62 dossier(s) trouvé(s) portant l’étiquette "sediment quality" (les projets pluriannuels sont regroupés):
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Hydrological and contaminant studies in the Marian Watershed, NWT, to enhance community-based cumulative effects monitoring
chercheur principal: Wolfe, Brent BBW
Année(s) de permis: 2016
Résumé: While water and sediment quality monitoring in areas of industrial developments is an integral part of water management programs to ensure protection of ecosystems, absence of long-term measurements can make it challenging to define reference conditions effectively. As a contribution to the Marian Watershed Stewardship Program (MWSP), this research uses paleolimnological approaches to establish ba...


Characterization of arsenic species in lake sediments surrounding Giant Mine, NWT.
chercheur principal: Van Den Berghe, Martin
Année(s) de permis: 2016 2015
Résumé: The purpose of this study is to determine whether the arsenic present in regional lake sediments is of natural or anthropogenic origin, and whether these lakes act as a sink (capture) or a source (release) of arsenic in the overlying lake waters. By evaluating the relative stability of arsenic species in these different chemical media, the research team may establish the long term trends of arseni...


NATCL - Cantung Mine 2015 Environmental Effects Monitoring
chercheur principal: Carson, Richard J
Année(s) de permis: 2017 2015
Résumé: The objectives are to evaluate if there are differences in biological parameters among study sites and between years of the Environmental Effects Monitoring study are still present and whether any differences are the result of current mining practices, historical mining practices, or a combination of the two. The design will include studies on fish (non-lethal sampling of slimy sculpin), benthi...


Cumulative Impacts Monitoring of Aquatic Ecosystem Health of Yellowknife Bay, Great Slave Lake
chercheur principal: Chételat, John
Année(s) de permis: 2015
Résumé: 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
chercheur principal: Chételat, John
Année(s) de permis: 2014 2013
Résumé: 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...


Marian Watershed Community-Based Aquatic Effects Monitoring Program
chercheur principal: Garner, Kerri
Année(s) de permis: 2013
Résumé: The Tlicho Lands Moratorium was lifted in June 2013, and development pressure is expected to increase on Tlicho Lands. As Tlicho Lands are in relatively pristine condition, the intent of this study is to begin to collect baseline data at sites prioritized by community members away from specific project footprints in order to analyze the cumulative impacts of development, climate change, and increa...


Great Slave Lake Area Mines: 2013 Sampling Program
chercheur principal: Wiatzka, Gerd M
Année(s) de permis: 2013 2012 2011 2010
Résumé: The objective of the 2013 Great Slave Lake Mines Sampling Program is to assist Aboriginal And Northern Development Canada-Contaminants And Remediation Directorate (AANDC-CARD) with its ongoing work to clean up abandoned mine sites across the Northwest Territories. The program aims to collect additional environmental data which will be used to confirm current site conditions and to assist with fina...


2012 Baseline Aquatic Program for Avalon Rare Metals Inc. Proposed Thor Lake Rare Earth Element Project
chercheur principal: Sibbald, Carey
Année(s) de permis: 2012 2011 2010 2009 2008
Résumé: The objective of the 2012 Aquatics program is to continue baseline data collection to further characterize the baseline water and sediment quality and aquatic communities at specific lakes within the Thor Lake area and Avalon's Thor Lake Rare Earth Elements Project footprint. Water, sediment and aquatic organisms will be collected at up to 11 stations (10 lakes) within the Thor Lake area. Most ...


Giant Mine Phase 4 Environmental Effects Monitoring
chercheur principal: Harris, Katherine M.
Année(s) de permis: 2012 2010
Résumé: The objective of this study is to examine the health of two small-bodied fish species (Slimy Sculpin and Ninespine Stickleback) exposed to treated effluent from Giant Mine. Data collected during this study will be assessed to determine if there are treated effluent related effects. The study will be conducted within the exposure areas (Baker Creek and Yellowknife Bay) and the reference areas (Yell...


Aquatic Environmental Effects Monitoring - Flat River at Cantung Mine
chercheur principal: Hoos, Rick
Année(s) de permis: 2012 2009 2002
Résumé: The objectives of this research are: (1) to determine length, weight, and general condition of 100 fish and tissue analysis of not more than 10 fish (Slimy Sculpin- Cottus cognatus) per site at five site locations in the Flat River: two locations upstream of the CanTung mine site, one adjacent to the mine site and at two locations downstream of the mine site; and, (2) to determine sediment and wa...


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