Biological characteristics of sperm in European flat oyster ( Ostrea edulis )
n 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 nowaday...
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fttriple:oai:gotriple.eu:10670/1.wlimca 2023-05-15T17:54:19+02:00 Biological characteristics of sperm in European flat oyster ( Ostrea edulis ) Suquet, Marc Pouvreau, Stephane Queau, Isabelle Boulais, Myrina Le Grand, Jacqueline Ratiskol, Dominique Cosson, Jacky https://doi.org/10.1051/alr/2018008 https://archimer.ifremer.fr/doc/00454/56539/58245.pdf https://archimer.ifremer.fr/doc/00454/56539/ en eng Edp Sciences S A doi:10.1051/alr/2018008 10670/1.wlimca https://archimer.ifremer.fr/doc/00454/56539/58245.pdf https://archimer.ifremer.fr/doc/00454/56539/ other Archimer, archive institutionnelle de l'Ifremer Aquatic Living Resources (0990-7440) (Edp Sciences S A), 2018-08 , Vol. 31 , P. 20 (7p.) envir geo Text https://vocabularies.coar-repositories.org/resource_types/c_18cf/ fttriple https://doi.org/10.1051/alr/2018008 2023-01-22T16:47:41Z n 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 (Finistère, 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 μm 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. Text Pacific oyster Unknown Pacific Aquatic Living Resources 31 20 |
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envir geo Suquet, Marc Pouvreau, Stephane Queau, Isabelle Boulais, Myrina Le Grand, Jacqueline Ratiskol, Dominique Cosson, Jacky Biological characteristics of sperm in European flat oyster ( Ostrea edulis ) |
topic_facet |
envir geo |
description |
n 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 (Finistère, 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 μm 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. |
format |
Text |
author |
Suquet, Marc Pouvreau, Stephane Queau, Isabelle Boulais, Myrina Le Grand, Jacqueline Ratiskol, Dominique Cosson, Jacky |
author_facet |
Suquet, Marc Pouvreau, Stephane 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 |
Edp Sciences S A |
url |
https://doi.org/10.1051/alr/2018008 https://archimer.ifremer.fr/doc/00454/56539/58245.pdf https://archimer.ifremer.fr/doc/00454/56539/ |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Pacific oyster |
genre_facet |
Pacific oyster |
op_source |
Archimer, archive institutionnelle de l'Ifremer Aquatic Living Resources (0990-7440) (Edp Sciences S A), 2018-08 , Vol. 31 , P. 20 (7p.) |
op_relation |
doi:10.1051/alr/2018008 10670/1.wlimca https://archimer.ifremer.fr/doc/00454/56539/58245.pdf https://archimer.ifremer.fr/doc/00454/56539/ |
op_rights |
other |
op_doi |
https://doi.org/10.1051/alr/2018008 |
container_title |
Aquatic Living Resources |
container_volume |
31 |
container_start_page |
20 |
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1766162066948751360 |