Dataset

ICES North Sea International Bottom Trawl Survey for commercial fish species

EurOBIS Open in mapper Explore occurrences

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

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

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
occurrence records
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 Dropped 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%

Measurement types

DNA derived data