Name: ICES North Sea International Bottom Trawl Survey for commercial fish species
License: This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License

The dataset includes age- and length-based catch per unit effort data for commercial fish species in ICES roundfish areas.

Citation

Fish trawl survey: ICES North Sea International Bottom Trawl Survey for commercial fish species. ICES Database of trawl surveys (DATRAS). The International Council for the Exploration of the Sea, Copenhagen. 2010. Online source: http://ecosystemdata.ices.dk.

Published

March 09, 2023 at 02:00

License

This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License

URL

http://ipt.vliz.be/eurobis/resource?r=ices_datras_ns_ibts

Archive

https://ipt.vliz.be/eurobis/archive.do?r=ices_datras_ns_ibts

Contacts

Neil Holdsworth
International Council for the Exploration of the Sea

Flanders Marine Institute (VLIZ)
Flanders Marine Institute (VLIZ)

International Council for the Exploration of the Sea
International Council for the Exploration of the Sea

2,960,513

total submitted occurrences

2,960,129

accepted occurrences

297

taxa

215

species

Taxa

Missing and invalid fields

Field	Missing	Invalid
coordinateUncertaintyInMeters		2,960,513	100.0%
minimumDepthInMeters	2,960,513		100.0%
scientificNameID	183		0.0%

Quality flags

The OBIS data quality flags are documented at https://github.com/iobis/obis-qc.

Flag	Records
DEPTH_EXCEEDS_BATH	2,861	0.1%
ON_LAND	922	0.0%
NOT_MARINE	201	0.0%
NO_MATCH	183	0.0%
WORMS_ANNOTATION_REJECT_AMBIGUOUS	183	0.0%
NO_ACCEPTED_NAME	35	0.0%

ICES North Sea International Bottom Trawl Survey for commercial fish species

Taxa

Missing and invalid fields

Quality flags

Measurement types

DNA derived data