ICES Fish stomach contents dataset

Neil Holdsworth, International Council for the Exploration of the Sea (ICES)

Dataset credit



Primary contact Neil Holdsworth International Council for the Exploration of the Sea (ICES)
Secondary contact EurOBIS Data Management Team Flanders Marine Institute (VLIZ)


ICES Fish stomach contents dataset (STOMACH). The International Council for the Exploration of the Sea, Copenhagen. 2010. Online source:
Holdsworth, N. 2020. ICES Fish stomach contents dataset. Data downloaded from OBIS-SEAMAP ( on yyyy-mm-dd and originated from OBIS (


The Fish predator/prey database (stomach database) contains data covering 11 countries. A total of 217 399 stomachs are reported in the North Sea data. Eight predator species were analysed and 854 NODC prey codes have been reported
Year of the Stomach content data
The first year of the stomach ran in 1981 and covered a handful of species in the North Sea. Follow up data collection was performed in 1985-1986, and a decade later in 1991 the 2nd year of the stomach ran. The data were collected as part of an ICES initiative and the results and analysis were presented in two cooperative reports (CRR 164 and CRR 219).

Geographical Coverage
There are 2 datasets related to the year of the stomach, North Sea and Baltic respectively. The map to the right shows the distribution of the North Sea records. Currently, only the North Sea dataset is available online.

About this dataset
While ICES has made every effort to ensure that the dataset presented here is the most complete set of information, it should be noted that there are a number of versions of this dataset held by institutions and individuals which may differ from this set.



Supplemental information

This dataset was downloaded from OBIS ( The records for only marine mammals, seabirds, sea turtles and rays and sharks were extracted. Records with no longitude/latitude or no date (eventDate) were excluded.
OBIS dataset page:
Data Provider's dataset page:


ICES Fish stomach contents dataset (STOMACH). The International Council for the Exploration of the Sea, Copenhagen. 2010. Online source:



This section explains attributes included in the original dataset. OBIS-SEAMAP restricts the attributes available to the public to date/time, lat/lon and species names/counts only. Should you need other attributes described here, you are encouraged to contact the data provider.

Attributes described below represent those in the original dataset provided by the provider.
All attributes are included in the downloadable file (CSV or ESRI File Geodatabase) for "Complete Set of Dataset".

Attributes in dataset

Attribute (table column)Description
oidInternal ID
idRecord ID
dataset_idDataset ID
scientificnameScientific name
vernacularnameVernacular name
aphiaidAphia ID
taxonranktaxononic rank
individualcountGroup size / individual count
eventdateEvent date (precision varies)
eventtimeEvent time
decimallatitudeLatitude in decimal degrees
decimallongitudeLongitude in decimal degrees
coordinateprecisionCoordinate precision
catalognumberCatalog number
collectioncodeCollection code
occurrencestatusOccurrence status
basisofrecordBasis of record (HumanObservation / MachineObservation)
modifiedDate/time the record was modified
node_idNode ID
occurrenceidOccurrence ID
occurrenceremarksOccurrence remarks
eventidEvent ID
institutioncodeInstitution code
lifestageLife stage
sexGender of the animal if known
speciesSpecies by provider
datasetidDataset ID by provider
localityLocation of ocean
waterbodyDetails of ocean
droppedFlag indicating the record was dropped (always false)
absenceFlag indicating the record represents the absence of the species (always false)
marineFlag indicating the record is for marine life (always true)
Marine mammals0
Sea turtles0
Rays and sharks42
Other species0
Non spatial0
Non species0
Date, Begin1980-01-01
Date, End1991-11-17
Temporal prec.100000
Latitude51.75 - 60.75
Longitude-0.50 - 8.50
Coord. prec.6 decimal digits
Data typeAnimal sighting
Traveled (km)0
Contr. throughiOBIS
Sharing policy CC-BY (All)
Shared with None
See metadata in static HTML
See metadata in FGDC XML
See download history / statistics