Cadmium pathways in an exploited intertidal ecosystem with chronic cadmium inputs (Marennes-Oléron, Atlantic coast, France)
International audience The Marennes-Oléron Bay is subject to chronic pollution by cadmium (Cd) from the Gironde watershed. An ecosystem approach was used to study the fate of cadmium in the different biological compartments. The median Cd concentration was 0.4 µg g–1 dry weight for the 63 benthic sp...
Published in: | Marine Ecology Progress Series |
---|---|
Main Authors: | , , , , , , |
Other Authors: | , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2006
|
Subjects: | |
Online Access: | https://hal.archives-ouvertes.fr/hal-01855149 https://doi.org/10.3354/meps307101 |
id |
ftccsdartic:oai:HAL:hal-01855149v1 |
---|---|
record_format |
openpolar |
spelling |
ftccsdartic:oai:HAL:hal-01855149v1 2023-05-15T15:46:31+02:00 Cadmium pathways in an exploited intertidal ecosystem with chronic cadmium inputs (Marennes-Oléron, Atlantic coast, France) Pigeot, Jacques Miramand, Pierre Guyot, Thierry Sauriau, Pierre-Guy Fichet, Denis Le Moine, Olivier Huet, Valérie Laboratoire de Biologie et Environnement Marin (LBEM) Université de La Rochelle (ULR) LIttoral ENvironnement et Sociétés - UMRi 7266 (LIENSs) Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS) Centre de Recherche sur les Ecosystèmes Marins et Aquacoles (CREMA) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Agence de l’Eau Adour-Garonne, France, contract no. 98/793 IFREMER CNRS 2006-01-24 https://hal.archives-ouvertes.fr/hal-01855149 https://doi.org/10.3354/meps307101 en eng HAL CCSD Inter Research info:eu-repo/semantics/altIdentifier/doi/10.3354/meps307101 hal-01855149 https://hal.archives-ouvertes.fr/hal-01855149 doi:10.3354/meps307101 ISSN: 0171-8630 EISSN: 1616-1599 Marine Ecology Progress Series https://hal.archives-ouvertes.fr/hal-01855149 Marine Ecology Progress Series, Inter Research, 2006, 307, pp.101 - 114. ⟨10.3354/meps307101⟩ Macrophytes Microphytobenthos Macrofauna Cadmium Bioaccumulation Trophic food web Marennes-Oléron Bay [SDE]Environmental Sciences [SDE.MCG]Environmental Sciences/Global Changes [CHIM.INOR]Chemical Sciences/Inorganic chemistry info:eu-repo/semantics/article Journal articles 2006 ftccsdartic https://doi.org/10.3354/meps307101 2021-10-24T06:15:53Z International audience The Marennes-Oléron Bay is subject to chronic pollution by cadmium (Cd) from the Gironde watershed. An ecosystem approach was used to study the fate of cadmium in the different biological compartments. The median Cd concentration was 0.4 µg g–1 dry weight for the 63 benthic species measured. When combined with the respective biomasses for the different species studied, we estimated that 7 kg of Cd is partitioned into the soft tissues of the benthic species in the bay. The majority of this cadmium was distributed between primary producers, mainly microphytobenthos (40%), and suspension-feeders, mainly oysters (40%). All other benthic species measured were associated with negligible masses of Cd. Two trophic levels contained 98% of the Cd: 3 kg was partitioned into primary producers (of which 77% is associated with the microphytobenthos) and 3.2 kg of Cd was distributed among all suspension feeders. The carnivores, including scavengers, concentrated less than 0.2 kg of Cd, suggesting an absence of biomagnification of Cd in the trophic food web of the bay. The microphytobenthic compartment was estimated to control the largest quantity of Cd (ca. 188 kg yr–1), suggesting an important role for the microphytobenthos in the biogeochemical cycle of Cd in the bay. The quantities of Cd associated with annual biological production in other biological compartments were low: 2 kg yr–1 for eelgrass which could represent a vector of Cd transfer to winter populations of Brent geese and 1.4 kg yr–1 for all suspension feeders, principally the cultivated Pacific oysters (64%) representing a vector of Cd transfer to humans. An ecosystem-wide budget for the quantities of Cd present in all the biological and physical compartments showed that the majority of Cd (1 t) is trapped in the upper 5 cm of the bay sediments, representing a potential risk for the oyster and shellfish cultivation in the bay. Article in Journal/Newspaper brent geese Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Pacific Marine Ecology Progress Series 307 101 114 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
Macrophytes Microphytobenthos Macrofauna Cadmium Bioaccumulation Trophic food web Marennes-Oléron Bay [SDE]Environmental Sciences [SDE.MCG]Environmental Sciences/Global Changes [CHIM.INOR]Chemical Sciences/Inorganic chemistry |
spellingShingle |
Macrophytes Microphytobenthos Macrofauna Cadmium Bioaccumulation Trophic food web Marennes-Oléron Bay [SDE]Environmental Sciences [SDE.MCG]Environmental Sciences/Global Changes [CHIM.INOR]Chemical Sciences/Inorganic chemistry Pigeot, Jacques Miramand, Pierre Guyot, Thierry Sauriau, Pierre-Guy Fichet, Denis Le Moine, Olivier Huet, Valérie Cadmium pathways in an exploited intertidal ecosystem with chronic cadmium inputs (Marennes-Oléron, Atlantic coast, France) |
topic_facet |
Macrophytes Microphytobenthos Macrofauna Cadmium Bioaccumulation Trophic food web Marennes-Oléron Bay [SDE]Environmental Sciences [SDE.MCG]Environmental Sciences/Global Changes [CHIM.INOR]Chemical Sciences/Inorganic chemistry |
description |
International audience The Marennes-Oléron Bay is subject to chronic pollution by cadmium (Cd) from the Gironde watershed. An ecosystem approach was used to study the fate of cadmium in the different biological compartments. The median Cd concentration was 0.4 µg g–1 dry weight for the 63 benthic species measured. When combined with the respective biomasses for the different species studied, we estimated that 7 kg of Cd is partitioned into the soft tissues of the benthic species in the bay. The majority of this cadmium was distributed between primary producers, mainly microphytobenthos (40%), and suspension-feeders, mainly oysters (40%). All other benthic species measured were associated with negligible masses of Cd. Two trophic levels contained 98% of the Cd: 3 kg was partitioned into primary producers (of which 77% is associated with the microphytobenthos) and 3.2 kg of Cd was distributed among all suspension feeders. The carnivores, including scavengers, concentrated less than 0.2 kg of Cd, suggesting an absence of biomagnification of Cd in the trophic food web of the bay. The microphytobenthic compartment was estimated to control the largest quantity of Cd (ca. 188 kg yr–1), suggesting an important role for the microphytobenthos in the biogeochemical cycle of Cd in the bay. The quantities of Cd associated with annual biological production in other biological compartments were low: 2 kg yr–1 for eelgrass which could represent a vector of Cd transfer to winter populations of Brent geese and 1.4 kg yr–1 for all suspension feeders, principally the cultivated Pacific oysters (64%) representing a vector of Cd transfer to humans. An ecosystem-wide budget for the quantities of Cd present in all the biological and physical compartments showed that the majority of Cd (1 t) is trapped in the upper 5 cm of the bay sediments, representing a potential risk for the oyster and shellfish cultivation in the bay. |
author2 |
Laboratoire de Biologie et Environnement Marin (LBEM) Université de La Rochelle (ULR) LIttoral ENvironnement et Sociétés - UMRi 7266 (LIENSs) Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS) Centre de Recherche sur les Ecosystèmes Marins et Aquacoles (CREMA) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Agence de l’Eau Adour-Garonne, France, contract no. 98/793 IFREMER CNRS |
format |
Article in Journal/Newspaper |
author |
Pigeot, Jacques Miramand, Pierre Guyot, Thierry Sauriau, Pierre-Guy Fichet, Denis Le Moine, Olivier Huet, Valérie |
author_facet |
Pigeot, Jacques Miramand, Pierre Guyot, Thierry Sauriau, Pierre-Guy Fichet, Denis Le Moine, Olivier Huet, Valérie |
author_sort |
Pigeot, Jacques |
title |
Cadmium pathways in an exploited intertidal ecosystem with chronic cadmium inputs (Marennes-Oléron, Atlantic coast, France) |
title_short |
Cadmium pathways in an exploited intertidal ecosystem with chronic cadmium inputs (Marennes-Oléron, Atlantic coast, France) |
title_full |
Cadmium pathways in an exploited intertidal ecosystem with chronic cadmium inputs (Marennes-Oléron, Atlantic coast, France) |
title_fullStr |
Cadmium pathways in an exploited intertidal ecosystem with chronic cadmium inputs (Marennes-Oléron, Atlantic coast, France) |
title_full_unstemmed |
Cadmium pathways in an exploited intertidal ecosystem with chronic cadmium inputs (Marennes-Oléron, Atlantic coast, France) |
title_sort |
cadmium pathways in an exploited intertidal ecosystem with chronic cadmium inputs (marennes-oléron, atlantic coast, france) |
publisher |
HAL CCSD |
publishDate |
2006 |
url |
https://hal.archives-ouvertes.fr/hal-01855149 https://doi.org/10.3354/meps307101 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
brent geese |
genre_facet |
brent geese |
op_source |
ISSN: 0171-8630 EISSN: 1616-1599 Marine Ecology Progress Series https://hal.archives-ouvertes.fr/hal-01855149 Marine Ecology Progress Series, Inter Research, 2006, 307, pp.101 - 114. ⟨10.3354/meps307101⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3354/meps307101 hal-01855149 https://hal.archives-ouvertes.fr/hal-01855149 doi:10.3354/meps307101 |
op_doi |
https://doi.org/10.3354/meps307101 |
container_title |
Marine Ecology Progress Series |
container_volume |
307 |
container_start_page |
101 |
op_container_end_page |
114 |
_version_ |
1766381206733062144 |