Biological characteristics of sperm in European flat oyster (Ostrea edulis)
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 nowada...
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EDP Sciences
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Online Access: | https://doi.org/10.1051/alr/2018008 https://doaj.org/article/17b9a23bcdc14f9ebfd8fbfaf7d5bbe0 |
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ftdoajarticles:oai:doaj.org/article:17b9a23bcdc14f9ebfd8fbfaf7d5bbe0 2023-10-09T21:55:04+02:00 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 2018-01-01T00:00:00Z https://doi.org/10.1051/alr/2018008 https://doaj.org/article/17b9a23bcdc14f9ebfd8fbfaf7d5bbe0 EN eng EDP Sciences https://www.alr-journal.org/articles/alr/full_html/2018/01/alr170150/alr170150.html https://doaj.org/toc/1765-2952 1765-2952 doi:10.1051/alr/2018008 https://doaj.org/article/17b9a23bcdc14f9ebfd8fbfaf7d5bbe0 Aquatic Living Resources, Vol 31, p 20 (2018) oyster ostrea edulis brooding species sperm spermatozeugmata endangered species Aquaculture. Fisheries. Angling SH1-691 article 2018 ftdoajarticles https://doi.org/10.1051/alr/2018008 2023-09-10T00:46:35Z 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 (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. Article in Journal/Newspaper Pacific oyster Directory of Open Access Journals: DOAJ Articles Pacific Aquatic Living Resources 31 20 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
oyster ostrea edulis brooding species sperm spermatozeugmata endangered species Aquaculture. Fisheries. Angling SH1-691 |
spellingShingle |
oyster ostrea edulis brooding species sperm spermatozeugmata endangered species Aquaculture. Fisheries. Angling SH1-691 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 |
oyster ostrea edulis brooding species sperm spermatozeugmata endangered species Aquaculture. Fisheries. Angling SH1-691 |
description |
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 (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 |
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 |
EDP Sciences |
publishDate |
2018 |
url |
https://doi.org/10.1051/alr/2018008 https://doaj.org/article/17b9a23bcdc14f9ebfd8fbfaf7d5bbe0 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Pacific oyster |
genre_facet |
Pacific oyster |
op_source |
Aquatic Living Resources, Vol 31, p 20 (2018) |
op_relation |
https://www.alr-journal.org/articles/alr/full_html/2018/01/alr170150/alr170150.html https://doaj.org/toc/1765-2952 1765-2952 doi:10.1051/alr/2018008 https://doaj.org/article/17b9a23bcdc14f9ebfd8fbfaf7d5bbe0 |
op_doi |
https://doi.org/10.1051/alr/2018008 |
container_title |
Aquatic Living Resources |
container_volume |
31 |
container_start_page |
20 |
_version_ |
1779318864968941568 |