Description
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.
Enregistrements de données
Les données de cette ressource occurrence ont été publiées sous forme d'une Archive Darwin Core (Darwin Core Archive ou DwC-A), le format standard pour partager des données de biodiversité en tant qu'ensemble d'un ou plusieurs tableurs de données. Le tableur de données du cœur de standard (core) contient 55 enregistrements.
1 tableurs de données d'extension existent également. Un enregistrement d'extension fournit des informations supplémentaires sur un enregistrement du cœur de standard (core). Le nombre d'enregistrements dans chaque tableur de données d'extension est illustré ci-dessous.
Cet IPT archive les données et sert donc de dépôt de données. Les données et métadonnées de la ressource sont disponibles pour téléchargement dans la section téléchargements. Le tableau des versions liste les autres versions de chaque ressource rendues disponibles de façon publique et permet de tracer les modifications apportées à la ressource au fil du temps.
Versions
Le tableau ci-dessous n'affiche que les versions publiées de la ressource accessibles publiquement.
Comment citer
Les chercheurs doivent citer cette ressource comme suit:
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
Droits
Les chercheurs doivent respecter la déclaration de droits suivante:
L’éditeur et détenteur des droits de cette ressource est UiT The Arctic University of Norway. Ce travail est sous licence Creative Commons Attribution (CC-BY) 4.0.
Enregistrement GBIF
Cette ressource a été enregistrée sur le portail GBIF, et possède l'UUID GBIF suivante : 97f440e7-d8c5-437d-b6bd-ad0da44bc70e. UiT The Arctic University of Norway publie cette ressource, et est enregistré dans le GBIF comme éditeur de données avec l'approbation du GBIF Norway.
Mots-clé
Occurrence; Observation
Contacts
- Créateur ●
- Personne De Contact
- PhD Fellow
- Lars Thørings veg 10
- 41342289
https://orcid.org/0000-0003-2902-7664
- Créateur
- PhD Student
- Créateur
- PostDoc
- Créateur
- Fournisseur Des Métadonnées ●
- Personne De Contact
- Associate Professor
Couverture géographique
Northern Norway, Greenland and Svalbard.
| Enveloppe géographique | Sud Ouest [64,179, -51,746], Nord Est [78,24, 18,907] |
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Couverture taxonomique
All flatworms herein were identified to at least family level.
| Family | Otoplanidae (otoplanid flatworms) |
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| Species | Notocaryoplana arctica, Itaspiella helgolandica |
Couverture temporelle
| Date de début / Date de fin | 2024-04-26 / 2024-08-14 |
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Données sur le projet
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.
| Titre | Phylogeographic study of circumpolar otoplanid flatworms |
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| Financement | Funding for this study was provided by the University of the Arctic’s North2North travel grant and by the Norwegian Biodiversity Information Centre. |
| Description du domaine d'étude / de recherche | The project investigated flatworms in areas of northern Norway, Greenland and Svalbard. |
| Description du design | Flatworms were collected, studied morphologically, and subjected to DNA extraction and amplification to investigate their phylogeography and the presence of cryptic species. |
Les personnes impliquées dans le projet:
Méthodes d'échantillonnage
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.
| Etendue de l'étude | Flatworms were sampled in northern Norway, Greenland and Svalbard. |
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Description des étapes de la méthode:
- 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.
Métadonnées additionnelles
| Identifiants alternatifs | https://ipt.gbif.no/resource?r=notocaryoplana |
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