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dc.contributor.authorÅström, Emmelie
dc.contributor.authorOliver, Graham
dc.contributor.authorCarroll, Michael Leslie
dc.date.accessioned2018-05-28T07:58:28Z
dc.date.available2018-05-28T07:58:28Z
dc.date.issued2017-05-16
dc.description.abstractBivalves have been found in unique benthic assemblages associated with active methane seeps and mounds along the western and southern margins of the Svalbard shelf (75–79°N) at 350–380 m depth. Among the samples collected were a number of shells of Thyasiridae that are distinct from any species previously described. Here we describe one new genus Rhacothyas gen. nov. and two new species Thyasira capitanea sp. nov. and Rhacothyas kolgae sp. nov., including their distinguishing characteristics and the environmental setting where they were found. Thyasira capitanea sp. nov. is large compared with many other thyasirids, has an equilateral shell and demarcated zones on the median and anterior areas along with a distinct posterior sulcus. Rhacothyas kolgae sp. nov. is unique among other thyasirid genera and species regarding its characteristic outline, sunken lunule, lack of submarginal sulcus and wrinkled surface. Furthermore, we discuss their present occurrence in the context of the glaciomarine history of the Svalbard margin. We posit that these new species, after the deglaciation of the Barents Sea Ice Sheet, may have originated from other chemosynthetic or reducing environments along the Atlantic shelf margin or the southern Barents Sea shelf by following the net transport of the North Atlantic Current rather than having evolved in situ.en_US
dc.descriptionThis is an Accepted Manuscript of an article published by Taylor & Francis in Marine Biology Research on May 16th 2017, available online: <a href=https://doi.org/10.1080/17451000.2016.1272699> http://www.tandfonline.com/10.1080/17451000.2016.1272699 </a>en_US
dc.identifier.citationÅström, E.K.L., Oliver, P.G. & Carroll, M.L. (2017). A new genus and two new species of Thyasiridae associated with methane seeps off Svalbard, Arctic Ocean. Marine Biology Research, 13(4), 402-416.en_US
dc.identifier.cristinIDFRIDAID 1470902
dc.identifier.doi10.1080/17451000.2016.1272699
dc.identifier.issn1745-1000
dc.identifier.issn1745-1019
dc.identifier.urihttps://hdl.handle.net/10037/12794
dc.language.isoengen_US
dc.publisherTaylor & Francisen_US
dc.relation.journalMarine Biology Research
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/SFF/223259/Norway/Centre for Arctic Gas Hydrate, Environment and Climate/CAGE/en_US
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Geofag: 450en_US
dc.subjectVDP::Mathematics and natural science: 400::Geosciences: 450en_US
dc.subjectArcticen_US
dc.subjectchemosymbiosisen_US
dc.subjectcold seepen_US
dc.subjectnew speciesen_US
dc.subjectThyasiridaeen_US
dc.titleA new genus and two new species of Thyasiridae associated with methane seeps off Svalbard, Arctic Oceanen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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