Isopoda of the Southern Ocean: New Records from the Ross Sea Area by the National Antarctic Museum (MNA) Genoa Section

Nicholas Noli1, Matteo Cecchetto2, Alice Guzzi2, Marco Grillo1, Valentina Cometti2, Stefano Schiaparelli2, Yi-Ming Gan3

1 Department of Physical Sciences, Earth and Environment (DSFTA) - University of Siena, Siena, Italy | Italian National Antarctic Museum (MNA, section of Genoa), Genoa, Italy, , Italy; 2 Department of Earth, Environmental and Life Sciences (DISTAV) - University of Genoa, Genoa, Italy | Italian National Antarctic Museum (MNA, section of Genoa), Genoa, Italy, , Italy; 3 Royal Belgian Institute of Natural Sciences, , Belgium

Corresponding author(s): Nicholas Noli (n.noli@student.unisi.it)Matteo Cecchetto (matteocecchetto@gmail.com)Alice Guzzi (aliceguzzi@libero.it)Marco Grillo (grillomarco94@gmail.com)Valentina Cometti (valentinacometti@libero.it)Stefano Schiaparelli (stefano.schiaparelli@unige.it), Yi-Ming Gan (data-biodiversity-aq@naturalsciences.be)

Received {date}; Revised {date}; Accepted {date}; Published {date}

Citation: Combination of authors, year of data paper publication (in parentheses), Title, Journal Name, Volume, Issue number (in parentheses), and doi of the data paper.

Resource Citation

Noli N, Cecchetto M, Guzzi A, Grillo M, Cometti V, Schiaparelli S, Gan Y (2023). Isopoda of the Southern Ocean: New Records from the Ross Sea Area by the National Antarctic Museum (MNA) Genoa Section. Version 1.2. Italian National Antarctic Museum (MNA, Section of Genoa). Occurrence dataset. https://ipt.biodiversity.aq/resource?r=mna_isopoda&v=1.2

Abstract

Isopoda Latreille, 1816 is an order that consists of a vast number of taxa, living and thriving in land, sea, fresh- and groundwater. Isopods in the Southern Ocean are highly speciose and well-represented from the shelf to deep-sea zones. Southern Ocean isopod marine species and their biogeography, yet studied since the firsts Antarctic expeditions, are however poorly known. Regarding Ross Sea, isopod communities and assemblages are still less studied than the Weddell Sea ones. New biogeographical data regarding Ross Sea isopods are presented here, examining the National Antarctic Museum (MNA) Genoa section samples belonging to 15 Antarctic Expeditions.
A total of 279 MNA samples were identified, resulting in 53 accepted species distributed in 24 families and 48 genera. From this identification, 15 species are considered new records for the Ross Sea area. GBIF and OBIS (Ocean Biodiversity Information System) (https://obis.org) databases, and bibliographic research were used as validation to the eventually new records for the Ross Sea area.
This dataset is published by Italian National Antarctic Museum (MNA) under the license CC BY 4.0. Please follow the guidelines from the SCAR Data Policy (SCAR, 2022) when using the data. If you have any questions regarding this dataset, please contact us via the contact information provided in the metadata or via data-biodiversity-aq@naturalsciences.be. Issues with dataset can be reported at https://github.com/biodiversity-aq/data-publication/
The publication of this data paper was funded by the Belgian Science Policy Office (BELSPO, contract n°FR/36/AN1/AntaBIS) in the Framework of EU-Lifewatch as a contribution to the SCAR Antarctic biodiversity portal (biodiversity.aq).

Keywords: Occurrence, Specimen, SOUTHERN OCEAN, ROSS SEA, ISOPODA, NEW RECORDS

Data published through GBIF: https://ipt.biodiversity.aq/resource?r=mna_isopoda

Taxonomic coverage

General taxonomic coverage description: N/A
Taxonomic ranks
Kingdom: Animalia
Phylum: Arthropoda
Class: Malacostraca
Order: Isopoda
Family: Gnathiidae, Paramunnidae, Austrarcturellidae, Desmosomatidae, Santiidae, Anthuridae, Antarcturidae, Janiridae, Cirolanidae, Leptanthuridae, Munnidae, Aegidae, Serolidae

Spatial coverage

General spatial coverage: Geographic delimitation of this study is represented by the Southern Ocean. Ross Sea area is delimited by the Cape Adare -located in the northern Victoria Land- (West) to Cape Colbeck on Edward VII Peninsula (East); as northern delimitation an approximated point of the limit of the continental shelf is chosen, and southern limit of the marine shelf on the other side.
Coordinates: 77°25'1.2''S and 54°57'59.76''S Latitude; 176°36'16.88''W and 176°15'28.19''E Longitude 

Temporal coverage: January 23, 1995 - December 5, 2018

Methods

Method step description: 
- . 	All the samples have been sorted and retrieved from the MNA collection.
- . 	The samples have been recognized and classified to the lowest-possible taxonomic level using Leica MZ8 optical stereomicroscope.
- . 	R statistical computing software has been used in order to perform comparative analysis and retrieve new records via rgbif package (rgbif package version 3.7.5) (Chamberlain et al.,2023).
- . 	QGIS and Quantarctica (Matsuoka et al., 2021) has been used in order to produce maps and GIS-related biogeographical information.
Study extent description: This dataset describes the abundance and distribution of Isopoda of the  15 antarctic campaigns: PNRA Expedition Xth (1994/95), XIth (1995/96), XIIIth (1997/98), XIVth (1998/99), XVIIth (2001/02), XIXth (2003/04), XXVth (2009/10), XXVIIth (2011/12), XXVIIIth (2012/13), XXIXth (2013/14), XXXIIth (2016/17), XXXIVth (2018/19), and NSF (National Science Foundation) "Icefish04", and BAS (British Antarctic Survey) Expedition JR15005 "SO-AntEco" and JR18003 "ICEBERGS2". at Southern Ocean between 23 January 1995 and 05 December 2018.
Sampling description: Sampling methods in this dataset are diverse and belong to the different frameworks of the Antarctic Expedition cited. 65L Van Veen grab and triangular dredge have been used concerning PNRA Xth Expedition 1994/95 samples; 65L Van Veen grab concerning PNRA XI Expedition 1995/96 samples; Agassiz trawl (AGT) concerning PNRA XIIIth Expedition 1997/98 samples; Van Veen grab concerning PNRA XIVth Expedition 1998/99 and PNRA XIXth Expedition 2003/04 samples; Van Veen grab, a dredge and diving concerning PNRA XVIIth Expedition 2001/02 samples; diving and a dredge concerning PNRA XXVth Expedition 2009/10; a dredge and a gill net (GN) concerning PNRA XXVIIth Expedition 2011/12 samples; a dredge, gill net (GN), long line (LL)* and Small Hamburg Plankton Net (SHPN) concerning PNRA XXVIIIth Expedition 2012/13 samples;a dredge, trammel net (TN) and Multiple Net Tucker Trawl (TT) concerning PNRA XXIXth Expedition 20013/14 samples; box corer and multi corer concerning PNRA XXXIIth Expedition 2016/17 samples; diving concerning PNRA XXXIV Expedition 2018/19 samples; Rauschert dredge concerning BAS JR15005 "SO-AntEco" 2016 Expedition; Agassiz trawl (AGT) concerning BAS JR18003 "ICEBERGS2" 2018 Expedition.
Quality control description: All records were validated. Coordinates were plotted on map to verify the actual geographical location. All scientific names were checked for typo and matched to the species information backbone of Worlds Register of Marine Species (http://marinespecies.org/) and LSID were assigned to each taxa as scientificNameID. Event dates are compliant to ISO 8601 standard.

Datasets

Dataset description
Object name: Darwin Core Archive Isopoda of the Southern Ocean: New Records from the Ross Sea Area by the National Antarctic Museum (MNA) Genoa Section
Character encoding: UTF-8
Format name: Darwin Core Archive format
Format version: 1.0
Distribution: https://ipt.biodiversity.aq/archive.do?r=mna_isopoda
Publication date of data: 2023-04-27
Language: English
Licences of use: Creative Commons Attribution (CC-BY 4.0) License

Metadata language: English
Date of metadata creation: 2023-04-14
Hierarchy level: Dataset

References
Brandt, Angelika. 1990. Antarctic Valviferans (Crustacea, Isopoda, Valvifera): New Genera, New Species, and Rediscriptions. Brill Archive.
Castelló, José. 2004. “Two New Species of Paramunnidae (Crustacea, Isopoda, Asellota) from the South Shetland Islands.” Antarctic Science 16 (3): 239–52. https://doi.org/10.1017/S0954102004002093.
Chamberlain S, Barve V, Mcglinn D, Oldoni D, Desmet P, Geffert L, Ram K (2023). rgbif: Interface to the Global Biodiversity Information Facility API. R package version 3.7.6, https://CRAN.R-project.org/package=rgbif.
Doti, Brenda Lía, Madhumita Choudhury, and Angelika Brandt. 2009. “Holodentata Gen. Nov. (Isopoda: Asellota: Paramunnidae) with a Description of Two New Species: H. Caeca and H. Triangulata from the Southern Ocean.” Zootaxa 2096 (1): 395–412. https://doi.org/10.11646/zootaxa.2096.1.24
Just, Jean, and George D. F. Wilson. 2004. “Revision of the Paramunna Complex (Isopoda : Asellota : Paramunnidae).” Invertebrate Systematics 18 (4): 377. https://doi.org/10.1071/IS03027
Just, Jean, and George D.F. Wilson. 2021. “Redescriptions and New Species in the ‘Austrosignum–Munnogonium’ Complex Sensu Just &amp; Wilson (2007), Mainly from the Southern Hemisphere (Crustacea: Isopoda: Paramunnidae).” Zootaxa 4952 (3): 401–47. https://doi.org/10.11646/zootaxa.4952.3.1
Kussakin, Oleg G, and Galina S Vasina. 1980. “ADDITIONS TO THE MARINE ISOPODA AND GNATHIIDA OF KERGUELEN ISLANDS (SOUTHERN INDIAN OCEAN),” 15.
Matsuoka, K., Skoglund, A., & Roth, G. (2018). Quantarctica [Data set]. Norwegian Polar Institute. https://doi.org/10.21334/npolar.2018.8516e961
QGIS.org, 2022. QGIS Geographic Information System. QGIS Association. http://www.qgis.org
The Scientific Committee on Antarctic Research. (2023). SCAR Report 42 - September 2022 - SCAR Data Policy (2022). Zenodo. https://doi.org/10.5281/zenodo.7825314