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

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

1,295,257
occurrence records
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