說明
This dataset is a compilation of stable isotope ratios of C, N and S in tissues of 2456 sea stars sampled from 1985 to 2017 in the Southern Ocean (Antarctica and Subantarctic Islands). Stable isotope values were measured in the framework of Baptiste Le Bourg's PhD thesis at University of Liège, entitled “Trophic ecology of Southern Ocean sea stars: Influence of environmental drivers on trophic diversity”. Samples were provided by the University of Liège (Belgium), the Université Libre de Bruxelles (Belgium), the National Museum of Natural History (Paris, France) and the Institute of Oceanology of the Polish Academy of Sciences (Sopot, Poland). This work was supported by BELSPO through the vERSO and RECTO projects (contracts no. BR/132/A1/vERSO and BR/154/A1/RECTO).
資料紀錄
此資源出現紀錄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 2,456 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
請注意，此資料集為舊版本。 研究者應依照以下指示引用此資源。:
Le Bourg B, Moreau C, Lepoint G, Danis B, Michel L N (2021): Stable isotope ratios of C, N and S in Southern Ocean sea stars (1985-2017). v1.4. Antarctic Biodiversity Information Facility (ANTABIF). Dataset/Occurrence. https://ipt.biodiversity.aq/resource?r=antarctic_subantarctic_asteroidea_isotopes&v=1.4
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 SCAR - AntOBIS。 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: ff3984d7-84bd-4f3a-b843-666faa4c1696。 SCAR - AntOBIS 發佈此資源，並經由Ocean Biodiversity Information System同意向GBIF註冊成為資料發佈者。
關鍵字
Occurrence; Southern Ocean; sea stars; stable isotopes; trophic ecology; Specimen
聯絡資訊
http://orcid.org/0000-0002-1455-2020
- 元數據提供者 ●
- 出處 ●
- 使用者 ●
- 連絡人
- 出處
地理涵蓋範圍
Antarctic and Sub-Antarctic regions of the Southern Ocean
| 界定座標範圍 | 緯度南界 經度西界 [-76.273, -127.267], 緯度北界 經度東界 [-47.717, 162.201] |
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分類群涵蓋範圍
Echinodermata, Asteroidea
| Class | Asteroidea (Sea star) |
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| Family | Echinasteridae, Pterasteridae |
| Genus | Acodontaster, Anasterias, Bathybiaster, Anseropoda, Cheiraster, Diplasterias, Eremicaster, Henricia, Hymenaster, Hyphalaster, Lophaster, Lysasterias, Mixaster, Notasterias, Odontaster, Paralophaster, Pedicellaster, Peribolaster, Perknaster, Pteraster, Smilasterias, Solaster |
| Subgenus | Cheiraster (Luidiaster) |
| Species | Acodontaster capitatus, Acodontaster conspicuus, Acodontaster elongatus, Acodontaster hodgsoni, Acodontaster marginatus, Adelasterias papillosa, Anasterias antarctica, Anasterias perrieri, Anteliaster scaber, Asterina fimbriata, Bathybiaster loripes, Bathybiaster vexillifer, Cheiraster (Luidiaster) gerlachei, Cheiraster (Luidiaster) planeta, Cheiraster complex, Cheiraster hirsutus, Cosmasterias lurida, Cuenotaster involutus, Cycethra verrucosa, Diplasterias brandti, Diplasterias brucei, Diplasterias meridionalis, Diplodontias singularis, Dytaster felix, Eremicaster pacificus, Freyastera tuberculata, Freyella attenuata, Glabraster antarctica, Henricia smilax, Hippasteria phrygiana, Hymenaster sacculatus, Kampylaster incurvatus, Kenrickaster pedicellaris, Labidiaster annulatus, Labidiaster radiosus, Leptychaster flexuosus, Leptychaster kerguelensis, Lophaster furcilliger, Lophaster gaini, Lophaster stellans, Lysasterias adeliae, Lysasterias digitata, Macroptychaster accrescens, Notasterias armata, Notasterias bongraini, Notasterias candicans, Notasterias stolophora, Notioceramus anomalus, Odinella nutrix, Odontaster meridionalis, Odontaster pearsei, Odontaster penicillatus, Odontaster roseus, Odontaster validus, Paralophaster antarcticus, Paralophaster lorioli, Peribolaster folliculatus, Peribolaster macleani, Perknaster densus, Perknaster fuscus, Perknaster sladeni, Porcellanaster ceruleus, Psalidaster mordax, Pseudarchaster discus, Psilaster charcoti, Pteraster affinis, Pteraster stellifer, Remaster gourdoni, Rhopiella hirsuta, Saliasterias brachiata, Smilasterias scalprifera, Smilasterias triremis, Solaster longoi, Solaster regularis, Styracaster chuni, Tremaster mirabilis |
時間涵蓋範圍
| 起始日期 / 結束日期 | 1985-01-11 / 2017-03-08 |
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計畫資料
The data presented here were obtained in the framework of a PhD project. The goal of this PhD project was to study the trophic ecology of sea stars in the Southern Ocean using stable isotopes of carbon, nitrogen and sulfur. In particular, the relationship between trophic ecology and environmental conditions was assessed. The functioning of Southern Ocean ecosystems and the impact of climate change on them was thus a central theme of the PhD thesis. Indeed, changes in the availability of trophic resources induced by environmental changes can lead to changes of trophic ecology of species and of trophic interactions between them. This PhD thesis was carried out as part of the vERSO (Ecosystem Responses to global change: a multiscale approach in the Southern Ocean; BR/132/A1/vERSO) and RECTO (Refugia and Ecosystem Tolerance in the Southern Ocean; BR/154/A1/RECTO) projects, funded by the Belgian Science Policy Office (BELSPO).
| 計畫名稱 | Trophic ecology of Southern Ocean sea stars: Influence of environmental drivers on trophic diversity |
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| 經費來源 | This project was funded thanks to a FRIA doctoral grant (Fund for research training in industry and agriculture) provided by the FRS-FNRS. |
參與計畫的人員:
取樣方法
| 研究範圍 | A double sampling strategy was set up to maximise the scope of this PhD thesis. First, sea stars were collected in the Southern Ocean during campaigns taking place in the framework of the vERSO and RECTO projects from December 2015 to March 2017. Second, suitable samples originating from multiple oceanographic campaigns and surveys from January 1985 to January 2015 were retrieved from archived collections stored in museums or institutions. Institutions that provided samples included the Université Libre de Bruxelles (Belgium), the National Museum of Natural History (Paris, France) and the Institute of Oceanology of the Polish Academy of Sciences (Sopot, Poland). |
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方法步驟描述:
- Sampling: Sea stars were sampled in the Southern Ocean from 1985 to 2017 throughout multiple oceanographic campaigns. Storage: Depending of the sampling campaign, sea stars were frozen, dried, stored in ethanol or fixed with formaldehyde and then stored in ethanol. Sample preparation: For each sea star, one or several arms were separated from the central disc. Internal organs and podia were removed in each arm. With the exception of the already dried samples, the tegument and the podia of each arm were washed with demineralised water and oven-dried at 50°C during 48 hours. All samples were then homogenised into powder. Carbonates were removed from subsamples by exposing subsamples to 37 % hydrochloric acid vapour during 48 hours. Acidified subsamples were then kept at 60°C until further sample preparation. Stable isotope analysis: The subsamples were then precisely weighed (ca 2.5-3 mg) in 5×8 tin cups with ca 3 mg of tungsten trioxide. Their elemental composition and their stable isotope values were analysed with an elemental analyser coupled to a continuous-flow isotope-ratio mass spectrometer. Impact of preservation on stable isotope values: Correction factors were added to the δ13C and δ34S values of sea stars fixed with formaldehyde and/or stored in ethanol as fixation in formaldehyde and preservation in ethanol impact stable isotope values in sea stars (Le Bourg et al., 2020). For samples stored in ethanol, a correction factor of –0.6 ‰ was subtracted to δ13C values. For samples fixed with formaldehyde and then stored in ethanol, a correction factor of 0.2 ‰ was added to δ13C values to take into account the effects of both ethanol (–0.6 ‰) and formaldehyde (+0.8 ‰) on δ13C values. A correction factor of 1.5 ‰ was also added to δ34S values for samples fixed with formaldehyde. Reference: Le Bourg B, Lepoint G, Michel LN. 2020. Effects of preservation methodology on stable isotope compositions of sea stars. Rapid Communications in Mass Spectrometry 34, e8589.