brook trout are a highly valued aquatic species that are sensitive to changes in their environment. Studies show that optimal brook trout habitats have declined due to anthropogenic effects like forest fragmentation, ...

Sixty-seven streams located south-west of Lake Nipigon, Ontario, were sampled for brook trout and macroinvertebrate orders. Sixteen orders were used to determine if their community structure significantly changed in different ...

The purpose of studying the long term remediation success of Kama Creek, Nipigon Bay, Lake Superior, was to follow up on past remediation research with special attention to emerging concerns and the importance of continued ...

Increasing water contaminants has been a growing problem in Southern Ontario due to rapid urbanization, agricultural runoff and pollution. Determining how riffles and pools respond to changing contaminants is crucial to ...

The designation of Thunder Bay’s Harbour as an Area of Concern (AOC) by the International Joint Commission prompted the need for Remedial Action Plans to improve historically significant habitats (RAP, 1991; RAP 2004). In ...

In recent years, human beings have done much damage to the lakes and wetlands, resulting in some irreversible effects. It is, therefore, necessary to restore and protect the remaining wetlands. The most representative ...

Understanding species interactions is critical to predicting the ecosystem-level impacts of anthropogenically-caused species extirpations. In particular, the loss of keystone species - those that have exceptionally large ...