Brooding strategy of the Arctic cold seep polychaete Oligobrachia haakonmosbiensis
International audience The Arctic polychaete, Oligobrachia haakonmosbiensis (Family Siboglinidae) is the most abundant symbiotic species inhabiting the Haakon Mosby Mud Volcano (Norwegian Sea, depth 1250 m). Different aspects of gametogenesis, fecundity, embryogenesis and larval development were stu...
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ftunivlille:oai:HAL:hal-02873989v1 2024-06-23T07:49:49+00:00 Brooding strategy of the Arctic cold seep polychaete Oligobrachia haakonmosbiensis Marta, Mammone Courcot, Lucie Hilário, Ana Gaudron, Sylvie Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 (LOG) Institut national des sciences de l'Univers (INSU - CNRS)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD France-Nord ) Université du Littoral Côte d'Opale (ULCO) Centre for Environmental and Marine Studies Aveiro (CESAM) Universidade de Aveiro 2020-04 https://hal.sorbonne-universite.fr/hal-02873989 https://hal.sorbonne-universite.fr/hal-02873989/document https://hal.sorbonne-universite.fr/hal-02873989/file/MABI-D-19-00417_R4.pdf https://doi.org/10.1007/s00227-020-3656-4 en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s00227-020-3656-4 hal-02873989 https://hal.sorbonne-universite.fr/hal-02873989 https://hal.sorbonne-universite.fr/hal-02873989/document https://hal.sorbonne-universite.fr/hal-02873989/file/MABI-D-19-00417_R4.pdf doi:10.1007/s00227-020-3656-4 info:eu-repo/semantics/OpenAccess ISSN: 0025-3162 EISSN: 1432-1793 Marine Biology https://hal.sorbonne-universite.fr/hal-02873989 Marine Biology, 2020, 167 (4), pp.42. ⟨10.1007/s00227-020-3656-4⟩ life cycle Siboglinidae Annelida dispersal gametogenesis deep sea Larvae [SDV.BA.ZI]Life Sciences [q-bio]/Animal biology/Invertebrate Zoology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDV.BDD]Life Sciences [q-bio]/Development Biology info:eu-repo/semantics/article Journal articles 2020 ftunivlille https://doi.org/10.1007/s00227-020-3656-4 2024-06-10T15:02:43Z International audience The Arctic polychaete, Oligobrachia haakonmosbiensis (Family Siboglinidae) is the most abundant symbiotic species inhabiting the Haakon Mosby Mud Volcano (Norwegian Sea, depth 1250 m). Different aspects of gametogenesis, fecundity, embryogenesis and larval development were studied using biometric measurements, classical histology and scanning electron microscopy on specimens (n = 15) collected in July 2009 at two sites (72°00.28'N, 14°43.36'E; 72°00.33'N, 14°43.22'E). Several cohorts of oocytes, from oogonia to mature oocytes were observed in brooding females. Embryos with 16-64 cell divisions, trochophore and metatrochophore larvae, were found, in sequence, in female tubes, from just above the tentacles to the anterior end of the tube. Trochophores had both a prototroch and a telotroch; metatrochophores had an additional ciliary band, the neurotroch, but lacked a downstream feeding system. All of female reproductive stages, oocytes, embryos and larvae, were recovered in a single specimen suggesting the release of different batches of oocytes at least on the date of collection, which coincided with the boreal summer. Only one brooding female contained exclusively germ cells in the gonad suggesting a pause in reproduction. Fecundity was low: a maximum of 60 mature oocytes per female was counted, and if all the different stages of oocytes, embryos and larvae were combined, a total fecundity of ~250-300 propagules was found in each female. This study advances knowledge of the reproductive biology of O. haakonmosbiensis and has particular significance for understanding the distribution of this ecologically important deep-sea chemosymbiotic species in the Arctic region. The new data on life-history traits are critical for modeling, and predicting dispersal potential and connectivity among cold seeps in the Arctic, which is an essential component of marine spatial management. Article in Journal/Newspaper Arctic Norwegian Sea LillOA (HAL Lille Open Archive, Université de Lille) Arctic Norwegian Sea Marine Biology 167 4 |
institution |
Open Polar |
collection |
LillOA (HAL Lille Open Archive, Université de Lille) |
op_collection_id |
ftunivlille |
language |
English |
topic |
life cycle Siboglinidae Annelida dispersal gametogenesis deep sea Larvae [SDV.BA.ZI]Life Sciences [q-bio]/Animal biology/Invertebrate Zoology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDV.BDD]Life Sciences [q-bio]/Development Biology |
spellingShingle |
life cycle Siboglinidae Annelida dispersal gametogenesis deep sea Larvae [SDV.BA.ZI]Life Sciences [q-bio]/Animal biology/Invertebrate Zoology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDV.BDD]Life Sciences [q-bio]/Development Biology Marta, Mammone Courcot, Lucie Hilário, Ana Gaudron, Sylvie Brooding strategy of the Arctic cold seep polychaete Oligobrachia haakonmosbiensis |
topic_facet |
life cycle Siboglinidae Annelida dispersal gametogenesis deep sea Larvae [SDV.BA.ZI]Life Sciences [q-bio]/Animal biology/Invertebrate Zoology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDV.BDD]Life Sciences [q-bio]/Development Biology |
description |
International audience The Arctic polychaete, Oligobrachia haakonmosbiensis (Family Siboglinidae) is the most abundant symbiotic species inhabiting the Haakon Mosby Mud Volcano (Norwegian Sea, depth 1250 m). Different aspects of gametogenesis, fecundity, embryogenesis and larval development were studied using biometric measurements, classical histology and scanning electron microscopy on specimens (n = 15) collected in July 2009 at two sites (72°00.28'N, 14°43.36'E; 72°00.33'N, 14°43.22'E). Several cohorts of oocytes, from oogonia to mature oocytes were observed in brooding females. Embryos with 16-64 cell divisions, trochophore and metatrochophore larvae, were found, in sequence, in female tubes, from just above the tentacles to the anterior end of the tube. Trochophores had both a prototroch and a telotroch; metatrochophores had an additional ciliary band, the neurotroch, but lacked a downstream feeding system. All of female reproductive stages, oocytes, embryos and larvae, were recovered in a single specimen suggesting the release of different batches of oocytes at least on the date of collection, which coincided with the boreal summer. Only one brooding female contained exclusively germ cells in the gonad suggesting a pause in reproduction. Fecundity was low: a maximum of 60 mature oocytes per female was counted, and if all the different stages of oocytes, embryos and larvae were combined, a total fecundity of ~250-300 propagules was found in each female. This study advances knowledge of the reproductive biology of O. haakonmosbiensis and has particular significance for understanding the distribution of this ecologically important deep-sea chemosymbiotic species in the Arctic region. The new data on life-history traits are critical for modeling, and predicting dispersal potential and connectivity among cold seeps in the Arctic, which is an essential component of marine spatial management. |
author2 |
Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 (LOG) Institut national des sciences de l'Univers (INSU - CNRS)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD France-Nord ) Université du Littoral Côte d'Opale (ULCO) Centre for Environmental and Marine Studies Aveiro (CESAM) Universidade de Aveiro |
format |
Article in Journal/Newspaper |
author |
Marta, Mammone Courcot, Lucie Hilário, Ana Gaudron, Sylvie |
author_facet |
Marta, Mammone Courcot, Lucie Hilário, Ana Gaudron, Sylvie |
author_sort |
Marta, Mammone |
title |
Brooding strategy of the Arctic cold seep polychaete Oligobrachia haakonmosbiensis |
title_short |
Brooding strategy of the Arctic cold seep polychaete Oligobrachia haakonmosbiensis |
title_full |
Brooding strategy of the Arctic cold seep polychaete Oligobrachia haakonmosbiensis |
title_fullStr |
Brooding strategy of the Arctic cold seep polychaete Oligobrachia haakonmosbiensis |
title_full_unstemmed |
Brooding strategy of the Arctic cold seep polychaete Oligobrachia haakonmosbiensis |
title_sort |
brooding strategy of the arctic cold seep polychaete oligobrachia haakonmosbiensis |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal.sorbonne-universite.fr/hal-02873989 https://hal.sorbonne-universite.fr/hal-02873989/document https://hal.sorbonne-universite.fr/hal-02873989/file/MABI-D-19-00417_R4.pdf https://doi.org/10.1007/s00227-020-3656-4 |
geographic |
Arctic Norwegian Sea |
geographic_facet |
Arctic Norwegian Sea |
genre |
Arctic Norwegian Sea |
genre_facet |
Arctic Norwegian Sea |
op_source |
ISSN: 0025-3162 EISSN: 1432-1793 Marine Biology https://hal.sorbonne-universite.fr/hal-02873989 Marine Biology, 2020, 167 (4), pp.42. ⟨10.1007/s00227-020-3656-4⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00227-020-3656-4 hal-02873989 https://hal.sorbonne-universite.fr/hal-02873989 https://hal.sorbonne-universite.fr/hal-02873989/document https://hal.sorbonne-universite.fr/hal-02873989/file/MABI-D-19-00417_R4.pdf doi:10.1007/s00227-020-3656-4 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1007/s00227-020-3656-4 |
container_title |
Marine Biology |
container_volume |
167 |
container_issue |
4 |
_version_ |
1802640503448010752 |