111 record(s) found in the location "Dehcho Region" (multi-year projects are grouped):
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Fisheries & Vegetation analysis for the Range Oil Fort Liard P66 Pipeline Project
Principal Investigator: Machtans, Hillary
Licensed Year(s): 1998
Summary: Fisheries and vegetation field work will begin in June 1998. Three small streams north of Fort Liard will be surveyed to determine if fish are present or absent and to assess the fish habitat in each creek. Two of these creeks are tributaries to the Liard River and are located near the P66 well site. Fisherman Creek, the tributary draining into Fisherman Lake from the Liard Range will also be surv...


Habitat Utilization and Fish Community Structure in the Snare River.
Principal Investigator: Reed, Shawna
Licensed Year(s): 1994
Summary: In this study fish presence/absence and/or densities will be obtained by electrofishing representative habitat and the setting of baited minnow traps. When these two methods are not practical gill nets, trap nets, and/or beach seines will be employed. Each fish caught will be identified, measured, sexed and condition will be noted. Ten specimens of each species from each site (up to 10) will be...


Prescribed Fire and Wildlife Habitat Enhancement
Principal Investigator: De Groot, Bill
Licensed Year(s): 1994
Summary: Plant samples will be collected in the field by the researcher after they become dormat for treatment in a lab experiment. Burning treatments will be conducted in the lab where environmental growing conditions and the plant physiological state at the time of the treatment can be better controled. This will be done in order to model the effects of fire on two types of shrubs....


Bear Habitat Use Research Study
Principal Investigator: Ashton, Sandra
Licensed Year(s): 1995 1994
Summary: The researcher will identify plant types used by the bears and describe the plant phenology (potential bear foods) in the area. These observations will be recorded. A literature review of related research will also be conducted. This research will be done in order to determine bear feeding ecology....


Environmental Studies of the Aquatic Resources in the Prairie Creek Area.
Principal Investigator: Reed, Shawna
Licensed Year(s): 1994
Summary: In project area creeks & streams, fish presence/absence and/ or densities will be obtained by electrofishing representative habitat & the setting of baited minnow traps. Each fish caught will be identified, measured, weighed & sexed, & condition will be noted. Furthermore, in order to assess background tissue metal levels, ten specimens of each species must be sacrificed in order to obtain the req...


Modelling the establishment and growth of post-fire tree seedlings
Principal Investigator: Gal, Ruth Ann
Licensed Year(s): 1993 1992
Summary: As a result of global warming (which results from increased amounts of carbon dioxide in the atmosphere), it is suggested that the number of forest fires and the amount of area burned may increase in the northern boreal forests. The types of trees that grow first in these burned areas may be different from those that would have grown in if the climate was cooler. I will collect data at burn site...


Fire, carbon budget and climate change
Principal Investigator: Wein, Ross
Licensed Year(s): 1993
Summary: The research team will be examining areas of permafrost south of Inuvik and near Hay River in order to assess the rate of loss of permafrost as a result of the warming in climate over the past twenty years. The loss in permafrost may be speeded up following a local fire. The wetlands that replace these areas of permafrost could lead to a greater production of methane (one of the gases that contr...


Genetics and postglacial dispersal of lake trout (Salvelinus namaycush) and arctic charr (S. alpinus) in the western arctic
Principal Investigator: Wilson, Chris C.
Licensed Year(s): 1993 1992 1991 1990
Summary: The researcher will be collecting lake trout and/or arctic charr from lakes in the vicinities of Hay River, Inuvik, Paulatuk and Tuktoyaktuk in order to examine the distributions of these species. Samples of liver and muscle tissue will be collected from these fish for genetic analyses: this research will provide information about how different populations are related to each other (i.e., their o...


Implications of climatic change on water-based recreational activities in Nahanni and Jasper National Parks
Principal Investigator: Staple, Tamara
Licensed Year(s): 1993
Summary: The research in Nahanni National Park includes the setting up of programs to monitor water depth and vegetational changes along the river. Changes in water depth influence the ability of navigating the river, especially in areas of rapids, and has implications on the level of expertise required by visitors travelling the river. Monitoring vegetation along the river will provide information about...


Paleobiology of Reef Faunas in Middle-Upper Devonian Strata in the Hay River Area
Principal Investigator: Johnston, Paul A.
Licensed Year(s): 1992
Summary: The researcher and his team will look for fossils of reef animals. Notes will be taken on the growth positions of the reef animals, and about 400 kg of fossils will be collected by hand or with hammers and chisels from various localities. The fossils will be brought back to the Royal Tyrrell Museum and used to make molds. Casts from these molds will be used to make an exhibit showing a three-di...


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