Circumpolar otoplanid flatworms

Registros de Dados

Os dados deste recurso de ocorrência foram publicados como um Darwin Core Archive (DwC-A), que é o formato padronizado para compartilhamento de dados de biodiversidade como um conjunto de uma ou mais tabelas de dados. A tabela de dados do núcleo contém 55 registros.

Também existem 1 tabelas de dados de extensão. Um registro de extensão fornece informações adicionais sobre um registro do núcleo. O número de registros em cada tabela de dados de extensão é ilustrado abaixo.

This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.

Versões

A tabela abaixo mostra apenas versões de recursos que são publicamente acessíveis.

Como citar

Pesquisadores deveriam citar esta obra da seguinte maneira:

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

Direitos

Pesquisadores devem respeitar a seguinte declaração de direitos:

O editor e o detentor dos direitos deste trabalho é UiT The Arctic University of Norway. This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.

GBIF Registration

Este recurso foi registrado no GBIF e atribuído ao seguinte GBIF UUID: 97f440e7-d8c5-437d-b6bd-ad0da44bc70e.  UiT The Arctic University of Norway publica este recurso, e está registrado no GBIF como um publicador de dados aprovado por GBIF Norway.

Palavras-chave

Occurrence; Observation

Contatos

Cobertura Geográfica

Northern Norway, Greenland and Svalbard.

Cobertura Taxonômica

All flatworms herein were identified to at least family level.

Cobertura Temporal

Dados Sobre o Projeto

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.

O pessoal envolvido no projeto:

Métodos de Amostragem

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.

Descrição dos passos do método:

1. 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.

Metadados Adicionais