Assmy, Philipp; Wiktor, Jozef M; Dąbrowska, Anna Maria; Tatarek, Agnieszka; Rozanska, Magdalena; Olsen, Lasse Mørk; Gardner, Jessie; Hoppe, Clara Jule Marie; Müller, Oliver; Divine, Dmitry V; Salganik, Evgenii; Lange, Benjamin Allen; Gradinger, Rolf; Granskog, Mats A (2023): Sea-ice protist (including ice algae) abundance and biodiversity data from ice coring at the main coring sites (MCS_FYI and MCS_SYI) and ridges during MOSAiC legs 2 to 4 in 2019/2020 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.957637
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Abstract:
The data has been collected during the expedition "Multidisciplinary drifting Observatory for the Study of Arctic Climate" (MOSAiC) from September 2019 to September 2020 on research vessel Polarstern. The dataset contains abundance of sea ice protists, including ice algae (autotrophic) and protozoa (heterotrophic). Protists were identified and counted with light microscopy using the Utermöhl method and the result are given as cells per liter (cells/L) called Abundance. Sea ice samples were collected with a 9 cm diameter ice corer (Kovacs Enterprise) from both level and ridge ice. The samples were collected from the bottom part of the ice core and generally sectioned from 0-3 cm, 3-10 cm and in 10 cm intervals thereafter. With some exceptions, ice core sections were melted in filtered sea water at 4°C. Melted samples were preserved using Lugol-formaldehyde mixture with a few drops of acidic Lugol solution and hexamethylenetetramine-buffered formalin at a final concentrations of 1%.
Other version:
Sea-ice protist (including ice algae) abundance and biodiversity data from ice coring at the main coring sites (MCS_FYI and MCS_SYI) and ridges during MOSAiC legs 2 to 4 in 2019/2020 (csv file format, column headers follow the Darwin Core nomenclature)
Project(s):
Funding:
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AFMOSAiC-1_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AWI_PS122_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate / MOSAiC
The Research Council of Norway (RCN), grant/award no. 280292: Ridges - Safe HAVens for ice-associated Flora and Fauna in a Seasonally ice-covered Arctic OCean
Coverage:
Median Latitude: 82.633506 * Median Longitude: 26.521311 * South-bound Latitude: 80.241700 * West-bound Longitude: -0.599600 * North-bound Latitude: 87.419800 * East-bound Longitude: 115.689890
Date/Time Start: 2020-01-03T12:00:00 * Date/Time End: 2020-07-24T12:00:00
Minimum Elevation: -4425.5 m * Maximum Elevation: -818.3 m
Event(s):
PS122/2_18-61 * Latitude: 86.916654 * Longitude: 115.689894 * Date/Time: 2020-01-03T11:19:00 * Sensor URI: sensor.awi.de * Location: Arctic Ocean * Campaign: PS122/2 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Ice corer (IC) * Comment: ecocore1_1: ecocore1_1; ecocore1_2: ecocore1_2; ecocore1_3: ecocore1_3; coreeco2_1: core2 _1 next to dcp101048; coreeco2_2: core eco2-2; coreeco2_3: core eco2_3
PS122/2_19-116 * Latitude: 87.181000 * Longitude: 112.740567 * Date/Time: 2020-01-10T11:34:00 * Sensor URI: sensor.awi.de * Location: Arctic Ocean * Campaign: PS122/2 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Ice corer (IC) * Comment: two ridge cores collected from the same site
PS122/2_20-5 * Latitude: 87.332424 * Longitude: 107.154857 * Date/Time: 2020-01-13T08:23:00 * Sensor URI: sensor.awi.de * Location: Arctic Ocean * Campaign: PS122/2 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Ice corer (IC) * Comment: t: temp core; t: tempcore; ch4: ch4 core; halo: halo core bagged; s18: salinity core ; beryllium : bulk core for berrylium measurement; iso: iso core bagged; bromo: bromo core bagged; eco1a: eco1a; eco1b: eco1b; eco1c: eco1c; eco1d: eco1d core; tex: texture core; microplastic: lasses core for microplastics; eco2a: eco2a; eco2b: eco2b; eco2c: eco2c; dic: dic; meio1: meio1; rep: rep; plt: microplastics
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Field number description | Field no desc | Assmy, Philipp | |||
| 2 | Cruise/expedition | Expedition | Assmy, Philipp | |||
| 3 | Event label | Event | Assmy, Philipp | |||
| 4 | DATE/TIME | Date/Time | Assmy, Philipp | Geocode | ||
| 5 | Location | Location | Assmy, Philipp | |||
| 6 | LONGITUDE | Longitude | Assmy, Philipp | Geocode | ||
| 7 | LATITUDE | Latitude | Assmy, Philipp | Geocode | ||
| 8 | Depth, bathymetric | Bathy depth | m | Assmy, Philipp | ||
| 9 | Gear | Gear | Assmy, Philipp | |||
| 10 | Depth, ice/snow, bottom/maximum | Depth ice/snow bot | m | Assmy, Philipp | ||
| 11 | Depth, ice/snow, top/minimum | Depth ice/snow top | m | Assmy, Philipp | ||
| 12 | Phylum | Phylum | Assmy, Philipp | Quantitative phytoplankton method (Utermöhl, 1958) | ||
| 13 | Class | Class | Assmy, Philipp | Quantitative phytoplankton method (Utermöhl, 1958) | ||
| 14 | Order | Order | Assmy, Philipp | Quantitative phytoplankton method (Utermöhl, 1958) | ||
| 15 | Family | Family | Assmy, Philipp | Quantitative phytoplankton method (Utermöhl, 1958) | ||
| 16 | Genus | Genus | Assmy, Philipp | Quantitative phytoplankton method (Utermöhl, 1958) | ||
| 17 | Taxon/taxa, unique identification | Taxa UID | Assmy, Philipp | Quantitative phytoplankton method (Utermöhl, 1958) | Taxon key LSID | |
| 18 | Taxon/taxa, unique identification (Semantic URI) | Taxa UID (Semantic URI) | Assmy, Philipp | Quantitative phytoplankton method (Utermöhl, 1958) | Taxon key LSID | |
| 19 | Taxon/taxa, unique identification (URI) | Taxa UID (URI) | Assmy, Philipp | Quantitative phytoplankton method (Utermöhl, 1958) | Taxon key LSID | |
| 20 | Identification qualifier | ID qualifier | Assmy, Philipp | Quantitative phytoplankton method (Utermöhl, 1958) | A standard term (sp., spp., and indet.) to express the determiner's doubts about the Identification. | |
| 21 | Life stage | Life stage | Assmy, Philipp | Quantitative phytoplankton method (Utermöhl, 1958) | ||
| 22 | Size group description | Size group desc | Assmy, Philipp | Quantitative phytoplankton method (Utermöhl, 1958) | ||
| 23 | Organism remarks | Org remark | Assmy, Philipp | Quantitative phytoplankton method (Utermöhl, 1958) | Indicates e.g. varieties, colony type | |
| 24 | Identification remarks | Ident remark | Assmy, Philipp | Quantitative phytoplankton method (Utermöhl, 1958) | A free text field for adding information relevant to the analysis | |
| 25 | Individuals | Ind | # | Assmy, Philipp | Quantitative phytoplankton method (Utermöhl, 1958) | |
| 26 | Fields | Fields | # | Assmy, Philipp | Quantitative phytoplankton method (Utermöhl, 1958) | Number of fields counted in the microscope |
| 27 | Fields | Fields | # | Assmy, Philipp | Quantitative phytoplankton method (Utermöhl, 1958) | Number of fields in the entire sedimentation chamber (Related to magnification used) |
| 28 | Magnification | Mag | Assmy, Philipp | Quantitative phytoplankton method (Utermöhl, 1958) | The magnification setting used during analysis | |
| 29 | Investigator | Investigator | Assmy, Philipp | Quantitative phytoplankton method (Utermöhl, 1958) | Person who did the lab-analyse | |
| 30 | Date of determination | Date deter | Assmy, Philipp | Quantitative phytoplankton method (Utermöhl, 1958) | Date for the analysis | |
| 31 | Sample volume | Samp vol | ml | Assmy, Philipp | Quantitative phytoplankton method (Utermöhl, 1958) | The volume taken for sedimentation in the Utermöhl chamber (the sub-sample taken for analysis) |
| 32 | Sample volume | Samp vol | ml | Assmy, Philipp | Quantitative phytoplankton method (Utermöhl, 1958) | |
| 33 | Abundance | Abund | #/l | Assmy, Philipp | Quantitative phytoplankton method (Utermöhl, 1958) | Protist including ice algae (autotrophic) and protozoa (heterotrophic) |
| 34 | Volume | Vol | l | Assmy, Philipp | Quantitative phytoplankton method (Utermöhl, 1958) | The total melted volume in L recorded during sampling |
| 35 | Volume | Vol | l | Assmy, Philipp | Quantitative phytoplankton method (Utermöhl, 1958) | Volume in L of filtered sea water added to the sample during melting |
| 36 | Dilution factor | Dilution | Assmy, Philipp | Quantitative phytoplankton method (Utermöhl, 1958) | Dilution factor filtered sea water | |
| 37 | Volume | Vol | l | Assmy, Philipp | Quantitative phytoplankton method (Utermöhl, 1958) | The total volume in L of the melted core, measured during sampling. If it wasn't measured one can use the theoretical calculated core volume based on diameter of the core |
| 38 | Abundance per area | Abund a | #/m2 | Assmy, Philipp | Quantitative phytoplankton method (Utermöhl, 1958) | Protist including ice algae (autotrophic) and protozoa (heterotrophic) |
Change history:
2024-02-01T17:03:34 – Salganik, Evgenii and Lange, Benjamin A added to the author list on request of the lead author.
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
51603 data points
Download Data
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