42 record(s) found with the tag "invertebrates" (multi-year projects are grouped):
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Insect Biodiversity and Biogeography along the Thelon River, NWT
Principal Investigator: Currie, Douglas C.
Licenced Year(s): 2002 2000
Summary: The primary focus of the study is the numbers and kinds of insects that live in the Thelon River at its valley. A previous study in 2000 on the Horton River revealed a number of species that are not represented in Alaska and the Yukon. Collections from t...

The effectiveness of a diversion channel in providing fish habitat in NWT barrenlands
Principal Investigator: Jones, Nicholas
Licenced Year(s): 2001 2000 1999
Summary: Recently BHP Diamonds Canada has "dewatered" a number of lakes and created a diversion channel to re-route water around two open pit mines. The purpose of this study is to compare the effectiveness of the diversion canal as habitat before and after it is enhanced with fish habitat structures and also in relation to natural streams in the area. In early spring Arctic grayling will be captured in we...

Human and chemical ecology of arctic pathways taken by marine pollutants
Principal Investigator: Kassam, Karim-Aly S.
Licenced Year(s): 1999
Summary: Research will begin with the development of a database of existing information concerning impact of pollutants on the human ecology. An interview protocol will be developed for collecting indigenous knowledge on the impact of chemical pollutants. By training two researchers in each community surveyed, local indigenous knowledge will be collected through participation by community based staff. All ...

Butterfly fauna of the western Northwest Territories
Principal Investigator: Nakamura, Ichiro
Licenced Year(s): 1997
Summary: Butterflies will be observed and some specimens collected along the Dempster Highway in the western part of the NWT for several days in late June to early July. The areas to be covered will be limited to within a few miles from the road. Sample specimens will be secured to provide definitive identification and as representatives of the local populations. However, no unnecessary specimens will b...

Chemical Investigation of Marine Invertebrates from Husky Lakes
Principal Investigator: Carolsfeld, Joachim
Licenced Year(s): 1996
Summary: The researchers propose to collect invertebrates, algae and microorganisms with the use of SCUBA, plankton nets, bottom dredges, and intertidal collection. These samples will be sorted and frozen for later analysis in Halifax. The researchers wish to collect samples in about 25 sites, ranging from the southern tip of Liverpool Bay to south of Saunatuk. All collections will take place from small...

Persistent organic contaminants in the Great Slave Lake ecosystem.
Principal Investigator: Evans, Marlene S
Licenced Year(s): 1995 1994
Summary: The researchers will collect samples of sediments from the bottom of Great Slave Lake at sites near Fort Resolution and Lutsel K'e. This data will allow a better understanding of how fast sediments are deposited on the lake bottom in various regions. Researchers will also collect invertebrates and fish samples as part of an overall study of contaminants in the lake's ecosystem....

The Effects of UV-B Radiation On the Community of Arctic Lakes
Principal Investigator: Perin, Sofia
Licenced Year(s): 1994
Summary: This study will be done by setting up 6 enclosures in a lake or pond. Two enclosures will be exposed to reduced UV-B levels, two other enclosures will be exposed to ambient UV-B levels, and finally two other enclosures will be exposed to enhanced UV-B levels. Regular measurements will be made of algae and invertebrates biomass, species composition, and pigment; and of algal photosynthesis and end ...

Study of potential environmental impacts of waste materials in the marine waters near Cambridge Bay
Principal Investigator: Johnston, Laura
Licenced Year(s): 1993
Summary: Samples of sediment, water and different marine species such as fish, marine invertebrates (including sea urchins, clams and crabs), and microscopic organisms will be collected by divers from the underwater dumpsite in Cambridge Bay. These samples will be assessed for contaminants such as heavy metals and PCB's. The study is primarily being conducted to determine if the waste materials of the du...

Canol Pipeline environmental study
Principal Investigator: Reimer, K.J.
Licenced Year(s): 1993
Summary: The Environmental Sciences Group has been requested by Indian and Northern Affairs to conduct an environmental study of the Canol Pipeline. The study will identify contaminants (especially hydrocarbons) along the Canol Trail associated with the construction and startup of the pipeline. Where spills are evident, data will be collected on soils, water, vegetation and stream invertebrates to determ...

Metabolism of Arctic Organisms
Principal Investigator: Ballantyne, J.S.
Licenced Year(s): 1992
Summary: The research will determine the kinds of fats of Arctic fish and invertebrates found in various parts of the body (blood, liver, kidney, muscle, brain) and how they change when the fish move from freshwater into seawater or when the temperature changes. The studies will determine how Arctic animals are different from similar animals found in warmer climates and how Arctic animals are adapted to Ar...