62 dossier(s) trouvé(s) portant l’étiquette "sediment quality" (les projets pluriannuels sont regroupés): Vous ne trouvez pas les résultats souhaités? Essayez la recherche avancée..
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...
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...
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...
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 ...
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...
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...
chercheur principal:Wiatzka, Gerd M Année(s) de permis:
2013
201220112010 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...
chercheur principal:Sibbald, Carey Année(s) de permis:
2012
2011201020092008 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 ...
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...
chercheur principal:Hoos, Rick Année(s) de permis:
2012
20092002 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...