Biological characteristics of sperm in European flat oyster (Ostrea edulis)
WOS:000443103100002 International audience In brooding mollusc species that incubate larvae before their release in seawater, the biology of gametes remains poorly explored. The present study describes some biological characteristics of sperm of the European flat oyster, a native species that has be...
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ftinsu:oai:HAL:hal-02651006v1 2024-02-11T10:03:13+01:00 Biological characteristics of sperm in European flat oyster (Ostrea edulis) Suquet, Marc Pouvreau, Stéphane Queau, Isabelle Boulais, Myrina Le Grand, Jacqueline Ratiskol, Dominique Cosson, Jacky 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) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) University of South Bohemia ANR-11-INBS-0003,CRB-Anim,Réseau de Centres de Ressources Biologiques pour les animaux domestiques(2011) 2018 https://hal.science/hal-02651006 https://hal.science/hal-02651006/document https://hal.science/hal-02651006/file/Suquet_etal_ALR_2018.pdf https://doi.org/10.1051/alr/2018008 en eng HAL CCSD EDP Sciences info:eu-repo/semantics/altIdentifier/doi/10.1051/alr/2018008 hal-02651006 https://hal.science/hal-02651006 https://hal.science/hal-02651006/document https://hal.science/hal-02651006/file/Suquet_etal_ALR_2018.pdf doi:10.1051/alr/2018008 info:eu-repo/semantics/OpenAccess ISSN: 0990-7440 EISSN: 1765-2952 Aquatic Living Resources https://hal.science/hal-02651006 Aquatic Living Resources, 2018, 31, pp.20. ⟨10.1051/alr/2018008⟩ ACL fertilization sperm Oyster ultrastructure Ostrea edulis pacific oyster crassostrea-gigas endangered species system arenicola-marina brooding species elasmobranchii galeommatoidea morphology spermatozeugmata [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2018 ftinsu https://doi.org/10.1051/alr/2018008 2024-01-24T17:34:01Z WOS:000443103100002 International audience In brooding mollusc species that incubate larvae before their release in seawater, the biology of gametes remains poorly explored. The present study describes some biological characteristics of sperm of the European flat oyster, a native species that has been over-exploited in the past and is nowadays classified as an endangered species in Europe. Flat oysters were collected by divers in the Rade de Brest (Finistere, France), during its natural reproduction period. Gonadal pH is acidic (6.31 +/- 0.10). Spermatozoa are clustered in spermatozeugmata, an acellular structure in which the sperm heads are embedded. After their transfer in seawater, spermatozeugmata have a mean diameter of 64 +/- 3 mu m and they release free spermatozoa for a mean duration of 21 +/- 3 min. Immediately after their release, the mean percentage of motile spermatozoa was 48.5 +/- 12.6%. At 10 min after dilution in seawater, movement of spermatozoa was no more observed. Biological characteristics of European flat oyster sperm are compared to those observed in the Pacific oyster, regarding the unique reproductive behaviour of the former species and the role of spermatozoa transfer played by spermatozeugmata. The present results aim to improve the knowledge of reproduction and natural recruitment processes, support conservation and restoration measures and favour the establishment of management protocols of gametes and larvae in this endangered species. Article in Journal/Newspaper Crassostrea gigas Pacific oyster Institut national des sciences de l'Univers: HAL-INSU Pacific Aquatic Living Resources 31 20 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
ACL fertilization sperm Oyster ultrastructure Ostrea edulis pacific oyster crassostrea-gigas endangered species system arenicola-marina brooding species elasmobranchii galeommatoidea morphology spermatozeugmata [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
ACL fertilization sperm Oyster ultrastructure Ostrea edulis pacific oyster crassostrea-gigas endangered species system arenicola-marina brooding species elasmobranchii galeommatoidea morphology spermatozeugmata [SDE.BE]Environmental Sciences/Biodiversity and Ecology Suquet, Marc Pouvreau, Stéphane Queau, Isabelle Boulais, Myrina Le Grand, Jacqueline Ratiskol, Dominique Cosson, Jacky Biological characteristics of sperm in European flat oyster (Ostrea edulis) |
topic_facet |
ACL fertilization sperm Oyster ultrastructure Ostrea edulis pacific oyster crassostrea-gigas endangered species system arenicola-marina brooding species elasmobranchii galeommatoidea morphology spermatozeugmata [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
WOS:000443103100002 International audience In brooding mollusc species that incubate larvae before their release in seawater, the biology of gametes remains poorly explored. The present study describes some biological characteristics of sperm of the European flat oyster, a native species that has been over-exploited in the past and is nowadays classified as an endangered species in Europe. Flat oysters were collected by divers in the Rade de Brest (Finistere, France), during its natural reproduction period. Gonadal pH is acidic (6.31 +/- 0.10). Spermatozoa are clustered in spermatozeugmata, an acellular structure in which the sperm heads are embedded. After their transfer in seawater, spermatozeugmata have a mean diameter of 64 +/- 3 mu m and they release free spermatozoa for a mean duration of 21 +/- 3 min. Immediately after their release, the mean percentage of motile spermatozoa was 48.5 +/- 12.6%. At 10 min after dilution in seawater, movement of spermatozoa was no more observed. Biological characteristics of European flat oyster sperm are compared to those observed in the Pacific oyster, regarding the unique reproductive behaviour of the former species and the role of spermatozoa transfer played by spermatozeugmata. The present results aim to improve the knowledge of reproduction and natural recruitment processes, support conservation and restoration measures and favour the establishment of management protocols of gametes and larvae in this endangered species. |
author2 |
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) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) University of South Bohemia ANR-11-INBS-0003,CRB-Anim,Réseau de Centres de Ressources Biologiques pour les animaux domestiques(2011) |
format |
Article in Journal/Newspaper |
author |
Suquet, Marc Pouvreau, Stéphane Queau, Isabelle Boulais, Myrina Le Grand, Jacqueline Ratiskol, Dominique Cosson, Jacky |
author_facet |
Suquet, Marc Pouvreau, Stéphane Queau, Isabelle Boulais, Myrina Le Grand, Jacqueline Ratiskol, Dominique Cosson, Jacky |
author_sort |
Suquet, Marc |
title |
Biological characteristics of sperm in European flat oyster (Ostrea edulis) |
title_short |
Biological characteristics of sperm in European flat oyster (Ostrea edulis) |
title_full |
Biological characteristics of sperm in European flat oyster (Ostrea edulis) |
title_fullStr |
Biological characteristics of sperm in European flat oyster (Ostrea edulis) |
title_full_unstemmed |
Biological characteristics of sperm in European flat oyster (Ostrea edulis) |
title_sort |
biological characteristics of sperm in european flat oyster (ostrea edulis) |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.science/hal-02651006 https://hal.science/hal-02651006/document https://hal.science/hal-02651006/file/Suquet_etal_ALR_2018.pdf https://doi.org/10.1051/alr/2018008 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Crassostrea gigas Pacific oyster |
genre_facet |
Crassostrea gigas Pacific oyster |
op_source |
ISSN: 0990-7440 EISSN: 1765-2952 Aquatic Living Resources https://hal.science/hal-02651006 Aquatic Living Resources, 2018, 31, pp.20. ⟨10.1051/alr/2018008⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1051/alr/2018008 hal-02651006 https://hal.science/hal-02651006 https://hal.science/hal-02651006/document https://hal.science/hal-02651006/file/Suquet_etal_ALR_2018.pdf doi:10.1051/alr/2018008 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1051/alr/2018008 |
container_title |
Aquatic Living Resources |
container_volume |
31 |
container_start_page |
20 |
_version_ |
1790599407139291136 |