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The association between watershed characteristics and mercury concentrations in fish of Northern Ontario lakes
(2014-01-22)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 ... -
Factors influencing thermal variability and fish distribution in small boreal steams / by Lisa McKee.
(2010)The spatial variability of stream temperature is an important component of habitat within streams providing optimal temperatures for foraging and thermal refugia for sensitive species such as brook trout. Riparian shading ... -
Habitat use and movement by brook trout (Salvelinus fontinalis) and rainbow trout (Oncorhynchus mykiss) in three tributaries of Nipigon Bay, Lake Superior
(2001)Three streams were surveyed: Dublin Creek, MacInnes Creek, and Little Cypress River in Northwestern Ontario. -
Habitat use, movement patterns, and home ranges of coaster brook trout in Nipigon Bay, Lake Superior
(2004)Coaster brook trout are one of two salmonine species native to Lake Superior. Abundant and widely distributed in Lake Superior a century ago, they have been reduced to a few remnant stocks due to exploitation and habitat ... -
How does aquatic invertebrate community structure and abundance relate to brook trout (Salvelinus fontinalis) habitat quality?
(2019)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 Impacts of forest management practices on mercury contamination in small stream biota
(2012-11-10)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 ... -
Impacts of timber harvesting on stream macroinvertebrate communities at different spatial scales in Ontario's boreal forest
(2001)Study area: Wolf River, Mackenzie River, Spruce River and Nipigon 10 burn zone watersheds. These are tributaries of Lake Superior and lie within the northwestern Ontario boreal forest near Thunder Bay, Ontario. Sites were ... -
Influence of culverts on small stream fish communities in Northwestern Ontario / by Eric K. Berglund.
(2007)Stream crossings may alter fish habitat and fragment lotic environments, which could alter fish movement in stream reaches and lead to changes in fish community structure and population dynamics at the local and riverscape ... -
Influence of light intensity on activity and habitat utilization of walleye (Sander vitreus) in two Northwestern Ontario lakes
(2006)Ecologists have paid considerable attention to how and why organisms select particular habitats. Of fundamental importance is discerning which physical factors of the environment restrict the occurrence of organisms to ... -
Influence of local and landscape scale factors on the presence, relative abundance and characteristics of brook trout (Salvelinus fontinalis) in beaver ponds
(2006)Study area : Mackenzie River watershed, northeast of Thunder Bay, Northwestern Ontario (drains into Lake Superior) -
Pre- and post-forest management investigations of factors affecting sediment movement in riparian areas in Northwestern Ontario
(2004)The principal objectives of this study were to measure the impacts of timber harvesting on sediment transport rates (mineral and organic) associated with two clearcut areas in northwestern Ontario and to evaluate the ... -
Relationship among physical and hydrological stream and drainage basin characteristics and riparian vegetation structure
(2000)The primary goal of this study was to examine the physical and biological structure of riparian zones along streams in the Boreal forest of Northwestern Ontario and to discover whether riparian structure was related to ... -
Sources of small-scale variation in headwater stream habitat and macroinvertebrate communities
(2009-06-04)The extent to which small stream habitats and communities are influenced by the surrounding terrestrial environment is a function of the linkage between aquatic and terrestrial systems. The strength of that linkage is ...