NAFO fishing division 4T Herring Spawning Grounds Acoustic Survey

In 2015, a spawning ground acoustic survey that follows the design of the fishery-independent acoustic survey was initiated. This survey is the result of a partnership between DFO and fishery associations. The survey design uses random parallel transects within predefined strata. Surveys are conducted by fishermen in the fall fishing season according to protocols developed by DFO. The survey is conducted at night, during the weekend fishery closures except in Herring fishing area 16C and 16E in 2015 to 2017, where this region didn’t have weekend closures. The spawning ground acoustic survey is meant to provide a nightly estimate of spawning biomass among regions. It is analyzed in the same manner as the fishery-independent acoustic survey. The catches from the experimental nets are used to calibrate the spawning group specific target strength in order to obtain the nightly estimates of spawning biomass.

Date ( RI_366 ): 2015

Date ( RI_367 ): 2023-10-03

RI_419

Government of Canada; Fisheries and Oceans Canada - François Turcotte ( Aquatic Science Biologist )

343 Université Ave , Moncton , New Brunswick , E1C 5K4 , Canada

506-851-6249

RI_409

Government of Canada; Fisheries and Oceans Canada - Pablo Vergara ( Aquatic Science Biologist – Data manager )

343 Université Ave , Moncton , New Brunswick , E1C 5K4 , Canada

506-851-2369

RI_409

Government of Canada; Fisheries and Oceans Canada - Nicolas Rolland ( Aquatic Science Biologist )

343 Université Ave , Moncton , New Brunswick , E1C 5K4 , Canada

506-851-2035

RI_409

Government of Canada; Fisheries and Oceans Canada - Rachel DeJong ( Aquatic Science Biologist )

343 Université Ave , Moncton , New Brunswick , E1C 5K4 , Canada

506-851-9532

RI_409

Government of Canada; Fisheries and Oceans Canada - Laurie Maynard ( Herring Biologist (BI-03) )

343 Université Ave , Moncton , New Brunswick , E1C 5K4 , Canada

5062694274

Purpose: Used as an abundance index for use in stock assessment

Status: onGoing; enContinue RI_596

Maintenance and update frequency: annually; annuel RI_539

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 )

ECHO SOUNDERS
Anchovies/Herrings
Population Dynamics
Fisheries
Trawl

Integrated Taxonomic Information System (ITIS) Système d'information taxonomique intégré (SITI) ( RI_528 )

Clupea harengus harengus

Government of Canada Core Subject Thesaurus Thésaurus des sujets de base du gouvernement du Canada ( RI_528 )

Fisheries resources
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: Please contact the data custodians before attempting to use this information in support of any kind of ecological analyses.

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: 2015

Description: NAFO Division 4T

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Supplemental Information: PARAMETERS COLLECTED:

size and age measurement (biological); acoustic tracking (ecological); species counts (ecological)

SAMPLING METHODS:

Turcotte, F., McDermid, J.L., DeJong, R., Landry, L. and Rolland, N. 2022. Biomass indices of NAFO Division 4TVn fall spawning Atlantic Herring (Clupea harengus) from hydroacoustic surveys on spawning grounds. DFO Can. Sci. Advis. Sec. Res. Doc. 2022/046. iv + 18 p.

Rolland, N., Turcotte, F., McDermid, J.L., DeJong, R.A., et Landry, L. 2022. Assessment of the NAFO Division 4TVn southern Gulf of St. Lawrence Atlantic Herring (Clupea harengus) in 2020-2021. DFO Can. Sci. Advis. Sec. Res. Doc. 2022/068. xii + 142 p. - Annex C

CITATION LIST:

Turcotte, F., McDermid, J.L., DeJong, R.A., Landry, L. et Rolland, N.. 2022. Biomass indices of NAFO Division 4TVn fall spawning Atlantic Herring (Clupea harengus) from hydroacoustic surveys on spawning grounds.. DFO Can Res. Doc. 2022/046.

Reference system identifier: http://www.epsg-registry.org / EPSG:4269

Distribution format

CSV ( n/a )

RI_414

Government of Canada; Fisheries and Oceans Canada - Nicolas Rolland ( Aquatic Science Biologist )

343 Université Ave , Moncton , New Brunswick , E1C 5K4 , Canada

506-851-2035

OnLine resource: 4T Herring Spawning Grounds Biomass Index ( HTTPS )
Dataset;CSV;eng,fra

OnLine resource: 4T Herring Spawning Grounds Acoustic Surveys Transects ( HTTPS )
Dataset;SHP;eng

OnLine resource: 4T Herring Spawning Grounds Acoustic Survey Transects ( ESRI REST: Map Service )
Web Service;ESRI REST;eng

OnLine resource: 4T Herring Spawning Grounds Acoustic Survey Transects ( ESRI REST: Map Service )
Web Service;ESRI REST;fra

OnLine resource: 4T Herring Spawning Grounds Acoustic Surveys - Data Dictionary ( HTTPS )
Supporting Document;CSV;eng,fra

File identifier: 5c79025c-5ebe-11ee-bd12-d17b9d44bf6a XML

Metadata language: eng; CAN

Character set: utf8; utf8 RI_458

Hierarchy level: dataset; jeuDonnées RI_622

Date stamp: 2025-02-05T12:44:13.565Z

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 - Nicolas Rolland ( Aquatic Science Biologist )

343 Université Ave , Moncton , New Brunswick , E1C 5K4 , Canada

506-851-2035

Overviews

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Spatial extent

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Provided by

Associated resources

Not available