Marine free-living nematodes associated with symbiotic bacteria in deep-sea canyons of north-east Atlantic Ocean
Two nematode species living in association with chemoautotrophic prokaryotes were found in two deep-sea canyon/channel systems, the Whittard Canyon and Gollum Channels, north-east Atlantic. Parabostrichus bathyalis gen. nov. sp. nov. (Desmodorida: Desmodoridae: Stilbonematinae) relates to Eubostrich...
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ftvliz:oai:oma.vliz.be:212699 2023-05-15T17:38:19+02:00 Marine free-living nematodes associated with symbiotic bacteria in deep-sea canyons of north-east Atlantic Ocean Tchesunov, A.V. Ingels, J. Popova, E.V. 2012 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=212699 en eng info:eu-repo/semantics/altIdentifier/wos/000308312900003 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1017/S0025315411002116 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=212699 info:eu-repo/semantics/restrictedAccess %3Ci%3EJ.+Mar.+Biol.+Ass.+U.K.+92%286%29%3C%2Fi%3E%3A+1257-1271.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1017%2FS0025315411002116%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1017%2FS0025315411002116%3C%2Fa%3E Bacteria New species Symbionts Astomonema Nematoda [Nematodes] Parabostrichus Stilbonematidae Stilbonematinae info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2012 ftvliz https://doi.org/10.1017/S0025315411002116 2022-05-01T09:41:51Z Two nematode species living in association with chemoautotrophic prokaryotes were found in two deep-sea canyon/channel systems, the Whittard Canyon and Gollum Channels, north-east Atlantic. Parabostrichus bathyalis gen. nov. sp. nov. (Desmodorida: Desmodoridae: Stilbonematinae) relates to Eubostrichus Greeff 1869 but differs in having well-developed paired dorso-caudal apophyses of the gubernaculum, small pre- and postcloacal latero-ventral papillae with short apical setae, elongate tail with slender posterior portion, and the absence of thorn-like setae (porids) in males. Body of P. bathyalis is loosely covered with elongate cells of prokaryote ectosymbionts. Astomonema southwardorum Austen et al. 1993, originally found at a methane seep pockmark in the North Sea, constitutes a significant portion of nematode communities in certain areas of the deep-sea canyon/channel systems. Taxonomic difficulties within Astomonematinae are discussed in light of the character state of paired male gonads discovered in A. southwardorum . Canyon populations of A. southwardorum are characterized by frequent loss of part of the hind body and wound healing posterior to the vulva in females. Both species tend to occur in deeper subsurface layers of the bottom sediment. Abundance of the nematode species associated with aggregations of ectosymbiotic ( Parabostrichus ) and endosymbiotic ( Astomonema ) chemoautotrophic bacteria may indicate reduced conditions at sites in these deep-sea canyons/channels and suggests a potentially substantial ecological role for chemolitotrophic fauna there. Article in Journal/Newspaper North East Atlantic Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) Journal of the Marine Biological Association of the United Kingdom 92 6 1257 1271 |
institution |
Open Polar |
collection |
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) |
op_collection_id |
ftvliz |
language |
English |
topic |
Bacteria New species Symbionts Astomonema Nematoda [Nematodes] Parabostrichus Stilbonematidae Stilbonematinae |
spellingShingle |
Bacteria New species Symbionts Astomonema Nematoda [Nematodes] Parabostrichus Stilbonematidae Stilbonematinae Tchesunov, A.V. Ingels, J. Popova, E.V. Marine free-living nematodes associated with symbiotic bacteria in deep-sea canyons of north-east Atlantic Ocean |
topic_facet |
Bacteria New species Symbionts Astomonema Nematoda [Nematodes] Parabostrichus Stilbonematidae Stilbonematinae |
description |
Two nematode species living in association with chemoautotrophic prokaryotes were found in two deep-sea canyon/channel systems, the Whittard Canyon and Gollum Channels, north-east Atlantic. Parabostrichus bathyalis gen. nov. sp. nov. (Desmodorida: Desmodoridae: Stilbonematinae) relates to Eubostrichus Greeff 1869 but differs in having well-developed paired dorso-caudal apophyses of the gubernaculum, small pre- and postcloacal latero-ventral papillae with short apical setae, elongate tail with slender posterior portion, and the absence of thorn-like setae (porids) in males. Body of P. bathyalis is loosely covered with elongate cells of prokaryote ectosymbionts. Astomonema southwardorum Austen et al. 1993, originally found at a methane seep pockmark in the North Sea, constitutes a significant portion of nematode communities in certain areas of the deep-sea canyon/channel systems. Taxonomic difficulties within Astomonematinae are discussed in light of the character state of paired male gonads discovered in A. southwardorum . Canyon populations of A. southwardorum are characterized by frequent loss of part of the hind body and wound healing posterior to the vulva in females. Both species tend to occur in deeper subsurface layers of the bottom sediment. Abundance of the nematode species associated with aggregations of ectosymbiotic ( Parabostrichus ) and endosymbiotic ( Astomonema ) chemoautotrophic bacteria may indicate reduced conditions at sites in these deep-sea canyons/channels and suggests a potentially substantial ecological role for chemolitotrophic fauna there. |
format |
Article in Journal/Newspaper |
author |
Tchesunov, A.V. Ingels, J. Popova, E.V. |
author_facet |
Tchesunov, A.V. Ingels, J. Popova, E.V. |
author_sort |
Tchesunov, A.V. |
title |
Marine free-living nematodes associated with symbiotic bacteria in deep-sea canyons of north-east Atlantic Ocean |
title_short |
Marine free-living nematodes associated with symbiotic bacteria in deep-sea canyons of north-east Atlantic Ocean |
title_full |
Marine free-living nematodes associated with symbiotic bacteria in deep-sea canyons of north-east Atlantic Ocean |
title_fullStr |
Marine free-living nematodes associated with symbiotic bacteria in deep-sea canyons of north-east Atlantic Ocean |
title_full_unstemmed |
Marine free-living nematodes associated with symbiotic bacteria in deep-sea canyons of north-east Atlantic Ocean |
title_sort |
marine free-living nematodes associated with symbiotic bacteria in deep-sea canyons of north-east atlantic ocean |
publishDate |
2012 |
url |
http://www.vliz.be/nl/open-marien-archief?module=ref&refid=212699 |
genre |
North East Atlantic |
genre_facet |
North East Atlantic |
op_source |
%3Ci%3EJ.+Mar.+Biol.+Ass.+U.K.+92%286%29%3C%2Fi%3E%3A+1257-1271.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1017%2FS0025315411002116%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1017%2FS0025315411002116%3C%2Fa%3E |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/000308312900003 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1017/S0025315411002116 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=212699 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1017/S0025315411002116 |
container_title |
Journal of the Marine Biological Association of the United Kingdom |
container_volume |
92 |
container_issue |
6 |
container_start_page |
1257 |
op_container_end_page |
1271 |
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1766138720546717696 |