• Arctic SDI catalogue
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NAFO Division 4T Sentinel Trawl Survey Data

PURPOSE:

Since 2003, a standardized otter trawl survey was conducted in August by commercial fishing vessels throughout the southern Gulf of St. Lawrence (NAFO Division 4T). The primary objective of this survey is to obtain abundance indices for the major commercial groundfish resources in the area.

DESCRIPTION:

Tow, catch, and length frequency for fish caught during the August sentinel surveys in the southern Gulf of St. Lawrence (NAFO Division 4T). Abundance indices and spatial distribution patterns of commercial groundfish.

Note: Due to delays caused by logistic complexities and Covid, the project did not take place in 2020

PARAMETERS COLLECTED:

Abundance estimates (ecological); distribution (ecological); species counts (ecological); gear (fishing); vessel information (fishing); point (spatial).

NOTES ON QUALITY CONTROL:

Scientific names listed in the survey species list have been mapped to recognized standards - marine taxa have been mapped to the World Register of Marine Species (WoRMS) using their online taxon match tool. All sampling locations were plotted on a map to perform a visual check confirming that the latitude and longitude coordinates were within the described sampling area.

SAMPLING METHODS:

For additional information on the sampling methods and supporting literature, please refer to the references provided

USE LIMITATION:

To ensure scientific integrity and appropriate use of the data, we would encourage you to contact the data custodian.

Simple

Date ( RI_366 )
2003-08-01
Date ( RI_367 )
2020-04-04
RI_409
  Government of Canada; Fisheries and Oceans Canada - Daniel Ricard ( Aquatic Science Biologist )
343 Université Ave , Moncton , New Brunswick , E1C 5K4 , Canada
506-377-9527
RI_419
  Government of Canada; Fisheries and Oceans Canada - Doug P Swain ( Scientist, Marine Fish Ecosystems )
343 Université Ave , Moncton , New Brunswick , E1C 5K4 , Canada
506-851-6237
Purpose
Since 2003, a standardized otter trawl survey was conducted in August by commercial fishing vessels throughout the southern Gulf of St. Lawrence (NAFO Division 4T). The primary objective of this survey is to obtain abundance indices for the major commercial groundfish resources in the area.
Status
completed; complété RI_593
Maintenance and update frequency
notPlanned; nonPlanifié RI_542
NASA/Global Change Master Directory (GCMD) Science Keywords Version 6.0.0.0.0 NASA/Global Change Master Directory (GCMD) Science Keywords Version 6.0.0.0.0 ( RI_528 )
  • Fisheries
Integrated Taxonomic Information System (ITIS) Système d'information taxonomique intégré (SITI) ( RI_528 )
  • Gadus morhua
  • Hippoglossoides platessoides
  • Limanda ferruginea
  • Pseudopleuronectes americanus
  • Urophycis tenuis
Government of Canada Core Subject Thesaurus Thésaurus des sujets de base du gouvernement du Canada ( RI_528 )
  • Fish
  • Fisheries
  • Oceans
DFO Areas Zones du MPO ( RI_525 )
  • Gulf of St. Lawrence
Use limitation
Open Government Licence - Canada (http://open.canada.ca/en/open-government-licence-canada)
Access constraints
license; licence RI_606
Use constraints
license; licence RI_606
Use limitation
To ensure scientific integrity and appropriate use of the data, we would encourage you to contact the data custodian.
Use limitation
No limitations
Classification
unclassified; nonClassifié RI_484
Spatial representation type
textTable; texteTable RI_637
Metadata language
eng; CAN
Character set
utf8; utf8 RI_458
Topic category
  • Biota
Begin date
2003-08-01
End date
2019-08-19
Description
NAFO fishing division 4T
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Reference system identifier
http://www.epsg-registry.org / EPSG:4326
Distribution format
  • CSV ( n/a )

  • PDF ( n/a )

RI_414
  Government of Canada; Fisheries and Oceans Canada - Daniel Ricard ( Aquatic Science Biologist )
343 Université Ave , Moncton , New Brunswick , E1C 5K4 , Canada
506-377-9527
OnLine resource
NAFO Fishing Division 4T Sentinel Trawl Survey Data ( HTTPS )

Dataset;CSV;eng,fra

OnLine resource
Data dictionary ( HTTPS )

Supporting Document;CSV;eng,fra

OnLine resource
Supplementary citation list ( HTTPS )

Supporting Document;PDF;eng,fra

OnLine resource
NAFO Division 4T sentinel trawl surveys map service ( ESRI REST: Map Service )

Web Service;ESRI REST;eng

OnLine resource
NAFO Division 4T sentinel trawl surveys map service ( ESRI REST: Map Service )

Web Service;ESRI REST;fra

File identifier
3baf60cc-8441-ac1b-e7ca-32c98b7555bb XML
Metadata language
eng; CAN
Character set
utf8; utf8 RI_458
Hierarchy level
dataset; jeuDonnées RI_622
Date stamp
2025-12-23T15:15:22.306675Z
Metadata standard name
North American Profile of ISO 19115:2003 - Geographic information - Metadata
Metadata standard version
CAN/CGSB-171.100-2009
RI_414
  Government of Canada; Fisheries and Oceans Canada - Daniel Ricard ( Aquatic Science Biologist )
343 Université Ave , Moncton , New Brunswick , E1C 5K4 , Canada
506-377-9527
 
 

Overviews

overview
Sentinel Survey

Spatial extent

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W
thumbnail


Keywords


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Associated resources

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