A New Species of Osedax (Siboglinidae: Annelida) From Colonization Experiments in the Arctic Deep Sea
Large parcels of organic matter in the deep sea, such as whale carcasses, harbor a very specialized fauna, most famously the bone-eating worms in the genus Osedax (Annelida, Siboglinidae). Although Osedax was first described only 15 years ago, there are already 26 described species from the Pacific,...
Published in: | Frontiers in Marine Science |
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Language: | English |
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Online Access: | https://hdl.handle.net/11250/2735854 https://doi.org/10.3389/fmars.2020.00443 |
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ftnorce:oai:norceresearch.brage.unit.no:11250/2735854 2023-05-15T14:57:42+02:00 A New Species of Osedax (Siboglinidae: Annelida) From Colonization Experiments in the Arctic Deep Sea Eilertsen, Mari Heggernes Dahlgren, Thomas Gunnar Rapp, Hans Tore 2020 application/pdf https://hdl.handle.net/11250/2735854 https://doi.org/10.3389/fmars.2020.00443 eng eng urn:issn:2296-7745 https://hdl.handle.net/11250/2735854 https://doi.org/10.3389/fmars.2020.00443 cristin:1823592 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no © 2020 Eilertsen, Dahlgren and Rapp CC-BY Frontiers in Marine Science Peer reviewed Journal article 2020 ftnorce https://doi.org/10.3389/fmars.2020.00443 2022-10-13T05:50:29Z Large parcels of organic matter in the deep sea, such as whale carcasses, harbor a very specialized fauna, most famously the bone-eating worms in the genus Osedax (Annelida, Siboglinidae). Although Osedax was first described only 15 years ago, there are already 26 described species from the Pacific, Atlantic, and Southern Oceans. The high discovery rate of new Osedax species indicates that there is still a lot of undescribed diversity. In this study we describe the most northerly species of Osedax to date, Osedax fenrisi sp. nov. from 73°N on the Arctic Mid-Ocean Ridge. We also present an updated molecular phylogeny of Osedax based on cytochrome oxidase subunit I and 18S rRNA, including all described species in the genus. The molecular results support that O. fenrisi sp. nov. is distinct from the previously known species of Osedax. Both morphological characters and the molecular phylogeny support the placement of O. fenrisi sp. nov. in clade V. The most striking morphological character shared with other described species in this clade (Osedax rubiplumus, Osedax roseus, and Osedax bryani) is the presence of long pinnules inserted on the outside of the palps. Nomenclatural act recorded in Zoobank. LSID: E55A5C87-0CB6-4146-B3D9-7E3B19B68628. publishedVersion Article in Journal/Newspaper Arctic NORCE vitenarkiv (Norwegian Research Centre) Arctic Pacific Frontiers in Marine Science 7 |
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Open Polar |
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NORCE vitenarkiv (Norwegian Research Centre) |
op_collection_id |
ftnorce |
language |
English |
description |
Large parcels of organic matter in the deep sea, such as whale carcasses, harbor a very specialized fauna, most famously the bone-eating worms in the genus Osedax (Annelida, Siboglinidae). Although Osedax was first described only 15 years ago, there are already 26 described species from the Pacific, Atlantic, and Southern Oceans. The high discovery rate of new Osedax species indicates that there is still a lot of undescribed diversity. In this study we describe the most northerly species of Osedax to date, Osedax fenrisi sp. nov. from 73°N on the Arctic Mid-Ocean Ridge. We also present an updated molecular phylogeny of Osedax based on cytochrome oxidase subunit I and 18S rRNA, including all described species in the genus. The molecular results support that O. fenrisi sp. nov. is distinct from the previously known species of Osedax. Both morphological characters and the molecular phylogeny support the placement of O. fenrisi sp. nov. in clade V. The most striking morphological character shared with other described species in this clade (Osedax rubiplumus, Osedax roseus, and Osedax bryani) is the presence of long pinnules inserted on the outside of the palps. Nomenclatural act recorded in Zoobank. LSID: E55A5C87-0CB6-4146-B3D9-7E3B19B68628. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Eilertsen, Mari Heggernes Dahlgren, Thomas Gunnar Rapp, Hans Tore |
spellingShingle |
Eilertsen, Mari Heggernes Dahlgren, Thomas Gunnar Rapp, Hans Tore A New Species of Osedax (Siboglinidae: Annelida) From Colonization Experiments in the Arctic Deep Sea |
author_facet |
Eilertsen, Mari Heggernes Dahlgren, Thomas Gunnar Rapp, Hans Tore |
author_sort |
Eilertsen, Mari Heggernes |
title |
A New Species of Osedax (Siboglinidae: Annelida) From Colonization Experiments in the Arctic Deep Sea |
title_short |
A New Species of Osedax (Siboglinidae: Annelida) From Colonization Experiments in the Arctic Deep Sea |
title_full |
A New Species of Osedax (Siboglinidae: Annelida) From Colonization Experiments in the Arctic Deep Sea |
title_fullStr |
A New Species of Osedax (Siboglinidae: Annelida) From Colonization Experiments in the Arctic Deep Sea |
title_full_unstemmed |
A New Species of Osedax (Siboglinidae: Annelida) From Colonization Experiments in the Arctic Deep Sea |
title_sort |
new species of osedax (siboglinidae: annelida) from colonization experiments in the arctic deep sea |
publishDate |
2020 |
url |
https://hdl.handle.net/11250/2735854 https://doi.org/10.3389/fmars.2020.00443 |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Frontiers in Marine Science |
op_relation |
urn:issn:2296-7745 https://hdl.handle.net/11250/2735854 https://doi.org/10.3389/fmars.2020.00443 cristin:1823592 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no © 2020 Eilertsen, Dahlgren and Rapp |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmars.2020.00443 |
container_title |
Frontiers in Marine Science |
container_volume |
7 |
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1766329831637647360 |