Descripción
The dataset contains information of the sediment and biological samples taken during the second leg of the ANTARXXVII campaign in the Southern Ocean aboard the BAP Carrasco from January 28, 2020 to March 3, 2020. Surface sediment samples were collected using a Van Veen grab and biological samples were collected using a Van Veen grab, a Rauschert dredge and a rock dredge deployed at multiple stations around King George Island and Deception Island (South Shetland Islands), in the Bransfield Strait and in Hope Bay (Antarctic Peninsula). Sediment samples were collected and dried on board with decontaminated equipment and analyzed for trace element concentrations using ICP-MS in the lab of the Analytical, Environmental & Geo-Chemistry research group of the VUB, Belgium. Biological samples could not be sorted on board but were conserved for further analysis at the Royal Belgian Institute of Natural Sciences, Belgium. The dataset gives an overview on the distribution and abundance of species in the north of the Antarctic Peninsula during the summer season as well as baseline trace element concentrations and distribution in the surface sediments. Sediment samples are published in Delhaye et al. (2023).
Please follow the guidelines from the SCAR Data Policy (SCAR, 2023) when using the data. Please contact us via the contact information provided in the metadata or via data-biodiversity-aq@naturalsciences.be for any inquiry about this dataset. Issues with dataset can be reported at https://github.com/biodiversity-aq/data-publication/
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 38 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:
Delhaye L, Elskens M, Ricaurte-Villota C, Cerpa L, Kochzius M (2024). Sediments and biological samples from the 27th expedition of Peru (ANTARXXVII Leg 2) to Antarctica (Bransfield Strait, South Shetland Islands and Hope Bay) - data. Version 1.3. SCAR - AntOBIS. Samplingevent dataset. https://ipt.biodiversity.aq/resource?r=antarxxvii-leg2&v=1.3
Derechos
Los usuarios deben respetar los siguientes derechos de uso:
El publicador y propietario de los derechos de este trabajo es SCAR - AntOBIS. 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: 50c52782-72ac-4d4a-bee0-014c6aede4df. SCAR - AntOBIS publica este recurso y está registrado en GBIF como un publicador de datos avalado por Ocean Biodiversity Information System.
Palabras clave
Samplingevent; Specimen
Contactos
- Proveedor De Los Metadatos ●
- Originador ●
- Punto De Contacto
https://orcid.org/0000-0002-3407-6295
- Originador
- Originador
- Originador
- Originador
- Punto De Contacto
Cobertura geográfica
Bransfield Strait, Antarctica
| Coordenadas límite | Latitud Mínima Longitud Mínima [-64,095, -62,208], Latitud Máxima Longitud Máxima [-62,14, -56,96] |
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Cobertura taxonómica
Benthic organisms
| Reino | Animalia |
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| Filo | Arthropoda, Mollusca, Echinodermata, Chordata |
| Class | Malacostraca, Bivalvia, Ophiuroidea, Asteroidea, Ostracoda, Gastropoda |
Cobertura temporal
| Fecha Inicial / Fecha Final | 2020-02-02 / 2020-02-26 |
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Datos del proyecto
RECTO applies a multidisciplinary approach in studying evolution and diversity of Southern Ocean faunas. RECTO has 6 main objectives: 1) Reconstruct population histories and phylogenies of selected faunas; 2) Link population histories and refugia to past climate changes; 3) Estimate variation of morphological traits and width of ecological niches; 4) Use physiological and energy limits and traits to model current and future species distributions; 5) Integrate distribution models into hydrodynamic and particle models; and, 6) Develop different scenarios on how target taxa will respond to future climate change. RECTO will focus on six different animal groups, comprising different trophic levels from the micro- over macro-benthos and pelagic crustaceans to fish and seabirds. The selected species differ in their biology, life history traits and dispersal capacities, which are all factors affecting their abilities to cope with environmental changes.
| Título | Refugia and Ecosystem Tolerance in the Southern Ocean (RECTO) |
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| Identificador | BR/154/A1/RECTO |
| Fuentes de Financiación | This project is funded by the Belgian Science Policy (BELSPO). Grant Numbers: BR/154/A1/RECTO |
| Related Projects |
ADVANCE RT/23/ADVANCE |
Personas asociadas al proyecto:
Métodos de muestreo
Sampling at 30 stations was carried out using a Van Veen grab, initially with a large grab (48.5 cm x 47 cm x 25.5 cm) that broke after the first deployment and was replaced by a smaller grab (44 cm x 18.2 cm x 34.5 cm). To ensure sufficient samples, additional replicates were taken per station. The grab was deployed by the crew of the BAP Carrasco, with up to three attempts made at stations where no sample was retrieved due to unsuitable substrate or technical issues, resulting in four abandoned stations. At each successful grab, surface sediments were collected for microbiology, microplastics, and heavy metal studies, with approximately 200 g allocated for heavy metal research. Remaining sediments were shared among research groups and the surplus was sieved to isolate benthos. Benthic organisms found were sorted, photographed, and preserved in ethanol or frozen at -20°C, while tissue samples from brittle stars were preserved in 99% ethanol for DNA analysis before storing in the freezer at -20°C. Rock dredges were used for geological studies but occasionally brought sediments or organisms on board, allowing the team to collect one fish, three sediment samples, three sea stars, and five brittle stars. A Rauschert dredge with a 1 mm mesh size was deployed at three stations on February 26, 2020, after delays caused by weather and technical issues. The dredge was towed at 2 knots for 13–17 minutes per station, with 20 m of cable released per minute and retrieved at 30 m per minute. The first station at 975 m depth was unsuccessful and brought only plankton, amphipods, and ostracods. Adjustments improved results at the next two stations, with the second (46 m depth) yielding diverse organisms, including macroalgae, sponges, sea urchins, and starfish where many of which were not identified due to time constraint. The third station provided significant sediment, benthos, and a large octopus, which was carefully released unharmed. Some samples were shared with collaborators, and algae were not retained due to permit restrictions.
| Área de Estudio | The scientific campaign begins in the afternoon of the 28th of January in Punta Arenas (Chile), the ship left the port on the morning of the next day and reached King George Island on the evening of the 1st of February 2020. The scientific campaign stopped on the 26th of February. |
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Descripción de la metodología paso a paso:
- please see sampling description
Referencias bibliográficas
- Delhaye, Louise J., Marc Elskens, Constanza Ricaurte-Villota, Luis Cerpa, and Marc Kochzius. "Baseline concentrations, spatial distribution and origin of trace elements in marine surface sediments of the northern Antarctic Peninsula." Marine Pollution Bulletin 187 (2023): 114501. https://doi.org/10.1016/j.marpolbul.2022.114501
- The Scientific Committee on Antarctic Research. (2023). SCAR Report 42 - September 2022 - SCAR Data Policy (2022). Zenodo. https://doi.org/10.5281/zenodo.7825314
Metadatos adicionales
| Agradecimientos | The Directorate of Antarctic Affairs of the Ministry of Foreign Affairs of Peru provided the facilities for participation in the ORCA Cruise. The support and cooperation of the Commander of the BAP Carrasco, along with his officers and non-commissioned officers, were essential for the sample collection. The BAP Carrasco crew and the researchers from the second leg of the ANTARXXVII campaign (2020) played a key role in the collection of samples for this study. Financial and logistical contributions from BELSPO, VLIR-UOS, VUB, and the Royal Belgian Institute of Natural Sciences enabled participation in the campaign and the analysis of the data. INVEMAR’s financial support to Constanza Ricaurte-Villota was crucial. The collaboration of Isabelle Schön, Silvio Andrés Ordoñez, and Magnolia Murcia in logistics, fieldwork, and FP-XRF measurements was also invaluable. This dataset is part of the Refugia and Ecosystem Tolerance in the Southern Ocean (RECTO) project funded by Belgium Science Policy (BELSPO). This dataset is published as open data with technical support provided by SCAR Antarctic Biodiversity Portal (biodiversity.aq) (BELSPO project RT/23/ADVANCE). |
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| Propósito | This expedition had two main objectives: to provide data for two master’s thesis and to bring back samples that could be studied by other research groups in Belgium. The first research topic, led by L. Delhaye is entitled: "Spatial distribution and monitoring of heavy metal bioaccumulation in the Bransfield Strait, Antarctica". The desired samples for this topic weresurface sediments of each station associated with five individuals of Odontaster validus and five molluscs of one of the following species: Laternula elliptica, Nacella concinna or Aequiyoldia eightsii. The second master thesis is led by J. Engelbrecht and is entitled: "Community structure of benthic organisms in the Antarctic Peninsula". This topic required the sampling of benthos at a minimum of 12 stations. |
| Identificadores alternativos | https://ipt.biodiversity.aq/resource?r=antarxxvii-leg2 |