14 record(s) found with the tag "water chemistry" (multi-year projects are grouped):
Not seeing the results you want? Tryadvanced search.

Understanding of distribution and sources of polybrominated diphenyl ethers in the north and east of Great Slave Lake and coastal regions
Principal Investigator: Chen, Bing
Licensed Year(s): 2024 2023
Summary: This licence has been issued for the scientific research application No. 5820. The proposed project will evaluate the temporal and spatial distribution of Polybrominated Diphenyl Ethers (PBDE) in the water and sediment of Great Slave Lake and surrounding communities, landfills, drinking water, and industries to identify the source of PBDEs. The concentration and distribution of PBDEs will b...


Nutrient and contaminant status in the wetlands of the Slave River Delta
Principal Investigator: Doig, Lorne
Licensed Year(s): 2021
Summary: This licence has been issued for the scientific research application No.4988. The objectives of this project are to determine: 1) From the outer Slave River Delta (SRD) (river-water dominated) to the apex of the SRD (runoff dominated), what the current status of nutrients and contaminants in SRD wetland ecosystems are; 2) How trace elements (e.g., mercury) move through SRD wetland food webs; an...


An investigation of arsenic speciation and toxicity in Baker Creek sediments from Giant Mine in the Northwest Territories, Canada
Principal Investigator: Nash, Tyler J
Licensed Year(s): 2012
Summary: The objective of this research project is to assess the sediment quality of Baker Creek. This will be achieved by analyzing factors influencing arsenic mobility from sediments to overlying water and assessing the toxicology of the sediments using exposure tests on indicator organisms. Core samples of Baker Creek sediments will be taken by the researchers using aluminum pipes driven into the gro...


Enhanced Investigations of the Factors affecting Long-term Contaminant Trends in Predatory Fish in Great Slave Lake, Northwest Territories
Principal Investigator: Evans, Marlene S.
Licensed Year(s): 2010 2009
Summary: For several years, studies have been conducted to find out if contaminant levels are changing in lake trout and burbot in Great Slave Lake. The researchers have been seeing some changes with mercury levels increasing and HCH levels declining in these fish. However, there have been other changes in the fish, especially lake trout which appear to contain less fat and to be feeding closer to shore th...


Investigation of factors affecting high mercury levels in fish in lakes in the Mackenzie River Basin (2002-2003)
Principal Investigator: Evans, Marlene S.
Licensed Year(s): 2003 1998
Summary: This study is based on earlier research conducted by the Department of Fisheries and Oceans which found that fish in many lakes in the Mackenzie River Basin had high mercury concentrations. This study examines the environment in which the fish live in o...


Canadian Arctic Shelf Exchange Study (CASES)
Principal Investigator: Fortier, Louis
Licensed Year(s): 2002
Summary: Given the possibility of a sustained reduction of the ice cover of Arctic shelves in response to climate warming, the Canadian Arctic Shelf Exchange Study (CASES), a major international effort under Canadian leadership, aims at understanding the biogeoch...


Canadian Arctic Shelf Exchange Study (CASES)
Principal Investigator: Fortier, Louis
Licensed Year(s): 2004 2003 2002
Summary: Given the possibility of a sustained reduction of the ice cover of Arctic shelves in response to climate warming, the Canadian Arctic Shelf Exchange Study (CASES), a major international effort under Canadian leadership, aims at understanding the biogeoch...


Investigating the Importance of Water Chemistry on Mercury Concentration in Fish from Mackenzie River Basin Lakes
Principal Investigator: Stephens, Glen
Licensed Year(s): 1998
Summary: The objective of the work is to characterize the water chemistry of lakes with reported elevated concentrations of mercury in fish from the Mackenzie River Valley, which were sampled as part of the Department of Fisheries & Oceans (DFO) fisheries management plan. This would help to establish if there is any relationship between basic lake water chemistry and mercury levels in fish which could be u...


Amituk Lake: Trace Organic Contaminants in an Arctic Aquatic System
Principal Investigator: Semkin, Raymond
Licensed Year(s): 1994
Summary: Amituk Lake and the east coast of Cornwallis Island is a research site for documenting the occurence and movement of organic and inorganic contminants from winter snowpack into a freshwater lake. Numerous tests for snowpack water content and chemistry are carried out before snowmelt begins. Chemical and flow measurements are also taken at 6 streams and the lake outlet....


Environmental study of the aquatic resources of the Thonokeid Lake area
Principal Investigator: Couture, Richard
Licensed Year(s): 1994 1994 1993
Summary: The researchers will continue their study on fish and other aquatic organisms found in lakes and streams of the Thonokeid Lake area. Muscle and liver tissues of fish will be taken in order to assess levels of heavy metals. In addition, water chemistry data will be collected....


TOTAL PAGES: 2