{ "@context":{"@vocab":"https://schema.org/"}, "@type":"ItemList", "itemListElement": [ { "@type":"ListItem", "position":1, "item":{ "@type":"Dataset", "name":"Long-term automated monitoring of year-round climatic parameters on Bylot Island, Nunavut", "datePublished": "2008-01-18", "dateModified": "2025-01-24", "description":"Climate has a strong impact on arctic wildlife species, either in the short term (e.g. due to strong annual variation in weather conditions) or in the long-term (e.g. due to global warming). In order to better understand theses impacts on wildlife and plants, we recommend the monitoring of a few basic weather variables. In many areas, climatic stations operated by Environment Canada can provide long-term data on weather but these stations are often located at some distance from our field sites. Therefore, it is recommended that some weather parameters are also monitored at the field site itself, at least during the field season, to have a record of local weather. The two most important weather variables to monitor are air temperatures and precipitations. Moreover, other climatic variables important to biological processes such as thawing degree-days, growing degree-days, and the number of frost-free days can be derived from air temperature data. In addition, snow depth and snow cover in spring should also be monitored because the timing of snow-melt in spring can have a considerable impact on the annual phenology of species.", "url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=622", "keywords": [ "Geographic locations -> Bylot Island", "Natural sciences -> Air temperature", "Natural sciences -> Precipitation", "Natural sciences -> Relative humidity", "Natural sciences -> Snow cover", "Natural sciences -> Snow depth", "Natural sciences -> Soil temperature", "Natural sciences -> Solar radiation", "Natural sciences -> Winds" ], "creator":{ "@type":"Person", "name":"Gilles Gauthier", "contactPoint":{ "@type":"ContactPoint", "contactType":"technical support", "telephone":"+1-1-418-656-5507", "email":"gilles.gauthier@bio.ulaval.ca" } }, "includedInDataCatalog":{ "@type":"DataCatalog", "name":"polardata.ca" }, "temporalCoverage":"1993-Aug-9/Not Defined", "spatialCoverage":{ "@type":"Place", "geo":{ "@type":"GeoShape", "box":"73.2 -80.0 73.2 -80.0" } }, "license":"https://www.polardata.ca/pdcinput/public/termsofuse" } }, { "@type":"ListItem", "position":2, "item":{ "@type":"Dataset", "name":"Mesozooplankton abundance, distribution and composition in the northern Baffin Bay: ArcticNet 2005-2018", "datePublished": "2011-01-28", "dateModified": "2025-04-28", "description":"Zooplankton herbivorous species play an important role in the channeling of energy and organic matter from the primary producers to higher trophic levels occupied by marine vertebrates. Various other processes involved in the biogeochemical flux of carbon in the ocean are mediated by zooplankton. Moreover, in the context of climatic change, a poleward displacement of southern and temperate zooplankton species from the northeast Atlantic and north Pacific is expected. This will bring the unique cold and ice covered Arctic specialized zooplankton assemblages under stronger competitive pressure, possibly resulting in species extinction and major disruptions of the Arctic marine ecosystems that need to be investigated. In these perspectives, knowledge of Arctic zooplankton community structure and diversity in different sectors of the Arctic Ocean needs to be improved in order to start monitoring the evolution of these communities over time. This dataset was produced to describe the zooplankton assemblages and their distribution in the northern Baffin Bay, with a strong emphasis on the North Water polynya region from 2005 to 2018.", "url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=10508", "keywords": [ "Geographic locations -> Baffin Bay", "Geographic locations -> North Water Polynya", "Natural sciences -> Abundance", "Natural sciences -> Biodiversity", "Natural sciences -> Marine ecology", "Natural sciences -> Zooplankton" ], "creator":{ "@type":"Person", "name":"Maxime Geoffroy", "contactPoint":{ "@type":"ContactPoint", "contactType":"technical support", "telephone":"+1-(709)-778-0499", "email":"maxime.geoffroy@mi.mun.ca" } }, "includedInDataCatalog":{ "@type":"DataCatalog", "name":"polardata.ca" }, "temporalCoverage":"2005-Aug-12/2021-Oct-31", "spatialCoverage":{ "@type":"Place", "geo":{ "@type":"GeoShape", "box":"79.0 -79.0 70.0 -69.0" } }, "license":"https://www.polardata.ca/pdcinput/public/termsofuse" } }, { "@type":"ListItem", "position":3, "item":{ "@type":"Dataset", "name":"Mesozooplankton abundance, distribution and composition in the Canadian Arctic Archipelago: ArcticNet 2005-2018", "datePublished": "2011-01-28", "dateModified": "2025-04-28", "description":"Zooplankton herbivorous species play an important role in the channeling of energy and organic matter from the primary producers to higher trophic levels occupied by marine vertebrates and birds. Various other processes involved in the biogeochemical flux of carbon in the ocean are mediated by zooplankton. Moreover, in the context of climatic change, a poleward displacement of southern and temperate zooplankton species from the northeast Atlantic and north Pacific is expected. This will bring the unique cold and ice covered Arctic specialized zooplankton assemblages under stronger competitive pressure, possibly resulting in species extinction and major disruptions of the Arctic marine ecosystems that need to be investigated. In these perspectives, knowledge of Arctic zooplankton community structure and diversity in different sectors of the Arctic Ocean needs to be improved in order to start monitoring the evolution of these communities over time. This dataset was produced to describe the zooplankton assemblages and their distribution in the Canadian Arctic Archipelago from 2005 to 2018.", "url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=10510", "keywords": [ "Geographic locations -> Barrow Strait", "Geographic locations -> Canadian Arctic Archipelago", "Natural sciences -> Abundance", "Natural sciences -> Biodiversity", "Natural sciences -> Marine ecology", "Natural sciences -> Zooplankton" ], "creator":{ "@type":"Person", "name":"Maxime Geoffroy", "contactPoint":{ "@type":"ContactPoint", "contactType":"technical support", "telephone":"+1-(709)-778-0499", "email":"maxime.geoffroy@mi.mun.ca" } }, "includedInDataCatalog":{ "@type":"DataCatalog", "name":"polardata.ca" }, "temporalCoverage":"2005-Aug-20/2021-Nov-2", "spatialCoverage":{ "@type":"Place", "geo":{ "@type":"GeoShape", "box":"75.0 -120.0 65.0 -80.0" } }, "license":"https://www.polardata.ca/pdcinput/public/termsofuse" } }, { "@type":"ListItem", "position":4, "item":{ "@type":"Dataset", "name":"Biological data of Arctic cod larvae and juveniles in the Canadian Arctic: ArcticNet 2005-2021", "datePublished": "2011-01-28", "dateModified": "2025-04-21", "description":"Arctic cod (Boreogadus saida) is a widely-distributed and abundant fish in the Arctic Ocean that mediate carbon directly from metazoan zooplankton to vertebrate predators of the marine food web. Survival, growth dynamic and feeding success during early stages of this key species are closely related to environmental factors such as surface temperature and Arctic sea ice concentration. This study explores the links between spatial and interannual differences in biological data of young stages Arctic cod and their changing habitat. The ultimate objective is to participate in developing models of the impacts of the on-going reduction of sea-ice on the trophic web of the High Arctic.", "url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=10512", "keywords": [ "Geographic locations -> Beaufort Sea", "Geographic locations -> Canadian Arctic Archipelago", "Geographic locations -> Hudson Bay", "Natural sciences -> Arctic cod", "Natural sciences -> Feeding success", "Natural sciences -> Fish larvae", "Natural sciences -> Fishes", "Natural sciences -> Growth rate", "Natural sciences -> Morphology", "Natural sciences -> Otolith" ], "creator":{ "@type":"Person", "name":"Maxime Geoffroy", "contactPoint":{ "@type":"ContactPoint", "contactType":"technical support", "telephone":"+1-(709)-778-0499", "email":"maxime.geoffroy@mi.mun.ca" } }, "includedInDataCatalog":{ "@type":"DataCatalog", "name":"polardata.ca" }, "temporalCoverage":"2005-Aug-10/2021-Oct-30", "spatialCoverage":{ "@type":"Place", "geo":{ "@type":"GeoShape", "box":"80.0 -140.0 56.0 -66.0" } }, "license":"https://www.polardata.ca/pdcinput/public/termsofuse" } }, { "@type":"ListItem", "position":5, "item":{ "@type":"Dataset", "name":"Sedimentation and organic carbon data from Lake Melville, Labrador", "datePublished": "2015-01-21", "dateModified": "2025-02-27", "description":"Our main objectives were to investigate the sediment and organic matter deposition to Lake Melville and to quantify inputs and outputs through the system by developing contemporary budgets of sediment and particulate organic matter. Through the analysis of both natural (Pb-210, δ13C, organic carbon (OC) content) and anthropogenically derived Cs-137 in sediment cores, an understanding of previous environmental conditions can be achieved. Knowledge of these processes is essential to identify fundamental processes involved in the transfer of material from the watershed to the open ocean and to interpret the most sensitive processes that are likely to change in the future as a result of hydrological or climatic changes. Particulate matter collected from major tributaries and throughout Lake Melville and coastal waters in June 2013 and October 2014 were analysed for OC content and δ13C. This data contributes to the understanding and quantification of terrigenous and marine derived organic matter to the system.", "url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=12053", "keywords": [ "Geographic locations -> Labrador", "Geographic locations -> Lake Melville", "Natural sciences -> 137-Cs", "Natural sciences -> 210-Pb", "Natural sciences -> Nutrients", "Natural sciences -> Organic carbon", "Natural sciences -> Radiochronology", "Natural sciences -> Sediment accumulation rate", "Natural sciences -> Sediment cores" ], "creator":{ "@type":"Person", "name":"Zou Zou Kuzyk", "contactPoint":{ "@type":"ContactPoint", "contactType":"technical support", "telephone":"+1-204-272-1535", "email":"zouzou.kuzyk@umanitoba.ca" } }, "includedInDataCatalog":{ "@type":"DataCatalog", "name":"polardata.ca" }, "temporalCoverage":"2013-Jun-9/2014-Oct-23", "spatialCoverage":{ "@type":"Place", "geo":{ "@type":"GeoShape", "box":"54.3 -60.33 53.38 -58.07" } }, "license":"https://www.polardata.ca/pdcinput/public/termsofuse" } }, { "@type":"ListItem", "position":6, "item":{ "@type":"Dataset", "name":"Moving Vessel Profiling (MVP) data collected by the CCGS Amundsen in the Canadian Arctic", "datePublished": "2015-11-03", "dateModified": "2025-07-15", "description":"The Moving Vessel Profiler (MVP) records temperature, salinity, sound velocity, fluorescence, dissolved oxygen, and transmittance in the water column. Vertical profiles provide information on prevailing physical oceanic conditions during CCGS Amundsen expeditions, aiding in biological, chemical, and physical samplings. They also record parameters for studying physical oceanographic processes in the Canadian Arctic Ocean, including water column structure, water mass characteristics, and oceanic circulation. While data collection extends beyond the Canadian Arctic border, the primary focus is on the Canadian Arctic Ocean.", "url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=12519", "keywords": [ "Geographic locations -> Arctic Ocean", "Geographic locations -> Baffin Bay", "Geographic locations -> Beaufort Sea", "Geographic locations -> Canadian Arctic Archipelago", "Geographic locations -> Chukchi Sea", "Geographic locations -> Greenland", "Geographic locations -> Gulf of St. Lawrence", "Geographic locations -> Hudson Bay", "Geographic locations -> Hudson Strait", "Geographic locations -> Labrador", "Geographic locations -> Nares Strait", "Geographic locations -> Northwest Passage", "Natural sciences -> CTD (Conductivity, Temperature, Depth)", "Natural sciences -> Fluorescence", "Natural sciences -> Transmittance", "Natural sciences -> Water column" ], "creator":{ "@type":"Organization", "url":"http://doi.org/10.5884/12519", "name":"ArcticNet", "contactPoint":{ "@type":"ContactPoint", "contactType":"technical support", "telephone":"+1-418-656-2411", "email":"pdc@arcticnet.ulaval.ca" } }, "includedInDataCatalog":{ "@type":"DataCatalog", "name":"polardata.ca" }, "temporalCoverage":"2004-Jun-20/2024-Oct-23", "spatialCoverage":{ "@type":"Place", "geo":{ "@type":"GeoShape", "box":"81.23 -167.49 48.19 -55.86" } }, "license":"https://www.polardata.ca/pdcinput/public/termsofuse" } }, { "@type":"ListItem", "position":7, "item":{ "@type":"Dataset", "name":"CTD data collected by the CCGS Amundsen in the Canadian Arctic", "datePublished": "2016-10-20", "dateModified": "2025-04-16", "description":"This research aims to collect and provide core physical and chemical oceanographic data for all Arctic research teams onboard CCGS Amundsen and other interested scientists.", "url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=12713", "keywords": [ "Geographic locations -> Arctic Ocean", "Geographic locations -> Baffin Bay", "Geographic locations -> Northwest Passage", "Natural sciences -> Conductivity", "Natural sciences -> CTD (Conductivity, Temperature, Depth)", "Natural sciences -> CTD profiles", "Natural sciences -> Fluorescence", "Natural sciences -> Nitrates", "Natural sciences -> Oxygen", "Natural sciences -> Photosynthesis", "Natural sciences -> Photosynthetically available radiation (PAR)", "Natural sciences -> Pressure", "Natural sciences -> Salinity", "Natural sciences -> Temperature", "Natural sciences -> Transmittance" ], "creator":{ "@type":"Organization", "url":"http://doi.org/10.5884/12713", "name":"ArcticNet", "contactPoint":{ "@type":"ContactPoint", "contactType":"technical support", "telephone":"+1-418-656-2411", "email":"pdc@arcticnet.ulaval.ca" } }, "includedInDataCatalog":{ "@type":"DataCatalog", "name":"polardata.ca" }, "temporalCoverage":"2014-Jul-15/2024-Oct-26", "spatialCoverage":{ "@type":"Place", "geo":{ "@type":"GeoShape", "box":"81.2 -172.5 47.4 -48.4589" } }, "license":"https://www.polardata.ca/pdcinput/public/termsofuse" } }, { "@type":"ListItem", "position":8, "item":{ "@type":"Dataset", "name":"ThermoSalinoGraph (TSG) data collected by the CCGS Amundsen in the Canadian Arctic", "datePublished": "2016-10-20", "dateModified": "2025-07-15", "description":"Provide core physical oceanographic data for all arctic research teams onboard CCGS Amundsen and other interested scientists. The underway ThermoSalinoGraph (TSG) system records data on surface seawater temperature, salinity, fluorescence and sound velocity along the transit route. These data constitute ancillary data for all other data recorded during the CCGS Amundsen scientific expeditions by providing information on the prevailing physical oceanic conditions in which biological, chemical and physical samplings were conducted. They also provide long-term records of the basic parameters central to the study of physical oceanographic processes, more specifically water column structure, water masses characteristics and oceanic circulation, in the Canadian Arctic Ocean.", "url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=12715", "keywords": [ "Geographic locations -> Arctic Ocean", "Natural sciences -> Fluorescence", "Natural sciences -> Salinity", "Natural sciences -> Velocity", "Natural sciences -> Water temperature" ], "creator":{ "@type":"Organization", "url":"http://doi.org/10.5884/12715", "name":"ArcticNet", "contactPoint":{ "@type":"ContactPoint", "contactType":"technical support", "telephone":"+1-418-656-2411", "email":"pdc@arcticnet.ulaval.ca" } }, "includedInDataCatalog":{ "@type":"DataCatalog", "name":"polardata.ca" }, "temporalCoverage":"2005-Aug-22/2024-Oct-29", "spatialCoverage":{ "@type":"Place", "geo":{ "@type":"GeoShape", "box":"81.48 -172.58 46.38 -50.75" } }, "license":"https://www.polardata.ca/pdcinput/public/termsofuse" } }, { "@type":"ListItem", "position":9, "item":{ "@type":"Dataset", "name":"Littoral Chair - Sentinel North Partnership Research Chair in Ecosystem Approaches to Health", "datePublished": "2017-01-31", "dateModified": "2024-09-16", "description":"Ecosystems are changing rapidly and Indigenous and coastal populations are particularly vulnerable to these changes. While older persistent organic pollutants are declining, mercury remains a topical issue in the North. Each year, several new chemicals are also placed on the market and subsequently found in the North, with unknown impacts on health. Climate and environmental changes also exert increasing pressure on marine ecosystems and eventually on food security, which is precarious in several Indigenous and coastal communities. Local foods are important for health, social cohesion, cultural continuity, and food sovereignty. Foods from the sea also are exceptionally rich in nutrients such as selenoneine, an anti-oxidant selenium compound that we recently identified in Arctic marine foods. These local foods offer a unique potential to bring together different knowledges to help prevent chronic diseases, to promote healthy pregnancies and children as well as to counteract the harmful effects of environmental contaminants on health.", "url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=12767", "keywords": [ "Health sciences and contaminants -> Health", "Health sciences and contaminants -> Methylmercury", "Health sciences and contaminants -> Nutrition", "Health sciences and contaminants -> Persistent organic pollutants (POPs)", "Natural sciences -> Ecosystem", "Social sciences, economics and policy -> Human health", "Social sciences, economics and policy -> Indigenous peoples", "Transdisciplinary -> Study" ], "creator":{ "@type":"Person", "name":"Mlanie Lemire", "contactPoint":{ "@type":"ContactPoint", "contactType":"technical support", "telephone":"+1-418-525-4444 ext 81967", "email":"melanie.lemire@crchuq.ulaval.ca" } }, "includedInDataCatalog":{ "@type":"DataCatalog", "name":"polardata.ca" }, "temporalCoverage":"2015-Dec-31/2024-Jun-29", "spatialCoverage":{ "@type":"Place", "geo":{ "@type":"GeoShape", "box":"67.0 -77.0 48.0 -63.0" } }, "license":"https://www.polardata.ca/pdcinput/public/termsofuse" } }, { "@type":"ListItem", "position":10, "item":{ "@type":"Dataset", "name":"The effect of retrogressive thaw slumps on the delivery of high loads of toxic methylmercury to downstream freshwater systems in the Peel Plateau region, Northwest Territories", "datePublished": "2017-03-30", "dateModified": "2025-03-24", "description":"The objectives of this research are as follows:(1)Quantify THg and MeHg delivery from retrogressive thaw slumps (RTS) features to Peel Plateau streams, and explore how this delivery varies with slump morphology;(2)Determine how THg and MeHg concentrations downstream of slumps change with increasing distance from the site of disturbance, to better understand how slumping might affect streamwater Hg at the landscape scale;(3)Quantify biogeochemical controls on within-stream THg and MeHg concentrations across slump sites and throughout the thaw season, to better understand drivers of THg and MeHg on the Peel Plateau; and(4)Generate information about the relationship between slumping and Hg that is useful to local communities that use the Peel Plateau landscape, to enable community members to apply their land use decisions more confidently.", "url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=12806", "keywords": [ "Geographic locations -> Northwest Territories", "Health sciences and contaminants -> Mercury", "Natural sciences -> Biogeochemistry", "Natural sciences -> Permafrost", "Natural sciences -> Stream" ], "creator":{ "@type":"Person", "name":"Suzanne Tank", "contactPoint":{ "@type":"ContactPoint", "contactType":"technical support", "telephone":"+1-780-248-1152", "email":"suzanne.tank@ualberta.ca" } }, "includedInDataCatalog":{ "@type":"DataCatalog", "name":"polardata.ca" }, "temporalCoverage":"2016-Jul-1/2016-Aug-25", "spatialCoverage":{ "@type":"Place", "geo":{ "@type":"GeoShape", "box":"67.415 -135.97 67.142 -135.08" } }, "license":"https://www.polardata.ca/pdcinput/public/termsofuse" } }, { "@type":"ListItem", "position":11, "item":{ "@type":"Dataset", "name":"Exposure to Food Chain Contaminants in Nunavik: Biomonitoring in Adult and Youth Cohorts of the Qanuilirpitaa Survey", "datePublished": "2018-04-16", "dateModified": "2024-09-16", "description":"The purpose is to update data on exposure to food-chain contaminants among Nunavimmiut. This will be achieved in the framework of the Qanuilirpitaa Nunavik Inuit Health Survey, which comprises an adult cohort of adults - 31 years and older - and youths between 16 and 30 years of age (1329 participants). Therefore we will: 1. Measure through biomonitoring Nunavimmiuts exposure to toxic metals [mercury (Hg), lead (Pb), and cadmium (Cd)] and legacy persistent organic pollutants (POPs), new POPS and contaminants of emerging concerns (CECs), as well as other new CECs currently only investigated as part of environmental monitoring programs in the Arctic; 2. Evaluate the nutritional status of Nunavimmiut (omega-3 polyunsaturated fatty acids (PUFAs), total selenium (Se) and selenoneine, hemoglobin and iron status, and manganese (Mn); 3. Account for country and store-bought food consumption of Qanuilirpitaa participants, food security, socio-demographic status, lifestyle habits and anthropometric characteristics in explaining biomonitoring data.", "url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=12920", "keywords": [ "Health sciences and contaminants -> Diet", "Health sciences and contaminants -> Heavy metal", "Health sciences and contaminants -> Inuit Health Survey", "Health sciences and contaminants -> Nutrition", "Health sciences and contaminants -> Perfluorinated alkylated substances", "Health sciences and contaminants -> Persistent organic pollutants (POPs)" ], "creator":{ "@type":"Person", "name":"Pierre Ayotte", "contactPoint":{ "@type":"ContactPoint", "contactType":"technical support", "telephone":"+1-(418) 650-5115 ext. 4654", "email":"pierre.ayotte@inspq.qc.ca" } }, "includedInDataCatalog":{ "@type":"DataCatalog", "name":"polardata.ca" }, "temporalCoverage":"2017-Jun-21/Not Defined", "spatialCoverage":{ "@type":"Place", "geo":{ "@type":"GeoShape", "box":"55.0 -64.0 55.0 -64.0" } }, "license":"https://www.polardata.ca/pdcinput/public/termsofuse" } }, { "@type":"ListItem", "position":12, "item":{ "@type":"Dataset", "name":"Understanding and Predicting Mercury in Dehcho Lakes, Northwest Territories", "datePublished": "2019-04-29", "dateModified": "2025-03-06", "description":"In this project, we are aiming to understand how landscape, lake, and fish ecology explain variation in fish mercury (Hg levels). Our results are identifying critical variables for future cumulative impact monitoring, and will enable more informed predictions of how fish Hg levels in the Dehcho region will respond to continued environmental change. Decision-makers will use our results to develop long-term monitoring strategies, identify lakes that are most vulnerable to future increases in fish Hg levels, refine consumption advisories, and identify lakes with the safest and healthiest sources of food fish. This data set is collected to support several projects supported by Northern Contaminants Program, CIMP 154 (GNWT), and the project titled Northern Water Futures, Objective 2'. Northern Water Futures is a Pillar 3 project under the Global Water Futures Program funded by Canada First Research Excellence Fund", "url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13080", "keywords": [ "Geographic locations -> Northwest Territories", "Health sciences and contaminants -> Mercury", "Health sciences and contaminants -> Methylmercury", "Health sciences and contaminants -> Safety", "Natural sciences -> Carbon", "Natural sciences -> Community-based monitoring", "Natural sciences -> Contaminants", "Natural sciences -> Ecology", "Natural sciences -> Environmental impacts", "Natural sciences -> Fisheries", "Natural sciences -> Hydrology", "Natural sciences -> Invertebrates", "Natural sciences -> Lakes", "Natural sciences -> Map layers", "Natural sciences -> Monitoring", "Natural sciences -> Nitrogen", "Natural sciences -> Sediments", "Natural sciences -> Stable isotope analyses", "Natural sciences -> Stream", "Natural sciences -> Water chemistry", "Natural sciences -> Wetland", "Social sciences, economics and policy -> Strategies" ], "creator":{ "@type":"Person", "name":"Heidi Swanson", "contactPoint":{ "@type":"ContactPoint", "contactType":"technical support", "telephone":"+1-2267896855", "email":"hswanson@uwaterloo.ca" } }, "includedInDataCatalog":{ "@type":"DataCatalog", "name":"polardata.ca" }, "temporalCoverage":"2018-Aug-1/2027-Sep-30", "spatialCoverage":{ "@type":"Place", "geo":{ "@type":"GeoShape", "box":"63.413929 -123.084138 60.185535 -117.492097" } }, "license":"https://www.polardata.ca/pdcinput/public/termsofuse" } }, { "@type":"ListItem", "position":13, "item":{ "@type":"Dataset", "name":"Kitikmeot Marine Ecosystems Study - Oceanographic Mooring Dataset", "datePublished": "2019-10-11", "dateModified": "2025-03-12", "description":"The main purpose of the WF1 and WF2 moorings was to investigate the oceanographic conditions affecting the shipwreck Erebus in the Queen Maud Gulf.", "url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13108", "keywords": [ "Natural sciences -> Carbon fluxes", "Natural sciences -> CTD (Conductivity, Temperature, Depth)", "Natural sciences -> Fluorescence", "Natural sciences -> Marine sediments", "Natural sciences -> Mooring", "Natural sciences -> Ocean currents", "Natural sciences -> Oceanography", "Natural sciences -> Sedimentation rates", "Natural sciences -> Turbidity" ], "creator":{ "@type":"Person", "name":"Amundsen Science Core Data Collection DATA Coordinator : Tahiana Ratsimbazafy", "contactPoint":{ "@type":"ContactPoint", "contactType":"technical support", "telephone":"+1-418-656-2411", "email":"pdc@arcticnet.ulaval.ca" } }, "includedInDataCatalog":{ "@type":"DataCatalog", "name":"polardata.ca" }, "temporalCoverage":"2015-Sep-20/2018-Sep-6", "spatialCoverage":{ "@type":"Place", "geo":{ "@type":"GeoShape", "box":"81.0 -150.0 46.0 -48.0" } }, "license":"https://www.polardata.ca/pdcinput/public/termsofuse" } }, { "@type":"ListItem", "position":14, "item":{ "@type":"Dataset", "name":"Long-term oceanic observatories moorings data in the Beaufort Sea during ArcticNet study 2004-2010, reprocessed.", "datePublished": "2019-10-11", "dateModified": "2024-10-25", "description":"To monitor changes in physical, biological and geochemical properties of the Canadian Arctic waters, ocean observatories (moorings) were deployed in the Beaufort Sea, Hudson Bay, Lancaster Sound, and Melville Sound as part of the ArcticNet field program. These moorings are the oceanic equivalent of atmospheric meteorological stations. The data are used to describe the seasonal and annual variations in the Arctic environment and its local ecosystems. This, in turn, enables us to understand how, and how quickly, global warming is affecting the Arctic", "url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13109", "keywords": [ "Geographic locations -> Amundsen Gulf", "Geographic locations -> Beaufort Sea", "Geographic locations -> Mackenzie Shelf", "Natural sciences -> Density", "Natural sciences -> Fluxes", "Natural sciences -> Monitoring", "Natural sciences -> Ocean currents", "Natural sciences -> Salinity", "Natural sciences -> Temperature", "Natural sciences -> Water column" ], "creator":{ "@type":"Person", "name":"Amundsen Science Core Data Collection DATA Coordinator : Tahiana Ratsimbazafy", "contactPoint":{ "@type":"ContactPoint", "contactType":"technical support", "telephone":"+1-418-656-2411", "email":"pdc@arcticnet.ulaval.ca" } }, "includedInDataCatalog":{ "@type":"DataCatalog", "name":"polardata.ca" }, "temporalCoverage":"2004-Oct-12/2010-Sep-21", "spatialCoverage":{ "@type":"Place", "geo":{ "@type":"GeoShape", "box":"71.7981 -138.6737 69.9551 -123.10067" } }, "license":"https://www.polardata.ca/pdcinput/public/termsofuse" } }, { "@type":"ListItem", "position":15, "item":{ "@type":"Dataset", "name":"Active Acoustic data in the Labrador Sea and Canadian Arctic (2017-2024)", "datePublished": "2020-03-23", "dateModified": "2024-09-16", "description":"Climate change has resulted in increased abundances of boreal fish species in the Arctic and altered distributions of indigenous species. Changes in fish composition could result in additional fishing opportunities in the Canadian Arctic. However, while the demersal ecosystem components have received increased attention, the distributions and dynamics of the main pelagic forage fish species (key prey of commercially exploited demersal fish) remain unknown. This project addresses critical knowledge gaps in pelagic ecosystems, which facilitate better forecasting of how ongoing climatic changes will affect fisheries productivity. Acoustic-trawl surveys from the CCGS Amundsen were conducted from 2017 - 2024 to establish baseline knowledge on the occurrence and distribution of Arctic and boreal pelagic fish and zooplankton in Northern Labrador and the Canadian Arctic, and to continue the ArcticNet time-series initiated in 2003. This datasets concerns the hull-mounted acoustic data that were collected from the Amundsen.", "url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13165", "keywords": [ "Geographic locations -> Canada", "Geographic locations -> Canadian Arctic Archipelago", "Geographic locations -> Labrador Sea", "Natural sciences -> Acoustic", "Natural sciences -> Fishes", "Natural sciences -> Zooplankton" ], "creator":{ "@type":"Person", "name":"Maxime Geoffroy", "contactPoint":{ "@type":"ContactPoint", "contactType":"technical support", "telephone":"+1-(709)-778-0499", "email":"maxime.geoffroy@mi.mun.ca" } }, "includedInDataCatalog":{ "@type":"DataCatalog", "name":"polardata.ca" }, "temporalCoverage":"2017-Jun-24/2024-Oct-30", "spatialCoverage":{ "@type":"Place", "geo":{ "@type":"GeoShape", "box":"82.0 -140.0 52.0 -54.0" } }, "license":"https://www.polardata.ca/pdcinput/public/termsofuse" } }, { "@type":"ListItem", "position":16, "item":{ "@type":"Dataset", "name":"Fish samples in the Labrador Sea and Canadian Arctic (2017-2024)", "datePublished": "2020-03-26", "dateModified": "2024-09-16", "description":"Climate change has resulted in increased abundances of boreal fish species in the Arctic and altered distributions of indigenous species. Changes in fish composition could result in additional fishing opportunities in the Canadian Arctic. However, while the demersal ecosystem components have received increased attention, the distributions and dynamics of the main pelagic forage fish species (key prey of commercially exploited demersal fish) remain unknown. This project addresses critical knowledge gaps in pelagic ecosystems, which facilitate better forecasting of how ongoing climatic changes will affect fisheries productivity. Acoustic-trawl surveys from the CCGS Amundsen were conducted from 2017 - 2024 to establish baseline knowledge on the occurrence and distribution of Arctic and boreal fish and zooplankton in Northern Labrador and the Canadian Arctic, and to continue the ArcticNet time-series initiated in 2003. This datasets concerns the species collected from both mid-water and bottom trawls deployed from CCGS Amundsen.", "url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13167", "keywords": [ "Geographic locations -> Canada", "Geographic locations -> Canadian Arctic Archipelago", "Geographic locations -> Labrador Sea", "Natural sciences -> Abundance", "Natural sciences -> Biodiversity", "Natural sciences -> Ecology", "Natural sciences -> Fishes" ], "creator":{ "@type":"Person", "name":"Maxime Geoffroy", "contactPoint":{ "@type":"ContactPoint", "contactType":"technical support", "telephone":"+1-(709)-778-0499", "email":"maxime.geoffroy@mi.mun.ca" } }, "includedInDataCatalog":{ "@type":"DataCatalog", "name":"polardata.ca" }, "temporalCoverage":"2017-Jun-25/2024-Oct-30", "spatialCoverage":{ "@type":"Place", "geo":{ "@type":"GeoShape", "box":"82.0 -140.0 52.0 -54.0" } }, "license":"https://www.polardata.ca/pdcinput/public/termsofuse" } }, { "@type":"ListItem", "position":17, "item":{ "@type":"Dataset", "name":"Ichthyoplankton and zooplankton samples in the Labrador Sea and Canadian Arctic (2017-2024)", "datePublished": "2020-03-26", "dateModified": "2024-09-16", "description":"Zooplankton herbivorous species play an important role in the channeling of energy and organic matter from the primary producers to higher trophic levels occupied by marine vertebrates. Knowledge of Arctic zooplankton community structure and diversity in different sectors of the Arctic Ocean needs to be gathered in order to start monitoring the evolution of these communities over time. This project describes the zooplankton assemblages and their distribution in the Labrador Sea and Canadian Arctic from 2017 - 2024. Surveys were conducted aboard the CCGS Amundsen to establish baseline knowledge on the occurrence and distribution of Ichthyoplankton and zooplankton, and to continue the ArcticNet time-series initiated in 2003. This datasets concerns the species collected from zooplankton samplers deployed from CCGS Amundsen.", "url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13168", "keywords": [ "Geographic locations -> Canada", "Geographic locations -> Canadian Arctic Archipelago", "Geographic locations -> Labrador Sea", "Natural sciences -> Abundance", "Natural sciences -> Biodiversity", "Natural sciences -> Marine ecology", "Natural sciences -> Zooplankton" ], "creator":{ "@type":"Person", "name":"Maxime Geoffroy", "contactPoint":{ "@type":"ContactPoint", "contactType":"technical support", "telephone":"+1-(709)-778-0499", "email":"maxime.geoffroy@mi.mun.ca" } }, "includedInDataCatalog":{ "@type":"DataCatalog", "name":"polardata.ca" }, "temporalCoverage":"2017-Jun-25/2023-Oct-30", "spatialCoverage":{ "@type":"Place", "geo":{ "@type":"GeoShape", "box":"82.0 -140.0 52.0 -54.0" } }, "license":"https://www.polardata.ca/pdcinput/public/termsofuse" } }, { "@type":"ListItem", "position":18, "item":{ "@type":"Dataset", "name":"Ontogenetic profiles of stable isotopes (15N and 13C) in dentine growth layer groups (GLGs) of narwhal embedded teeth", "datePublished": "2021-04-20", "dateModified": "2025-04-14", "description":"Narwhal embedded canines were collected by Inuit during subsistence hunts near Pond Inlet and provided to Fisheries and Oceans Canada through a voluntary collaborative sampling program with the Pond Inlet Hunters and Trappers Association. These harvested narwhals belonged to the Baffin Bay narwhal population, which is monitored by DFO for stock assessment. Stable isotope analysis (SIA) of sequential dentine growth layer groups from narwhal embedded canine teeth can be used to estimate the lifetime diet of individuals and infer major ontogenetic shifts such as the completion of nursing. We used SIA of dentine to investigate ontogenetic dietary patterns, with a focus on nursing duration. We also determined whether nursing duration differed between sexes and between 2 periods during which narwhals may have undergone dietary shifts due to warming. Embedded teeth from both sexes were collected near Pond Inlet, Nunavut, Canada, in 1982 and 1983 (n = 17) and 2015 and 2017 (n = 14). Nursing duration ranged from ~2 to ~6 yr, with 60% of narwhals being nursed beyond the previously published estimate of <2 yr. The proportion of individuals nursed <2 yr versus >2 yr did not differ between sexes or periods. This study not only revealed that narwhals vary extensively in their nursing duration, but also indicated that extended nursing (>2 yr) with gradual introduction of solid food over this period was common. These findings provide insights into narwhal life history strategies, as extended nursing may be another feature of a long-lived, slow-reproducing mammal adapted to unique polar conditions that are threatened by global warming.", "url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13235", "keywords": [ "Natural sciences -> Carbon", "Natural sciences -> Ecology", "Natural sciences -> Narwhals", "Natural sciences -> Nitrogen", "Natural sciences -> Stable isotope analyses", "Natural sciences -> Wildlife" ], "creator":{ "@type":"Person", "name":"Shu-Ting Zhao", "contactPoint":{ "@type":"ContactPoint", "contactType":"technical support", "telephone":"+1-2048075986", "email":"shuting.zhaost@gmail.com" } }, "includedInDataCatalog":{ "@type":"DataCatalog", "name":"polardata.ca" }, "temporalCoverage":"1982-Jun-2/2017-Aug-16", "spatialCoverage":{ "@type":"Place", "geo":{ "@type":"GeoShape", "box":"72.35633 -81.1066 65.421509 -70.965424" } }, "license":"https://www.polardata.ca/pdcinput/public/termsofuse" } }, { "@type":"ListItem", "position":19, "item":{ "@type":"Dataset", "name":"Long-term hydrological change of the Gwich'in Settlement Area, Mackenzie River Basin - ArcticNet P51.", "datePublished": "2022-02-02", "dateModified": "2024-10-03", "description":"The Mackenzie River Basin (MRB) is experiencing warming surface temperatures. Warmer temperatures may be affecting water levels/flows, causing warmer/drier winters, thinning ice, thawing permafrost, and changes to the surrounding ecosystems and to large-scale biogeochemical cycling. To address the knowledge gap on the drivers of changes in water quantity and quality in the MRB, six peat cores/monoliths were collected from the Gwichin Settlement Area (GSA) of the MRB and two from outside of the MRB, but near the same latitude, to reconstruct the long-term hydrological changes. A combined paleoecological and Traditional Knowledge approach will create new knowledge on past climate variability and water quantity in the MRB that will improve the understanding of how climate affects hydrology of the MRB. The peat cores were sliced at 5 mm or 1 cm intervals throughout their depth, and then sub-sampled for various analyses, including: 1) testate amoebae, palynology and microscopic charcoal, plant macrofossil and macroscopic charcoal analysis to reconstruct changes in vegetation, fire history, and hydrology over time; 2) radiometric dating to date the cores; 3) elemental (including Hg) geochemical analyses; and 4) HAWK pyrolysis to provide information on organic matter preserved in the peats. Cores and monoliths from peatlands were collected for the purpose of reconstructing hydrological change over past centuries to millennia. WHY the study took place: to reconstruct long-term changes in water quality and quantity to elucidate if and which synoptic scale drivers of climate change (e.g., the Pacific Decadal Oscillation) are affecting water resources in the Gwich'in Settlement Area, this information is needed for accurate modelling of future trajectories of water quality and quantity for the region; WHAT the study was about: this study aims to reconstruct long-term changes in water quality and quantity in the Gwich'in Settlement Area using a combination of western science and Traditional Knowledge for the purposes described above; WHY the data collection took place in the locations that it did: with air support provided by ArcticNet, the Gwich'in Renewable Resources Board were able to land at several peatlands and sampled peat cores and peat samples and other measurements, such as depth to water table, from a variety of peatland types and microforms. A variety of sampling locations is needed to understand the spatial variability in changes in water quantity.", "url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13261", "keywords": [ "Geographic locations -> Arctic", "Geographic locations -> Boreal", "Geographic locations -> Northwest Territories", "Health sciences and contaminants -> Mercury", "Health sciences and contaminants -> pH", "Natural sciences -> 137-Cs", "Natural sciences -> 210-Pb", "Natural sciences -> Active layer", "Natural sciences -> Bryophytes", "Natural sciences -> Climate change", "Natural sciences -> Climate history", "Natural sciences -> Climatic models", "Natural sciences -> Contaminants", "Natural sciences -> Isotopes", "Natural sciences -> Metals", "Natural sciences -> Paleoenvironment", "Natural sciences -> Peat", "Natural sciences -> Peat cores", "Natural sciences -> Plants", "Northern communities -> Aklavik", "Northern communities -> Fort McPherson", "Northern communities -> Inuvik", "Northern communities -> Tsiigehtchic" ], "creator":{ "@type":"Person", "name":"Jennifer Galloway", "contactPoint":{ "@type":"ContactPoint", "contactType":"technical support", "telephone":"+1-403 292 7187", "email":"jennifer.galloway@canada.ca" } }, "includedInDataCatalog":{ "@type":"DataCatalog", "name":"polardata.ca" }, "temporalCoverage":"2019-Mar-31/2023-Mar-28", "spatialCoverage":{ "@type":"Place", "geo":{ "@type":"GeoShape", "box":"69.0 -137.0 65.0 -129.0" } }, "license":"https://www.polardata.ca/pdcinput/public/termsofuse" } }, { "@type":"ListItem", "position":20, "item":{ "@type":"Dataset", "name":"Stomach content of 339 age-0 Arctic cod collected in the Canadian Arctic between 2009 and 2018.", "datePublished": "2022-02-21", "dateModified": "2025-03-20", "description":"Gut content of age-0 Boreogadus saida collected in August and September between 2009 and 2018 in the Canadian Arctic were analyzed to study the impact of Arctic warming on feeding success and diet, for inclusion in the following scientific article: Pascale Caissy, Caroline Bouchard, Jennifer L. Herbig, Maxime Geoffroy & Frdric Maps (in preparation). Impacts of changing environmental conditions on age-0 Arctic cod (Boreogadus saida) feeding success in the Canadian Arctic and Greenland Sea. The main goal was to determine whether age-0 Arctic cod could benefit from the rapid warming of the Arctic and identify tipping points where diet could potentially shift.", "url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13264", "keywords": [ "Geographic locations -> Arctic Ocean", "Geographic locations -> Canada", "Natural sciences -> Arctic cod", "Natural sciences -> Fish larvae", "Natural sciences -> Gut content analyses" ], "creator":{ "@type":"Person", "name":"Caroline Bouchard", "contactPoint":{ "@type":"ContactPoint", "contactType":"technical support", "telephone":"+1-418-634-0590 6228", "email":"caroline.bouchard@bio.ulaval.ca" } }, "includedInDataCatalog":{ "@type":"DataCatalog", "name":"polardata.ca" }, "temporalCoverage":"2009-Aug-5/2018-Aug-27", "spatialCoverage":{ "@type":"Place", "geo":{ "@type":"GeoShape", "box":"77.320666 -135.9955 68.29519 -67.00695" } }, "license":"https://www.polardata.ca/pdcinput/public/termsofuse" } } ] }