Bode-Dalby, Maya; Würth, Randi; Dias Fernandes de Oliveira, Lívia; Verheye, Hans M; Hagen, Wilhelm; Auel, Holger (2022): Copepod community ingestion, respiration and length-dry mass relationships in the southern Benguela upwelling system during METEOR cruise M153 [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.946040
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Abstract:
Small copepod genera play an important role in marine food webs and biogeochemical fluxes but have been neglected in many studies. Abundance, biomass and carbon consumption rates of small- (<1 mm prosome length (PL)), medium- (1-1.5 mm PL) and large-sized (>2 mm PL) copepods along a cross-shelf transect in the southern Benguela upwelling system were determined using rather high taxonomic resolution. Zooplankton samples were collected with a Multinet (Hydrobios Multinet midi, 5 nets with 200 µm meshsize) during the Meteor cruise M153 in February/March 2019. Calanoids contributed on average 55 ± 19% to total copepod abundance and 82 ± 13% to total copepod biomass. Small-sized Oithona spp. (119/114 mg C m-2 d-1) and Clauso-/Paracalanidae (87/263 mg C m-2 d-1) as well as large-sized Calanoides natalis (47/193 mg C m-2 d-1) were the dominant consumers at the most inshore stations. Small and medium-sized copepodite stages of Metridia lucens were also important, especially towards the continental slope. At offshore stations, Para-/Clausocalanidae (17-27 mg C m-2 d-1), Oithona spp. (9-16 mg C m-2 d-1), Pleuromamma spp. (0-16 mg C m-2 d-1), Calanus agulhensis (0-15 mg C m-2 d-1), Acartia spp. (0-12 mg C m-2 d-1), C. natalis (0-10 mg C m-2 d-1) and M. lucens (2-6 mg C m-2 d-1) were dominant consumers. Hence, usually small- and medium-sized copepods dominated total copepod ingestion, emphasizing that inadequate representation of small copepods will lead to significant underestimations and misinterpretations of the functioning of zooplankton communities, and finally to inadequate biogeochemical models.
Supplement to:
Bode-Dalby, Maya; Würth, Randi; Dias Fernandes de Oliveira, Lívia; Lamont, Tarron; Verheye, Hans M; Schukat, Anna; Hagen, Wilhelm; Auel, Holger; Irigoien, Xabier (2023): Small is beautiful: the important role of small copepods in carbon budgets of the southern Benguela upwelling system. Journal of Plankton Research, 45(1), 110-128, https://doi.org/10.1093/plankt/fbac061
Project(s):
Funding:
Bundesministerium für Bildung und Forschung, Bonn (BMBF), grant/award no. 03F0797A: Trophic Transfer Efficiency in the Benguela Current
Coverage:
Median Latitude: -27.786200 * Median Longitude: 15.182146 * South-bound Latitude: -32.000120 * West-bound Longitude: 11.499320 * North-bound Latitude: -19.999670 * East-bound Longitude: 18.243070
Date/Time Start: 2019-02-16T11:47:00 * Date/Time End: 2019-03-10T22:01:00
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
4 datasets
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Datasets listed in this bundled publication
- Bode-Dalby, M; Würth, R; Dias Fernandes de Oliveira, L et al. (2022): Copepod community ingestion in the southern Benguela upwelling system during METEOR cruise M153. https://doi.org/10.1594/PANGAEA.946034
- Bode-Dalby, M; Würth, R; Dias Fernandes de Oliveira, L et al. (2022): Copepod length-dry mass relationships in the southern Benguela upwelling system during METEOR cruise M153. https://doi.org/10.1594/PANGAEA.946037
- Bode-Dalby, M; Würth, R; Dias Fernandes de Oliveira, L et al. (2022): Copepod respiration in the southern Benguela upwelling system during METEOR cruise M153. https://doi.org/10.1594/PANGAEA.946039
- Bode-Dalby, M; Würth, R; Dias Fernandes de Oliveira, L et al. (2022): Copepod prosome length in the southern Benguela upwelling system during Meteor cruise M153. https://doi.org/10.1594/PANGAEA.946047