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Goldenberg, Silvan Urs; Spisla, Carsten (2023): KOSMOS mesocosm experiment Gran Canaria 2019 on testing the effect of nutrient composition (Si:N) during artificial upwelling: mesozooplankton trophic level and fish biomass and feeding [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.963467

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Abstract:
Mesozooplankton trophic position (via copepod δ15N) to approximate food web length as well as fish production (via biomass increase) and feeding rate (via stomach content) during the mesocosm experiment in the Canary Islands in autumn 2019. Copepods >200µm were sampled depth-integrated (0-2.5m) on day 13. At this time, copepods represented the top of the food web as fish were not yet present. Individuals 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. A small pelagic fish (silverside, Atherina presbyter) was introduced to the mesocosms on day 15. On day 18, for a subset of fish, stomachs content was assessed to estimate feeding success. On day 21, all fish were sampled for biomass and abundance. The upwelling treatment started on day 6. Methodological details in Goldenberg et al. (doi:10.3389/fmars.2022.1015188) and Goldenberg et al. (under review).
Keyword(s):
artificial upwelling; carbon dioxide removal; diatoms; Field experiment; food production; GC2019; KOSMOS; mesocosm experiment; negative emission technology; ocean fertilization; plankton food web; small pelagic fish; trophic transfer
Related to:
Goldenberg, Silvan Urs; Taucher, Jan; Fernández-Méndez, Mar; Ludwig, Andrea; Arístegui, Javier; Baumann, Moritz; Ortiz Cortes, Joaquin; Stuhr, Annegret; Riebesell, Ulf (2022): Nutrient composition (Si:N) as driver of plankton communities during artificial upwelling. Frontiers in Marine Science, 9, 1015188, https://doi.org/10.3389/fmars.2022.1015188
Funding:
Federal Ministry of Education and Research (BMBF), grant/award no. 03F0897A: DAM CDRmare - TestArtUp, GEOMAR
Horizon 2020 (H2020), grant/award no. 695094: Ocean Artificial Upwelling
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:
Latitude: 27.989900 * Longitude: -15.368800
Date/Time Start: 2019-09-19T00:00:00 * Date/Time End: 2019-09-27T00:00:00
Event(s):
KOSMOS_2019_Mesocosm-M1 * Latitude: 27.989900 * Longitude: -15.368800 * Date/Time Start: 2019-09-07T00:00:00 * Date/Time End: 2019-10-09T00:00:00 * Location: Canarias Sea * Campaign: KOSMOS_2019 (KOSMOS Gran Canaria) * Method/Device: Mesocosm experiment (MESO)
KOSMOS_2019_Mesocosm-M2 * Latitude: 27.989900 * Longitude: -15.368800 * Date/Time Start: 2019-09-07T00:00:00 * Date/Time End: 2019-10-09T00:00:00 * Location: Canarias Sea * Campaign: KOSMOS_2019 (KOSMOS Gran Canaria) * Method/Device: Mesocosm experiment (MESO)
KOSMOS_2019_Mesocosm-M3 * Latitude: 27.989900 * Longitude: -15.368800 * Date/Time Start: 2019-09-07T00:00:00 * Date/Time End: 2019-10-09T00:00:00 * Location: Canarias Sea * Campaign: KOSMOS_2019 (KOSMOS Gran Canaria) * Method/Device: Mesocosm experiment (MESO)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Type of studyStudy typeGoldenberg, Silvan Urs
2Event labelEventGoldenberg, Silvan Urs
3TreatmentTreatGoldenberg, Silvan UrsSi:N [mol/mol]: upwelling treatment with varying Si:N ratios in deep water
4TreatmentTreatGoldenberg, Silvan UrsSi*: upwelling treatment expressed as concentration difference Si*=[Si]-[N] in the deep water [µmol/L]
5Mesocosm labelMeso labelGoldenberg, Silvan Urslabel for the 8 independent experimental units of ~8m3
6DATE/TIMEDate/TimeGoldenberg, Silvan UrsGeocode
7Day of experimentDOEdayGoldenberg, Silvan Urs
8Depth, water, experiment, top/minimumDepth water exp topmGoldenberg, Silvan Urs
9Depth, water, experiment, bottom/maximumDepth water exp maxmGoldenberg, Silvan Urs
10Sample typeSamp typeGoldenberg, Silvan Urs
11Number of samplesSamples#Goldenberg, Silvan Ursnumber of tin cup samples with copepods for δ15N
12CopepodaCopepoda#Goldenberg, Silvan Ursnumber of copepod individuals per tin cup sample
13Copepoda, biomass as nitrogenCopepoda biom NµgGoldenberg, Silvan Ursnitrogen mass per tin cup sample
14Copepoda, δ15NCopepoda δ15N‰ airGoldenberg, Silvan Urs
15δ15Nδ15NGoldenberg, Silvan UrsCalculatedcalculated trophic level proxy as difference between copepod and autotroph δ15N
16δ15N, particulate organic matterδ15N POM‰ airGoldenberg, Silvan Ursaverage of day 11 and 13 (17 and 19/09/2019)
17δ15Nδ15NGoldenberg, Silvan UrsCalculatedcalculated autotroph baseline as POM δ15N corrected for heterotrophic fraction, average of day 11 and 13 (17 and 19/09/2019)
18Number of samplesSamples#Goldenberg, Silvan Ursnumber of fishes sampled for stomach content
19Number of copepoda, per fish stomachNo copepoda fish stom#/#Goldenberg, Silvan Urs
20Copepoda, biomass as carbon, per fish stomachCopepoda biom C fish stomµg/#Goldenberg, Silvan Urs
21Copepoda, biomass as carbon, per fish stomachCopepoda biom C fish stomµg/#Goldenberg, Silvan Urs- log10: copepod carbon mass per fish stomach log10 transformed before calculating average per mesocosm
22Atherina presbyter, juvenile, wet massA. presbyter juv wmmgGoldenberg, Silvan Ursaverage mass of all fish of the juvenile category at final fish sampling
23Atherina presbyter, juvenile, standard lengthA. presbyter juv SLmmGoldenberg, Silvan Ursaverage length of all fish of the juvenile category at final fish sampling
24Atherina presbyter, juvenileA. presbyter juv#Goldenberg, Silvan Ursnumber of fish of the juvenile category at final fish sampling
25Atherina presbyter, larvae, wet massA. presbyter larv wmmgGoldenberg, Silvan Ursaverage mass of all fish of the larvae category at final fish sampling
26Atherina presbyter, larvae, standard lengthA. presbyter larv SLmmGoldenberg, Silvan Ursaverage length of all fish of the larvae category at final fish sampling
27Atherina presbyter, larvaeA. presbyter larv#Goldenberg, Silvan Ursnumber of fish of the larvae category at final fish sampling
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
328 data points

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