說明
The dataset contains occurrences and images of two flatworm species (Itaspiella helgolandica and Notocaryoplana arctica) in the family Otoplanidae from northern Norway, Greenland and Svalbard.
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 55 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。:
Vikberg Wernström J, Hang Kwan Y, Vohnname T R, Glud R N, Altenburger A (2025). Circumpolar otoplanid flatworms. Version 1.0. UiT The Arctic University of Norway. Occurrence dataset. https://ipt.gbif.no/resource?r=notocaryoplana&v=1.0
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 (CC-BY 4.0) License.
GBIF 註冊
此資源已向GBIF註冊，並指定以下之GBIF UUID: 97f440e7-d8c5-437d-b6bd-ad0da44bc70e。 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
Occurrence; Observation
聯絡資訊
- 出處 ●
- 連絡人
- PhD Fellow
- Lars Thørings veg 10
- 41342289
https://orcid.org/0000-0003-2902-7664
- 出處
- PhD Student
- 出處
- PostDoc
- 出處
- 元數據提供者 ●
- 連絡人
- Associate Professor
地理涵蓋範圍
Northern Norway, Greenland and Svalbard.
| 界定座標範圍 | 緯度南界 經度西界 [64.179, -51.746], 緯度北界 經度東界 [78.24, 18.907] |
|---|
分類群涵蓋範圍
All flatworms herein were identified to at least family level.
| Family | Otoplanidae (otoplanid flatworms) |
|---|---|
| Species | Notocaryoplana arctica, Itaspiella helgolandica |
時間涵蓋範圍
| 起始日期 / 結束日期 | 2024-04-26 / 2024-08-14 |
|---|
計畫資料
Otoplanid flatworms live in the surf zone of sandy beaches. In spite of their presumed poor dispersal capabilities, several taxa have been recorded across the Arctic. This project was designed to investigate explanatory factors for their wide distribution such as cryptic speciation and continuous, cross-oceanic dispersal.
| 計畫名稱 | Phylogeographic study of circumpolar otoplanid flatworms |
|---|---|
| 經費來源 | Funding for this study was provided by the University of the Arctic’s North2North travel grant and by the Norwegian Biodiversity Information Centre. |
| 研究區域描述 | The project investigated flatworms in areas of northern Norway, Greenland and Svalbard. |
| 研究設計描述 | Flatworms were collected, studied morphologically, and subjected to DNA extraction and amplification to investigate their phylogeography and the presence of cryptic species. |
參與計畫的人員:
取樣方法
Flatworm specimens were retrieved from marine beaches in Greenland (Nuuk), Svalbard (Longyearbyen), and Norway by collecting surf-zone sand and seawater in a bucket. In northern Norway, two locations were sampled – the in-fjord Telegrafbukta beach in Tromsø city, and the island of Sommarøy in the outermost archipelago. In Nuuk and Sommarøy, a sea water salinity measurement was taken using a Kern Optics analog refractometer. Flatworms were extracted from recovered sand by mixing it with a solution of 7% MgCl2 in sea water in an Erlenmeyer flask. The flask was turned upside down a couple of times before decanting the aqueous solution with suspended flatworms into a 63 µm sieve. The sieve was placed in a petri dish containing sea water before flatworms were manually picked out, and specimens of each species placed into separate embryo dishes using a glass Pasteur pipette. When practically possible, specimens were starved in clean seawater in a refrigerator for a few days before they were photographed under microscopes or stereo microscopes, depending on what was available at the sampling location.
| 研究範圍 | Flatworms were sampled in northern Norway, Greenland and Svalbard. |
|---|
方法步驟描述:
- Flatworm specimens were retrieved from marine beaches in Greenland (Nuuk), Svalbard (Longyearbyen), and Norway by collecting surf-zone sand and seawater in a bucket. In northern Norway, two locations were sampled – the in-fjord Telegrafbukta beach in Tromsø city, and the island of Sommarøy in the outermost archipelago. In Nuuk and Sommarøy, a sea water salinity measurement was taken using a Kern Optics analog refractometer. Flatworms were extracted from recovered sand by mixing it with a solution of 7% MgCl2 in sea water in an Erlenmeyer flask. The flask was turned upside down a couple of times before decanting the aqueous solution with suspended flatworms into a 63 µm sieve. The sieve was placed in a petri dish containing sea water before flatworms were manually picked out, and specimens of each species placed into separate embryo dishes using a glass Pasteur pipette. When practically possible, specimens were starved in clean seawater in a refrigerator for a few days before they were photographed under microscopes or stereo microscopes, depending on what was available at the sampling location.