Pampoulie, Christophe; Ólafsdóttir, Anna H (2020): Diet composition of the Atlantic bluefin tuna (Thunnus thynnus L.) collected in 1998-1999 in the Icelandic Basin [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.915551
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Abstract:
This dataset presents the diet composition of tuna during autumn migrations to the Iceland Basin south of the continental shelf for the year 1998 and 1999 (area Va and XII defined by ICES). Each line in the dataset represents a different prey item found in the stomach of one tuna fish with a specific ID number. Therefore, several lines represent the total number of prey item found in one tuna stomach. For the stomach content analysis, the data were separated by geographical areas recorded in the column G called “area”. Tuna were also classified according to their size distribution defined in the column “groups”. A total of 36 prey species or higher taxa are described in 421 stomach samples: 17 teleost fishes, 4 squid, 1 octopus, 11 crustaceans and 2 other invertebrate species. The most important prey species are European flying squid (Todarodes sagittatus), barracudinas (Paralepididae) and gonate squid (Gonatus sp.). The identification of prey items was performed by identification of individual prey items, and of sagittal otolith and of beak pairs for fish and squid respectively, when preys were heavily digested.
Related to:
Ólafsdóttir, Droplaug; MacKenzie, Brian R; Chosson-P, Valérie; Ingimundardottir, Thorey (2016): Dietary evidence of mesopelagic and pelagic foraging by Atlantic bluefin tuna (Thunnus thynnus L.) during autumn migrations to the Iceland Basin. Frontiers in Marine Science, 3, 108, https://doi.org/10.3389/fmars.2016.00108
Pampoulie, Christophe; Ólafsdóttir, Droplaug (2021): Diet composition of Atlantic bluefin tuna in the Iceland Sea and surrounding area: A focus on mesopelagic organisms. PANGAEA, https://doi.org/10.1594/PANGAEA.930325
Project(s):
Basin Scale Analysis, Synthesis and Integration (EURO-BASIN)
North Atlantic Climate (NACLIM)
Funding:
Seventh Framework Programme (FP7), grant/award no. 264933: Basin Scale Analysis, Synthesis and Integration
Coverage:
Latitude: 59.875717 * Longitude: -22.551740
Event(s):
Iceland_Basin * Latitude: 59.875717 * Longitude: -22.551740 * Location: North Atlantic * Method/Device: Longline deployment (LLDEP)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample ID | Sample ID | Pampoulie, Christophe | |||
| 2 | Identification | ID | Pampoulie, Christophe | Fish | ||
| 3 | Identification | ID | Pampoulie, Christophe | Prey | ||
| 4 | Thunnus thynnus, length class | T. thynnus class | Pampoulie, Christophe | |||
| 5 | Month | Month | Pampoulie, Christophe | |||
| 6 | Year of observation | Year obs | a AD | Pampoulie, Christophe | ||
| 7 | Code | Code | Pampoulie, Christophe | ICES area number | ||
| 8 | Thunnus thynnus, group | T. thynnus gr | Pampoulie, Christophe | |||
| 9 | Number of prey | N prey | # | Pampoulie, Christophe | ||
| 10 | Occurrence | Occur | # | Pampoulie, Christophe | ||
| 11 | Species | Species | Pampoulie, Christophe |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
31405 data points
Download Data
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