Descripción
The data was collected during the Nansen Legacy joint cruise (JC2-2, cruise number: 2021710) from 24.08 - 25.09.2021 onboard the research vessel RV Kronprins Haakon, along a transect in the Arctic Basin from 81N to 87N. The dataset contains abundance and biomass of sea-ice meiofauna (> 20 µm) including large protists such as foraminifers and ciliates and metazoans eggs. Sea-ice meiofauna were identified and counted with stereo microscopy and result are given as Individuals per liter (cells/L) and Individuals per square meter (Ind/m2). Biomass (μg C Ind.-1) was only determined for alive individuals according to carbon contents for ice meiofauna taxa based on literature summarized in Ehrlich et al. (2021, doi: https://doi.org/10.1525/elementa.2020.00169), and carbon values for foraminifers were provided by de Freitas et al. (2021) for benthic species (Bolivinia sp.: 0.00875 μg C Ind.-1; Elphidium sp.: 0.126 μg C Ind.-1, https://doi.org/10.2113/gsjfr.51.4.249) and Anglada-Ortiz et al. (submitted to PiO) for the pelagic species Neogloboquadrina pachyderma (0.0013 μg C Ind.-1).
Registros
Los datos en este recurso de evento de muestreo han sido publicados como Archivo Darwin Core(DwC-A), el cual es un formato estándar para compartir datos de biodiversidad como un conjunto de una o más tablas de datos. La tabla de datos del core contiene 51 registros.
también existen 2 tablas de datos de extensiones. Un registro en una extensión provee información adicional sobre un registro en el core. El número de registros en cada tabla de datos de la extensión se ilustra a continuación.
Este IPT archiva los datos y, por lo tanto, sirve como repositorio de datos. Los datos y los metadatos del recurso están disponibles para su descarga en la sección descargas. La tabla versiones enumera otras versiones del recurso que se han puesto a disposición del público y permite seguir los cambios realizados en el recurso a lo largo del tiempo.
Versiones
La siguiente tabla muestra sólo las versiones publicadas del recurso que son de acceso público.
¿Cómo referenciar?
Los usuarios deben citar este trabajo de la siguiente manera:
Marquardt M, Bluhm B, Gradinger R (2024). Sea-ice meiofauna biodiversity from the Nansen Legacy joint cruise JC2-2 (cruise number: 2021710). Version 1.8. The Nansen Legacy Project. Samplingevent dataset. DOI: 10.11582/2023.00080
Derechos
Los usuarios deben respetar los siguientes derechos de uso:
El publicador y propietario de los derechos de este trabajo es The Nansen Legacy Project. Esta obra está bajo una licencia Creative Commons de Atribución/Reconocimiento (CC-BY 4.0).
Registro GBIF
Este recurso ha sido registrado en GBIF con el siguiente UUID: 8daf75ea-e1c4-4231-9848-b3ba4928aa4a. The Nansen Legacy Project publica este recurso y está registrado en GBIF como un publicador de datos avalado por GBIF Norway.
Palabras clave
Samplingevent; sea-ice protist; sea-ice meiofauna; sympagic; northern Barents Sea; sea ice; Observation
Contactos
- Originador ●
- Usuario ●
- Punto De Contacto
https://orcid.org/0000-0003-2913-067X
- Originador
- Originador
Cobertura geográfica
The data was collected during the Nansen Legacy joint cruise (JC2-2, cruise number: 2021710) from 24.08 - 25.09.2021 onboard the research vessel RV Kronprins Haakon, along a transect in the Arctic Basin from 81N to 87N.
| Coordenadas límite | Latitud Mínima Longitud Mínima [83,899, -17,57], Latitud Máxima Longitud Máxima [87,484, 25,411] |
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Cobertura taxonómica
N/A
| Reino | Chromista, Animalia |
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| Filo | Arthropoda, Ciliophora, Xenacoelomorpha |
| Class | Litostomatea, Copepoda |
| Orden | Haptorida, Harpacticoida, Acoela |
| Familia | Ectinosomidae, Didiniidae |
Cobertura temporal
| Fecha Inicial / Fecha Final | 2021-09-03 / 2021-09-18 |
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Datos del proyecto
The Nansen Legacy is a novel and holistic Arctic research project providing integrated scientific knowledge on the rapidly changing marine climate and ecosystem. A new knowledge base is required to facilitate a sustainable management of the northern Barents Sea and adjacent Arctic Basin through the 21st century. The Nansen Legacy unites about 280 researchers, students, and technicians from ten Norwegian research institutions. The research team includes interdisciplinary arctic marine expertise within physical, chemical, and biological oceanography, as well as geologists, modelers and underwater robotic engineers. Jointly we investigate the past, present and future climate and ecosystem of the northern Barents Sea. In total, the project has spent over 350 days at sea between 2018 and 2022, using the new Norwegian research icebreaker ‘Kronprins Haakon’ as main research platform. The ship-based sampling is complemented by the use of underwater robotics, year-round moored observing platforms and satellite-based observations. Complementary model tools are used to integrate field-based observations, and to investigate the dynamics of the physical and biological components of the northern Barents Sea climate and ecosystem at present and in the future. The Nansen Legacy is home to over 70 early career scientists, providing them with a unique collaborative community and supervision across institutions and disciplines. This gives rise to a new generation of holistic thinking Arctic research leaders. The Nansen Legacy runs for seven years (2018–2024), and is funded by the Research Council of Norway and the Norwegian Ministry of Education and Research. They provide 50% of the budget while the participating institutions contribute 50% in-kind. The total budget for the Nansen Legacy project is 740 mill. NOK.
| Título | The Nansen Legacy |
|---|---|
| Identificador | AeN |
| Fuentes de Financiación | This study was funded by the Research Council of Norway through the project The Nansen Legacy (RCN # 276730). |
| Descripción del área de estudio | Arctic Basin |
| Descripción del diseño | Our study goals were to characterize sea ice related biota including uni- and multicellular heterotrophs over the entire seasonal cycle, along a latitudinal gradient in the northwestern Barents Sea and adjacent seas Nansen Legacy goals: https://arvenetternansen.com/our-goals/ |
Métodos de muestreo
At ice covered stations, ice cores were taken for the determination of abundance and biomass of sea-ice meiofauna and protists (lowermost 30 cm). Ice cores were taken from undeformed level ice areas with a KOVACS ice corer (Mark II coring system, diameter 9 cm) and were cut on a cutting board into the following sections, given as distance from the ice-water interface: 0-3 cm (bottom ice layer), 3-10 cm, 10-20 cm, 20-30 cm. All sea-ice core sections were melted in the dark and at 4°C within 24-28 h to and to reduce negative impacts related to osmotic stress 100 ml filtered seawater (< 0.22 µm) was initially added per 1 cm section. More detailed sampling procedure you find in the Nansen Legacy sampling protocol V10 chapter 14: Link: https://septentrio.uit.no/index.php/nansenlegacy/article/view/6684 Citation: The Nansen Legacy (2022). Sampling Protocols: Version 10. The Nansen Legacy Report Series 32/2022. DOI: https://doi.org/10.7557/nlrs.6684
| Área de Estudio | The data was collected during the Nansen Legacy joint cruise (JC2-2, cruise number: 2021710) from 24.08 - 25.09.2021 onboard the research vessel RV Kronprins Haakon, along a transect in the Arctic Basin from 81N to 87N. Ice cores were taken at three ice covered station. |
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Descripción de la metodología paso a paso:
- Sea-ice meiofauna were identified and counted with stereo microscopy and result are given as Individuals per liter (cells/L) and Individuals per square meter (Ind/m2). Biomass (μg C Ind.-1) was only determined for alive individuals according to carbon contents for ice meiofauna taxa based on literature summarized in Ehrlich et al. (2021, doi: https://doi.org/10.1525/elementa.2020.00169), and carbon values for foraminifers were provided by de Freitas et al. (2021) for benthic species (Bolivinia sp.: 0.00875 μg C Ind.-1; Elphidium sp.: 0.126 μg C Ind.-1, https://doi.org/10.2113/gsjfr.51.4.249) and Anglada-Ortiz et al. (submitted to PiO) for the pelagic species Neogloboquadrina pachyderma (0.0013 μg C Ind.-1).
Datos de la colección
| Nombre de la Colección | Sea-ice meiofauna biodiversity JC22 |
|---|---|
| Identificador de la Colección | symmeioJC22 |
| Métodos de preservación de los ejemplares | Formalina, Alcohol |
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Metadatos adicionales
| Identificadores alternativos | 8daf75ea-e1c4-4231-9848-b3ba4928aa4a |
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| https://ipt.gbif.no/resource?r=symmeio_jc22 |