說明
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).
資料紀錄
此資源sampling event的資料已發佈為達爾文核心集檔案（DwC-A），其以一或多組資料表構成分享生物多樣性資料的標準格式。 核心資料表包含 18 筆紀錄。
亦存在 1 筆延伸集的資料表。延伸集中的紀錄補充核心集中紀錄的額外資訊。 每個延伸集資料表中資料筆數顯示如下。
此 IPT 存放資料以提供資料儲存庫服務。資料與資源的詮釋資料可由「下載」單元下載。「版本」表格列出此資源的其它公開版本，以便利追蹤其隨時間的變更。
版本
以下的表格只顯示可公開存取資源的已發布版本。
如何引用
研究者應依照以下指示引用此資源。:
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. Samplingevent dataset. https://ipt.gbif.no/resource?r=microsnow_protist&v=1.2
權利
研究者應尊重以下權利聲明。:
此資料的發布者及權利單位為 UiT The Arctic University of Norway。 This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC 4.0) License.
GBIF 註冊
此資源已向GBIF註冊，並指定以下之GBIF UUID: 5e2eccfd-47a8-4029-946a-c1bec35d86b7。 UiT The Arctic University of Norway 發佈此資源，並經由GBIF Norway同意向GBIF註冊成為資料發佈者。
關鍵字
Samplingevent
聯絡資訊
- 出處 ●
- 連絡人 ●
- 研究主持人
https://orcid.org/0000-0001-9577-3935
- 處理者
- 處理者
地理涵蓋範圍
Station Svartnes, Balsfjorden, Norway (190 m bottom depth)
| 界定座標範圍 | 緯度南界 經度西界 [69.363, 19.117], 緯度北界 經度東界 [69.363, 19.117] |
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分類群涵蓋範圍
N/A
| Kingdom | Chromista, Protozoa |
|---|---|
| Phylum | Haptophyta, Myzozoa, Bacillariophyta, Ochrophyta, Cryptophyta, Choanozoa, Ciliophora |
| Class | Dinophyceae, Chrysophyceae, Cryptophyceae, Litostomatea, Choanoflagellatea, Prostomatea, Oligotrichea, Prymnesiophyceae, Dictyochophyceae, Xanthophyceae, Bacillariophyceae, NA |
| Order | Oligotrichida, Acanthoecida, Naviculales, Gonyaulacales, Chromulinales, Bacillariales, Gymnodiniales, Tovelliales, NA, Leptocylindrales, Chaetocerotanae incertae sedis, Prymnesiales, Thalassiosirales, Strombidiida, Prorodontida, Pedinellales, Peridiniales, Cyclotrichiida, Pyrenomonadales, Craspedida, Dinophysiales, Mischococcales, Licmophorales, Choreotrichida |
| Family | Leptocylindraceae, Gymnodiniaceae, Pleurochloridaceae, Codonosigaceae, Naviculaceae, Thalassiosiraceae, Prymnesiaceae, Leegaardiellidae, Dinophysaceae, Prorodontidae, Actinomonadaceae, Acanthoecidae, Peridiniaceae, Licmophoraceae, Cladopyxidaceae, Mesodiniidae, Gonyaulacaceae, Protoperidiniaceae, Geminigeraceae, Warnowiaceae, Tovelliaceae, Heterocapsaceae, Strombidiidae, Dinobryaceae, Chaetocerotaceae, NA, Bacillariaceae |
時間涵蓋範圍
| 起始日期 | 2017-06-19 |
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| 起始日期 | 2017-06-21 |
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| 起始日期 | 2018-06-13 |
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計畫資料
Vertical export of organic carbon from pelagic to benthic ecosystems consists mainly of copepod faecal pellets and detrital aggregates (marine snow). However, it is estimated that 20-70 % of the aggregate-associated carbon is degraded by grazing organisms within the euphotic zone. One copepod species believed to play a vital role in particle flux reduction is Microsetella norvegica, but little is known about its ecology and biology. In the first year (2017) of MICROSNOW, we successfully completed high-resolution field-investigations focusing on the role of M. norvegica for regulating the pelagic-benthic coupling in Balsfjord. More specifically, we investigated the zooplankton community composition, aggregate distribution, hydrographical and chemical properties of the water column and vertical carbon fluxes. Experiments on M. norvegica egg hatching and respiration rates at 4 different temperatures, grazing experiments and behavioural studies were successfully completed and data are now being processed. In the second year of the project we will continue building a strong data-set by including new complementary investigations. We will also focus on dissemination of results through outreach and publication. Novelties within the project are: 1) high-resolution in situ mapping of marine snow and copepods, 2) identifying interactions between sinking particles and copepods through in situ video-observations and experiments and 3) increased knowledge on M. norvegica biology and its role for pelagic-benthic coupling. This is a timely approach in the context of the future role of coastal marine ecosystems as a sink or source for atmospheric CO2, and for building knowledge on the resources available for harvestable species.
| 計畫名稱 | MICROSNOW |
|---|---|
| 辨識碼 | Microsnow_2017_2018_Balsfjord |
| 經費來源 | Financially supported by fram center flagship “Climate Change in Fjord and Coast” grant nr. 2019147470 292018 |
| 研究區域描述 | Svartnes, Balsfjord, Northern Norway |
| 研究設計描述 | Field sampling and analysis of field data in combination with experiments in the laboratory |
參與計畫的人員:
取樣方法
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.
| 研究範圍 | 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. |
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方法步驟描述:
- 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).
額外的詮釋資料
| 替代的識別碼 | 5e2eccfd-47a8-4029-946a-c1bec35d86b7 |
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| https://ipt.gbif.no/resource?r=microsnow_protist |