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dc.contributor.authorKongsrud, Jon Anders
dc.contributor.authorEilertsen, Mari Heggernes
dc.contributor.authorAlvestad, Tom
dc.contributor.authorKongshavn, Katrine
dc.contributor.authorRapp, Hans Tore
dc.date.accessioned2017-08-08T13:04:40Z
dc.date.available2017-08-08T13:04:40Z
dc.date.issued2016-03
dc.PublishedKongsrud JA, Eilertsen MH, Alvestad T, Kongshavn K, Rapp HT. New species of Ampharetidae (Annelida: Polychaeta) from the Arctic Loki Castle vent field. Deep-sea research. Part II, Topical studies in oceanography. 2016;137:232-245eng
dc.identifier.issn0967-0645
dc.identifier.urihttps://hdl.handle.net/1956/16250
dc.description.abstractAmpharetid polychaetes adapted to live in chemosynthetic environments are well known from the deep Pacific and Atlantic Oceans, but to date no such species have been reported from the Arctic Ocean. Here, we describe two new species, Paramytha schanderi gen. et sp. nov. and Pavelius smileyi sp. nov., from the Arctic Loki’s Castle vent field on the Knipovich Ridge north–east of the island of Jan Mayen. The new species are both tube-builders, and are found in a sedimentary area at the NE flank of the vent field, characterized by low-temperature venting and barite chimneys. The new genus, Paramytha, is characterized by a prostomium without lobes or glandular ridges, smooth buccal tentacles, four pairs of cirriform branchiae arranged as 2+1+1 without median gap dorsally on segments II–IV, absence of chaetae (paleae) on segment II, and absence of modified segments. P. smileyi sp. nov. is placed in the previously monotypic genus Pavelius, primarily based on the presence of a rounded prostomium without lobes and four pairs of branchiae arranged in a single transverse row without median gap dorsally on segment III. Pavelius smileyi sp. nov. differs from the type species, Pavelius uschakovi, in the number of thoracic and abdominal chaetigers, and the absence of chaetae (paleae) on segment II. The phylogenetic position of the two new species from Loki’s Castle is further explored by use of molecular data. New sequences of mitochondrial (16S rDNA and cytochrome c oxidase subunit 1, COI) and nuclear (18S rDNA) markers have been produced for both species from Loki’s Castle, as well as for specimens identified as Paramytha sp. from Setùbal Canyon off Portugal, and for the following species: Pavelius uschakovi, Grassleia cf. hydrothermalis, Sosane wireni, Amphicteis ninonae and Samythella neglecta. Results from phylogenetic analysis, including 22 species and 12 genera of Ampharetidae, recovered Paramytha gen. nov. as monophyletic with maximum support, and a close relationship between the genera Pavelius and Grassleia which together form a well supported monophyletic clade.en_US
dc.language.isoengeng
dc.publisherElseviereng
dc.relation.ispartof<a href="http://hdl.handle.net/1956/17715" target="blank"> Evolutionary history, connectivity and habitat-use of annelids from deep-sea chemosynthesis-based ecosystems, with an emphasis on the Arctic mid-Ocean Ridge and the Nordic Seas</a>
dc.rightsAttribution CC BYeng
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/eng
dc.subjectVent faunaeng
dc.subjectNorwegian Seaeng
dc.subjectArctic Mid Ocean Ridgeeng
dc.subjectBlack smokerseng
dc.subjectMolecular phylogenyeng
dc.subjectParamythaeng
dc.subjectnew genuseng
dc.subjectPaveliuseng
dc.titleNew species of Ampharetidae (Annelida: Polychaeta) from the Arctic Loki Castle vent fieldeng
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.date.updated2017-05-09T12:21:20Z
dc.description.versionpublishedVersion
dc.rights.holderCopyright 2016 The Author(s)eng
dc.identifier.doihttps://doi.org/10.1016/j.dsr2.2016.08.015
dc.identifier.cristin1394365
dc.source.journalDeep-sea research. Part II, Topical studies in oceanography
dc.relation.projectArtsdatabanken: 14-14, 70184209
dc.relation.projectNorges forskningsråd: 226134/F50
dc.relation.projectNorges forskningsråd: 179560
dc.relation.projectArtsdatabanken: 55-12/70184227
dc.relation.projectHavforskningsinstituttet: Ingen
dc.relation.projectNorges teknisk-naturvitenskapelige universitet: Ingen
dc.relation.projectUniversitetet i Bergen: Ingen


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