84a8b5b8-3d2b-4b75-ad44-3ceda6bcf9b9 eng; CAN Polar Data Catalogue Canadian Cryospheric Information Network (519) 888-4567 x32689 200 University Avenue West, University of Waterloo Waterloo Ontario N2L 3G1 Canada pdc@uwaterloo.ca 2022-04-08T13:00:30 North American Profile of ISO 19115:2003 2009-01-01 https://www.polardata.ca/pdcsearch/PDCSearchDOI.jsp?doi_id=232 Seasonal study of nutrients and organic matter in first-year sea ice on the Mackenzie shelf 2014-11-18 Michel Gosselin Magdalena Różańska Andrea Riedel Christine Michel Michel Poulin Riedel (2006) Thèse de doctorate (PhD) Université du Québec à Rimouski Riedel et al. (ms) Grazing of large-sized bacteria by sea-ice heterotrophic protists on the Mackenzie shelf during the winter-spring transition. AME Riedel et al. (2006) Seasonal study of sea-ice exopolymeric substances (EPS) on the Mackenzie shelf: implications for the transport of sea-ice bacteria and algae. AME 45:195-206 First-year sea ice was sampled on 36 occasions near the overwintering site of the CCGS Amundsen during the Canadian Arctic Shelf Exchange Study (CASES). Sea-ice and associated surface water samples were taken every 3 to 5 days between 24 February and 20 June 2004. Surface waters and the bottom 3-5 cm of ice cores were routinely analyzed for: salinity, pH, nutrients (NH4, NO2, NO3, Si(OH)4, and PO4), dissolved organic carbon and nitrogen (DOC, DON), exopolymeric substances (EPS), particulate inorganic carbon (PIC), particulate organic carbon and nitrogen (POC, PON), total and >5 µm chlorophyll a and phaeopigments, bacterial abundances/biomass, protist (excluding diatoms) abundances/biomass and ice algal/phytoplankton taxonomy. This data set also includes vertical and spatial profiles of ice algal distribution as well as measurements of sea-ice primary production, bacterivory and sea-ice algal and bacterial sinking velocities. This study was conducted to assess sea-ice biochemical variables and processes during the entire winter-spring transition on an Arctic shelf. The data will contribute to our understanding of the effects of climate change associated with first-year sea ice and the productive Arctic shelves. Polar Data Catalogue Canadian Cryospheric Information Network (519) 888-4567 x32689 200 University Avenue West, University of Waterloo Waterloo Ontario N2L 3G1 Canada pdc@uwaterloo.ca polardata.ca http https://metadata.arice-h2020.eu/geonetwork/srv/api/records/84a8b5b8-3d2b-4b75-ad44-3ceda6bcf9b9/attachments/map.png Arctic Bacteria Chlorophyll Dissolved organic carbon (DOC) Ice Ice algae Mackenzie Shelf Marine ecology Taxonomy Polar Data Catalogue Thesaurus (Canada) 2021-06-02 Canadian Cryospheric Information Network (519) 888-4567 x32689 200 University Avenue West, University of Waterloo Waterloo Ontario N2L 3G1 Canada pdc@uwaterloo.ca polardata.ca http https://www.polardata.ca/pdcinput/public/keywordlibrary Franklin Bay (LAIQA), Mackenzie Shelf Terms of Use of the Polar Data Catalogue: https://www.polardata.ca/pdcinput/public/termsofuse eng; CAN environment -126.26 -126.26 70.04 70.04 Time period can be either covered by the content of the dataset or the date when the data has been collected. 2004-02-24 2004-06-20 Summary: Not Applicable Research Program(s): CASES. For further information: michel_gosselin@uqar.qc.ca false Digital file 1.0 Polar Data Catalogue Canadian Cryospheric Information Network (519) 888-4567 x32689 200 University Avenue West, University of Waterloo Waterloo Ontario N2L 3G1 Canada pdc@uwaterloo.ca This metadata was generated from the PDC metadata database at 2021-06-02 Polar Data Catalogue Canadian Cryospheric Information Network (519) 888-4567 x32689 200 University Avenue West, University of Waterloo Waterloo Ontario N2L 3G1 Canada pdc@uwaterloo.ca