In situ spawning in a marine broadcast spawner, the Pacific oyster Crassostrea gigas: Timing and environmental triggers
International audience The precise environmental conditions under which broadcast spawners spawn in the field remain largely unknown. We investigated this issue in the oyster Crassostrea gigas using three different methods at different time scales in two traditional oyster farming areas of the Frenc...
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Online Access: | https://hal.science/hal-01483237 https://doi.org/10.1002/lno.10240 |
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ftunivnantes:oai:HAL:hal-01483237v1 2023-05-15T15:58:12+02:00 In situ spawning in a marine broadcast spawner, the Pacific oyster Crassostrea gigas: Timing and environmental triggers Bernard, I. Massabuau, J.-C. Ciret, P. Sow, Moustapha Sottolichio, A. Pouvreau, Stéphane Tran, D. Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Environnements et Paléoenvironnements OCéaniques (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École pratique des hautes études (EPHE) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) 2016-03 https://hal.science/hal-01483237 https://doi.org/10.1002/lno.10240 en eng HAL CCSD Association for the Sciences of Limnology and Oceanography info:eu-repo/semantics/altIdentifier/doi/10.1002/lno.10240 hal-01483237 https://hal.science/hal-01483237 doi:10.1002/lno.10240 ISSN: 0024-3590 EISSN: 1939-5590 Limnology and Oceanography https://hal.science/hal-01483237 Limnology and Oceanography, 2016, 61 (2), pp.635-647. ⟨10.1002/lno.10240⟩ TEMPERATURE ACL OSTREA VIRGINICA FERTILIZATION STRATEGIES SPERM LIMITATION PINCTADA-MARGARITIFERA SEXUAL CONFLICT GAMETE RELEASE SEA REPRODUCTION BIVALVE [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2016 ftunivnantes https://doi.org/10.1002/lno.10240 2023-02-08T09:41:53Z International audience The precise environmental conditions under which broadcast spawners spawn in the field remain largely unknown. We investigated this issue in the oyster Crassostrea gigas using three different methods at different time scales in two traditional oyster farming areas of the French Atlantic Coast, the Bay of Arcachon and Marennes-Oléron. We directly recorded spawning at high temporal resolution using high-frequency non-invasive (HFNI) valvometry from 2007–2014 and measured the dry mass and oyster larvae abundance in 2008 and 2009. We analyzed a 29-yr series of oyster D-larvae numbers in the Bay of Arcachon (1982–2010). By combining these three approaches, we demonstrated that during the summer months at both sites, spawning in C. gigas occurs in the morning or during the evening, essentially at high tide of perigean spring tides, independent of the positions of these oysters, above or below the lowest water level. We characterized the associated water currents at the spawning location in the Bay of Arcachon and observed that spawning systematically occurs during the early phase of a water current peak, at the beginning of ebbing. We propose that this water current peak acts as a final trigger for spawning. These results have ecological consequences associated with gamete encounters and the dispersal of fertilized eggs (zygotes). Article in Journal/Newspaper Crassostrea gigas Pacific oyster Université de Nantes: HAL-UNIV-NANTES Pacific Limnology and Oceanography 61 2 635 647 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
TEMPERATURE ACL OSTREA VIRGINICA FERTILIZATION STRATEGIES SPERM LIMITATION PINCTADA-MARGARITIFERA SEXUAL CONFLICT GAMETE RELEASE SEA REPRODUCTION BIVALVE [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
TEMPERATURE ACL OSTREA VIRGINICA FERTILIZATION STRATEGIES SPERM LIMITATION PINCTADA-MARGARITIFERA SEXUAL CONFLICT GAMETE RELEASE SEA REPRODUCTION BIVALVE [SDE.BE]Environmental Sciences/Biodiversity and Ecology Bernard, I. Massabuau, J.-C. Ciret, P. Sow, Moustapha Sottolichio, A. Pouvreau, Stéphane Tran, D. In situ spawning in a marine broadcast spawner, the Pacific oyster Crassostrea gigas: Timing and environmental triggers |
topic_facet |
TEMPERATURE ACL OSTREA VIRGINICA FERTILIZATION STRATEGIES SPERM LIMITATION PINCTADA-MARGARITIFERA SEXUAL CONFLICT GAMETE RELEASE SEA REPRODUCTION BIVALVE [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
International audience The precise environmental conditions under which broadcast spawners spawn in the field remain largely unknown. We investigated this issue in the oyster Crassostrea gigas using three different methods at different time scales in two traditional oyster farming areas of the French Atlantic Coast, the Bay of Arcachon and Marennes-Oléron. We directly recorded spawning at high temporal resolution using high-frequency non-invasive (HFNI) valvometry from 2007–2014 and measured the dry mass and oyster larvae abundance in 2008 and 2009. We analyzed a 29-yr series of oyster D-larvae numbers in the Bay of Arcachon (1982–2010). By combining these three approaches, we demonstrated that during the summer months at both sites, spawning in C. gigas occurs in the morning or during the evening, essentially at high tide of perigean spring tides, independent of the positions of these oysters, above or below the lowest water level. We characterized the associated water currents at the spawning location in the Bay of Arcachon and observed that spawning systematically occurs during the early phase of a water current peak, at the beginning of ebbing. We propose that this water current peak acts as a final trigger for spawning. These results have ecological consequences associated with gamete encounters and the dispersal of fertilized eggs (zygotes). |
author2 |
Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Environnements et Paléoenvironnements OCéaniques (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École pratique des hautes études (EPHE) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Bernard, I. Massabuau, J.-C. Ciret, P. Sow, Moustapha Sottolichio, A. Pouvreau, Stéphane Tran, D. |
author_facet |
Bernard, I. Massabuau, J.-C. Ciret, P. Sow, Moustapha Sottolichio, A. Pouvreau, Stéphane Tran, D. |
author_sort |
Bernard, I. |
title |
In situ spawning in a marine broadcast spawner, the Pacific oyster Crassostrea gigas: Timing and environmental triggers |
title_short |
In situ spawning in a marine broadcast spawner, the Pacific oyster Crassostrea gigas: Timing and environmental triggers |
title_full |
In situ spawning in a marine broadcast spawner, the Pacific oyster Crassostrea gigas: Timing and environmental triggers |
title_fullStr |
In situ spawning in a marine broadcast spawner, the Pacific oyster Crassostrea gigas: Timing and environmental triggers |
title_full_unstemmed |
In situ spawning in a marine broadcast spawner, the Pacific oyster Crassostrea gigas: Timing and environmental triggers |
title_sort |
in situ spawning in a marine broadcast spawner, the pacific oyster crassostrea gigas: timing and environmental triggers |
publisher |
HAL CCSD |
publishDate |
2016 |
url |
https://hal.science/hal-01483237 https://doi.org/10.1002/lno.10240 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Crassostrea gigas Pacific oyster |
genre_facet |
Crassostrea gigas Pacific oyster |
op_source |
ISSN: 0024-3590 EISSN: 1939-5590 Limnology and Oceanography https://hal.science/hal-01483237 Limnology and Oceanography, 2016, 61 (2), pp.635-647. ⟨10.1002/lno.10240⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/lno.10240 hal-01483237 https://hal.science/hal-01483237 doi:10.1002/lno.10240 |
op_doi |
https://doi.org/10.1002/lno.10240 |
container_title |
Limnology and Oceanography |
container_volume |
61 |
container_issue |
2 |
container_start_page |
635 |
op_container_end_page |
647 |
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1766393925733449728 |