Groundfish Synoptic Bottom Trawl Surveys

Groundfish Synoptic Bottom Trawl Surveys Catch, effort, location (latitude, longitude), relative abundance indices, and associated biological data from groundfish multi-species bottom trawl surveys in Queen Charlotte Sound (QCS), Hecate Strait (HS), West Coast Vancouver Island (WCVI), West Coast Haida Gwaii (WCHG) and the Strait of Georgia (SOG), British Columbia. Introduction This is a set of long-term and coordinated surveys that together cover the continental shelf and upper slope of most of the British Columbia coast. The objectives of these surveys are to provide fishery-independent abundance indices of all demersal fish species available to bottom trawling and to collect biological samples of selected species. The surveys follow a random depth-stratified design and the sampling units are 2 km by 2 km blocks. The synoptic bottom trawl surveys are conducted by Fisheries and Oceans Canada (DFO) in collaboration with the Canadian Groundfish Research and Conservation Society (CGRCS), a non-profit society composed of participants in the British Columbia commercial groundfish trawl fishery. The Queen Charlotte Sound and West Coast Haida Gwaii surveys are conducted under collaborative agreements, with the CGRCS providing chartered commercial fishing vessels and field technicians, while DFO provides in-kind contributions for running the surveys including personnel and equipment. The Hecate Strait, West Coast Vancouver Island, and Strait of Georgia surveys are conducted by DFO and have typically taken place on the Canadian Coast Guard research vessel W.E. Ricker. In years when the W.E. Ricker has not been available, the Hecate Strait and West Coast Vancouver Island surveys have taken place on chartered industry vessels. 2025-02-17 Fisheries and Oceans Canada shelee.hamilton@dfo-mpo.gc.ca Nature and EnvironmentScience and TechnologyPacific OceanNorth PacificBritish ColumbiaQueen Charlotte SoundBottom TrawlGroundfishFishery Independent DataRelative AbundanceRelative BiomassCanadian Groundfish Research and Conservation SocietyCGRCSCollaborative AgreementCommercial SpeciesStock AssessmentSurveysResources managementFisheriesOceansFishMarine biology Reference Information - Synoptic Bottom Trawl SurveysHTML https://api-proxy.edh-cde.dfo-mpo.gc.ca/catalogue/records/a278d1af-d567-4964-a109-ae1e84cbd24a/attachments/REFERENCE%20INFORMATION.htm Strait of Georgia Synoptic Bottom Trawl SurveyHTML https://open.canada.ca/data/en/dataset/d880ba18-8790-41a2-bf73-e9247380759b Hecate Strait Synoptic Bottom Trawl SurveyHTML https://open.canada.ca/data/en/dataset/780a1c02-1f9c-4994-bc70-a0e9ef8e3968 Queen Charlotte Sound Synoptic Bottom Trawl SurveyHTML https://open.canada.ca/data/en/dataset/86af7918-c2ab-4f1a-ba83-94c9cebb0e6c West Coast Vancouver Island Synoptic Bottom Trawl SurveyHTML https://open.canada.ca/data/en/dataset/557e42ae-06fe-426d-8242-c3107670b1de West Coast Haida Gwaii Synoptic Bottom Trawl SurveyHTML https://open.canada.ca/data/en/dataset/5ee30758-b1d6-49fe-8c4e-5136f4b39ad1 Data DictionaryHTML https://api-proxy.edh-cde.dfo-mpo.gc.ca/catalogue/records/a278d1af-d567-4964-a109-ae1e84cbd24a/attachments/Data_Dictionary_Groundfish_Synoptic_Surverys.htm

Catch, effort, location (latitude, longitude), relative abundance indices, and associated biological data from groundfish multi-species bottom trawl surveys in Queen Charlotte Sound (QCS), Hecate Strait (HS), West Coast Vancouver Island (WCVI), West Coast Haida Gwaii (WCHG) and the Strait of Georgia (SOG), British Columbia.

Introduction

This is a set of long-term and coordinated surveys that together cover the continental shelf and upper slope of most of the British Columbia coast. The objectives of these surveys are to provide fishery-independent abundance indices of all demersal fish species available to bottom trawling and to collect biological samples of selected species. The surveys follow a random depth-stratified design and the sampling units are 2 km by 2 km blocks.

The synoptic bottom trawl surveys are conducted by Fisheries and Oceans Canada (DFO) in collaboration with the Canadian Groundfish Research and Conservation Society (CGRCS), a non-profit society composed of participants in the British Columbia commercial groundfish trawl fishery. The Queen Charlotte Sound and West Coast Haida Gwaii surveys are conducted under collaborative agreements, with the CGRCS providing chartered commercial fishing vessels and field technicians, while DFO provides in-kind contributions for running the surveys including personnel and equipment. The Hecate Strait, West Coast Vancouver Island, and Strait of Georgia surveys are conducted by DFO and have typically taken place on the Canadian Coast Guard research vessel W.E. Ricker. In years when the W.E. Ricker has not been available, the Hecate Strait and West Coast Vancouver Island surveys have taken place on chartered industry vessels.

Data and Resources

Contact Information

Delivery Point: Pacific Biological Station, 3190 Hammond Bay Road

City: Nanaimo

Postal Code: V9T 6N7

Electronic Mail Address: maria.cornthwaite@dfo-mpo.gc.ca

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