Fock, Heino O; Duncan, Sabrina (2024): Mesopelagic fishes of the Benguela upwelling system, cruise RV Meteor 153, 2019, and cruise RV Sonne 285, 2021 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.968479
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Abstract:
The Benguela upwelling system is one of the most productive marine ecosystems in the world; however, little is known about the community structure of mesopelagic fishes in its northern (nBUS) and southern (sBUS) subsystems. We analyzed around 1900 specimens from 13 stations in 2019, austral summer, in the nBUS and 11 stations in the sBUS during the austral summer and found 88 species and 24 families of mesopelagic fishes. Seven distinct assemblages characterized by water mass, oxygen concentration in the surface layer, and chlorophyll concentrations between 50 and 100 m were identified. In 2021 in austral winter, 15 stations were analyzed, of which 7 belonged to sBUS and 8 to nBUS.
Related to:
Duncan, Sabrina; Fock, Heino O; Sell, Anne F; Hagen, Wilhelm (2023): Trophic ecology of mesopelagic fishes in the northern and southern Benguela Upwelling Systems revealed through stable isotope patterns. Marine Ecology Progress Series, 725, 75-93, https://doi.org/10.3354/meps14455
Duncan, Sabrina; Sell, Anne F; Hagen, Wilhelm; Fock, Heino O (2022): Environmental drivers of upper mesopelagic fish assemblages in the Benguela Upwelling System. Marine Ecology Progress Series, 688, 133-152, https://doi.org/10.3354/meps14017
Martin, Bettina; Auel, Holger; Bode-Dalby, Maya; Dudeck, Tim; Duncan, Sabrina; Ekau, Werner; Fock, Heino O; Hagen, Wilhelm; Heinatz, Knut; Kaufmann, Manfred; Koppelmann, Rolf; Lamont, Tarron; Louw, Deon C; Moloto, Tebatso; Sell, Anne F; Thomalla, Sandy J; van der Lingen, Carl D (2024): Studies of the Ecology of the Benguela Current Upwelling System: The TRAFFIC Approach. In: von Maltitz, GP, Midgley, GF, Veitch, J, Brümmer, C, Rötter, RP, Viehberg, FA, Veste, M (eds.), Sustainability of Southern African Ecosystems under Global Change, Ecological Studies, Springer International Publishing, Cham, 248, 277-312, https://doi.org/10.1007/978-3-031-10948-5_11
Project(s):
Funding:
Bundesministerium für Bildung und Forschung, Bonn (BMBF), grant/award no. 03F0797A: Trophic Transfer Efficiency in the Benguela Current
Federal Ministry of Education and Research (BMBF), grant/award no. SPACES II 03F0797D: Trophic Transfer Efficiency in the Benguela Current
Coverage:
Median Latitude: -23.813334 * Median Longitude: 12.552025 * South-bound Latitude: -32.063350 * West-bound Longitude: -20.605350 * North-bound Latitude: 35.134670 * East-bound Longitude: 17.021770
Date/Time Start: 2019-02-19T22:05:00 * Date/Time End: 2021-10-09T21:47:07
Minimum DEPTH, water: 101.0 m * Maximum DEPTH, water: 602.0 m
Event(s):
M153_8-6 * Latitude Start: -31.022330 * Longitude Start: 15.991750 * Latitude End: -31.057180 * Longitude End: 15.983380 * Date/Time Start: 2019-02-19T22:05:00 * Date/Time End: 2019-02-19T23:08:00 * Elevation Start: -331.0 m * Elevation End: -351.0 m * Campaign: M153 * Basis: Meteor (1986) * Method/Device: Rectangular midwater trawl 4500 µm (RMT8) * Comment: in the cruise report, the mesh size was erroneously reported as 4000 µm
M153_16-7 * Latitude Start: -32.028500 * Longitude Start: 15.998100 * Latitude End: -32.063350 * Longitude End: 15.998870 * Date/Time Start: 2019-02-22T00:13:00 * Date/Time End: 2019-02-22T01:24:00 * Elevation Start: -820.0 m * Elevation End: -820.0 m * Campaign: M153 * Basis: Meteor (1986) * Method/Device: Rectangular midwater trawl 4500 µm (RMT8) * Comment: in the cruise report, the mesh size was erroneously reported as 4000 µm
M153_18-31 * Latitude Start: -31.115650 * Longitude Start: 15.204070 * Latitude End: -31.160980 * Longitude End: 15.184130 * Date/Time Start: 2019-02-24T04:15:00 * Date/Time End: 2019-02-24T05:28:00 * Elevation Start: -820.0 m * Elevation End: -820.0 m * Campaign: M153 * Basis: Meteor (1986) * Method/Device: Rectangular midwater trawl 4500 µm (RMT8) * Comment: in the cruise report, the mesh size was erroneously reported as 4000 µm
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Fock, Heino O | |||
| 2 | Date/Time of event | Date/Time | Fock, Heino O | |||
| 3 | Latitude of event | Latitude | Fock, Heino O | |||
| 4 | Longitude of event | Longitude | Fock, Heino O | |||
| 5 | DEPTH, water | Depth water | m | Fock, Heino O | Geocode – maximum sampling depth of net in double oblique tows | |
| 6 | Station label | Station | Fock, Heino O | |||
| 7 | Year of observation | Year obs | a AD | Fock, Heino O | ||
| 8 | Taxon/taxa, unique identification | Taxa UID | Fock, Heino O | Visual identification (VID) | ||
| 9 | Taxon/taxa, unique identification (Semantic URI) | Taxa UID (Semantic URI) | Fock, Heino O | Visual identification (VID) | ||
| 10 | Taxon/taxa, unique identification (URI) | Taxa UID (URI) | Fock, Heino O | Visual identification (VID) | ||
| 11 | Sample ID | Sample ID | Fock, Heino O | |||
| 12 | Method comment | Method comm | Fock, Heino O | |||
| 13 | Fish, standard length | Fish SL | mm | Fock, Heino O | Fish measuring board | |
| 14 | Number of individuals | Ind No | # | Fock, Heino O | Counting, visual | |
| 15 | Fish, wet mass | Fish wm | g | Fock, Heino O | Fish, wet weighted | total |
| 16 | Water volume, filtered | Vol filtered | m3 | Fock, Heino O | Calculated | in double oblique tow |
| 17 | Biomass, wet mass | Biom wm | g | Fock, Heino O | Calculated | per individual |
| 18 | Biomass, wet mass | Biom wm | g | Fock, Heino O | Calculated | total |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 4 (ProcLevel4)
Size:
28328 data points
Download Data
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