Search the archive

Find documents by name, keyword, or question across the IEMA Ekati archive.

Showing only documents tagged Fish Habitat.

220 documents · Page 4 of 11

Sort

Commentary on the Management of Fish Habitat in Northern Canada: Information Requirements and Policy Considerations Regarding Diamond, Oil Sands and Placer Mining, Summary Report, Canadian Technical Report of Fisheries and Aquatic Sciences 2607 (DFO, 2005)
~2005Report
Approximate date — inferred from filename
This technical report examines fish habitat management in northern Canada with focus on diamond, oil sands, and placer mining operations, identifying critical knowledge gaps and policy considerations needed to comply with the Fisheries Act and achieve 'no net loss' of fish habitat productive capacity. The report documents that 70 lakes have been or are proposed to be eliminated for mining use since the 1950s, with 62% approved in the last decade, and recommends integrated research, monitoring, and collaborative management approaches to address deficiencies in Arctic aquatic ecology understanding.
Aquatics Fish Habitat Monitoring Water Quality Closure & Reclamation
Commentary on the Management of Fish Habitat in Northern Canada, Information Requirements and Policy Considerations Regarding Diamond, Oil Sands and Placer Mining, Literature Search (DFO, 2005)
~2005Report
Approximate date — inferred from filename
A comprehensive literature search and review of fish biology, ecology, and habitat in northern Canada, focusing on seven fish species in the Lac de Gras watershed of the Northwest Territories where diamond mining occurs, with emphasis on information requirements for assessing impacts of mining on fish habitat under Canada's Fisheries Act. The document details search strategies across multiple databases and retrieves over 3,000 scientific references related to fish species biology, watershed ecology, and habitat compensation strategies applicable to Arctic mining operations.
Fish Habitat Aquatics Development Plans Regulatory
Commentary on the Management of Fish Habitat in Northern Canada: Information Requirements and Policy Considerations Regarding Diamond, Oil Sands and Placer Mining, Appendix (DFO, 2005)
~2005Report
Approximate date — inferred from filename
This 2005 Canadian Technical Report documents an extensive consultation and literature review on the management of fish habitat in northern Canada regarding diamond, oil sands, and placer mining activities. The appendix contains detailed comments from 51 consultants including mining industry representatives, DFO habitat managers, scientists, and other stakeholders, along with information on lake elimination and habitat compensation measures across Canada since the 1950s, with emphasis on information gaps and management recommendations.
Fish Habitat Aquatics Development Plans Regulatory
Panda Diversion Channel Monitoring Program, Volume I, Technical Report, Draft for Public Review, Ekati Diamond Mine (BHP Billiton, December 2004)
1 December 2004Report
This technical report documents the sixth year (2004) of monitoring the Panda Diversion Channel (PDC) at Ekati Diamond Mine to assess its effectiveness as compensatory fish habitat. The program measured physical parameters (flows, temperatures, habitat), biological communities (periphyton, benthic invertebrates), and fish populations, particularly Arctic grayling spawning, rearing, and outmigration, comparing results with reference streams Pigeon and Polar-Vulture.
Fish Habitat Aquatic Effects Monitoring (AEMP)Monitoring Closure & Reclamation
Partnership Opportunity, Second North American Lake Trout Symposium, Yellowknife (Organizing Committee, September 2004)
28 September 2004Letter
Letter from Bruce Hanna of the Organizing Committee inviting the Independent Monitoring Agency to become a partner in the Second North American Lake Trout Symposium planned for Yellowknife in August 2005, with details on three funding partnership levels and associated recognition benefits.
Correspondence Fish Habitat Aquatics
Staff Changes & Contact List, Western Arctic Area (DFO, August 2004)
24 August 2004Memo
Memorandum from Ron Allen, Area Director of Fisheries and Oceans Canada Western Arctic Area, announcing staff changes and introducing James Boraski as the new District Manager for Inuvik, effective July 19, 2004, along with complete contact listings for staff across Yellowknife, Hay River, and Inuvik offices.
Correspondence Fish Habitat Regulatory
Adaptive Management, A Spoonful of Rigour Helps the Uncertainty Go Down (Murray & Marmorek, August 2004)
23 August 2004Report
This conference paper explains adaptive management as a rigorous approach to environmental management that explicitly addresses uncertainty through designed experiments, monitoring, and iterative learning, with three case studies demonstrating application to habitat restoration in the Columbia River Basin, ecosystem restoration in the Trinity River in California, and invasive species management in Garry oak ecosystems in British Columbia.
Monitoring Closure & Reclamation Aquatics Wildlife
Acute and Chronic Toxicity of Nitrate to Early Life Stages of Lake Whitefish and Lake Trout, Draft Report (BHP Billiton, June 2004)
25 June 2004Report
Laboratory toxicity study examining acute and chronic effects of nitrate exposure on early life stages (embryos, alevins, swim-up fry) of lake whitefish and lake trout collected from the Ekati Diamond Mine region and Lake Simcoe, Ontario. The study determined NOECs, LOECs, and LC50 values for nitrate and found that lake whitefish were more sensitive to chronic nitrate exposure than lake trout, with early developmental stages showing sublethal effects at concentrations as low as 6.25–25 mg/L NO3-N.
Aquatics Water Quality Fish Habitat Development Plans
Evaluation of the Potential Effects on Fish Habitat of Additional Extraction of Water from Grizzly Lake, EKATI Diamond Mine (BHP Billiton, June 2004)
1 June 2004Report
This study evaluates the potential effects on fish habitat of extracting an additional 50,000 m³/year of water from Grizzly Lake at the EKATI Diamond Mine, using a mass balance model under various climatic scenarios. The analysis concludes that while increased extraction could cause significant degradation of summer fish habitat in Grizzly Stream under extreme dry conditions, practical effects would be negligible due to the stream's already poor habitat quality, and impacts to the Panda Diversion Channel and Grizzly Lake itself would be minimal.
Fish Habitat Aquatics Water Quality Regulatory Development Plans
Matthews Lake and Area Fish Habitat Restoration Program, 2003 to 2004 Project Documents (BHP Billiton, April 2004)
2004Report
Matthews Lake and Area Fish Habitat Restoration Program — 2003 Site Baseline Assessment, April 2004, prepared by Dillon Consulting Limited for the Department of Fisheries and Oceans (DFO Fish Habitat Management, Yellowknife) and submitted to Carole Mills (Independent Environmental Monitoring Agency), File 03-1851-2000. Documents the November 2003 Pre-Construction Workshop with regulatory agencies and stakeholders, references aquatic habitat assessment methodology (Bain & Stevenson 1999), stream dimensions at road crossings (7 m wide / 10 m long / 0.1 m avg depth, 0.03 m/s velocity, 10% fine / 50% gravel / 30% cobble / 10% boulder substrate), and excavation plans for connecting Sandy Lake to Ponds A, B, C and Matthews Lake.
Fish Habitat Aquatics Monitoring
Aquatic Effects Monitoring Program (AEMP) 2003 Results (Independent Environmental Monitoring Agency, March 2004)
16 March 2004Presentation
This workshop presentation document from the Independent Environmental Monitoring Agency outlines findings from the 2003 Aquatic Effects Monitoring Program (AEMP) at Ekati Diamond Mine, reporting on water quality, fish, and aquatic life changes in the Koala and King-Cujo watersheds. The document shows that mining activities cause small, localized increases in several water quality parameters, though contaminant levels remain generally below CCME guidelines for aquatic life protection.
Aquatic Effects Monitoring (AEMP)Aquatics Water Quality
Studies in Long Lake, 2003 (Independent Environmental Monitoring Agency, March 2004)
2004Presentation
Independent Environmental Monitoring Agency (IEMA) workshop presentation: "Studies in Long Lake — 2003" presented at the Review of Ekati's Environmental Monitoring and Management Programs Workshop, March 16-17 2004. Includes Long Lake Containment Facility (LLCF) Cells C/D/E descriptions, Study #3 on Long Lake water quality prediction model update, evaluation of Fox Pit water discharge to Cell D vs Cell C effect on Cell E water quality, Cumulative Effects Monitoring (CCME water-licence variables) results, Panda Diversion Channel (PDC) facts (3.3 km long, 2-10 m wide between lakes) outletting into Kodiak Lake, and Arctic grayling spawning study (PDC repeat spawners male/female ratio, female survival).
Aquatics Water Quality Monitoring
Pre-Construction Workshop Report, Matthews Lake and Area Fish Habitat Restoration and Enhancement Project (BHP Billiton, January 2004)
27 February 2004Report
This pre-construction workshop report documents a November 28, 2003 meeting in Yellowknife where representatives from Indigenous communities, government agencies, and consultants discussed baseline assessment results and prioritized options for restoring and enhancing fish habitats in the Matthews Lake area degraded by historical mining activities (Salmita and Tundra Mill mines). The workshop identified that community priorities favor fixing obvious man-made problems (fuel drums, debris) over enhancing natural habitats, with plans to proceed toward implementation in summer 2004 following further community consultation.
Fish Habitat Aquatics Closure & Reclamation
Panda Diversion Channel Monitoring Program, Draft, Ekati Diamond Mine (BHP Billiton, December 2003)
1 December 2003Report
This report documents the sixth year (2003) of monitoring fish populations in the Panda Diversion Channel (PDC), a man-made compensatory stream constructed in 1998 at the Ekati Diamond Mine. The study measured the productivity of the PDC relative to two reference streams (Pigeon and Polar-Vulture) by monitoring Arctic grayling spawning success, fry emergence, growth rates, survival, and outmigration, revealing that while the PDC supports high spawner densities, fry survival and growth rates were lower than reference streams due to incomplete ecosystem seasoning and density-dependent effects.
Aquatics Fish Habitat Aquatic Effects Monitoring (AEMP)Closure & Reclamation
Matthews Lake and Area Fish Habitat Restoration Program, 2003 Site Baseline Assessment DRAFT (BHP Billiton, November 2003)
1 November 2003Report
This 2003 baseline assessment report documents fish habitat conditions at Matthews Lake and surrounding waterbodies near the Ekati Diamond Mine, as part of a Fish Habitat Compensation Agreement between BHP Billiton Diamonds Inc. and Fisheries and Oceans Canada. The study assessed fish species distribution, abundance, and habitat utilization across lakes, streams, and ponds to establish baseline conditions prior to planned habitat restoration and enhancement activities.
Fish Habitat Aquatics Monitoring Water Quality
Survey of Fish Populations in Cell E of the Long Lake Containment Facility, Ekati Diamond Mine (BHP Billiton, October 2003)
1 October 2003Report
This report documents a fish population survey of Cell E of the Long Lake Containment Facility at the Ekati Diamond Mine conducted in August 2003, comparing 22 biological variables with pre-development conditions from 1994 and 1997 to assess the facility's impacts on fish communities. The survey found that most fish population characteristics showed no significant change, with higher catch rates of adult fish but evidence of reduced juvenile recruitment possibly due to loss of spawning habitat caused by dyke construction.
Aquatics Fish Habitat Aquatic Effects Monitoring (AEMP)
Working Near Water, Considerations for Fish and Fish Habitat, Reference and Workshop Manual, Northwest Territories (DFO, April 2003)
1 April 2003Report
A comprehensive reference and workshop manual for the Department of Fisheries and Oceans outlining considerations for protecting fish and fish habitat in the Northwest Territories during development activities. The manual covers regulatory requirements under the Fisheries Act, habitat components, mitigation strategies for construction near water, and spill response procedures.
Fish Habitat Aquatics Regulatory Wastewater
Salmon as a Bioassay Model of Effects of Total Dissolved Solids (Juneau Center for Fisheries and Ocean Sciences, 2003)
3 February 2003Report
This final report describes a comprehensive study of the lethal and sublethal effects of total dissolved solids (TDS) on salmonid embryos and juveniles, including acute and chronic exposure bioassays across multiple species (coho, chum, king, pink, steelhead salmon, and arctic char). The research found that fertilization was the most sensitive developmental stage to TDS exposure, with significant effects observed at concentrations as low as 250 ppm, and that different salmonid species exhibited varying sensitivities to TDS.
Aquatics Water Quality Fish Habitat
Panda Diversion Channel Monitoring Program Technical Report, Ekati Diamond Mine (BHP Billiton, January 2003)
1 January 2003Report
This technical report presents findings from the 2002 Panda Diversion Channel (PDC) Monitoring Program at the Ekati Diamond Mine, documenting hydrology, fish communities, habitat stability, and benthic and periphyton communities in the channel designed to compensate for habitat lost to mining operations. The 2002 monitoring year was characterized by low spring precipitation and peak flows, yet Arctic grayling continued to extensively utilize the PDC for spawning and migration with the second-highest numbers recorded since monitoring began in 1998.
Aquatics Fish Habitat Monitoring
Aquatic Effects Monitoring Program (AEMP) Technical Report, Ekati Diamond Mine (BHP Billiton, December 2002)
1 December 2002Report
The 2002 Aquatic Effects Monitoring Program technical report evaluates baseline and post-baseline monitoring data from the Koala and King-Cujo watersheds to assess impacts of the Ekati Diamond Mine on aquatic environments. The report finds that while mine activities caused localized changes in water quality parameters within both watersheds, no major adverse ecological effects were observed in biological communities, though some elevated nutrient levels and phytoplankton biomass changes were detected in specific receiving lakes.
Aquatic Effects Monitoring (AEMP)Aquatics Water Quality

Tags

220 documents · Page 4 of 11