Different food particle sources in the pearl oyster Pinctada margaritifera and its epibionts
WOS:000706788500001 International audience Suspended bivalve culture (e.g. longlines) transfers benthic biomass including bivalves and various epibionts toward the water column, creating strong trophic interactions with the planktonic compartment. Trophic interactions are of central interest for eco...
Published in: | Aquaculture Reports |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2021
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Online Access: | https://hal.umontpellier.fr/hal-03475050 https://hal.umontpellier.fr/hal-03475050/document https://hal.umontpellier.fr/hal-03475050/file/1-s2.0-S2352513421003033-main.pdf https://doi.org/10.1016/j.aqrep.2021.100887 |
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ftunivtoulon:oai:HAL:hal-03475050v1 2024-04-14T08:10:44+00:00 Different food particle sources in the pearl oyster Pinctada margaritifera and its epibionts Lacoste, Élise Raimbault, Patrick Gaertner-Mazouni, Nabila MARine Biodiversity Exploitation and Conservation (UMR MARBEC) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS) Institut méditerranéen d'océanologie (MIO) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS) Ecosystèmes Insulaires Océaniens (UMR 241) (EIO) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de la Polynésie Française (UPF)-Institut Louis Malardé Papeete (ILM) Institut de Recherche pour le Développement (IRD) Université de la Polynésie Française (UPF) 2021 https://hal.umontpellier.fr/hal-03475050 https://hal.umontpellier.fr/hal-03475050/document https://hal.umontpellier.fr/hal-03475050/file/1-s2.0-S2352513421003033-main.pdf https://doi.org/10.1016/j.aqrep.2021.100887 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.aqrep.2021.100887 hal-03475050 https://hal.umontpellier.fr/hal-03475050 https://hal.umontpellier.fr/hal-03475050/document https://hal.umontpellier.fr/hal-03475050/file/1-s2.0-S2352513421003033-main.pdf doi:10.1016/j.aqrep.2021.100887 http://creativecommons.org/licenses/by-nc-nd/ info:eu-repo/semantics/OpenAccess ISSN: 2352-5134 Aquaculture Reports https://hal.umontpellier.fr/hal-03475050 Aquaculture Reports, 2021, 21, pp.100887. ⟨10.1016/j.aqrep.2021.100887⟩ size organic-matter crassostrea-gigas pacific oyster crepidula-fornicata Isotopic niche Trophic interactions french-polynesia isotope fractionation lagoon tuamotu archipelago Pearl oysters phytoplankton biomass seasonal-variation Stable isotope ratio analysis Suspension feeders [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.MCG]Environmental Sciences/Global Changes info:eu-repo/semantics/article Journal articles 2021 ftunivtoulon https://doi.org/10.1016/j.aqrep.2021.100887 2024-03-21T16:15:29Z WOS:000706788500001 International audience Suspended bivalve culture (e.g. longlines) transfers benthic biomass including bivalves and various epibionts toward the water column, creating strong trophic interactions with the planktonic compartment. Trophic interactions are of central interest for ecologists, yet not well understood in coastal lagoon food webs, especially in tropical areas. Using stable isotope (SI) analyses, this study explored the trophic relationships between marine particulate organic matter (POM), pearl oysters and epibionts, in two contrasted production areas in French Polynesia. Different size classes of POM (0.7-2 mu m, 2-20 mu m, 20-80 mu m, 80-250 mu m and \textgreater250 mu m) were well discriminated both by their delta C-13 and delta N-15 signature and results showed a low dietary overlap between pearl oysters and epibionts, likely due to assimilation of large particles in greater proportion by pearl oysters. Pearl oyster diet may vary in time in relation with variations of the basal trophic resource and selective feeding, such that their isotopic signature is more variable compared with that of epibionts. Pearl oysters and epibionts might alter nutrient cycling in a different way as reflected by their different tissue C:N. Article in Journal/Newspaper Crassostrea gigas Pacific oyster Université de Toulon: HAL Pacific Aquaculture Reports 21 100887 |
institution |
Open Polar |
collection |
Université de Toulon: HAL |
op_collection_id |
ftunivtoulon |
language |
English |
topic |
size organic-matter crassostrea-gigas pacific oyster crepidula-fornicata Isotopic niche Trophic interactions french-polynesia isotope fractionation lagoon tuamotu archipelago Pearl oysters phytoplankton biomass seasonal-variation Stable isotope ratio analysis Suspension feeders [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.MCG]Environmental Sciences/Global Changes |
spellingShingle |
size organic-matter crassostrea-gigas pacific oyster crepidula-fornicata Isotopic niche Trophic interactions french-polynesia isotope fractionation lagoon tuamotu archipelago Pearl oysters phytoplankton biomass seasonal-variation Stable isotope ratio analysis Suspension feeders [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.MCG]Environmental Sciences/Global Changes Lacoste, Élise Raimbault, Patrick Gaertner-Mazouni, Nabila Different food particle sources in the pearl oyster Pinctada margaritifera and its epibionts |
topic_facet |
size organic-matter crassostrea-gigas pacific oyster crepidula-fornicata Isotopic niche Trophic interactions french-polynesia isotope fractionation lagoon tuamotu archipelago Pearl oysters phytoplankton biomass seasonal-variation Stable isotope ratio analysis Suspension feeders [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.MCG]Environmental Sciences/Global Changes |
description |
WOS:000706788500001 International audience Suspended bivalve culture (e.g. longlines) transfers benthic biomass including bivalves and various epibionts toward the water column, creating strong trophic interactions with the planktonic compartment. Trophic interactions are of central interest for ecologists, yet not well understood in coastal lagoon food webs, especially in tropical areas. Using stable isotope (SI) analyses, this study explored the trophic relationships between marine particulate organic matter (POM), pearl oysters and epibionts, in two contrasted production areas in French Polynesia. Different size classes of POM (0.7-2 mu m, 2-20 mu m, 20-80 mu m, 80-250 mu m and \textgreater250 mu m) were well discriminated both by their delta C-13 and delta N-15 signature and results showed a low dietary overlap between pearl oysters and epibionts, likely due to assimilation of large particles in greater proportion by pearl oysters. Pearl oyster diet may vary in time in relation with variations of the basal trophic resource and selective feeding, such that their isotopic signature is more variable compared with that of epibionts. Pearl oysters and epibionts might alter nutrient cycling in a different way as reflected by their different tissue C:N. |
author2 |
MARine Biodiversity Exploitation and Conservation (UMR MARBEC) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS) Institut méditerranéen d'océanologie (MIO) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS) Ecosystèmes Insulaires Océaniens (UMR 241) (EIO) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de la Polynésie Française (UPF)-Institut Louis Malardé Papeete (ILM) Institut de Recherche pour le Développement (IRD) Université de la Polynésie Française (UPF) |
format |
Article in Journal/Newspaper |
author |
Lacoste, Élise Raimbault, Patrick Gaertner-Mazouni, Nabila |
author_facet |
Lacoste, Élise Raimbault, Patrick Gaertner-Mazouni, Nabila |
author_sort |
Lacoste, Élise |
title |
Different food particle sources in the pearl oyster Pinctada margaritifera and its epibionts |
title_short |
Different food particle sources in the pearl oyster Pinctada margaritifera and its epibionts |
title_full |
Different food particle sources in the pearl oyster Pinctada margaritifera and its epibionts |
title_fullStr |
Different food particle sources in the pearl oyster Pinctada margaritifera and its epibionts |
title_full_unstemmed |
Different food particle sources in the pearl oyster Pinctada margaritifera and its epibionts |
title_sort |
different food particle sources in the pearl oyster pinctada margaritifera and its epibionts |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.umontpellier.fr/hal-03475050 https://hal.umontpellier.fr/hal-03475050/document https://hal.umontpellier.fr/hal-03475050/file/1-s2.0-S2352513421003033-main.pdf https://doi.org/10.1016/j.aqrep.2021.100887 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Crassostrea gigas Pacific oyster |
genre_facet |
Crassostrea gigas Pacific oyster |
op_source |
ISSN: 2352-5134 Aquaculture Reports https://hal.umontpellier.fr/hal-03475050 Aquaculture Reports, 2021, 21, pp.100887. ⟨10.1016/j.aqrep.2021.100887⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.aqrep.2021.100887 hal-03475050 https://hal.umontpellier.fr/hal-03475050 https://hal.umontpellier.fr/hal-03475050/document https://hal.umontpellier.fr/hal-03475050/file/1-s2.0-S2352513421003033-main.pdf doi:10.1016/j.aqrep.2021.100887 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.aqrep.2021.100887 |
container_title |
Aquaculture Reports |
container_volume |
21 |
container_start_page |
100887 |
_version_ |
1796308390312411136 |