028eda37-afc7-4ad9-88b6-1f1849ef39ec 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 2022-04-08T13:00:56 North American Profile of ISO 19115:2003 2009-01-01 https://www.polardata.ca/pdcsearch/PDCSearchDOI.jsp?doi_id=13167 Fish samples in the Labrador Sea and Canadian Arctic (2017-2019) 2020-04-01 Geoffroy, Maxime Hiscock, Wade Aubry, Cyril Deslauriers, David Fisher, Jonathan Fortier, Louis Robert, Dominique Geoffroy, M., Fisher, J., Robert, D., Fortier, L., Deslauriers, D., Aubry, C., & Hiscock,W. (2020). Fish samples in the Labrador Sea and Canadian Arctic (2017-2019). Waterloo, Canada: Canadian Cryospheric Information Network (CCIN). (Unpublished Data). The dataset is composed of adult fish species captured during the ArcticNet cruise aboard the CCGS Amundsen from 2017 to 2019. Pelagic fish were caught with an Isaacs-Kidd Midwater Trawl (IKMT, 9-m2 rectangular mouth aperture with mesh sizes of 11 mm in the first section and 5 mm in the last section). It was deployed from the surface to depths targeting possible aggregation of fish as recorded by the acoustic echosounder from the ship. Demersal and benthic fish were sampled with a bottom beam trawl (3-m2 rectangular aperture with a headline and a footrope of 4.27 m and a cod-end mesh of 9.5 mm) deployed on the seafloor. The pelagic and bottom trawls were towed at ~3 knots for 10 to 20 min. All fish collected by the trawls were measured and identified at least to the family level before freezing at -20°C. 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 - 2019 to establish baseline knowledge on the occurrence and distribution of Arctic and boreal fish and zooplankton in Northern Labrador and the Eastern 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. 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/028eda37-afc7-4ad9-88b6-1f1849ef39ec/attachments/map.png Abundance Biodiversity Canada Canadian Arctic Archipelago Ecology Fishes Labrador Sea 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 Labrador Sea, Canada - ABAVX, and Canadian Arctic Terms of Use of the Polar Data Catalogue: https://www.polardata.ca/pdcinput/public/termsofuse eng; CAN environment -110 -60 52 80 Time period can be either covered by the content of the dataset or the date when the data has been collected. 2017-06-30 2019-09-29 Summary: Not applicable Research Program(s): ArcticNet,OFI. For further information: maxime.geoffroy@mi.mun.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