{ "@context":{"@vocab":"https://schema.org/"}, "@type":"ItemList", "itemListElement": [ { "@type":"ListItem", "position":1, "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":2, "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":3, "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":4, "item":{ "@type":"Dataset", "name":"Monitoring of Contaminants in Ringed Seals from the Canadian Arctic", "datePublished": "2011-07-21", "dateModified": "2026-01-06", "description":"This study on contaminants in ringed seals is part of the Northern Contaminants Program (NCP), which coordinates Canada's action on northern contaminants, including persistent organic pollutants (POPs), both nationally and internationally. The NCP is a multi-disciplinary initiative addressing health, science and communications issues related to contaminants in Canada's Arctic. The goal of this ringed seal monitoring program, led by four northern communities, is to determine the long-term trends of contaminants in seals in relation with their physical conditions as well as changing environmental factors. Outreach into communities involved in this long-term monitoring is also a priority of this project.", "url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=10780", "keywords": [ "Geographic locations -> Canadian High Arctic", "Geographic locations -> Labrador", "Health sciences and contaminants -> Mercury", "Health sciences and contaminants -> PCBs", "Health sciences and contaminants -> Persistent organic pollutants (POPs)", "Natural sciences -> Community-based monitoring", "Natural sciences -> Contaminants", "Natural sciences -> Marine mammals", "Natural sciences -> Ringed seal", "Natural sciences -> Stable isotope analyses", "Northern communities -> Arviat", "Northern communities -> Nain", "Northern communities -> Resolute", "Northern communities -> Sachs Harbour" ], "creator":{ "@type":"Person", "name":"Magali Houde", "contactPoint":{ "@type":"ContactPoint", "contactType":"technical support", "telephone":"+1-514-742-5124", "email":"magali.houde@canada.ca" } }, "includedInDataCatalog":{ "@type":"DataCatalog", "name":"polardata.ca" }, "temporalCoverage":"1991-Jan-1/Not Defined", "spatialCoverage":{ "@type":"Place", "geo":{ "@type":"GeoShape", "box":"82.583333 -125.297599 47.75 -61.695356" } }, "license":"https://www.polardata.ca/pdcinput/public/termsofuse" } }, { "@type":"ListItem", "position":5, "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":6, "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":7, "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":8, "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":9, "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":10, "item":{ "@type":"Dataset", "name":"Zooplankton and ichthyoplankton samples from Lake Melville, Labrador", "datePublished": "2020-02-25", "dateModified": "2026-01-12", "description":"By modifying the seasonal runoff pattern of the Churchill River, in Labrador, the operation of the Muskrat Falls hydroelectric dam could impact estuarine rainbow smelt, trout and salmon downstream. This research project seeks to understand how the operation of the Muskrat Falls dam will modify fish ecology in the 3,000 km2 Lake Melville subarctic estuary. Answering this question is critical to fully understand the impacts of this large-scale hydroelectric project on coastal communities in the region. This dataset provides baseline information for science-based management of fisheries in Lake Melville, where five coastal communities rely heavily on food, social and ceremonial fisheries. Zooplankton sampled with bongo nets provide information on the abundance and composition of prey for early life stages of fish. Ultimately, it will contribute to better predict the effects of future dam developments on fish populations in northern Canada.", "url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13159", "keywords": [ "Geographic locations -> Canada", "Geographic locations -> Lake Melville", "Geographic locations -> Newfoundland", "Natural sciences -> Ichthyoplankton", "Natural sciences -> Larval 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":"2018-Jun-27/2020-Feb-13", "spatialCoverage":{ "@type":"Place", "geo":{ "@type":"GeoShape", "box":"55.0 -61.0 53.0 -58.0" } }, "license":"https://www.polardata.ca/pdcinput/public/termsofuse" } }, { "@type":"ListItem", "position":11, "item":{ "@type":"Dataset", "name":"Active Acoustic data in the Labrador Sea and Canadian Arctic (2017-2025)", "datePublished": "2020-03-23", "dateModified": "2026-01-06", "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 - 2025 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-22/2025-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":12, "item":{ "@type":"Dataset", "name":"Fish samples in the Labrador Sea and Canadian Arctic (2017-2025)", "datePublished": "2020-03-26", "dateModified": "2026-01-06", "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 - 2025 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-22/2025-Oct-31", "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":13, "item":{ "@type":"Dataset", "name":"Ichthyoplankton and zooplankton samples in the Labrador Sea and Canadian Arctic (2017-2025)", "datePublished": "2020-03-26", "dateModified": "2026-01-06", "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 - 2025. 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-23/2025-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":14, "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":15, "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" } }, { "@type":"ListItem", "position":16, "item":{ "@type":"Dataset", "name":"Nunatsiavut Plastics Pollution Data-NG-CLEAR", "datePublished": "2023-01-26", "dateModified": "2025-05-06", "description":"This study uses Inuit hunter and fisher-based sampling design for researching plastic ingestion by species important to community members as sources of wild food in Nunatsiavut. Community-based monitoring is important to Inuit and Northern communities. It gives us the power, knowledge, and control over what research we want to do and see in the North. While plastic pollution is a global issue, plastic profiles can differ significantly from place to place and specific concerns about plastics and approaches to plastic research in Inuit Nunangat are a community affair.Nunatsiavummuit already know there is plastic in the environment and are concerned about its presence--Nain was one of the first places in Canada to create a plastic bag ban in 2009. We are now building a bird's eye view of the different types of plastics, especially microplastics; how they are distributed in our foodways, lands, and waters place by place; how their concentrations and ingestion rates by wild food change by season; and which sources of plastics are most significant and available to change in our communities.", "url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13295", "keywords": [ "Natural sciences -> Microplastics", "Natural sciences -> Plastics", "Northern communities -> Hopedale", "Northern communities -> Makkovik", "Northern communities -> Nain", "Northern communities -> Rigolet", "Social sciences, economics and policy -> Environment surveillance" ], "creator":{ "@type":"Person", "name":"Max Liboiron", "contactPoint":{ "@type":"ContactPoint", "contactType":"technical support", "telephone":"+1-7096935928", "email":"mliboiron@mun.ca" } }, "includedInDataCatalog":{ "@type":"DataCatalog", "name":"polardata.ca" }, "temporalCoverage":"2017-Jul-3/2026-Mar-30", "spatialCoverage":{ "@type":"Place", "geo":{ "@type":"GeoShape", "box":"56.54 -61.69 56.54 -61.69" } }, "license":"https://www.polardata.ca/pdcinput/public/termsofuse" } }, { "@type":"ListItem", "position":17, "item":{ "@type":"Dataset", "name":"Movement ecology and diversity of chars in Kugluktuk, Nunavut", "datePublished": "2023-10-06", "dateModified": "2025-03-13", "description":"This project was co-developed with the Kugluktuk Hunters and Trappers Organization (HTO), and is intended to generate new understanding and knowledge on: i) diversity of chars in the Coppermine River and Coronation Gulf; ii) migration timing and coastal movement of anadromous chars in the Coppermine River and Coronation Gulf areas; and, iii) overwintering and spawning habitats used by chars in the Coppermine River watershed.", "url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13337", "keywords": [ "Natural sciences -> Arctic char", "Natural sciences -> Climate change", "Natural sciences -> Ecology", "Natural sciences -> Food", "Natural sciences -> Movement" ], "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":"2019-May-1/2024-Dec-29", "spatialCoverage":{ "@type":"Place", "geo":{ "@type":"GeoShape", "box":"68.7009 -115.5814 66.7041 -110.3964" } }, "license":"https://www.polardata.ca/pdcinput/public/termsofuse" } }, { "@type":"ListItem", "position":18, "item":{ "@type":"Dataset", "name":"Iceberg Beacon Track Database", "datePublished": "2023-10-29", "dateModified": "2025-12-17", "description":"The Iceberg Tracking Beacon Database was developed to make iceberg and ice island drift trajectories public so that they can be used for research. The database contains data collected by academic, industry and government research groups. We recognize that these geographically and temporally variable drift tracks are more useful in a cohesive dataset that can be used for larger analyses than the original data providers may have anticipated. We encourage those who have beacon tracks of icebergs to submit them for inclusion into subsequent versions of this database.", "url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13340", "keywords": [ "Geographic locations -> Arctic Ocean", "Natural sciences -> Database", "Natural sciences -> Glaciology", "Natural sciences -> Ice drift", "Natural sciences -> Ice island", "Natural sciences -> Iceberg", "Natural sciences -> Oceanography", "Social sciences, economics and policy -> Marine navigation" ], "creator":{ "@type":"Person", "name":"Derek Mueller", "contactPoint":{ "@type":"ContactPoint", "contactType":"technical support", "telephone":"+1-613-520-2600, ext 1984", "email":"derek_mueller@carleton.ca" } }, "includedInDataCatalog":{ "@type":"DataCatalog", "name":"polardata.ca" }, "temporalCoverage":"1997-Aug-16/2024-Sep-7", "spatialCoverage":{ "@type":"Place", "geo":{ "@type":"GeoShape", "box":"82.77 -154.364 46.617 -47.767" } }, "license":"https://www.polardata.ca/pdcinput/public/termsofuse" } }, { "@type":"ListItem", "position":19, "item":{ "@type":"Dataset", "name":"Evaluating temporal trends of microplastics and plastic additives in Arctic ice cores", "datePublished": "2024-04-30", "dateModified": "2025-05-06", "description":"Plastic pollution is a contaminant of emerging concern in northern latitudes at a national and international level. Microplastics have been documented in a variety of abiotic and biotic compartments across the Arctic including surface water, sediments, invertebrates, seabirds, and marine mammals. To date, there are no studies evaluating the historical deposition via long-range atmospheric transport of microplastic and plastic additives in the Canadian Arctic. In collaboration with the Canadian Ice Core Lab at the University of Alberta, we aimed to evaluate microplastic and plastic additives in archived ice cores to help inform future ice core work in the region. Datasets herein were compiled to include sampling and contaminant data for the NCP funded project M-18. This proposed work aims to evaluate historical temporal trends (from years 1900 to 2024) of microplastics, plastic additives, and other CEACs in ice cores from Mller Ice Cap, Axel Heiberg Island, Nunavut. This work will provide a holistic view of microplastics and plastic additive deposition over time into the Arctic environment. Understanding the types of plastics and plastic chemicals that enter the Arctic will directly inform monitoring priorities to help conserve wildlife and protect human health in the North. Results from this work will be presented in an annual focused workshop at the Nunavut Arctic College in Iqaluit. Translated reports will be provided to the GN, NECC, and other territorial organizations concerned with contaminants. Microplastic and chemical data analysis is ongoing and will be updated as data becomes available.", "url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13372", "keywords": [ "Geographic locations -> Arctic", "Health sciences and contaminants -> Organophosphate flame retardants", "Health sciences and contaminants -> Perfluorinated alkylated substances", "Natural sciences -> Abundance", "Natural sciences -> Cryosphere" ], "creator":{ "@type":"Person", "name":"Bonnie Hamilton", "contactPoint":{ "@type":"ContactPoint", "contactType":"technical support", "telephone":"+1-2316222872", "email":"bonniemhamilton@gmail.com" } }, "includedInDataCatalog":{ "@type":"DataCatalog", "name":"polardata.ca" }, "temporalCoverage":"2023-Apr-1/2027-Mar-31", "spatialCoverage":{ "@type":"Place", "geo":{ "@type":"GeoShape", "box":"90.0 -180.0 50.0 180.0" } }, "license":"https://www.polardata.ca/pdcinput/public/termsofuse" } }, { "@type":"ListItem", "position":20, "item":{ "@type":"Dataset", "name":"Total Mercury in Yukon Freshwater Fish", "datePublished": "2024-05-07", "dateModified": "2025-04-14", "description":"This study is a collaborative program aiming to collect information on total mercury concentrations in Yukon freshwater fish. The data collected will be used to capture spatial variability in total mercury and monitor changes in concentrations over time. The data will also be used to inform on the human health risks associated with traditional and local food sources and to update consumption guidelines where appropriate.", "url":"https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=13374", "keywords": [ "Health sciences and contaminants -> Mercury", "Health sciences and contaminants -> Traditional food", "Natural sciences -> Fishes", "Natural sciences -> Freshwaters", "Transdisciplinary -> Harvest" ], "creator":{ "@type":"Person", "name":"Pascale Savage", "contactPoint":{ "@type":"ContactPoint", "contactType":"technical support", "telephone":"+1-867-689-1496", "email":"pascale.savage@gmail.com" } }, "includedInDataCatalog":{ "@type":"DataCatalog", "name":"polardata.ca" }, "temporalCoverage":"2023-Sep-1/2025-Mar-31", "spatialCoverage":{ "@type":"Place", "geo":{ "@type":"GeoShape", "box":"69.6098 -140.9719 60.00677 -123.8357" } }, "license":"https://www.polardata.ca/pdcinput/public/termsofuse" } } ] }