Diet composition of Atlantic bluefin tuna in the Iceland Sea and surrounding area: A focus on mesopelagic organisms


We present data of Atlantic bluefin tuna (Thunnus thynnus) diet published in Ólafsdóttir et al (2016). Each line corresponds to the observation of one prey individual in a single tuna stomach and contains data on the predator (tuna ID number in database, length, weight and sex) and on the prey (Micromesistius poutassou, Gonatus fabricii, Todarodes sagittatus, Scopelogadus beanii, Notoscopelus kroeyeri, Maurolicus muelleri and Paralepidae), together with cruise information (latitude, longitude and date of collection). Therefore, several lines can contain data of a single tuna stomach which can be identified by the “Specimen ID (predator, MFRI database)” column. The size, weight and length of each prey was recalculated based on regression between beak/otolith size and total length of the prey estimated from survey samples collected in Icelandic waters. These regressions are available under "Further details".

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Metadata Access
Creator Pampoulie, Christophe ORCID logo; Ólafsdóttir, Droplaug
Publisher PANGAEA
Publication Year 2021
Funding Reference Horizon 2020 Crossref Funder ID 817806 Sustainable management of mesopelagic resources; Seventh Framework Programme Crossref Funder ID 264933 Basin Scale Analysis, Synthesis and Integration; Seventh Framework Programme Crossref Funder ID 308299 North Atlantic Climate
Rights Creative Commons Attribution 4.0 International;
OpenAccess true
Resource Type Dataset
Format text/tab-separated-values
Size 130240 data points
Discipline Earth System Research
Spatial Coverage (-25.967W, 60.000S, -15.000E, 62.800N); Iceland Basin
Temporal Coverage Begin 1998-08-01T00:00:00Z
Temporal Coverage End 1999-08-31T00:00:00Z