Knutsen, Tor; Strand, Espen; Klevjer, Thor Aleksander; Salvanes, Anne Gro Vea; Thorsen Broms, Cecilie; Myhre Sunde, Synne; Aksnes, Dag Lorents; García-Seoane, Eva; Melle, Webjørn (2022): Benthosema glaciale diet across the North Atlantic [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.951040
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Abstract:
The data submitted is used in a comparative analysis of the diet of one of the globally most numerous myctophids, the Glacier lantern fish Benthosema glaciale, across four deep basins of the North-Atlantic. B. glaciale is a small fish species that contribute to carbon flux to the deep basins of the open ocean, and is thus considered an important element of the biological carbon pump (BCP). Data submitted is length and weight of fish analyzed for stomach content. In addition there are available taxonomic information, weight and number of prey items of each fish that has stomach content, as long as it has been possible to assign prey to a species or other taxonomic category. Unidentified prey usually had a high degree of digestion and individual items could not be counted, but could be weighed. Sampling were undertaken onboard the RV G.O. Sars during a six week long transatlantic scientific survey from Bergen (Norway) to Nuuk (Greenland) and back to Bergen in May and June 2013. Samples of B. glaciale for stomach content analysis were collected from three Harstad trawl hauls and 16 Macroplankton trawl hauls. The Harstad trawl is a graded (variable mesh size), small mid-water trawl with 20 m vertical opening and 15 m wing spread (Godø et al., 1993). The Macroplankton trawl on the other hand is a light pelagic trawl that has a nominal 6x6 m trawl opening and mesh size of 3 mm square light opening (8 mm stretched, knot to knot) from the trawl mouth along the entire trawl length to the cod-end (Hassel et al., 2017; Klevjer et al., 2020).
Supplement to:
Knutsen, Tor; Strand, Espen; Klevjer, Thor Aleksander; Salvanes, Anne Gro Vea; Thorsen Broms, Cecilie; Myhre Sunde, Synne; Aksnes, Dag Lorents; García-Seoane, Eva; Melle, Webjørn (2023): Feeding ecology of Benthosema glaciale across the North Atlantic. Frontiers in Marine Science, 10, 1086607, https://doi.org/10.3389/fmars.2023.1086607
Related to:
Drinkwater, Kenneth F; Sundby, Svein; Wiebe, Peter H (2020): Exploring the hydrography of the boreal/arctic domains of North Atlantic seas: Results from the 2013 BASIN survey. Deep Sea Research Part II: Topical Studies in Oceanography, 180, 104880, https://doi.org/10.1016/j.dsr2.2020.104880
Klevjer, Thor Aleksander; Melle, Webjørn; Knutsen, Tor; Aksnes, Dag Lorents (2020): Vertical distribution and migration of mesopelagic scatterers in four north Atlantic basins. Deep Sea Research Part II: Topical Studies in Oceanography, 180, 104811, https://doi.org/10.1016/j.dsr2.2020.104811
Melle, Webjørn; Klevjer, Thor Aleksander; Drinkwater, Kenneth F; Strand, Espen; Naustvoll, Lars Johan; Wiebe, Peter H; Aksnes, Dag Lorents; Knutsen, Tor; Sundby, Svein; Slotte, Aril; Dupont, Nicolas; Salvanes, Anne Gro Vea; Korneliussen, Rolf; Huse, Geir (2020): Structure and functioning of four North Atlantic ecosystems - A comparative study. Deep Sea Research Part II: Topical Studies in Oceanography, 180, 104838, https://doi.org/10.1016/j.dsr2.2020.104838
Naustvoll, Lars Johan; Melle, Webjørn; Klevjer, Thor Aleksander; Drinkwater, Kenneth F; Strand, Espen; Knutsen, Tor (2020): Dynamics of phytoplankton species composition, biomass and nutrients in the North Atlantic during spring and summer - A trans-Atlantic study. Deep Sea Research Part II: Topical Studies in Oceanography, 180, 104890, https://doi.org/10.1016/j.dsr2.2020.104890
Strand, Espen; Klevjer, Thor Aleksander; Knutsen, Tor; Melle, Webjørn (2020): Ecology of mesozooplankton across four North Atlantic basins. Deep Sea Research Part II: Topical Studies in Oceanography, 180, 104844, https://doi.org/10.1016/j.dsr2.2020.104844
References:
Godø, Olaf Rune; Valdemarsen, J W; Engås, A (1993): Comparison of efficiency of standard and experimental juvenile gadoid sampling trawls. ICES Marine Science Symposium, 196, 196-201
Hassel, Arne; Endresen, Berit; Martinussen, M B; Gjertsen, K; Knutsen, Tor; Johannessen, Magnus E (2017): Håndbok for plankton. Prøvetaking og analyse. Prosedyrer for prøvetaking og pre-analyse av dyre- og planteplankton på forskningsfartøy og i laboratorium på land, versjon 4.0 (Mars 2017). Havforskningsinstituttet, 155 pp.
Klevjer, Thor Aleksander; Melle, Webjørn; Knutsen, Tor; Strand, Espen; Korneliussen, Rolf; Dupont, Nicolas; Salvanes, Anne Gro Vea; Wiebe, Peter H (2020): Micronekton biomass distribution, improved estimates across four north Atlantic basins. Deep Sea Research Part II: Topical Studies in Oceanography, 180, 104691, https://doi.org/10.1016/j.dsr2.2019.104691
Project(s):
Funding:
Horizon 2020 (H2020), grant/award no. 817669: Ecologically and economically sustainable mesopelagic fisheries
Seventh Framework Programme (FP7), grant/award no. 264933: Basin Scale Analysis, Synthesis and Integration
Coverage:
Median Latitude: 62.668417 * Median Longitude: -29.679741 * South-bound Latitude: 58.720000 * West-bound Longitude: -54.980000 * North-bound Latitude: 68.370000 * East-bound Longitude: 2.590000
Date/Time Start: 2013-05-15T13:25:00 * Date/Time End: 2013-06-12T15:43:00
Comment:
Funding and ship time were also received from the Institute of Marine Research, Bergen, Norway.
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
2 datasets
Download Data
Datasets listed in this bundled publication
- Knutsen, T; Strand, E; Klevjer, TA et al. (2022): Metrics of Benthosema glaciale collected during RV G.O. Sars cruise 2013107 across the North Atlantic in 2013. https://doi.org/10.1594/PANGAEA.950983
- Knutsen, T; Strand, E; Klevjer, TA et al. (2022): Stomach contents of Benthosema glaciale collected during RV G.O. Sars cruise 2013107 across the North Atlantic in 2013. https://doi.org/10.1594/PANGAEA.951043