The International Joint Commission has recently completed a five-year study (2000-2005) to review the operation of structures controlling the flows and levels of the Lake Ontario - St. Lawrence River system. In addition to addressing the multitude of stakeholder interests, the regulation plan review also considers environmental sustainability and integrity of wetlands and various ecosystem comp...

The Kuhkenah Network (K-Net) provides information and communication technologies (ICTs), telecommunication infrastructure and application support in First Nation communities across a vast, remote region of north-western Ontario as well as in other remote regions in Canada. This private telecommunications network supports the development of online applications that combine video, voice and data ...

Although predation by non-native alewife (Alosa pseudoharengus) on lake trout fry (Salvelinus namaycush) has been documented, whether or not emergent lake trout fry innately recognize alewives as predators is unknown. This study investigated the behavior of post-emergent, free-swimming lake trout fry in the presence of alewives. Study objectives were to determine (1) if fry respond to the prese...

The freshwater amphipod Diporeia is a dominant macroinvertebrate speciesin Lake Superior’s benthic community and an important prey item for many fish. Acapacity to predict growth and production rates of Diporeia using a bioenergeticsmodel requires information on physiological processes of the species. The objectiveof this study is to quantify oxygen consumption of Lake Superior ...

Fish mercury levels appear to be increasing in Ontario, Canada, which covers a wide geographical area and contains about 250 000 lakes including a share of the North American Great Lakes. Here we project 2050 mercury levels in Ontario fish, using the recently measured levels and rates of changes observed during the last 15 years, and present potential implications for fish and human health. Per...

We examined 4,848 regurgitated digestive pellets of double-crested cormorants (Phalacrocorax auritus) over a 6-year period (1992–97) to estimate annual predation on sport and other fishes in the eastern basin of Lake Ontario. We found more than 51,000 fish of 28 species. Using a model that incorporates annual colony nest counts; fledgling production rates; adult, immature, and young-of-year res...