Sánchez, Nicolás; Weichler, Merlin; Dorssers, Scott; Goldenberg, Silvan Urs (2024): KOSMOS 2021 Gran Canaria mesocosm study on ocean alkalinity enhancement: metazoan zooplankton carbon and nitrogen mass, and 13C and 15N stable isotopes [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.971765 (DOI registration in progress)
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Abstract:
This data was collected as a part of a mesocosm study to investigate the ecosystem impacts of ocean alkalinity enhancement, within the EU H2020 OceanNETs project. Nine mesocosms were deployed in Taliarte Harbour (Gran Canaria, Spain) and were regularly sampled using integrated water samplers between 10th September-25th October 2021. A gradient design was used in this experiment with a total of nine different alkalinity concentrations. Seawater alkalinity ranged between ambient (0 µeq kg-1 added alkalinity, OAE0) and 2400 µeq kg-1 additional alkalinity (OAE2400). The alkalinity levels increased in equal intervals of 300 µeq kg-1 across nine mesocosms (OAE0, OAE300, OAE600, OAE900, OAE1200, OAE1500, OAE1800, OAE2100, OAE2400). This data set contains metazoan zooplankton carbon and nitrogen mass (µg per individual), carbon to nitrogen stoichiometry and δ15N (‰ air) and δ13C (‰ PDB) stable isotopes. Here are included metazoan zooplankton carbon and nitrogen mass, and stable isotope measurements. These measurements were used to calculate zooplankton biomass, CN stoichiometry, trophic level and production (see the correspondent data sets). Metazoan zooplankton were sampled with apstein net (ø17cm, mesh size 55µm, 64.06285L) hauls taken every four days (except the first 11 days, when samples were only taken on days 1 and 11). Zooplankton were size fractioned and assessed in the correspondent size class (small: 55-200µm; medium: 200-500µm; large: 500µm-3mm). Organisms were picked into functional groups within each size class: i) bulk zooplankton (MZP), which consisted of a random mix of all zooplankton, ii) copepod zooplankton (COP), and iii) copepod nauplii (NAU), iv) Large Labidocera, a type of copepod much larger than other copepods inthe large size class, was also sampled when found in the nets (LAB) and in the sedimented material (SED-LAB). The experiment, which lasted 33 days, was divided into four response phases (see Sánchez et al. (in prep)): i) pretreatment (days 1 to 4, treatment was implemented on day 4), ii) immediate (days 5-10), iii) shorter term (days 11-22), iv) longer term (days 23 to 33).
Keyword(s):
Related to:
Paul, Allanah Joy; Sánchez, Nicolás; Haunost, Mathias; Schneider, Julieta (2024): KOSMOS 2021 Gran Canaria mesocosm study on ocean alkalinity enhancement: water column biogeochemistry and pigments [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.966941
Sánchez, Nicolás; Brüggemann, Daniel; Goldenberg, Silvan Urs (2024): KOSMOS 2021 Gran Canaria mesocosm study on ocean alkalinity enhancement: metazoan zooplankton carbon biomass [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.971764
Project(s):
Ocean-based Negative Emission Technologies (OceanNETs)
Funding:
Coverage:
Latitude: 27.990000 * Longitude: -15.368888
Date/Time Start: 2021-09-11T00:00:00 * Date/Time End: 2021-10-13T00:00:00
Event(s):
KOSMOS_2021_Mesocosm-M1 * Latitude: 27.990000 * Longitude: -15.368888 * Date/Time Start: 2021-09-11T00:00:00 * Date/Time End: 2021-10-25T00:00:00 * Location: Canarias Sea * Campaign: KOSMOS_2021 (KOSMOS Gran Canaria) * Method/Device: Mesocosm experiment (MESO)
KOSMOS_2021_Mesocosm-M2 * Latitude: 27.990000 * Longitude: -15.368888 * Date/Time Start: 2021-09-11T00:00:00 * Date/Time End: 2021-10-25T00:00:00 * Location: Canarias Sea * Campaign: KOSMOS_2021 (KOSMOS Gran Canaria) * Method/Device: Mesocosm experiment (MESO)
KOSMOS_2021_Mesocosm-M3 * Latitude: 27.990000 * Longitude: -15.368888 * Date/Time Start: 2021-09-11T00:00:00 * Date/Time End: 2021-10-25T00:00:00 * Location: Canarias Sea * Campaign: KOSMOS_2021 (KOSMOS Gran Canaria) * Method/Device: Mesocosm experiment (MESO)
Comment:
This data set is associated to the submission by Paul et al. (in review) (https://doi.pangaea.de/10.1594/PANGAEA.966941), so we refer to this data set for basic parameters like water temperature, salinity, pH and carbonate chemistry, to avoid repetition. It is also associated to the dataset "KOSMOS 2021 Gran Canaria mesocosm study on ocean alkalinity enhancement: metazoan zooplankton carbon biomass" (https://doi.pangaea.de/10.1594/PANGAEA.971764), which uses carbon mass conversion factors derived from it.
Parameter(s):
# | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
---|---|---|---|---|---|---|
1 | Type of study | Study type | Sánchez, Nicolás | |||
2 | Event label | Event | Sánchez, Nicolás | |||
3 | DATE/TIME | Date/Time | Sánchez, Nicolás | Geocode | ||
4 | Day of experiment | DOE | day | Sánchez, Nicolás | ||
5 | Treatment: alkalinity, total | T:AT | µeq/kg | Sánchez, Nicolás | in terms of target delta total alkalinity (implementation starts on day 4, prior total alkalinity is similar across enclosures) | |
6 | Identification | ID | Sánchez, Nicolás | correspondence between mesocosm unit identifier and treatment | ||
7 | Mesocosm label | Meso label | Sánchez, Nicolás | |||
8 | Depth, water, experiment, top/minimum | Depth water exp top | m | Sánchez, Nicolás | ||
9 | Depth, water, experiment, bottom/maximum | Depth water exp max | m | Sánchez, Nicolás | ||
10 | Size group description | Size group desc | Sánchez, Nicolás | small: 55-200µm; medium: 200-500µm; large: 500µm-3mm | ||
11 | Sample type | Samp type | Sánchez, Nicolás | |||
12 | Replicate | Repl | Sánchez, Nicolás | |||
13 | Specimen count | Sp count | # | Sánchez, Nicolás | total number of zooplankton picked/included in the sample | |
14 | Copepoda, nauplii | Copepoda naup | # | Sánchez, Nicolás | ||
15 | Copepoda | Copepoda | # | Sánchez, Nicolás | ||
16 | Appendicularia | Appendic | # | Sánchez, Nicolás | ||
17 | Mesozooplankton, other groups | Mesozoopl oth | # | Sánchez, Nicolás | ||
18 | Specimen identification | Spec ID | Sánchez, Nicolás | specification of the zooplankton counted as "other" for each particular sample | ||
19 | Time point, descriptive | Time point | Sánchez, Nicolás | on day 11, after metazoan zooplankton sampling concluded, the dissolved inorganic 13-carbon in the mesocosm enclosures was spiked by 100%o through the addition of 10g of 13C bicarbonate to mesocosm. This was done to measure secondary production rates. This column indicates whetehr the measurements are taken before or after said addition. | ||
20 | Instrument | Instrument | Sánchez, Nicolás | |||
21 | Biomass as nitrogen | Biom N | µg | Sánchez, Nicolás | total organic nitrogen in sample (note that the lower N biomass threshold for instrument "Thomas" was 2.5µgN, and for "Kerstin" 15µgN - we did not exclude samples with measurements below said threshold automatically) | |
22 | Biomass as nitrogen per individual | Biom N/ind | µg/# | Sánchez, Nicolás | organic nitrogen normalized by total number of individuals in the sample | |
23 | Biomass as carbon | Biom C | µg | Sánchez, Nicolás | total carbon in sample, blank corrected (tin capsules in which samples were picked contain trace amounts of carbon) | |
24 | Biomass as carbon per individual | Biom C/ind | µg/# | Sánchez, Nicolás | carbon normalized by total number of individuals in sample | |
25 | Carbon/Nitrogen ratio | C/N | Sánchez, Nicolás | |||
26 | δ15N | δ15N | ‰ air | Sánchez, Nicolás | ||
27 | δ13C | δ13C | ‰ PDB | Sánchez, Nicolás | blank corrected |
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:
8169 data points
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