ARICE Metadata Catalogue
Fish samples in the Labrador Sea and Canadian Arctic (2017-2019)
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.
Simple
- Date (Publication)
- 2020-04-01
- Other citation details
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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 (Unpublished Data).
- Purpose
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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.
- Status
- Under development
Canadian Cryospheric Information Network
-Polar Data Catalogue
200 University Avenue West, University of Waterloo
,Waterloo
,Ontario
,N2L 3G1
,Canada
polardata.ca
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Polar Data Catalogue Thesaurus (Canada)
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Abundance
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Biodiversity
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Canada
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Canadian Arctic Archipelago
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Ecology
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Fishes
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Labrador Sea
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- Place
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Labrador Sea, Canada - ABAVX, and Canadian Arctic
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- Access constraints
- Other restrictions
- Use constraints
- Other restrictions
- Other constraints
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Terms of Use of the Polar Data Catalogue: https://www.polardata.ca/pdcinput/public/termsofuse
- Metadata language
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eng; CAN
- Topic category
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- Environment
))
- Begin date
- 2017-06-30
- End date
- 2019-09-29
- Supplemental Information
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Summary: Not applicable Research Program(s): ArcticNet,OFI. For further information: maxime.geoffroy@mi.mun.ca maxime.geoffroy@mi.mun Summary: Not applicable Research Program(s): ArcticNet,OFI. For further information: maxime.geoffroy@mi.mun.ca
- Distribution format
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Digital file
(1.0
)
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Canadian Cryospheric Information Network
-Polar Data Catalogue
200 University Avenue West, University of Waterloo
,Waterloo
,Ontario
,N2L 3G1
,Canada
- Included with dataset
- No
- File identifier
- 028eda37-afc7-4ad9-88b6-1f1849ef39ec XML
- Metadata language
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eng; CAN
- Character set
- UTF8
- Hierarchy level
- Dataset
- Date stamp
- 2022-04-08T13:00:56
- Metadata standard name
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North American Profile of ISO 19115:2003
- Metadata standard version
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2009-01-01
Canadian Cryospheric Information Network
-Polar Data Catalogue
200 University Avenue West, University of Waterloo
,Waterloo
,Ontario
,N2L 3G1
,Canada
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