Effect of age and environmental conditions on the movement characteristics of Pacific oyster (Crassostrea gigas) trochophores
The movement characteristics of Pacific oyster trochophores have received very little coverage in the scientific literature. Described here are not only changes in the swimming characteristics of Crassostrea gigas trochophores (size: 53-77 mu m) in relation to time after fertilization and to inter-f...
Published in: | Journal of Applied Ichthyology |
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Format: | Article in Journal/Newspaper |
Language: | English |
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ftinsu:oai:HAL:hal-04499440v1 2024-04-28T08:16:33+00:00 Effect of age and environmental conditions on the movement characteristics of Pacific oyster (Crassostrea gigas) trochophores Suquet, Marc Rimond, Flore Cosson, J. Wilson-Leedy, J. Lebrun, Luc Queau, Isabelle Mingant, Christian Fauvel, Christian 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) Laboratoire Ressources Halieutiques de Port-en-Bessin (LRHPB) Unité Halieutique Manche Mer du Nord (HMMN) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Laboratoire Environnement Ressources de Bretagne Occidentale (LERBO) Unité Littoral (LITTORAL) Unité Biologie des Organismes Marins Exploités (BOME) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) 2013-10 https://hal.science/hal-04499440 https://doi.org/10.1111/jai.12136 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.1111/jai.12136 hal-04499440 https://hal.science/hal-04499440 doi:10.1111/jai.12136 ISSN: 0175-8659 EISSN: 0175-8659 Journal of Applied Ichthyology https://hal.science/hal-04499440 Journal of Applied Ichthyology, 2013, 29 (5), pp.1145-1148. ⟨10.1111/jai.12136⟩ [SDV]Life Sciences [q-bio] [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2013 ftinsu https://doi.org/10.1111/jai.12136 2024-04-05T00:26:21Z The movement characteristics of Pacific oyster trochophores have received very little coverage in the scientific literature. Described here are not only changes in the swimming characteristics of Crassostrea gigas trochophores (size: 53-77 mu m) in relation to time after fertilization and to inter-female variation but also the effects of salinity and pH on movement characteristics. The percentage of motile trochophores was measured on images obtained through a dissecting microscope and the Velocity Average Path (VAP) was assessed using a Computer Assisted Sperm Analysis (CASA) system. At 20 degrees C, the first movements of the trochophores were observed at 6.5 h post-fertilization. The mean (+/- SD) percentage of swimming trochophores and the VAP observed in seawater at 11.5 h post-fertilization were 85 +/- 10% and 146 +/- 75 mu m s(-1), respectively (n = 8 females). Significant inter-female variation in the percentage of motile trochophores (range: +/- 16-93 +/- 3%) and in the VAP (55 +/- 47 -180 +/- 90 mu m s(-1)) was detected. Most of the trochophores were motile in a 9 parts per thousand salinity solution. Adjusting the pH of the seawater to values from 5.10 to 9.08 had no effect on swimming characteristics. The present study shows that the movement of oyster trochophores exhibits high plasticity in relation to environmental conditions because the highest percentages of swimming trochophores and optimal velocity values were recorded within large ranges of salinity and pH. Further research is required to determine whether the swimming performances of trochophores can be used to assess embryo quality in commercial hatcheries. Article in Journal/Newspaper Crassostrea gigas Pacific oyster Institut national des sciences de l'Univers: HAL-INSU Journal of Applied Ichthyology 29 5 1145 1148 |
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Open Polar |
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Institut national des sciences de l'Univers: HAL-INSU |
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ftinsu |
language |
English |
topic |
[SDV]Life Sciences [q-bio] [SDU]Sciences of the Universe [physics] |
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[SDV]Life Sciences [q-bio] [SDU]Sciences of the Universe [physics] Suquet, Marc Rimond, Flore Cosson, J. Wilson-Leedy, J. Lebrun, Luc Queau, Isabelle Mingant, Christian Fauvel, Christian Effect of age and environmental conditions on the movement characteristics of Pacific oyster (Crassostrea gigas) trochophores |
topic_facet |
[SDV]Life Sciences [q-bio] [SDU]Sciences of the Universe [physics] |
description |
The movement characteristics of Pacific oyster trochophores have received very little coverage in the scientific literature. Described here are not only changes in the swimming characteristics of Crassostrea gigas trochophores (size: 53-77 mu m) in relation to time after fertilization and to inter-female variation but also the effects of salinity and pH on movement characteristics. The percentage of motile trochophores was measured on images obtained through a dissecting microscope and the Velocity Average Path (VAP) was assessed using a Computer Assisted Sperm Analysis (CASA) system. At 20 degrees C, the first movements of the trochophores were observed at 6.5 h post-fertilization. The mean (+/- SD) percentage of swimming trochophores and the VAP observed in seawater at 11.5 h post-fertilization were 85 +/- 10% and 146 +/- 75 mu m s(-1), respectively (n = 8 females). Significant inter-female variation in the percentage of motile trochophores (range: +/- 16-93 +/- 3%) and in the VAP (55 +/- 47 -180 +/- 90 mu m s(-1)) was detected. Most of the trochophores were motile in a 9 parts per thousand salinity solution. Adjusting the pH of the seawater to values from 5.10 to 9.08 had no effect on swimming characteristics. The present study shows that the movement of oyster trochophores exhibits high plasticity in relation to environmental conditions because the highest percentages of swimming trochophores and optimal velocity values were recorded within large ranges of salinity and pH. Further research is required to determine whether the swimming performances of trochophores can be used to assess embryo quality in commercial hatcheries. |
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) Laboratoire Ressources Halieutiques de Port-en-Bessin (LRHPB) Unité Halieutique Manche Mer du Nord (HMMN) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Laboratoire Environnement Ressources de Bretagne Occidentale (LERBO) Unité Littoral (LITTORAL) Unité Biologie des Organismes Marins Exploités (BOME) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) |
format |
Article in Journal/Newspaper |
author |
Suquet, Marc Rimond, Flore Cosson, J. Wilson-Leedy, J. Lebrun, Luc Queau, Isabelle Mingant, Christian Fauvel, Christian |
author_facet |
Suquet, Marc Rimond, Flore Cosson, J. Wilson-Leedy, J. Lebrun, Luc Queau, Isabelle Mingant, Christian Fauvel, Christian |
author_sort |
Suquet, Marc |
title |
Effect of age and environmental conditions on the movement characteristics of Pacific oyster (Crassostrea gigas) trochophores |
title_short |
Effect of age and environmental conditions on the movement characteristics of Pacific oyster (Crassostrea gigas) trochophores |
title_full |
Effect of age and environmental conditions on the movement characteristics of Pacific oyster (Crassostrea gigas) trochophores |
title_fullStr |
Effect of age and environmental conditions on the movement characteristics of Pacific oyster (Crassostrea gigas) trochophores |
title_full_unstemmed |
Effect of age and environmental conditions on the movement characteristics of Pacific oyster (Crassostrea gigas) trochophores |
title_sort |
effect of age and environmental conditions on the movement characteristics of pacific oyster (crassostrea gigas) trochophores |
publisher |
HAL CCSD |
publishDate |
2013 |
url |
https://hal.science/hal-04499440 https://doi.org/10.1111/jai.12136 |
genre |
Crassostrea gigas Pacific oyster |
genre_facet |
Crassostrea gigas Pacific oyster |
op_source |
ISSN: 0175-8659 EISSN: 0175-8659 Journal of Applied Ichthyology https://hal.science/hal-04499440 Journal of Applied Ichthyology, 2013, 29 (5), pp.1145-1148. ⟨10.1111/jai.12136⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1111/jai.12136 hal-04499440 https://hal.science/hal-04499440 doi:10.1111/jai.12136 |
op_doi |
https://doi.org/10.1111/jai.12136 |
container_title |
Journal of Applied Ichthyology |
container_volume |
29 |
container_issue |
5 |
container_start_page |
1145 |
op_container_end_page |
1148 |
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1797581631818563584 |