Spatial and long-term trends in persistent organic contaminants and metals in lake trout and burbot from the Northwest Territories

Regions: South Slave Region

Tags: contaminants, biology, fish, metals

Principal Investigator: Evans, Marlene (38)
Licence Number: 14950
Organization: Environment Canada
Licenced Year(s): 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004
Issued: Jul 22, 2011
Project Team: Derek Muir (Environment Canada), Jonathan Keating (Environment Canada), Patrick Simon (Deninu Kue First Nation), Tsatsiye Catholique (Lutsel K'e Dene First Nation), Shawn Buckley (Hay River)

Objective(s): To investigate whether contaminant levels are changing in fish in the Northwest Territories with a focus on Great Slave Lake.

Project Description: The objective of this study is to investigate whether contaminant levels are changing in fish in the Northwest Territories with a focus on Great Slave Lake which we have been studying since the early 1990s. Lake trout will be collected from Great Slave Lake (Hay River area and Lutsel K’e area). Burbot will also be collected from the Lutsel K’e and Fort Resolution areas of Great Slave Lake, and northern pike from the Fort Resolution area of Great Slave Lake.

Twenty burbot and 20 northern pike will be collected from the West Basin of Great Slave Lake (near Slave River) by community members from Fort Resolution during their normal subsistence fishing activities (gill net or angling). Twenty lake trout will be collected from the West Basin of Great Slave Lake by the Hay River commercial fishery (gill net). Twenty lake trout and 20 burbot will be collected from the East Arm of Great Slave Lake by community members from Lutsel K’e during their normal subsistence fishing activities (gill net or angling).

Community members (chosen by the local Renewable Resources Council) will be hired to collect fish for this study. Communities will be kept informed of the progress of the study by the Principle Investigator.

The fieldwork for this study will be conducted from July 22, 2011 to December 31, 2011.