16 record(s) found with the tag "fish" (multi-year projects are grouped):
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Metal levels in large-bodied fishes near impacted lakes near Yellowknife, NWT
Principal Investigator: Somers, Gila L
Licenced Year(s): 2016
Summary: The objectives of this project are to collect fish tissue samples from species of subsistence importance to 1) establish a long-term community monitoring program for contaminants in fish; and 2) to monitor potential spatial and temporal trends in metal concentrations (including mercury) in fish tissues within the Yellowknife region. The data acquired will be added to existing and concurrently coll...


Monitoring of mercury, flame retardants and other chemicals in lake trout and cisco from Great Bear Lake
Principal Investigator: Evans, Marlene
Licenced Year(s): 2016 2015 2014 2013
Summary: This study is designed to find out whether contaminant levels are changing in fish (lake trout and cisco) in Great Bear Lake. The research team require fall-caught fish for this study. Twenty whole lake trout and 20 whole cisco of a range of sizes are required from Great Bear Lake. The fish will be frozen immediately after capture and shipped to Environment and Climate Change Canada (ECCC)-Sask...


Cumulative Impacts Monitoring of Aquatic Ecosystem Health of Yellowknife Bay, Great Slave Lake
Principal Investigator: Chételat, John
Licenced Year(s): 2015
Summary: The main objective of this study is to investigate the ecosystem health of Yellowknife Bay. We will address the following questions through a field study: 1) What is the quality of water and sediment in Yellowknife Bay (focusing on metals, nutrients and cyanobacteria)? 2) What are the main sources and transport pathways of metals accumulating in the food web of Yellowknife Bay? 3) How much of ...


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: Yellowknife Bay on Great Slave Lake is a water body of cultural, subsistence and recreational importance for the Yellowknives Dene First Nation (YKDFN) and residents of Yellowknife. The ecosystem health of Yellowknife Bay has been impacted by historical mining releases of metals (particularly arsenic), as well as long-range atmospheric transport of metals such as mercury from far-away human emissi...


Spatial and long-term trends in persistent organic contaminants and metals in lake trout and burbot from the Northwest Territories
Principal Investigator: Evans, Marlene
Licenced Year(s): 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004
Summary: The purpose of the study is to continue investigating whether contaminant levels are changing in fish in the Northwest Territories with a focus on Great Slave Lake which the research team has been studying since the early 1990s. The plan is to collect lake trout from Great Slave Lake (Hay River area and Lutsel K’e area). The research team also plans to collect burbot from the Lutsel K’e and Fort R...


Diavik Fish Palatability & Metals Program
Principal Investigator: English, Colleen J
Licenced Year(s): 2012 2009 2003
Summary: The purpose of the study is to have Aboriginal participation in monitoring programs at the Diavik site; to assess the quality of fish for eating – records of fish taste, smell and texture from fish caught in Lac de Gras; collection of fish tissue samples to analyze for metals concentrations; collection of fish otoliths to determine age of fish; focus on sampling fish of similar size/age in order t...


Contaminants in Fish in the Keith Arm of Great Bear Lake
Principal Investigator: Macdonald, Colin R
Licenced Year(s): 2012 2010 2009
Summary: This licence is being issued for the scientific research application no.1050. The objectives of this research are to: 1. collect 15 lake trout, 15 whitefish and 15 herring for analysis of metals, including mercury, radionuclides and organochlorine pesticides; 2. compare the levels of the compounds with the same species near the mines in the eastern part of Great Bear Lake. Fish will be colle...


Gahcho Kue (Kennady Lake) Baseline Limnology Program (2003)
Principal Investigator: McEachern, Laurie
Licenced Year(s): 2003 2002
Summary: To assist with current environmental management of the Kennady Lake or Gahcho Kue Project (an advanced mineral exploration property operated by DeBeers Canada Exploration Inc.), and to prepare for an assessment of environmental effects of potential futur...


Environmental Studies of the Aquatic Resources in the Prairie Creek Area.
Principal Investigator: Reed, Shawna
Licenced 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...


Environmental Study of the Aquatic Resources of the Thonokeid Lake Area
Principal Investigator: Couture, Richard
Licenced Year(s): 1994 1994 1993
Summary: Rescan Environmental Services Ltd. will continue their study on the types of fish and other aquatic organisms found in the Thonokeid Lake area. Data on species type as well as their age, abundance and habitat will be collected. In addition, muscle and liver tissue of fish will be collected in order to assess for the presence of heavy metal contaminants. This study will be summarized in an envir...


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