Sampling event

Taxonomy and vertical export rates of protist cells, planktonic protist carbon (PPC) and zooplankton abundance and biomass from long-term sediment traps in the shelves north and east of Svalbard, as part of the Nansen Legacy project and the Arctic PRIZE project

最新版本 由 The Nansen Legacy Project 發佈於 2022年9月30日 The Nansen Legacy Project
發布日期:
2022年9月30日
授權條款:
CC-BY 4.0

下載最新版本的 Darwin Core Archive (DwC-A) 資源,或資源詮釋資料的 EML 或 RTF 文字檔。

DwC-A資料集 下載 56 紀錄 在 English 中 (75 KB) - 更新頻率: 無計畫更新
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元數據RTF文字檔 下載 在 English 中 (11 KB)

說明

This dataset includes taxonomy and vertical export rates of zooplankton abundance and biomass from long-term sediment traps between October 2017 and September 2018. Samples were collected from 2 moorings as part of the Arctic PRIZE project (SAMS, UK) and the sediment traps were processed as part of the Nansen Legacy project (UiT, NO). Records in the dataset can be divided into 2 moorings by the locationID column, either ESv (shelf east of Svalbard) or NSv (shelf north of Svalbard).

For the ESv mooring, the mooring was deployed in 183 m water depth on 21 September 2017 north of Svalbard from the R/V Lance (A-TWAIN cruise). The mooring was recovered by the R/V James Clark Ross (JR17006) on the 17 June 2018 and sensor data were retrieved and instrument batteries replaced for redeployment on the 20 June 2018. A final recovery of all sensors was done by the R/V Kronprins Haakon (Nansen-Legacy cruise) on 18 November 2019.

For the NSv mooring, the mooring was deployed in 234 m of water on 23 September 2017 north of Svalbard from the R/V Lance (A-TWAIN cruise). The mooring was recovered by the R/V James Clark Ross (JR17006) on the 14 June 2018 and sensor data were retrieved and instrument batteries replaced for redeployment on the 22 June 2018. A final recovery of all sensors was done by the R/V Kronprins Haakon (Nansen-Legacy cruise) on 25 November 2019.

Samples were taken from a long-term sequential sediment trap bottles (McLane Research Laboratories Inc., 21 bottles, aperture area of 0.5 m^2). Sample bottles (500 mL) were programmed to rotate at intervals ranging from 7 to 31 days. Sample bottles were filled with filtered seawater poisoned with formalin (4% v/v), with the salinity adjusted to 40 by adding NaCl.

For the zooplankton, subsamples (100-150 mL) were taken for the analysis of a minimum of 300 zooplankton. Zooplankton were identified to the lowest taxonomic level possible using a stereomicroscope (Zeiss Discovery V20) and measured with an accuracy of 10 μm using the ZoopBiom digitizing system (Roff & Hopcroft, 1986). Biomass (dry weight) was estimated using published length-weight regressions for these or similar species (Ershova et al., 2015). The dry weight of each taxon was then converted to carbon weight following Kiørboe (2013). Species were also classified by biogeographic affinity.

Samples (0.5-2 ml) for planktonic protists identification were settled in Utermöhl sedimentation chambers for 24 h. Settled protists were counted using 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 protists (3–20 μm) were counted at 400× magnification by moving the field of view along the length of three transverse transects (in special cases a magnification of 600× was used for taxonomic identification). The taxa were identified to the lowest taxonomic level possible following the World Register of Marine Species (WoRMS). Planktonic protist carbon (PPC) was calculated by multiplying the cell counts of individual cells and resting spores by the associated carbon content of each species or group depending on cell sizes (Menden-Deuer & Lessard, 2000).

All daily fluxes (vertical export rates) were calculated depending on the volume of the subsamples, the trap area (0,5 m), and the sampling duration.

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 56 筆紀錄。

亦存在 2 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。

Event (核心)
56
ExtendedMeasurementOrFact 
3386
Occurrence 
1076

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。

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 The Nansen Legacy Project。 This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License.

GBIF 註冊

此資源已向GBIF註冊,並指定以下之GBIF UUID: 313fd6b1-2c8b-4419-a5dd-dc3176d62abc。  The Nansen Legacy Project 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; Earth Science > BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS > PLANKTON > ZOOPLANKTON; Earth Science > BIOLOGICAL CLASSIFICATION > PROTISTS

聯絡資訊

Christine Schumann Dybwad
  • 元數據提供者
PhD Student
University of Tromsø
NO
Marit Reigstad
  • 出處
  • 連絡人
Professor in Marine Ecology
University of Tromsø
NO
Yasemin V. Bodur
  • 出處
  • 連絡人
PhD Student
University of Tromsø
NO
Christine Schumann Dybwad
  • 元數據提供者
PhD candidate
University of Tromsø
NO
Finlo Cottier
  • 出處
  • 連絡人
Professor in Physical Oceanography
University of Tromsø
NO
Luke Marsden
  • 元數據提供者
  • 使用者
  • 連絡人
Data Manager
University Centre in Svalbard
Longyearbyen
SJ

地理涵蓋範圍

Northern Barents Sea, shelf north of Svalbard and shelf East of Svalbard

界定座標範圍 緯度南界 經度西界 [-90, -180], 緯度北界 經度東界 [90, 180]

計畫資料

The Nansen Legacy is a novel and holistic Arctic research project providing integrated scientific knowledge on the rapidly changing marine climate and ecosystem. A new knowledge base is required to facilitate a sustainable management of the northern Barents Sea and adjacent Arctic Basin through the 21st century. The Nansen Legacy unites about 280 researchers, students, and technicians from ten Norwegian research institutions. The research team includes interdisciplinary arctic marine expertise within physical, chemical, and biological oceanography, as well as geologists, modelers and underwater robotic engineers. Jointly we investigate the past, present and future climate and ecosystem of the northern Barents Sea. In total, the project has spent over 350 days at sea between 2018 and 2022, using the new Norwegian research icebreaker ‘Kronprins Haakon’ as main research platform. The ship-based sampling is complemented by the use of underwater robotics, year-round moored observing platforms and satellite-based observations. Complementary model tools are used to integrate field-based observations, and to investigate the dynamics of the physical and biological components of the northern Barents Sea climate and ecosystem at present and in the future. The Nansen Legacy is home to over 70 early career scientists, providing them with a unique collaborative community and supervision across institutions and disciplines. This gives rise to a new generation of holistic thinking Arctic research leaders.

計畫名稱 Nansen Legacy Project
辨識碼 https://www.wikidata.org/wiki/Q110857128
經費來源 The Nansen Legacy runs for seven years (2018–2024), and is funded by the Research Council of Norway and the Norwegian Ministry of Education and Research. They provide 50% of the budget while the participating institutions contribute 50% in-kind. The total budget for the Nansen Legacy project is 740 mill. NOK. RCN # 276730
研究區域描述 Northern Barents Sea

參與計畫的人員:

Marit Reigstad

額外的詮釋資料