21 record(s) found with the tag "aquatic invertebrates" (multi-year projects are grouped):
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Further Examination of the Bio- Magnification of Mercury within Fish Species of the Deh Cho and Their Varying Levels Among Lakes
Principal Investigator: Swanson, Heidi
Licenced Year(s): 2016 2016 2015 2014 2013
Summary: The objectives of this research project are: 1) to determine why fish mercury levels vary among lakes in the Dehcho region; 2) to identify best predictors of fish mercury levels; and, 3) to determine which fish have the lowest levels of mercury and highest levels of micro-nutrients and fatty acids. The methods for this project include two parts, first is the collection of food web data from eac...


Understanding the potential impact of rare earth elements in aquatic systems in the NWT
Principal Investigator: McGeer, Jim
Licenced Year(s): 2016 2015 2014
Summary: The objectives of this research are to evaluate the relative sensitivity of northern aquatic invertebrates and northern ecosystems in comparison to southern species and environments. The focus of comparisons is in relation to the toxicity of rare earth elements. Approximately 3 to 5 sites will be chosen for detailed samplings and examples could include (Pontoon Lake, Trappers Lake and Tibbitt L...


Assessment of the condition of freshwater streams in the South Nahanni watershed
Principal Investigator: Steedman, Audrey
Licenced Year(s): 2016
Summary: The main objectives of this research project are to determine if macroinvertebrate community structure and composition is changing over time in freshwater streams in the South Nahanni watershed; and, to determine whether mining activities degrade the health of streams in the South Nahanni Watershed and define zones of degradation due to mining activities. These test sites are downstream of mines. ...


Examination of distribution and density of juvenile Dolly Varden char in Fish Creek (Rat River)
Principal Investigator: Maier, Kris
Licenced Year(s): 2016 2015 2014
Summary: The research team seek to build on the 2014 success in monitoring habitats and using electrofishing to assess juvenile Dolly Varden occupancy. Specific objectives include: 1) to continue implementing a community-based monitoring program to monitor essential habitats; 2) to further delineate the spatial distribution of juvenile char in the Fish Creek watershed; and, 3) to establish a length at age ...


Gordon Lake Assessment Project
Principal Investigator: Doucet, Michael
Licenced Year(s): 2016 2015
Summary: The objective of this program is to determine the environmental and physical conditions at nine sites on Gordon Lake and potentially six Gordon Lake south sites. This will include the identification and quantification of environmental impacts in soil, sediment, surface water and groundwater, and the identification of any hazardous or non-hazardous materials. In addition, samples of biota (includin...


Effect of spring and summer temperatures on amphipod reproduction (Gammarus lacustris)
Principal Investigator: Messmer, David J
Licenced Year(s): 2012
Summary: To determine how spring and summer temperatures affect the abundance of the amphipod Gammarus lacustris throughout the summer. Over the 2 years of the experiment, the research team plans to use amphipods from 4 different sources over several latitudes (Montana-USA, St. Denis-SK, Yellowknife-NT, Inuvik, NT). Using this variety of geographic sources will allow us to assess if different populations...


Biological Studies of Waters Along the Proposed Mackenzie Gas Project Pipeline Route - Deh Cho and South Slave Settlement Regions
Principal Investigator: Evans, Marlene
Licenced Year(s): 2008
Summary: This licence is issued for the scientific research application #861. This study is designed to examine streams possibly affected by the proposed Mackenzie Gas Project pipeline and streams that can serve as future control/reference sites. The researcher will measure the following: nutrients and metals in stream water, stream water quality (DO, pH, conductivity, etc.), and aquatic invertebrate ab...


Biological Studies of Waters Along the Proposed Mackenzie Gas Project Pipeline Route - Gwich'in Settlement Region
Principal Investigator: Evans, Marlene
Licenced Year(s): 2009 2008 2007 2006
Summary: This licence is issued for the scientific research application # 835. This research will examine lakes possibly affected by the proposed Mackenzie Gas Project pipeline, and lakes that can serve as future control/reference sites. Measurements of nutrients and metals in lake water and sediments, lake water quality (DO, pH, conductivity, etc.), and benthic invertebrate and plankton abundance/spec...


Environmental Effects Monitoring for Miramar Con Mine Ltd. and Miramar Giant Mine Ltd.
Principal Investigator: Schryer, Richard
Licenced Year(s): 2004 2003
Summary: Under the new Metal Mining Effluent Regulations (Fisheries Act), an Environmental Effects Monitoring (EEM) program is required to determine the effects of mine effluent on fish and fish habitat. As part of the study, water quality and aquatic organism he...


2003 Aquatic Effects Monitoring Program
Principal Investigator: Teichreb, Chris
Licenced Year(s): 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003
Summary: This work will assess the effects that mining may have on the aquatic environment of lakes within the Ekati claimblock as part of BHP Billiton's Aquatic Effects Monitoring Program. Data to be collected includes water quality, sediment quality, physical l...


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