Goldenberg, Silvan Urs; Spisla, Carsten; Haussmann, Jaqueline (2023): KOSMOS 2018 Gran Canaria mesocosm study on artificial upwelling: mesozooplankton trophic position and diatom fatty acid markers [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.963589
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Abstract:
Mesozooplankton trophic markers to estimate food web length (δ15N) and dietary contribution of diatoms (fatty acids) during the mesocosm experiment in the Canary Islands in autumn 2018. Depth-integrated (0-14 m) plankton nets were taken and omnivorous copepods >200µm used for trophic marker analysis. For trophic level, copepods were picked in groups into tin capsules and δ15N measured in a mass spectrometer. Particulate organic matter (>0.7µm) δ15N was also measured to calculate an autotroph baseline. The difference between copepod and autotroph δ15N was used as trophic level proxy. Trophic level data represents averages across all samples from day 11 to 38. For fatty acids (FA), copepods were picked in groups and FA composition determined by gas chromatography. Particulate organic matter (>0.7µm) FA were also measured as baseline. The marker 20:5ω3/22:6ω3 was most suitable to track the propagation of diatom productivity up the food web. FA data represents averages across samples taken on day 30 and 36. The upwelling treatment started on day 4. Methodological details in Ortiz et al. (2022) (doi:10.3389/fmars.2021.743105), Baumann et al. (2021) (doi:10.3389/fmars.2021.742142) and Goldenberg et al. (under review).
Keyword(s):
Related to:
Baumann, Moritz; Taucher, Jan; Paul, Allanah Joy; Heinemann, Malte; Vanharanta, Mari; Bach, Lennart Thomas; Spilling, Kristian; Ortiz Cortes, Joaquin; Arístegui, Javier; Hernández-Hernández, Nauzet; Baños Cerón, Isabel; Riebesell, Ulf (2021): Effect of Intensity and Mode of Artificial Upwelling on Particle Flux and Carbon Export. Frontiers in Marine Science, 8, https://doi.org/10.3389/fmars.2021.742142
Ortiz Cortes, Joaquin; Arístegui, Javier; Taucher, Jan; Riebesell, Ulf (2022): Artificial Upwelling in Singular and Recurring Mode: Consequences for Net Community Production and Metabolic Balance. Frontiers in Marine Science, 8, 743105, https://doi.org/10.3389/fmars.2021.743105
Project(s):
Funding:
Federal Ministry of Education and Research (BMBF), grant/award no. 03F0897A: DAM CDRmare - TestArtUp, GEOMAR
Horizon 2020 (H2020), grant/award no. 731065: Network of Leading European AQUAtic MesoCOSM Facilities Connecting Mountains to Oceans from the Arctic to the Mediterranean
Coverage:
Median Latitude: 27.927865 * Median Longitude: -15.364298 * South-bound Latitude: 27.927567 * West-bound Longitude: -15.364717 * North-bound Latitude: 27.928167 * East-bound Longitude: -15.363833
Date/Time Start: 2018-11-06T00:00:00 * Date/Time End: 2018-12-14T00:00:00
Event(s):
KOSMOS_2018_Mesocosm-M1 * Latitude: 27.928167 * Longitude: -15.364417 * Date/Time Start: 2018-11-06T00:00:00 * Date/Time End: 2018-12-14T00:00:00 * Location: Canarias Sea * Campaign: KOSMOS_2018 (KOSMOS Gran Canaria) * Method/Device: Mesocosm experiment (MESO)
KOSMOS_2018_Mesocosm-M2 * Latitude: 27.928067 * Longitude: -15.364133 * Date/Time Start: 2018-11-06T00:00:00 * Date/Time End: 2018-12-14T00:00:00 * Location: Canarias Sea * Campaign: KOSMOS_2018 (KOSMOS Gran Canaria) * Method/Device: Mesocosm experiment (MESO)
KOSMOS_2018_Mesocosm-M3 * Latitude: 27.927983 * Longitude: -15.363833 * Date/Time Start: 2018-11-06T00:00:00 * Date/Time End: 2018-12-14T00:00:00 * Location: Canarias Sea * Campaign: KOSMOS_2018 (KOSMOS Gran Canaria) * Method/Device: Mesocosm experiment (MESO)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Type of study | Study type | Goldenberg, Silvan Urs | |||
| 2 | Event label | Event | Goldenberg, Silvan Urs | |||
| 3 | Treatment | Treat | Goldenberg, Silvan Urs | mode: 1st upwelling treatment, all deep water added at the beginning (singular) or in several small additions (recurring) | ||
| 4 | Treatment | Treat | Goldenberg, Silvan Urs | intensity: 2nd upwelling treatment, varying quantities of deep water added | ||
| 5 | Mesocosm label | Meso label | Goldenberg, Silvan Urs | label for the 9 independent experimental units | ||
| 6 | Depth, water, experiment, top/minimum | Depth water exp top | m | Goldenberg, Silvan Urs | ||
| 7 | Depth, water, experiment, bottom/maximum | Depth water exp max | m | Goldenberg, Silvan Urs | ||
| 8 | Number of samples | Samples | # | Goldenberg, Silvan Urs | number of tin cup samples with copepods for δ15N | |
| 9 | Copepoda | Copepoda | # | Goldenberg, Silvan Urs | number of copepod individuals per tin cup sample | |
| 10 | Copepoda, biomass as nitrogen | Copepoda biom N | µg | Goldenberg, Silvan Urs | nitrogen mass per tin cup sample | |
| 11 | Copepoda, δ15N | Copepoda δ15N | ‰ air | Goldenberg, Silvan Urs | ||
| 12 | δ15N | δ15N | ‰ air | Goldenberg, Silvan Urs | Calculated | calculated trophic level proxy as difference between copepod and autotoph δ15N |
| 13 | δ15N | δ15N | ‰ air | Goldenberg, Silvan Urs | Calculated | calculated autotroph baseline as POM δ15N corrected for heterotrophic fraction |
| 14 | Ratio | Ratio | Goldenberg, Silvan Urs | diatom biovolume to chlorophyll a ratio, as proxy for diatom dominance of phytoplankton community in mm/µg | ||
| 15 | Number of samples | Samples | # | Goldenberg, Silvan Urs | number of fatty acid samples with copepods | |
| 16 | Copepoda | Copepoda | # | Goldenberg, Silvan Urs | number of copepod individuals per fatty acid sample | |
| 17 | all-cis-5,8,11,14,17-Eicosapentaenoic acid | 20:5(n-3) | ng | Goldenberg, Silvan Urs | EPA mass per copepod sample | |
| 18 | all-cis-4,7,10,13,16,19-Docosahexaenoic acid | 22:6(n-3) | ng | Goldenberg, Silvan Urs | DHA mass per copepod sample | |
| 19 | Ratio | Ratio | Goldenberg, Silvan Urs | ratio EPA/DHA in copepods [ng/ng] | ||
| 20 | Ratio | Ratio | Goldenberg, Silvan Urs | ratio EPA/DHA in particulate organic matter [ng/ng] | ||
| 21 | Treatment: nitrogen | T: N | µmol/l | Goldenberg, Silvan Urs | new nitrogen added until time of sampling copepods |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
174 data points