New species of Ampharetidae (Annelida: Polychaeta) from the Arctic Loki Castle vent field
Ampharetid 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.,...
Published in: | Deep Sea Research Part II: Topical Studies in Oceanography |
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Online Access: | https://hdl.handle.net/1956/16250 https://doi.org/10.1016/j.dsr2.2016.08.015 |
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ftunivbergen:oai:bora.uib.no:1956/16250 2023-05-15T14:27:18+02:00 New species of Ampharetidae (Annelida: Polychaeta) from the Arctic Loki Castle vent field Kongsrud, Jon Anders Eilertsen, Mari Heggernes Alvestad, Tom Kongshavn, Katrine Rapp, Hans Tore 2017-05-09T12:21:20Z application/pdf https://hdl.handle.net/1956/16250 https://doi.org/10.1016/j.dsr2.2016.08.015 eng eng Elsevier 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 Artsdatabanken: 14-14, 70184209 Norges forskningsråd: 226134/F50 Norges forskningsråd: 179560 Artsdatabanken: 55-12/70184227 Havforskningsinstituttet: Ingen Norges teknisk-naturvitenskapelige universitet: Ingen Universitetet i Bergen: Ingen urn:issn:0967-0645 https://hdl.handle.net/1956/16250 https://doi.org/10.1016/j.dsr2.2016.08.015 cristin:1394365 Attribution CC BY http://creativecommons.org/licenses/by/4.0/ Copyright 2016 The Author(s) Deep-sea research. Part II, Topical studies in oceanography Vent fauna Norwegian Sea Arctic Mid Ocean Ridge Black smokers Molecular phylogeny Paramytha new genus Pavelius Peer reviewed Journal article 2017 ftunivbergen https://doi.org/10.1016/j.dsr2.2016.08.015 2023-03-14T17:41:25Z Ampharetid 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 ... Article in Journal/Newspaper Arctic Arctic Arctic Ocean Jan Mayen Norwegian Sea University of Bergen: Bergen Open Research Archive (BORA-UiB) Arctic Arctic Ocean Jan Mayen Knipovich Ridge ENVELOPE(7.074,7.074,75.712,75.712) Norwegian Sea Pacific Deep Sea Research Part II: Topical Studies in Oceanography 137 232 245 |
institution |
Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
op_collection_id |
ftunivbergen |
language |
English |
topic |
Vent fauna Norwegian Sea Arctic Mid Ocean Ridge Black smokers Molecular phylogeny Paramytha new genus Pavelius |
spellingShingle |
Vent fauna Norwegian Sea Arctic Mid Ocean Ridge Black smokers Molecular phylogeny Paramytha new genus Pavelius Kongsrud, Jon Anders Eilertsen, Mari Heggernes Alvestad, Tom Kongshavn, Katrine Rapp, Hans Tore New species of Ampharetidae (Annelida: Polychaeta) from the Arctic Loki Castle vent field |
topic_facet |
Vent fauna Norwegian Sea Arctic Mid Ocean Ridge Black smokers Molecular phylogeny Paramytha new genus Pavelius |
description |
Ampharetid 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 ... |
format |
Article in Journal/Newspaper |
author |
Kongsrud, Jon Anders Eilertsen, Mari Heggernes Alvestad, Tom Kongshavn, Katrine Rapp, Hans Tore |
author_facet |
Kongsrud, Jon Anders Eilertsen, Mari Heggernes Alvestad, Tom Kongshavn, Katrine Rapp, Hans Tore |
author_sort |
Kongsrud, Jon Anders |
title |
New species of Ampharetidae (Annelida: Polychaeta) from the Arctic Loki Castle vent field |
title_short |
New species of Ampharetidae (Annelida: Polychaeta) from the Arctic Loki Castle vent field |
title_full |
New species of Ampharetidae (Annelida: Polychaeta) from the Arctic Loki Castle vent field |
title_fullStr |
New species of Ampharetidae (Annelida: Polychaeta) from the Arctic Loki Castle vent field |
title_full_unstemmed |
New species of Ampharetidae (Annelida: Polychaeta) from the Arctic Loki Castle vent field |
title_sort |
new species of ampharetidae (annelida: polychaeta) from the arctic loki castle vent field |
publisher |
Elsevier |
publishDate |
2017 |
url |
https://hdl.handle.net/1956/16250 https://doi.org/10.1016/j.dsr2.2016.08.015 |
long_lat |
ENVELOPE(7.074,7.074,75.712,75.712) |
geographic |
Arctic Arctic Ocean Jan Mayen Knipovich Ridge Norwegian Sea Pacific |
geographic_facet |
Arctic Arctic Ocean Jan Mayen Knipovich Ridge Norwegian Sea Pacific |
genre |
Arctic Arctic Arctic Ocean Jan Mayen Norwegian Sea |
genre_facet |
Arctic Arctic Arctic Ocean Jan Mayen Norwegian Sea |
op_source |
Deep-sea research. Part II, Topical studies in oceanography |
op_relation |
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 Artsdatabanken: 14-14, 70184209 Norges forskningsråd: 226134/F50 Norges forskningsråd: 179560 Artsdatabanken: 55-12/70184227 Havforskningsinstituttet: Ingen Norges teknisk-naturvitenskapelige universitet: Ingen Universitetet i Bergen: Ingen urn:issn:0967-0645 https://hdl.handle.net/1956/16250 https://doi.org/10.1016/j.dsr2.2016.08.015 cristin:1394365 |
op_rights |
Attribution CC BY http://creativecommons.org/licenses/by/4.0/ Copyright 2016 The Author(s) |
op_doi |
https://doi.org/10.1016/j.dsr2.2016.08.015 |
container_title |
Deep Sea Research Part II: Topical Studies in Oceanography |
container_volume |
137 |
container_start_page |
232 |
op_container_end_page |
245 |
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1766300980271382528 |