Dataset

ICES Baltic International Trawl Survey for commercial fish species

EurOBIS MeasurementOrFact Open in mapper Explore occurrences

Baltic International Bottom Trawl Survey dataset includes age- and length-based catch per unit effort data for commercial fish species in ICES Baltic sub-divisions.

Citation
Fish trawl survey: ICES Baltic International 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
September 17, 2025 at 09:52
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_bits
Archive
https://ipt.vliz.be/eurobis/archive.do?r=ices_datras_bits

Contacts

Neil Holdsworth
International Council for the Exploration of the Sea

Maria Makri
International Council for the Exploration of the Sea

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

1,295,257
total submitted occurrences
1,295,165
accepted occurrences
240,496
measurements and facts
179
taxa
153
species

Taxa

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 1,295,257
100.0%
decimalLatitude 79
0.0%
decimalLongitude 79
0.0%
eventDate 79
0.0%
maximumDepthInMeters 956
0.1%
minimumDepthInMeters 79
0.0%

Quality flags

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

Flag Dropped Records
DEPTH_EXCEEDS_BATH 826
0.1%
ON_LAND 215
0.0%
NO_COORD 79
0.0%
NO_DEPTH 79
0.0%
NOT_MARINE 13
0.0%

Measurement types

DNA derived data