Name: Northern Irish Ground Fish Trawl Survey
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 the Irish Sea.

Citation

Fish trawl survey: Northern Irish Ground Fish Trawl Survey. ICES Database of trawl surveys (DATRAS). The International Council for the Exploration of the Sea, Copenhagen. 2010. Online source: http://ecosystemdata.ices.dk.

Published

September 17, 2025 at 09:34

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_bts_viia

Archive

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

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

163,508

total submitted occurrences

163,071

accepted occurrences

127

taxa

115

species

Taxa

Missing and invalid fields

Field	Missing	Invalid
coordinateUncertaintyInMeters		163,508	100.0%
minimumDepthInMeters	163,508		100.0%
scientificNameID	437		0.3%

Quality flags

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

Flag	Records
NO_MATCH	437	0.3%
WORMS_ANNOTATION_REJECT_AMBIGUOUS	437	0.3%
DEPTH_EXCEEDS_BATH	79	0.0%
ON_LAND	79	0.0%

Northern Irish Ground Fish Trawl Survey

Taxa

Missing and invalid fields

Quality flags

Measurement types

DNA derived data