Checklist of organisms (“swimmers”) collected by Sediment Trap on Mooring B (Ross Sea shelf, Joides Basin, Antarctica) in years 1995-1996, 2004-2005 and 2014-2016

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 905 enregistrements.

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:

Grillo M, Linciano M, Balan M, Guzzi A, Noli N, Cometti V, Langone L, Giordano P, Schiaparelli S, Gan Y (2026). Checklist of organisms (“swimmers”) collected by Sediment Trap on Mooring B (Ross Sea shelf, Joides Basin, Antarctica) in years 1995-1996, 2004-2005 and 2014-2016. Version 1.3. Italian National Antarctic Museum (MNA, Section of Genoa). Occurrence dataset. https://ipt.biodiversity.aq/resource?r=mnait_sediment_trap_mooring_b&v=1.3

Droits

Les chercheurs doivent respecter la déclaration de droits suivante:

L’éditeur et détenteur des droits de cette ressource est Italian National Antarctic Museum (MNA, Section of Genoa). 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 : bf7857e0-0f34-47b0-828f-2011adddcbd6.  Italian National Antarctic Museum (MNA, Section of Genoa) publie cette ressource, et est enregistré dans le GBIF comme éditeur de données avec l'approbation du Scientific Committee on Antarctic Research.

Mots-clé

Occurrence; Specimen; ANTARCTIC ZOOPLANKTON; TIME-SERIES ANALYSIS; ANTARCTIC BIODIVERSITY; PELAGIC COMMUNITY

Contacts

Couverture géographique

The sediment traps, connected to the Mooring B (Joides Basin, Ross Sea), is located at a depth ranges of 470 - 530 m.

Couverture taxonomique

Pas de description disponible

Couverture temporelle

Données sur le projet

The Italian project “Biogenic Sedimentation” aims at investigating the biogeochemical processes that regulate the production, transfer, and sedimentation of organic matter in the Southern Ocean, with particular focus on the Ross Sea. “Biogenic Sedimentation” is devoted to understanding how surface biological productivity translates into particle fluxes toward the seafloor, and to what extent this process contributes to the natural sequestration of atmospheric carbon, the so-called “biological carbon pump.” The research approach combines the use of sediment traps, detailed analyses of biogenic material, and assessments of seasonal and interannual variability of export fluxes, integrating oceanographic observations with remote sensing data. This strategy enables the quantification of carbon and nutrient export rates and supports the evaluation of the role of the Southern Ocean in the global CO₂ budget.

Les personnes impliquées dans le projet:

Méthodes d'échantillonnage

Samples were collected in the Joides Basin (Ross Sea, Antarctica) at Mooring B, which was equipped with an automated sediment trap deployed at different depths depending on the sampling year. The seafloor at the site lies at about 560 m depth. The trap was designed to collect sinking particulate matter during the entire deployment period. This enabled the recovery of biological material descending through the water column. Sampling activities were carried out during six Italian Antarctic Expeditions, corresponding to the periods 1994–1995, 2004–2005, and 2014–2016. Each series covered two consecutive expeditions: one for deployment and the following one for recovery. During 1994–1995 the trap was positioned at 530 m depth; during 2004–2005, at 515 m; and during 2014–2016, at 470 m. All deployments took place within the Ross Sea Marine Protected Area, specifically, within the General Protection Zone (RS-GPZi sector). In the 1995–1996 series, a McLane Parflux Mark 7G-21 cups trap was used. This model featured 21 collection cups and a 0.5 m² collection area. In the subsequent deployments (2004–2005 and 2014–2016), a McLane 78HW-13 sediment trap was used, also with a 0.5 m² collection area but fitted with 13 cups. All collection cups were pre-filled with a buffered 5% formaldehyde solution to ensure optimal preservation of the organic matter. The rotation interval of the cups ranged from 7 days to 3 months. Further technical details are available in Langone et al. (2000; 2003).

Description des étapes de la méthode:

1. Swimmers were manually separated from passive sinking particles under a ZEISS Discovery V8 stereomicroscope at CNR-ISP (Bologna, Italy) following Chiarini et al. ( 2013). Samples were initially stored at +4 °C in 5% formaldehyde, then transferred to 96% ethanol and sent to MNA (Genoa, Italy), where unsorted swimmers were kept at -20 °C until analysis. Specimens were subsequently split, sorted, identified, and counted, then preserved in 96% ethanol or mounted on slides and permanently deposited in the MNA biological collection.
2. The collected swimmers were counted and the taxonomic investigation was performed to the lowest possible level and based upon historic and recent bibliography (Boxshall e Halsey 2004; Bonello et al. 2020). The online portal World Registry of Marine Species (WoRMS), Banyuls sur Mer marine Copepoda database (Razouls et al. 2022); https://copepodes.obs-banyuls.fr) was used to confirm acceptance of species names. When identification was inconclusive, only genus or family names were assigned.
3. The original unsorted swimmer matrix is stored in 96% ethanol, and also at -20°C. The swimmer specimens, splitted, sorted and identified, are in 96% ethanol or fixed on a slide and permanently deposited in the biological collection of the MNA.

Citations bibliographiques

1. Bonello, Guido, Marco Grillo, Matteo Cecchetto, et al. 2020. «Distributional records of Ross Sea (Antarctica) planktic Copepoda from bibliographic data and samples curated at the Italian National Antarctic Museum (MNA): checklist of species collected in the Ross Sea sector from 1987 to 1995». ZooKeys 969: 1–22. https://doi.org/10.3897/zookeys.969.52334
2. Boxshall, Geoffrey Allan, e Sheila H. Halsey. 2004. An introduction to copepod diversity. I. Ray Society.
3. Chiarini, Francesca, Lucilla Capotondi, Robert B. Dunbar, et al. 2013. «A revised sediment trap splitting procedure for samples collected in the Antarctic sea». Methods in Oceanography 8: 13–22.
4. Ivanenko, Viatcheslav N., Paulo HC Corgosinho, Frank Ferrari, Pierre-Marie Sarradin, e Jozee Sarrazin. 2012. «Microhabitat distribution of Smacigastes micheli (Copepoda: Harpacticoida: Tegastidae) from deep-sea hydrothermal vents at the Mid-Atlantic Ridge, 37° N (Lucky Strike), with a morphological description of its nauplius». Marine Ecology 33 (2): 246–56.
5. Langone, L., R. B. Dunbar, D. A. Mucciarone, M. Ravaioli, R. Meloni, e C. A. Nittrouer. 2003. «Rapid sinking of biogenic material during the late austral summer in the Ross Sea, Antarctica». Biogeochemistry of the Ross sea 78: 221–33. https://doi.org/10.1029/078ARS14.
6. Langone, Leonardo, Mauro Frignani, Mariangela Ravaioli, e Cristina Bianchi. 2000. Particle Fluxes and Biogeochemical Processes in an Area Influenced by Seasonal Retreat of the Ice Margin Žnorthwestern Ross Sea, Antarctica/.
7. Michels, Jan, e M. Büntzow. 2010. «Assessment of Congo red as a fluorescence marker for the exoskeleton of small crustaceans and the cuticle of polychaetes». Journal of Microscopy 238 (2): 95–101.
8. Razouls, S., N Desreumaux, J Kouwenberg, e F de Bovée. 2022. Diversity and geographic distribution of marine planktonic copepods. https://doi.org/10.13140/RG.2.1.2077.4241.

Métadonnées additionnelles