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Information regarding the molluscs in this dataset is based on the epibenthic sledge (EBS) samples collected during the cruise BIOPEARL II / JR179 RRS James Clark Ross in the austral summer 2008. A total of 34 epibenthic sledge deployments have been performed at five locations in the Amundsen Sea at Pine Island Bay (PIB) and the Amundsen Sea Embayment (ASE) at depths ranging from 476 to 3501m. This presents a unique and important collection for the Antarctic benthic biodiversity assessment as the Amundsen Sea remains one of the least known regions in Antarctica. Indeed the work presented in this dataset is based on the first benthic samples collected with an EBS in the Amundsen Sea. However we assume that the data represented are an underestimation of the real fauna present in the Amundsen Sea. In total 9261 specimens belonging to 6 classes 55 families and 97 morphospecies were collected. The species richness per station varied between 6 and 43. Gastropoda were most species rich (50 species) followed by Bivalvia (37), Aplacophora (5), Scaphopoda (3) and one from each of Polyplacophora and Monoplacophora.


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Moreau C, Linse K, Griffiths HJ, Barnes DKA, Kaiser S, Glover A, Sands C, Strugnell J, Enderlein P, Geissler P (2013). Amundsen Sea Mollusca from the BIOPEARL II expedition. 692 records, published online,



此資料的發布者及權利單位為 Antarctic Biodiversity Information Facility (ANTABIF)。 This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.


此資源已向GBIF註冊,並指定以下之GBIF UUID: 89df1c06-1f0f-432a-bae7-c495837317c6。  Antarctic Biodiversity Information Facility (ANTABIF) 發佈此資源,並經由Scientific Committee on Antarctic Research同意向GBIF註冊成為資料發佈者。


Mollusca; Antarctica; Amundsen Sea; Bivalvia; Gastropoda; Scaphopoda; Aplacophora; Monoplacophora; Polyplacophora; BIOPEARL II; Occurrence


Camille Moreau
  • 元數據提供者
  • 作者
  • 出處
  • 連絡人
Marine Benthos Technician
British Antarctic Survey (BAS)
High Cross Madingley Road
CB3 0ET Cambridge
Katrin Linse
  • 作者
British Antarctic Survey (BAS)
High Cross Madingley Road
CB3 0ET Cambridge
Huw Griffiths
  • 作者
British Antarctic Survey (BAS)
High Cross Madingley Road
CB3 0ET Cambridge
David Barnes
British Antarctic Survey (BAS)
High Cross Madingley Road
CB3 0ET Cambridge
Stefanie Kaiser
Biocentre Grindel and Zoological Museum
Martin-Luther-King-Platz 3, 20146 Hamburg
Adrian Glover
Natural History Museum
Chester Sands
British Antarctic Survey (BAS)
High Cross Madingley Road
CB3 0ET Cambridge
Jan Strugnell
La Trobe Institute for Molecular Science
Peter Enderlein
British Antarctic Survey (BAS)
High Cross Madingley Road
CB3 0ET Cambridge
Paul Geissler
British Antarctic Survey (BAS)
CB3 0ET Cambridge


Amundsen Sea, Antarctica

界定座標範圍 緯度南界 經度西界 [-74.49, -110.09], 緯度北界 經度東界 [-70.02, -104.34]


The present dataset focus on six molluscs classes (Mollusca: Aplacophora, Monoplacophora, Polyplacophora, Gastropoda, Bivalvia & Scaphopoda). It includes respectively for each class: Aplacophora

Species Aplacophora sp1, Aplacophora sp2, Aplacophora sp3, Aplacophora sp4, Aplacophora sp5


Family Leptochitonidae
Genus Leptochiton
Species Leptochiton sp


Family Micropilinidae
Genus Micropilina
Species Micropilina sp


Family Scissurellidae, Ataphridae, Mangeliidae, Capulidae, Calliotropidae, Seguenzioidea, Turbinidae, Turridae, Eulimidae, Limacinidae, Eatoniellidae, Cancellarioidea, Naticidae, Rissoidae, Diaphinidae, Fissurellidae, Raphitomidae, Cylichnidae, Lepetidae, Orbitestellidae, Buccinidae, Mathildidae, Newtoniellidae, Marginellidae
Genus Anatoma, Trochaclis, Lorabela, Belalora, Torellia, Capulus, Calliotropis, Brookula, Lissotesta, Liotella, Cirsonella, Balcis, Onoba, Hemiaclis, Limacina, Eatoniella, Cancellaridae, Falsilunatia, Sinuber, Powellisetia, Rissoid, Toledonia, Fissurellidae, Cornisepta, Zeidora, Pleurotomella, Cylichna, Iothia, Microdiscula, Pareuthria, Turritellopsis, Cerithiella, Marginella
Species Anatoma euglypta, Trochaclis antarctica, Lorabela pelseneeri, Belalora cf striatula, Torellia insignis, Capulus sp, Calliotropis pelseneeri, Brookula cf charleenae, Brookula sp, Lissotesta sp, Liotella sp, Liotella cf endeavourensis, Cirsonella extrema, Turbinid sp, Turrid sp 1, Turrid sp 2, Balcis sp, Onoba cf gelida, Hemiaclis incolorata, Limacina helicina, Eatoniella cf kerguelenensis regularis, Cancellaridae sp, Falsilunatia sp, Sinuber multistriatum, Powellisetia cf deserta, Rissoidae sp, Toledonia sp 1, Toledonia sp 2, Toledonia cf elata, Fissurellidae sp 1, Fisserulidae sp 2, Cornisepta antarctica, Zeidora antarctica, Pleurotomella cf simillima, Cylichna sp, Iothia sp, Microdiscula sp, Pareuthria cf innocens, Turritellopsis gratissima, Cerithiella cf lineata, Cerithiella cf erecta, Fissurelidae sp 2, Marginella ealesae


Family Nuculanidae, Nuculidae, Yoldiidae, Limopsidae, Philobryidae, Mytilidae, Limidae, Pectinidae, Propeamussiidae, Thyasiridae, Motacutidae, Lasaeidae, Cyamiidae, Carditidae, Thraciidae, Cuspidariidae, Lyonsiidae, Poromyidae, Neoleptonidae, Siliculidae, Arcidae, Vesicomyidae, Tindariidae, Bathyspinulidae
Genus Propeleda, Ennucula, Yoldiella, Limopsis, Philobrya, Adacnarca, Dacrydium, Limatula, Adamussium, Hyalopecten, Cyclochlamys, Thyasira, Mysella, Waldo, Cyamiocardium, Cyclocardia, Thracia, Cuspidaria, Myonera, Lyonsia, Poromya, Neolepton, Silicula, Bathyarca, Vesicomya, Tindaria, Bathyspinula, Cyclopecten
Species Propeleda longicaudata, Ennucula sp, Yoldiella ecaudata, Yoldiella sabrina, Yoldiella valettei, Yoldiella cf profundorum, Yoldiella oblonga, Yoldiella sp, Limopsis longipilosa, Limopsis knudseni, Philobrya sublaevis, Philobrya quadrata, Adacnarca nitens, Dacrydium albidum, Limatula Limatula sp, Limatula Antarctolima sp, Adamussium colbecki, Hyalopecten pudicus, Cyclopecten pteriola, Cyclochlamys gaussiana, Thyasira sp, Mysella antarctica, Waldo sp, Cyamiocardium denticulatum, Cyclocardia astartoides, Thracia meridionalis, Cuspidaria infelix, Cuspidaria minima, Myonera fragilissima, Lyonsia arcaeformis, Poromya antarctica, Neolepton sp, Silicula rouchi, Bathyarca sinuata, Vesicomya sirenkoi, Tindaria sp, Bathyspinula sp


Family Dentaliidae, Pulsellidae, Gadilidae
Genus Dentalium, Striopulsellum, Cadulus
Species Dentalium majorinum, Striopulsellum sp, Cadulus sp


起始日期 / 結束日期 2008-02-18 / 2008-04-11



經費來源 This study is part of the British Antarctic Survey Polar Science for Planet Earth Programme funded by the Natural Environment Research Council.
研究區域描述 The study area of this dataset was set in the eastern Amundsen Sea and focused on the continental shelf, upper slope and over-deepened shelf basins of the Amundsen Sea Embayment (ASE) and Pine Island Bay (PIB). This dataset presents species occurrences and species richness of the individual epibenthic sledge (EBS) deployments. PIB appears to be the third largest drainage outlet of the West Antarctic Ice Sheet (Lowe and Anderson, 2002). This area was chosen for the BIOPEARL II cruise as it has never been subject to benthic sampling before. Furthermore it shows a unique oceanography over its continental shelf defined by the Antarctic Circumpolar Deep Water (Jenkins et al., 2004). The presence of deep basins and troughs allows the trapping of warm Circumpolar deep Water (3.5°C above the in situ freezing point) on the continental shelf of the ASE and PIB (Jacobs et al., 2011). Vaughan (2008) assumed that these particularly warm waters are one of the reasons of the high melting rate reported at the base of the floating ice shelf in these regions. The seabed of the ASE, which is of particular interest in this benthic work, presents the marks of historic, glaciations and deglaciations, together with icebergs scouring and melt-water channels (Dowdeswell et al., 2006; Nitsche et al., 2007; Larter et al., 2009; Noormets et al., 2009). One of the other characteristics of the area is the perennial sea ice cover (Graham et al., 2010).
研究設計描述 The Amundsen Sea is a very under sampled area on the Antarctic continental shelf, according to a recent gap analysis carried out by Griffiths et al. (2011). BIOPEARL (Biodiversity dynamics : phylogeography, evolution and radiation of life in Antarctica), a core project at the British Antarctic Survey, studied the southern Bellingshausen and eastern Amundsen seas to assess the biodiversity at local and regional scales (comparable to the BIOPEARL 2006 cruise to the Scotia Sea) and investigate the phylogenetic relationships of selected marine invertebrate taxa and their biogeography in reference to the climatological, oceanographical and geological history of the Bellingshausen/Amundsen Seas. The results are used to determine of the role of Antarctica and extreme environments in general in evolutionary innovation and generation of global biodiversity. The species presence data are added to SOMBASE (Southern Ocean Mollusc Database SOMBASE generated initial core data system upon which SCAR’s Marine Biodiversity Information Network (SCAR-MarBIN) was built. As SCAR-MarBIN is the Antarctic Node of the international OBIS network, the SOMBASE data system was designed to comply with the Darwin Core standards. Regarding the dataset, the existing Data Toolkit from SCARMarBIN was used (, following the OBIS schema ( The dataset was uploaded in the ANTOBIS database (the geospatial component of SCAR-MarBIN), and the taxonomy was matched against the Register of Antarctic Marine Species, using the Taxon Match tool ( The dataset meets the Darwin Core requirements and was designed around this data schema.


Camille Moreau
  • 作者


This dataset presents 34 EBS deployments: 21 of which were performed at a depth of 500m at four different sites (BIO3-1, BIO4-3, BIO5-3 and BIO 6-3) , six at a 1000m depth in three areas (BIO4-2, BIO5-2 and BIO6-2), five at a depth of 1500m at three different sites (BIO4-1, BIO5-1 and BIO6-1), and two replicates at site BIO8- 3500 in 3500m depth. For three of the five locations, sites were positioned along vertical transects sampling at 500m, 1000m and 1500m with repeat deployments of the EBS. The sites BIO4-1, BIO4-2 and BIO4-3 and BIO6-1, BIO6-2 and BIO6-3 were situated in the same local area; while the sites BIO5-1, BIO5-2 and BIO5-3 were dispersed over a wider area because of ice cover. The EBS consist of on an epi-(below) and a supra-(above) net. Each of these nets has a mesh size of 500μm and an opening of 100x33cm. The cod end of both nets is equipped with net-buckets containing a 300μm mesh window (Brenke, 2005). The EBS was trawled for 10 minutes on the sea bed at a 1 knot speed for deployments in 500m to 1500m and for 20 min in 3500m. Following Brenke (2005) that epi-and supra-nets are collecting the same fauna, these were pooled and treated as a single sample.Following Brenke ( 2005) that epi-and supra-nets are collecting the same fauna, these were pooled and treated as a single sample.

研究範圍 Five locations in the Pine Island Bay (PIB) and Amundsen Sea Embayment (ASE) at different depths ranging from 476 to 3501m have been sampled using an epibenthic sledge (EBS). Most deployments were made along depth transects from shallow to overdeepened continental shelf and to deeper slope (Figure 1 and 2). At three of the five locations samples were taken at ~500m, ~1000m and ~ 1500m depths, due to the particular geomorphology (presence of deep troughs close to the continent) of the ASE continental plateau. At each site, replicates (individual stations) were taken to assess habitat homogeneity and their number depended on water depth; three to six replicates were taken at 500m and two at 1000m, 1500m and 3500m depth. The BIOPEARL II cruise report is available from the British Oceanographic Data Centre (
品質控管 A species name was given to each specimen when it was possible. Individuals not corresponding to described species have been included in the analyses with the family or genus name and a letter or numerical code (e.g. Turbinidae sp.), however they represent a single morphospecies. For these specimens, further morphological and genetic analyses are necessary to give them a species name but they can be included in this dataset as different species. Finally, specimens too badly damaged for species identification have not been taken in account here. This dataset presents species occurrences and species richness of the individual EBS deployments.


  1. - Epibenthic sledge sampling in the Amundsen Sea - Once on the deck, the content of the samplers from the first deployment was immediately fixed in 96% undenaturated and pre-cooled (at -20°C) ethanol (Linse, 2008) and kept for a minimum of 48 hours in a -20°C freezer and the samplers from the second deployment were fixed in 4 % buffered formalin. If six EBS deployments were carried out at a station, four were fixed in ethanol and two in formaldehyde. Afterwards, these samples were washed in cold sea water and transferred to 80 % ethanol. The treatment in formalin allows cytological studies. - The taxonomic identification was performed in the British Antarctic Survey laboratory using a stereomicroscope.


蒐藏名稱 BIOPEARL II EBS Molluscs
蒐藏編號 Moreau/Linse
上層採集品識別碼 British Antarctic Survey
標本保存方法 Alcohol


  1. Brenke N (2005) An epibenthic sledge for operations on marine soft bottom and bedrock. J Mar Technol Soc 39(2):10–19
  2. Dowdeswell JA, Evans J, Cofaigh, Anderson JB (2006), Morphology and sedimentary processes on the continental slope off Pine Island Bay, Amundsen Sea, West Antarctica. Geol Soc Am Bull 118: 606-619
  3. Graham AGC, Larter RD, Gohl K, Dowdeswell JA, Hillenbrand C-D, Smith JA, Evans J, Kuhn G (2010) Flow and retreat of the Late Quaternary Pine Island-Thwaites palaeo-ice stream, West Antarctica, J Geophys Res 115.
  4. Jacobs SS, Jenkins A, Giulivi CF, Dutrieux P (2011) Stronger ocean circulation and increased melting under Pine Island Glacier ice shelf. Nature Geosci 4:519–523.
  5. Jenkins A, Hayes D, Brandon M, Pozzi-Walker Z, Hardy S, Banks C (2004) Oceanographic Observations at the Amundsen Sea Shelf Break. FRISP Report No 15
  6. Larter RD, Graham AGC, Gohl K, Kuhn G, Hillenbrand C-D, Smith JA, Deen TJ, Livermore RA, Schenke H-W (2009) Subglacial bedforms reveal complex basal regime in a zone of paleo-ice stream convergence, Amundsen Sea Embayment, West Antarctica. Geology 37:411-414
  7. Lowe AL, Anderson JB (2002) Reconstruction of the West Antarctic ice sheet in Pine Island Bay during the Last Glacial maximum and its subsequent retreat history. Quat Sci Revs 21:1879-1897
  8. Nitsche FO, Jacobs SS, Larter RD, Gohl K (2007) Bathymetry of the Amundsen Sea continental shelf: Implications for, geology, oceanography and glaciology. Geochem Geophys Geosys 8: Q10009.
  9. Noormets R, Dowdeswell JA, Larter RA, Cofaigh C Ó, Evans J (2009) Morphology of the upper continental slope in the Amundsen and Bellingshausen seas – implications for sedimentary processes at the shelf edge of West Antarctica. Mar Geol 258:100-114
  10. Vaughan DG (2008) West Antarctic Ice Sheet collapse – the fall and rise of a paradigm. Clim Change 91: 65-79
  11. Linse K, Walker LJ , Barnes DKA (2008) Biodiversity of echinoids and their epibionts around the Scotia Arc, Antarctica. Antarctic Science, 20, pp 227–244. doi: 10.1017/S0954102008001181


marine, harvested by iOBIS

替代的識別碼 89df1c06-1f0f-432a-bae7-c495837317c6