246 Works

Assessment of percent ectomycorrhizal colonization of plant roots from randomly selected cores taken in Long-term ecological research (LTER) soil warming and fertilization plots.

Suzanne Simard, Julie R. Deslippe, , & William Mohn
In the summer of 2007, we collected soils from treatment plots that are maintained as part of the Arctic Long-term Ecological Research (LTER) site at Toolik Lake, AK (68o38'N, 149o34'W, elevation 760m), since 1989. Treatments include warming by greenhouses and fertilization (10 g m-2 year-1 N as NH4NO3; and 5 g m-2 year-1 P as Ca P) in a factorial design. Three replicate soil cores were taken from each tratment plot. Plant roots were obtained...

Preliminary evaluation of a qPCR for Toxplasma DNA in meat, an ELISA and agglutination test for anti-Toxoplasma antibodies in serum, and filter strips for field blood collection, using samples collected from northern wildlife between 2006 and 2010

Nunavik Research Center Manon Simard, Canadian Food Inspection Agency Alvin Gajadhar, University Of Guelph Andria Jones, Department Of Environment Brett Elkin, University Of Guelph Erica Pufall, Canadian Food Inspection Agency Lorry Forbes, DFO Ole Nielsen & University Of British Columbia Tanya Brown
The data set includes sample identification, species, collection location (described using one or more of the following: name of a prominent geographic feature, nearest community, latitude and longitude), date of collection, date of testing, age, sex, sample type, results. Protocols are described and consist of a qPCR to detect Toxoplasma DNA in meat, a multispecies ELISA using a protein A/G conjugate and a commercial agglutination test kit (MAT) - both to detect anti-Toxoplasma antibodies in...

GEOTRACES: Multi-tracer investigation of the effect of climate change on nutrient and carbon cycles in the Arctic Ocean

Roger Francois, , , , , , , &
Our sampling program took place from August 27, 2009 through September 12, 2009. It was part of Leg 3a of the 2009 CCGS Amundsen Expedition in the Arctic Ocean (ArcticNet 0903). Sampling started in the Mackenzie River delta and continued into the Beaufort Sea (Shelf, slope and deep Canada Basin). Various measurements (temperature, salinity, nutrients, alkalinity, pH, primary production, bacterial production) and sampling (seawater, marine particles) were conducted at 10 stations. Underway measurements (temperature, salinity,...

The Inuit Health Survey: Health in Transition and Resiliency

Grace Egeland, Kue Young, Isaac Harry Sobol, Geraldine Osborne, Laurie H.M. Chan, Eric Dewailly, Hope Weiler, Harriet V. Kuhnlein & Laura Arbour
The Inuit Health Survey represents a cross-sectional study design. Data collection was performed with the assistance of an ice-breaker that is part of the Canadian Coast Guard Ship fleet. The ship visited 18 communities in the Eastern Arctic in 2007, and 4 communities in Inuvialuit, 6 in Nunavut, and 5 in Nunatsiavut in 2008. The research used 4 separate crews: 3 land-based teams and 1 ship-based team. The land teams visited the hamlets prior to...

Documenting traditional knowledge in relation to climate change and its effects in Tr'ondëk Hwëch'in traditional territory

Alexandra Winton, David Neufeld, Erin Neufeld, Georgette McLeod, Jackie Olson, Katelyn Friendship, Shirley Roburn, Sue Parsons & Trish Hume
Tr'ondëk Hwëch'in is a self-governing First Nation that signed a Final Agreement with the Yukon Government and Canada in 1998. Tr'ondëk Hwëch'in offers a variety of year-round programming to the community of Dawson City, Yukon and many of these programs are supported by information collected through oral history interviews and the documentation of traditional knowledge. Our IPY project involved multiple phases, including field research, oral history interviews, community mapping, and academic partnerships. Other important aspects...

Canadian Meteorological Centre (CMC) daily gridded snow depth analysis for Northern Hemisphere, 1998-2008

Anne Walker, Bruce Brasnett & Ross Brown
Operational analysis of all available real time in situ snow depth observations from SYNOPS, METARS (meteorological aviation reports) and SAs (special aviation reports) on the World Meteorological Organization information system. The analysis is updated every 6 hours using the method of optimum interpolation with an initial guess field provided by a simple snow accumulation and melt model using analyzed temperatures and forecast (6 hour) precipitation from the CMC global forecast model GEM. The method is...

Water column chemical data of lakes and fiords along the northern coastline of Ellesmere Island (Ward Hunt Island observatory)

Warwick Vincent, Marie Lionard, Julie Veillette, Patrick Van Hove, Sophie Charvet & Sébastien Bourget
Water samples were taken down the water column of several lakes and fiords (Lake A, Lake B, Lake C1, Lake C2, Lake C3, Ward Hunt Lake, Disraeli Fiord, Milne Fiord and Taconite Inlet) located along the northern coastline of Ellesmere Island (Nunavut, Canada) to investigate their chemical characteristics (TN, TP, Nitrate-nitrite, SRP, DOC, TOC, DIC). Chemical analyses were processed at the National Laboratory for Environemental Testing (NLET, Burlington, Ontario, Canada) or at Institut national de...

Environmental data for an ordination analysis explaining the abundance of MAST-1 sub-clades

Connie Lovejoy, Mary Thaler, Eddy C. Carmack, , Joannie Martin, Karen Scarcella & Yves Gratton
The datasets present new data from microscopic counts and selected nutrient and physical data assembled from the following missions. Aboard the CCGS Louis St-Laurent: IPY Canada's Three Oceans 2007. Aboard the CCGS Amundsen: International Polar Year (IPY) Circumpolar Flaw Lead Study 2008; ArcticNet 2008. Temporal coverage is July-September. Cell density of the three sub-clades MAST-1A, MAST-1B and MAST-1C was measured by cell-counts using fluorescent in situ hybridization with taxa-specific probe. Biomass of phototrophic organisms, of...

2005-2009 River and Soil Dissolved organic carbon (DOC) and total dissolved nitrogen (TDN) concentrations, Cape Bounty

Melissa Lafreniere
Samples were vacuum filtered using a glass filtration apparatus and precombusted 0.7 um GF/F glass fibre filters. In 2007 and 2008, samples were pressure filtered using a stainless steel apparatus. Filtration apparatus was soaked overnight in 30% hydrogen peroxide or 3% HCl, and triple rinsed with deionised water and sample for each use. Samples were stored cool in the dark (refrigerated) in amber glass EPA vials, and acidified to a pH of 2 upon return...

Delineation of ridge features with a high probability of scour in high-resolution satellite based radar imagery

Ryan Phillips, Tony King, Carl Howell, Daryl Burry, Des Power, Mark Howell, Mike Lynch, Pradeep Bobby & Sue Carter
DFO's Upward Looking Sonar (ULS) collected keel draft data in the Canadian Beaufort Sea. This ULS data collected between 2003 and 2008 were analyzed and 117 ice ridge keels with drafts in excess of 20 m were identified. No data were available for 2009 due to a malfunctioning ADCP unit, and no processed keel data were available for 2010 or later. Envisat and Landsat 5 and Landsat 7 archives were searched for imagery that corresponded...

CanICE - A Sea Ice Information Database and Web-based Portal

Lina Assad, Leah Braithwaite, Darlene Langois, Ellsworth LeDrew, Eveline Bernier, Julie Friddell, , , Yvan Bédard &
This project will create a publicly-accessible database with geographic and time-related reference points of sea ice features, including coverage, concentration, type, characteristics, and extreme ice hazards. The database will contain detailed information important to offshore activities and environmental assessments in the Beaufort Sea region. Access to the database will be through the Polar Data Catalogue (PDC). The database will be produced in a standard format to allow for integration with various information sources. New tools...

Colour-shaded seafloor relief, Southeast Garry Island 2009, Mackenzie Delta, Beaufort Sea, offshore northern Canada

Dustin Whalen
The data set is an image of colour-shaded sun-illuminated seafloor topography collected near Garry Island in the Mackenzie Delta in the Beaufort Sea in 2009 by the Geological Survey of Canada (Atlantic) (GSCA). Data were collected with a SwathPlus Interferometric Sidescan system on Geological Survey of Canada (Atlantic), Multibeam Expedition, Beaufort Explorer 2009305. These data were collected using Differential Global Positioning System (DGPS) which determines the position of the vessel with an accuracy of 3...

Colour-shaded riverbed relief, Middle Channel at Langley Island 2010, Mackenzie Delta, Beaufort Sea, offshore northern Canada

Dustin Whalen
The data set is an image of colour-shaded sun-illuminated seafloor topography collected near Langley Island in the Mackenzie Delta in the Beaufort Sea in 2010 by the Geological Survey of Canada (Atlantic) (GSCA). Data were collected with a SwathPlus Interferometric Sidescan system on Geological Survey of Canada (Atlantic), Multibeam Expedition, Beaufort Explorer 2010305. These data were collected using Differential Global Positioning System (DGPS) which determines the position of the vessel with an accuracy of 3...

Colour-shaded seafloor relief, East Channel Scour 2010, Mackenzie Delta, Northwest Territories, Canada

Dustin Whalen
The data set is an image of colour-shaded sun-illuminated seafloor topography collected from East Channel, North of Inuvik in the Mackenzie Delta in 2010 by the Geological Survey of Canada (Atlantic) (GSCA). Data were collected with a SwathPlus Interferometric Sidescan system on Geological Survey of Canada (Atlantic), Multibeam Expedition, Beaufort Explorer 2010305. These data were collected using Differential Global Positioning System (DGPS) which determines the position of the vessel with an accuracy of 3 to...

Spit crest, Catton Point 1996, Ivvavik National Park, Yukon, northern Canada

Sheila Hynes, Steve Solomon & Dustin Whalen
Field work and airphoto studies were undertaken between 1953-1996 along the Yukon coast of the Beaufort Sea in Ivvavik National Park to determine coastal erosion rates, processes and hazards in relation to archeological and cultural heritage sites, many of which are concentrated along the coast in this region. The work was carried out on behalf of Parks Canada (Canadian Heritage, Western Arctic District, Inuvik) at Niakolik Point, Stokes Point, Catton Point/Ptarmigan Bay, Nunaluk Spit and...

Cliff base, Clarence Lagoon 1976-1996, Ivvavik National Park, Yukon, northern Canada

Sheila Hynes, Donald L. Forbes & Dustin Whalen
Field work and airphoto studies were undertaken between 1953-1996 along the Yukon coast of the Beaufort Sea in Ivvavik National Park to determine coastal erosion rates, processes and hazards in relation to archeological and cultural heritage sites, many of which are concentrated along the coast in this region. The work was carried out on behalf of Parks Canada (Canadian Heritage, Western Arctic District, Inuvik) at Niakolik Point, Stokes Point, Catton Point/Ptarmigan Bay, Nunaluk Spit and...

Cliff edge, Komakuk Beach 1951 to 1997, Ivvavik National Park, Yukon, northern Canada

Sheila Hynes, Donald L. Forbes & Dustin Whalen
Field work and airphoto studies were undertaken between 1953-1996 along the Yukon coast of the Beaufort Sea in Ivvavik National Park to determine coastal erosion rates, processes and hazards in relation to archeological and cultural heritage sites, many of which are concentrated along the coast in this region. The work was carried out on behalf of Parks Canada (Canadian Heritage, Western Arctic District, Inuvik) at Niakolik Point, Stokes Point, Catton Point/Ptarmigan Bay, Nunaluk Spit and...

Coastline, Nunaluk Spit 1952-1976, Ivvavik National Park, Yukon, northern Canada

Sheila Hynes, Donald L. Forbes & Dustin Whalen
Field work and airphoto studies were undertaken between 1953-1996 along the Yukon coast of the Beaufort Sea in Ivvavik National Park to determine coastal erosion rates, processes and hazards in relation to archeological and cultural heritage sites, many of which are concentrated along the coast in this region. The work was carried out on behalf of Parks Canada (Canadian Heritage, Western Arctic District, Inuvik) at Niakolik Point, Stokes Point, Catton Point/Ptarmigan Bay, Nunaluk Spit and...

Cliff top, Stokes Point West 1954 - 1996, Ivvavik National Park, Yukon, northern Canada

Sheila Hynes, Donald L. Forbes & Dustin Whalen
Field work and airphoto studies were undertaken between 1953-1996 along the Yukon coast of the Beaufort Sea in Ivvavik National Park to determine coastal erosion rates, processes and hazards in relation to archeological and cultural heritage sites, many of which are concentrated along the coast in this region. The work was carried out on behalf of Parks Canada (Canadian Heritage, Western Arctic District, Inuvik) at Niakolik Point, Stokes Point, Catton Point/Ptarmigan Bay, Nunaluk Spit and...

Ocean and sea ice 1/12 degree model hindcast for the Arctic and North Atlantic oceans (2003-2009)

Fraser Davidson, Simon Higginson, Frederic Dupont, Jean-Francois Lemieux, Youyu Lu, François Roy & Gregory Smith
Ocean and sea ice conditions are simulated for the period 2003-2009 using the model configuration described in Dupont et al. (2015). The model includes the Arctic and the North Atlantic oceans, and has a horizontal resolution of 1/12 degree, equivalent to an average of approximately 5km in the Arctic. There are 50 vertical levels in the model. The model is driven at the surface by atmospheric conditions from the Environment Canada GDPS, and at the...

OASIS-CANADA-OOTI CFL: Atmospheric composition and structure during the CFL campaign near the Amundsen icebreaker in the Amundsen Gulf

Jan Bottenheim, Stoyka Netcheva, Alexandra Steffen & Ralf Staebler
Data were compiled in campaign mode and were obtained over the ice of the Amundsen Gulf, using the OOTI (Out On The Ice) mobile laboratory mounted on a specially manufactured Arctic sled and running on a bank of 12 VDC batteries. Chemical and meteorological variables were collected with commercial instrumentation, as detailed below. Mercury (Hg): Gardis (atomic absorption spectroscopy) instrumentation displayed strong dependence of the cell desorption with battery voltage, thus data are not archived....

Long-term monitoring of breeding activity of avian predators on Bylot Island, Nunavut

Gilles Gauthier, Marie-Christine Cadieux &
We are monitoring the nesting activity of Long-tailed Jaegers, Parasitic Jaegers, Glaucous Gulls, Snowy Owls and Rough-legged Hawks. We find nests through either systematic searches or opportunistically. All nests found are positioned with a GPS and revisited during the breeding period to determine laying date, clutch size, hatching date and fledging success. We also study their diet by collecting regurgitation pellets and prey remains at nests (2004-2008) and blood samples from adults and young for...

Long-term monitoring of graminoid primary production and goose grazing impact on plant communities on Bylot Island, Nunavut

Gilles Gauthier, Marie-Christine Cadieux &
We sample the production of graminoid plants (sedges and grasses) and measure the impact of goose grazing in wetlands at 3 wetland sites on Bylot Island every year. At each site, 12 new exclosures (1 m x 1 m x 50 cm high) made of chicken wire are installed in late June. At the end of the growing season in mid-August, we sample plant biomass by removing 20x20 cm plots in ungrazed and grazed areas...

Lemming abundance and habitat selection at Walker Bay, Nunavut

Douglas Morris
We monitor lemming abundance using two methods. (1) Capture-marking-recapture by live trapping animals using Longworth traps on twelve 0.36 grids (25 live-trap stations) and one 9-ha grid (100 live traps) in mixed heath/wetland habitats. The 12 small grids have been sampled in 1996, 1997, 1999, 2004, 2007 and 2009. The large grid was sampled in 2004 and 2007. Trapping sessions last for 3 days and occur only once during the summer in June/July. We identify...

Summer abundance and activity monitoring of arthropods at Alert, Nunavut

R.I. Guy Morrison
Modified Malaise traps are used to capture surface active and low-flying arthropods. Two 5-trap transects are established in two dominant shorebird foraging habitats that are used during the brood rearing period, i.e. marsh and dry tundra (2 transect/habitat), and run continuously from late June to early August. Traps are emptied every 48 hrs. Arthropods collected are classified to their particular order. Some orders, such as Diptera and Collembola, are further classified to family and separated...

Registration Year

  • 2017
    3
  • 2016
    163
  • 2012
    80

Resource Types

  • Dataset
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  • Collection
    1