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Phytoplankton community composition at station Svartnes, Balsfjord, Norway in June 2017 and June 2018 (sampled with a GoFlow bottle)

Citation

Svensen C (2023). Phytoplankton community composition at station Svartnes, Balsfjord, Norway in June 2017 and June 2018 (sampled with a GoFlow bottle). Version 1.2. UiT The Arctic University of Norway. Sampling event dataset https://doi.org/10.15468/s67dzx accessed via GBIF.org on 2025-06-15.

Description

In the project MICROSNOW the ecological role of the small copepod Microsetella norvegica in the sub-Arctic Balsfjorden, Norway, was investigated. As background information, also the phytoplankton community composition was investigated twice in June 2017 and once in June 2018. At distinct depths (0, 10, 20, 50, 90, 120 m), water was collected with a 30 L GoFlow bottle and a subsample of 100 mL was preserved with acidic Lugol’s solution (1% final concentration) taken for later analysis. The remaining water was used for to investigate different developmental stages of the small copepod M. norvegica (data available under the projectID "Microsnow_2017_2018_Balsfjord" in GBIF).

Sampling Description

Study Extent

All samples were collected at the same station. In 2017, phytoplankton were collected on two days within 1 week, while in 2018, phytoplankton samples were only collected once. On each day, water samples were collected at 6 depths (0, 10, 20, 50, 90, 120 m) for the phytoplankton community composition.

Sampling

To determine the phytoplankton community composition in June 2017 and June 2018, a 30 L GoFlow bottle was successively deployed to 6 water depths (surface, 10, 20, 50, 90, 120 m). The collected water was brought on board and a subsample of 100 mL was transferred into a dark plastic bottle. The sample was preserved with 1 mL of acid lugol and then the sample was stored dark and cool until laboratory analysis within a few months.

Method steps

  1. In the laboratory, subsamples were qualitatively and quantitatively analyzed according to the protocols described by Utermöhl (1958) and modified by Edler (1979). For this purpose, 10–50 mL subsamples were poured into the Utermöhl chambers, settled for 24 h in darkness, after which time the protists were counted under an inverted microscope equipped with phase and interference contrasts (Nikon Eclipse TE-300). Microplankton (>20 µm) was enumerated from the entire chamber surface at 100× magnification. Nanoplanktonic cells (3–20 µm) were counted at 400× magnification by moving the field of view along the length of three transverse transects. For the most numerous taxa, up to 50 specimens were counted, and the number of fields of view was considered individually for each count. Systematic affiliation of the identified taxa was verified against the World Register of Marine Species (WoRMS).

Taxonomic Coverages

N/A
  1. Oligotrichida
    rank: order
  2. Leptocylindraceae
    rank: family
  3. Gymnodiniaceae
    rank: family
  4. Dinophyceae
    rank: class
  5. Pleurochloridaceae
    rank: family
  6. Codonosigaceae
    rank: family
  7. Acanthoecida
    rank: order
  8. Naviculales
    rank: order
  9. Chromista
    rank: kingdom
  10. Gonyaulacales
    rank: order
  11. Chromulinales
    rank: order
  12. Bacillariales
    rank: order
  13. Haptophyta
    rank: phylum
  14. Naviculaceae
    rank: family
  15. Chrysophyceae
    rank: class
  16. Cryptophyceae
    rank: class
  17. Thalassiosiraceae
    rank: family
  18. Prymnesiaceae
    rank: family
  19. Gymnodiniales
    rank: order
  20. Protozoa
    rank: kingdom
  21. Leegaardiellidae
    rank: family
  22. Tovelliales
    rank: order
  23. Dinophysaceae
    rank: family
  24. Prorodontidae
    rank: family
  25. NA
    rank: order
  26. Actinomonadaceae
    rank: family
  27. Leptocylindrales
    rank: order
  28. Litostomatea
    rank: class
  29. Acanthoecidae
    rank: family
  30. Chaetocerotanae incertae sedis
    rank: order
  31. Prymnesiales
    rank: order
  32. Peridiniaceae
    rank: family
  33. Licmophoraceae
    rank: family
  34. Thalassiosirales
    rank: order
  35. Choanoflagellatea
    rank: class
  36. Prostomatea
    rank: class
  37. Strombidiida
    rank: order
  38. Cladopyxidaceae
    rank: family
  39. Prorodontida
    rank: order
  40. Oligotrichea
    rank: class
  41. Mesodiniidae
    rank: family
  42. Pedinellales
    rank: order
  43. Peridiniales
    rank: order
  44. Cyclotrichiida
    rank: order
  45. Myzozoa
    rank: phylum
  46. Gonyaulacaceae
    rank: family
  47. Protoperidiniaceae
    rank: family
  48. Geminigeraceae
    rank: family
  49. Prymnesiophyceae
    rank: class
  50. Dictyochophyceae
    rank: class
  51. Warnowiaceae
    rank: family
  52. Xanthophyceae
    rank: class
  53. Bacillariophyta
    rank: phylum
  54. Pyrenomonadales
    rank: order
  55. Tovelliaceae
    rank: family
  56. Bacillariophyceae
    rank: class
  57. Ochrophyta
    rank: phylum
  58. Cryptophyta
    rank: phylum
  59. NA
    rank: class
  60. Heterocapsaceae
    rank: family
  61. Choanozoa
    rank: phylum
  62. Strombidiidae
    rank: family
  63. Craspedida
    rank: order
  64. Dinophysiales
    rank: order
  65. Dinobryaceae
    rank: family
  66. Chaetocerotaceae
    rank: family
  67. NA
    rank: family
  68. Ciliophora
    rank: phylum
  69. Bacillariaceae
    rank: family
  70. Mischococcales
    rank: order
  71. Licmophorales
    rank: order
  72. Choreotrichida
    rank: order

Geographic Coverages

Station Svartnes, Balsfjorden, Norway (190 m bottom depth)

Bibliographic Citations

Contacts

Camilla Svensen
originator
position: Professor
UiT The Arctic University of Norway
Tromsø
NO
email: camilla.svensen@uit.no
userId: https://orcid.org/0000-0001-9577-3935
Ingrid Wiedmann
processor
position: Researcher
UiT The Arctic University of Norway
Tromsø
NO
email: ingrid.wiedmann@uit.no
userId: https://orcid.org/0000-0002-9274-3084
Camilla Svensen
principal investigator
position: Professor
UiT The Arctic University of Norway
Tromsø
NO
email: camilla.svensen@uit.no
userId: https://orcid.org/0000-0001-9577-3935
Anna Dąbrowska
processor
position: Assistant Professor
Institute of Oceanology of the Polish Academy of Sciences (IO PAN)
Sopot
PL
userId: https://orcid.org/0000-0002-0911-3082
Camilla Svensen
administrative point of contact
position: Professor
UiT The Arctic University of Norway
Tromsø
NO
email: camilla.svensen@uit.no
userId: https://orcid.org/0000-0001-9577-3935
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