說明
This dataset provides bulk stable isotope values of carbon and nitrogen for benthic fauna and some zooplankton collected in the Barents Sea during five sampling campaigns during 2018-2021; August 2018, August 2019, December 2019, March 2021 and May 2021. Benthic epifauna were collected using a Campelen or beam trawl and infauna were collected using a box corer. During the 2018 sampling campaign, zooplankton was also collected using a Harstad trawl. Upon collection, all fauna were sorted and identified to the lowest taxonomic level possible while in cold water. Muscle tissue was sub-sampled from large taxa while small taxa were kept whole. All samples were frozen at -20°C until further analysis. In the laboratory, samples were thawed slightly to allow for sub-sampling as needed, then freeze dried for 48 hours. After freeze drying, samples were ground to a fine powder using a mortar and pestle and approximately 1mg of sample was packed into tin capsules for isotopic and elemental analysis. For taxa containing carbonate (e.g., shells, echinoderms) a sub-sample of the freeze-dried powder was also acidified with 1M hydrochloric acid using a dropwise method until visible dissolution ceased. These sub-samples were then re-dried in an oven and packed into tins for analysis like the non-acidified samples. All samples were analyzed for carbon and nitrogen content and isotope ratios at the CLIPT laboratory at the University of Oslo using the Thermo Fischer Scientific 230 EA IsoLink IRMS system comprised of a DeltaV Advantage Stable Isotope Mass Spectrometer coupled to a Flash Elemental Analyzer. The resulting isotope data are reported in delta notation: δnX (‰) = [(Rsample – Rstandard) / Rstandard ] x 1000 where R is the ratio of heavy:light isotopes of the element X in our sample relative to the reference standards Vienna PeeDee Belemnite (VPDB, carbon, Craig, 1957) and air (nitrogen, Mariotti, 1983). During analysis, internal reference standards L-glutamic acid and glycine were calibrated to the International Atomic Energy Agency standards calcium carbonate (NBS19) and lithium carbonate (LSVEC) to normalize carbon isotope values to the δ13CVPDB-scale as well as to USGS40 and USGS41 to normalize nitrogen isotope values to the δ15NAIR-scale. The carbon and nitrogen content data are reported in weight percent.
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 82 筆紀錄。
亦存在 3 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)
- ExtendedMeasurementOrFact
- Occurrence
- ResourceRelationship
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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。
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。:
Amanda Ziegler, Bodil Bluhm, Thaise Ricardo de Freitas, Arunima Sen, Èric Jordà-Molina, Silvia Hess, Elizabeth Alve, Paul Renaud, Henning Reiss, Lis Lindal Jørgensen, Emmelie Åström, Raphaëlle Descôteaux (2023): Bulk stable isotopes of carbon and nitrogen in benthic epifauna, infauna and zooplankton collected from the Barents Sea during the Nansen Legacy project 2018-2021 https://doi.org/10.21335/NMDC-1921275259
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: 996da13e-a54b-42ca-a096-d7bf5dfff25b。 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
Oceans > Ocean chemistry > Stable Isotopes; Biosphere > Ecosystems > Marine Ecosystems > Benthic; Samplingevent
聯絡資訊
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地理涵蓋範圍
Ocean > Arctic Ocean > Barents Sea
界定座標範圍 | 緯度南界 經度西界 [75.866, 24.53], 緯度北界 經度東界 [83.384, 34.569] |
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時間涵蓋範圍
起始日期 / 結束日期 | 2018-08-09 / 2021-05-16 |
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