11 record(s) found with the tag "metal concentrations" (multi-year projects are grouped):
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Cumulative impacts of metal deposition in the NWT: Using lead isotopes to trace local, regional and long-range sources
Principal Investigator: Chételat, John
Licenced Year(s): 2014 2013
Summary: Recent increases in fish mercury concentrations in the Mackenzie River basin are an environmental and human health concern. In several cases, new fish consumption advisories have been released by the NWT Health and Social Services for some lakes in the NWT. It remains unclear what processes are driving these trends in metal bioaccumulation. Two dominant hypotheses are: 1) new sources of long-range...


Assessment of lake trout stocks in Great Bear Lake
Principal Investigator: Howland, Kimberly
Licenced Year(s): 2007 2006 2005
Summary: Two projects will be conducted on Great Bear Lake. The first is a continuation of the lake-wide assessment of the stock structure, population characteristics and movements of lake trout involving the collection of up-to-date data from Dease, Smith, McTavish and McVicar Arms (last assessed in the early 1980’s). Smith Arm (66° 20’ N, 123° 16’ W, 280 km from Deline) will be studied in 2006. Data has ...


2003 Port Radium: Phase 2 Environmental Studies
Principal Investigator: MacNeill, Scott W
Licenced Year(s): 2003
Summary: This 5-day sampling program will involve fisheries, aquatic, and vegetation studies at/in the vicinity of the abandoned Port Radium Mine site. Concentrations of five biologically significant metals (antimony, arsenic, lead, nickel and zinc) will be dete...


Diavik Diamond Mines Inc. 2001 Aquatic Effects Monitoring Program
Principal Investigator: Baker, Mike
Licenced Year(s): 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2005 2004 2003 2002 2001
Summary: The research team will visit 11 fixed monitoring stations by boat. At each station, water samples will be collected at mid-depth for full chemical analyses (major ions, trace metals and nutrients) using the lowest commercially available analytical detection limits. At each station, samples will also be collected for zooplankton and phytoplankton biomass. Samples for taxonomy will be archived. ...


2001 Baseline Slimy Sculpin/Lake Trout Habitat Utilization Studies
Principal Investigator: Madsen, Eric
Licenced Year(s): 2001 2000
Summary: The objective of this study is two fold: a) to collect slimy sculpin tissue samples for baseline metal analysis; b) to monitor seasonal lake trout habitat utilization in Lac de Gras using radio telemetry methodologies. Twenty-five Slimy sculpins will be collected using baited minnow traps and opportunistic underwater netting, using professional SCUBA divers if available. Samples will be sent to ap...


Baseline Limnology Program, Kennady Lake 2001 Environmental Program
Principal Investigator: Lawson, Nick
Licenced Year(s): 2001
Summary: The objectives of the research team are to collect baseline environmental information on the DeBeers Canada Exploration Ltd. project at Kennady Lake, to assist with the current environmental management of the property and prepare for an assessment of the environmental effects of potential future development of the site. Three field visits to Kennady Lake will be completed during the summer of 200...


Metal Levels in Fish from Lakes in the Dogrib Region Surrounding Rae Lakes
Principal Investigator: Stoddart, Melissa
Licenced Year(s): 2000
Summary: This project developed out of the community concern's about the effect that local contaminants may have on their health and well being. The objectives of the study are: to obtain baseline data on the level of metals in fish from lakes that are commonly used as traditional harvesting grounds; to deliver the results of the study to the community and address local contaminant concerns; to provide co...


Colomac Mine Abandonment and Restoration Plan - Fisheries Component
Principal Investigator: Thomas, Craig J
Licenced Year(s): 2000
Summary: This is a preliminary fisheries study to confirm 1989 baseline studies and to assist in impact assessment for Abandonment and Restoration (A & R) Plan for site closure. The researchers will conduct habitat assessments along drainages of Steeves Lake and Indin River (i.e. fish habitat mapping, assessment of habitat potential, 'spot check' confirmation of fish communities, the collection of instant...


The Use of Sediment Data as an Indicator of Aquatic Ecosystem Health in the Coppermine River Basin, NWT
Principal Investigator: Peramaki, Liisa
Licenced Year(s): 2000
Summary: This study will investigate the quality of aquatic sediment and evaluate its potential as an indicator of ecosystem health in the Coppermine River basin. Sediment cores will be collected by boat or float plane at Lac de Gras and Point Lake. The following field measurements will be recorded: water temperature and pH, and sediment colour, texture and pH. In addition, personal interviews will be c...


Water, Sediment and Fish Testing of Marian River system
Principal Investigator: Nevitt, Zabey
Licenced Year(s): 1999 1998
Summary: For many years the Dogrib have trapped and fished in and around the Marian River. There are concerns that contaminants are entering the river system. Some of the concerns include: effects on health from eating fish and effects on heath from drinking water. Field collection will take place over two days. The team will travel by canoe from Rae. Seven fish will be caught by members of the community f...


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