Dynamics of stable isotope ratios (d13c and d15n) in different organs of crassostrea gigas at two contrasted ecosystems : insights from growth and food sources
International audience We studied the influence of food availability on the growth (whole body and organs) of the oyster Crassostrea gigas and on the dynamics of their delta C-13 and delta N-15 respective values. Juvenile oysters originating from Arcachon Bay were transplanted to two contrasting eco...
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ftunivnantes:oai:HAL:hal-02630078v1 2023-05-15T15:58:17+02:00 Dynamics of stable isotope ratios (d13c and d15n) in different organs of crassostrea gigas at two contrasted ecosystems : insights from growth and food sources Emmery, A. Alunno Bruscia, M. Bataillé, Marie-Paule, Kooijman, S. A. L. M. Lefebvre, Sebastien Université de Caen Normandie (UNICAEN) Normandie Université (NU) Vrije Universiteit Amsterdam Amsterdam (VU) Université du Littoral Côte d'Opale (ULCO) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Ecophysiologie Végétale, Agronomie et Nutritions (EVA) Normandie Université (NU)-Normandie Université (NU)-Institut National de la Recherche Agronomique (INRA) Region Basse-Normandie and Ifremer 2016 https://hal.inrae.fr/hal-02630078 en eng HAL CCSD Observatoire Océanologique - Laboratoire Arago hal-02630078 https://hal.inrae.fr/hal-02630078 PRODINRA: 451614 WOS: 000401091600004 ISSN: 0240-8759 Vie et Milieu / Life & Environment https://hal.inrae.fr/hal-02630078 Vie et Milieu / Life & Environment, Observatoire Océanologique - Laboratoire Arago, 2016, 66 (3-4), pp.261-273 marennes-oleron bay crepidula-fornicata reproductive-cycle coastal ecosystems suspension-feeders cerastoderma-edule seasonal-variation trophic ecology carbon isotopes mytilus-edulis [SDV]Life Sciences [q-bio] [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2016 ftunivnantes 2022-08-10T04:05:25Z International audience We studied the influence of food availability on the growth (whole body and organs) of the oyster Crassostrea gigas and on the dynamics of their delta C-13 and delta N-15 respective values. Juvenile oysters originating from Arcachon Bay were transplanted to two contrasting ecosystems, Baie des Veys (BDV) and Rade de Brest (RDB), for a 1-yr growth survey. In BDV, chlorophyll-a concentrations ([Chl-a]) was 3 times higher than in RDB on average, which accounts for the differences in oyster growth between BDV and RDB. Differences in trophic conditions could also explain the differences in C/N ratios and delta C-13 values between sites partly due to higher investment in gametogenesis for the oysters in BDV than in RDB; these differences widened when lipid normalized delta C-13 values were used. Oysters clearly selected microalgae as the main food source, and especially phytoplankton. Gi (Gills), Mu (Muscle) and Re (remaining organs) clearly exhibited different isotopic enrichment levels, with delta(Mu) > delta(Gi) > delta(Re) regardless of C or N elements, culture sites and seasons. delta N-15 discrimination between organs was rather equivalent between sites. These results would benefit from an experiment under controlled conditions along a calibration of the lipid normalization to correct delta C-13 values in bivalves. Article in Journal/Newspaper Crassostrea gigas Université de Nantes: HAL-UNIV-NANTES |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
marennes-oleron bay crepidula-fornicata reproductive-cycle coastal ecosystems suspension-feeders cerastoderma-edule seasonal-variation trophic ecology carbon isotopes mytilus-edulis [SDV]Life Sciences [q-bio] [SDE]Environmental Sciences |
spellingShingle |
marennes-oleron bay crepidula-fornicata reproductive-cycle coastal ecosystems suspension-feeders cerastoderma-edule seasonal-variation trophic ecology carbon isotopes mytilus-edulis [SDV]Life Sciences [q-bio] [SDE]Environmental Sciences Emmery, A. Alunno Bruscia, M. Bataillé, Marie-Paule, Kooijman, S. A. L. M. Lefebvre, Sebastien Dynamics of stable isotope ratios (d13c and d15n) in different organs of crassostrea gigas at two contrasted ecosystems : insights from growth and food sources |
topic_facet |
marennes-oleron bay crepidula-fornicata reproductive-cycle coastal ecosystems suspension-feeders cerastoderma-edule seasonal-variation trophic ecology carbon isotopes mytilus-edulis [SDV]Life Sciences [q-bio] [SDE]Environmental Sciences |
description |
International audience We studied the influence of food availability on the growth (whole body and organs) of the oyster Crassostrea gigas and on the dynamics of their delta C-13 and delta N-15 respective values. Juvenile oysters originating from Arcachon Bay were transplanted to two contrasting ecosystems, Baie des Veys (BDV) and Rade de Brest (RDB), for a 1-yr growth survey. In BDV, chlorophyll-a concentrations ([Chl-a]) was 3 times higher than in RDB on average, which accounts for the differences in oyster growth between BDV and RDB. Differences in trophic conditions could also explain the differences in C/N ratios and delta C-13 values between sites partly due to higher investment in gametogenesis for the oysters in BDV than in RDB; these differences widened when lipid normalized delta C-13 values were used. Oysters clearly selected microalgae as the main food source, and especially phytoplankton. Gi (Gills), Mu (Muscle) and Re (remaining organs) clearly exhibited different isotopic enrichment levels, with delta(Mu) > delta(Gi) > delta(Re) regardless of C or N elements, culture sites and seasons. delta N-15 discrimination between organs was rather equivalent between sites. These results would benefit from an experiment under controlled conditions along a calibration of the lipid normalization to correct delta C-13 values in bivalves. |
author2 |
Université de Caen Normandie (UNICAEN) Normandie Université (NU) Vrije Universiteit Amsterdam Amsterdam (VU) Université du Littoral Côte d'Opale (ULCO) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Ecophysiologie Végétale, Agronomie et Nutritions (EVA) Normandie Université (NU)-Normandie Université (NU)-Institut National de la Recherche Agronomique (INRA) Region Basse-Normandie and Ifremer |
format |
Article in Journal/Newspaper |
author |
Emmery, A. Alunno Bruscia, M. Bataillé, Marie-Paule, Kooijman, S. A. L. M. Lefebvre, Sebastien |
author_facet |
Emmery, A. Alunno Bruscia, M. Bataillé, Marie-Paule, Kooijman, S. A. L. M. Lefebvre, Sebastien |
author_sort |
Emmery, A. |
title |
Dynamics of stable isotope ratios (d13c and d15n) in different organs of crassostrea gigas at two contrasted ecosystems : insights from growth and food sources |
title_short |
Dynamics of stable isotope ratios (d13c and d15n) in different organs of crassostrea gigas at two contrasted ecosystems : insights from growth and food sources |
title_full |
Dynamics of stable isotope ratios (d13c and d15n) in different organs of crassostrea gigas at two contrasted ecosystems : insights from growth and food sources |
title_fullStr |
Dynamics of stable isotope ratios (d13c and d15n) in different organs of crassostrea gigas at two contrasted ecosystems : insights from growth and food sources |
title_full_unstemmed |
Dynamics of stable isotope ratios (d13c and d15n) in different organs of crassostrea gigas at two contrasted ecosystems : insights from growth and food sources |
title_sort |
dynamics of stable isotope ratios (d13c and d15n) in different organs of crassostrea gigas at two contrasted ecosystems : insights from growth and food sources |
publisher |
HAL CCSD |
publishDate |
2016 |
url |
https://hal.inrae.fr/hal-02630078 |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_source |
ISSN: 0240-8759 Vie et Milieu / Life & Environment https://hal.inrae.fr/hal-02630078 Vie et Milieu / Life & Environment, Observatoire Océanologique - Laboratoire Arago, 2016, 66 (3-4), pp.261-273 |
op_relation |
hal-02630078 https://hal.inrae.fr/hal-02630078 PRODINRA: 451614 WOS: 000401091600004 |
_version_ |
1766394003675152384 |