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DFO Pacific Region Groundfish Synoptic Trawl Surveys
Citation
Rutherford, K. 2011. DFO Pacific Region Groundfish Synoptic Trawl Surveys. In: GFBio, Fisheries and Oceans Canada PBS groundfish biological database. OBIS Canada Digital Collections. OBIS Canada, Bedford Institute of Oceanography, Dartmouth, Nova Scotia, Canada, Version 1, Digital, retrieved from http://iobis.org/.

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Description
The DFO Pacific groundfish synoptic trawl surveys began in 2003 and are planned to continue indefinitely. Four study areas are defined within the spatial extents outlined here: west coast Vancouver Island (WCVI), Queen Charlotte Sound (QCS), Hecate Strait (HS) and west coast Haida Gwaii (WCHG). This dataset is the OBIS version of the stock assessment survey. more

The DFO Pacific groundfish synoptic trawl surveys began in 2003 and are planned to continue indefinitely. Four study areas are defined within the spatial extents outlined here: west coast Vancouver Island (WCVI), Queen Charlotte Sound (QCS), Hecate Strait (HS) and west coast Haida Gwaii (WCHG). These areas together provide comprehensive coverage of the continental shelf and upper slope of the British Columbia coast. After the initial start up years, these surveys were conducted on a rotating biennial schedule with the Queen Charlotte Sound and Hecate Strait surveys conducted in odd-numbered years and the west coast Vancouver Island and west coast Haida Gwaii surveys conducted in even-numbered years. Each study area is stratified by depth and divided into a contiguous grid of 4 km2 blocks and from these blocks we randomly select a set of fishing locations allocated by depth strata. Catches of fish and invertebrates are completely sorted, weighed and identified to the lowest taxonomic level possible. This dataset is the OBIS version of the stock assessment survey. These data are for display on the OBIS portal and associated mapping programs and for download for end-user analysis. OBIS Schema concepts implemented in this data set are: Res_Name, DateLastModified, InstitutionCode, CollectionCode, ScientificName, CatalogNumber, Latitude, Longitude, BasisOfRecord, Kingdom, Genus, Species, YearCollected, MonthCollected, DayCollected, TimeOfDay, TimeZone, MinimumDepth, MaximumDepth, ObservedIndividualCount, Phylum, ClassName, OrderName, Family, Subgenus, Subspecies, ScientificNameAuthor, FieldNumber, StartYearCollected, EndYearCollected, StartMonthCollected, EndMonthCollected, StartDayCollected, EndDayCollected, JulianDay, StartJulianDay, EndJulianDay, ObservedWeight, Notes (TSN: value). The original dataset, provided by OBIS Canada, contains all distribution records. The dataset in OBIS Seamap is a subset of the original dataset, only containing marine mammal, seabird and/or sea turtle records.

Scope
Themes:
Biology > Benthos, Biology > Fish, Biology > Invertebrates, Biology > Mammals
Keywords:
Marine, INE, Canada, British Columbia, Hecate Strait, INE, Canada, British Columbia, Queen Charlotte I., INE, Canada, British Columbia, Vancouver I., Cetacea, Invertebrata, Pisces

Geographical coverage
INE, Canada, British Columbia, Hecate Strait [Marine Regions]
INE, Canada, British Columbia, Queen Charlotte I. [Marine Regions]
INE, Canada, British Columbia, Vancouver I. [Marine Regions]

Temporal coverage
From 2003 on [In Progress]

Taxonomic coverage
Cetacea [WoRMS]
Invertebrata
Pisces [WoRMS]

Contributors
Government of Canada; Department of Fisheries and Oceans (DFO), moredata owner
Government of Canada; Department of Fisheries and Oceans; Bedford Institute of Oceanography (BIO), moredata provider

Related datasets
Published in:
OBIS-Canada: Canadian Ocean Biogeographic Information System, more
OBIS-SEAMAP: Spatial Ecological Analysis of Megavertebrate Populations, more


Dataset status: In Progress
Data type: Data
Data origin: Research: field survey
Metadatarecord created: 2012-11-19
Information last updated: 2016-06-29
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