Newfoundland and Labrador Region Multi-Species Survey Trawl-Mounted CTD Profiles

The Department of Fisheries and Oceans Canada (DFO), Newfoundland and Labrador Region, has undertaken stratified-random multi-species surveys in portions of Northwest Atlantic Fisheries Organization (NAFO) subareas 2 and 3 since the early 1970’s. The current survey design covers an expansive spatial area, spanning six NAFO divisions (2HJ3KLNO) and 515,000 km2 in the autumn and four NAFO divisions (3LNOP) and 324,000 km2 in the spring. The survey aims at determining the distribution and abundance of commercial and non-commercial fish and invertebrate species with respect to position, depth, and temperature, and to collect biological samples.

In 1989 DFO developed a shock-absorbing CTD sled containing a Seabird model SBE-19 CTD that could be mounted on a trawl, which is now the primary instrument used to collect physical oceanographic data (e.g., T, S) during multi-species surveys in NL region. The package attached to the trawl head-ropes records time, water pressure, temperature, and conductivity for the duration of the fishing set. In the event of instrument failure an expendable bathythermograph (XBT) is deployed.

In addition, this survey samples the high-frequency station, Station 27, in collaboration with the Atlantic Zone Monitoring Program (AZMP).

This record includes only hydrographic/CTD data collected during the spring and autumn multi-species surveys, conducted between 1995 to present.

Access and Use

Licence: Open Government Licence 2.0 (Canada)

Data and Resources

Citation

Keywords

Dataset extent

Metadata Reference Date(s) April 29, 2024 (Revision)
May 01, 2024 (Publication)
Data Reference Date(s) September 25, 1995 (Creation)
Frequency of Update As Needed

Responsible Party 1
Name
Environmental Data Section (MEDS), Marine
Affiliation
Fisheries and Oceans Canada
Role
Owner
Responsible Party 2
Name
Snook, Steve
Affiliation
Fisheries and Oceans Canada
Email
Stephen.Snook@dfo-mpo.gc.ca
Role
  • Custodian
  • Point of Contact
Responsible Party 3
Name
Oceanography, NL
Affiliation
Fisheries and Oceans Canada
Email
NL-Oceanography@dfo-mpo.gc.ca
Role
Distributor

Field Value
Ocean Variables
  • Sea Ice
  • Sea State
  • Sea Surface Salinity
  • Sea Surface Temperature
  • Subsurface Salinity
  • Subsurface Temperature
  • Other
Climate Variables Sea Ice
Scope Dataset
Status On Going
Maintenance Note Generated from https://cioos-siooc.github.io/metadata-entry-form#/en/atlantic/YwzkXxYNxzOntkCQpeUCqqSVSQr2/-Nrk9yD_pltdBuUPXYWU
Spatial Extent { "coordinates": [ [ [ -57.662, 47.557 ], [ -58.822, 46.842 ], [ -50.472, 42.461 ], [ -48.734, 43.592 ], [ -46.873, 45.923 ], [ -46.405, 48.32 ], [ -49.379, 48.864 ], [ -49.646, 51.405 ], [ -52.525, 54.828 ], [ -59.355, 57.879 ], [ -61.838, 57.489 ], [ -58.463, 55.036 ], [ -55.661, 53.473 ], [ -55.966, 50.262 ], [ -53.281, 49.271 ], [ -52.604, 47.571 ], [ -53.003, 46.556 ], [ -56.066, 46.842 ], [ -57.662, 47.557 ] ] ], "type": "Polygon" }
North Bounding Latitude 42.461
South Bounding Latitude 57.879
East Bounding Longitude -46.405
West Bounding Longitude -61.838
Temporal Extent
Begin
1995-09-25
Vertical Extent
Min
1.0
Max
1650.0
Default Locale English
Included in Data Catalogue
Included in Data Catalogue 1
Name
CIOOS Atlantic
Description
 
URL
https://catalogue.cioosatlantic.ca