EStimating Contaminants tRansfers Over Complex food webs (ESCROC): An innovative Bayesian method for estimating POP's biomagnification in aquatic food webs
| dc.rights.license | open | en_US |
| hal.structure.identifier | Ecosystèmes aquatiques et changements globaux [UR EABX] | |
| dc.contributor.author | BALLUTAUD, Marine | |
| hal.structure.identifier | Ecosystèmes aquatiques et changements globaux [UR EABX] | |
| dc.contributor.author | DROUINEAU, Hilaire | |
| hal.structure.identifier | Ecosystèmes aquatiques et changements globaux [UR EABX] | |
| dc.contributor.author | CARASSOU, Laure | |
| hal.structure.identifier | Environnements et Paléoenvironnements OCéaniques [EPOC] | |
| dc.contributor.author | MUNOZ, Gabriel | |
| hal.structure.identifier | Ecosystèmes aquatiques et changements globaux [UR EABX] | |
| dc.contributor.author | CHEVILLOT, Xavier | |
| hal.structure.identifier | Environnements et Paléoenvironnements OCéaniques [EPOC] | |
| dc.contributor.author | LABADIE, Pierre | |
| hal.structure.identifier | Environnements et Paléoenvironnements OCéaniques [EPOC] | |
| dc.contributor.author | BUDZINSKI, Hélène
ORCID: 0000-0003-1028-9154 IDREF: 070478090 | |
| hal.structure.identifier | Ecosystèmes aquatiques et changements globaux [UR EABX] | |
| dc.contributor.author | LOBRY, Jérémy | |
| dc.date.accessioned | 2024-02-27T13:31:58Z | |
| dc.date.available | 2024-02-27T13:31:58Z | |
| dc.date.issued | 2019-03 | |
| dc.identifier.issn | 0048-9697 | en_US |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/188459 | |
| dc.description.abstractEn | Pollution greatly impacts ecosystems health and associated ecological functions. Persistent Organic Pollutants (POPs) are among the most studied contaminants due to their persistence, bioaccumulation, and toxicity potential. Biomagnification is often described using the estimation of a Trophic Magnification Factor (TMF). This estimate is based on the relationship between contamination levels of the species and their trophic level. However, while the estimation can be significantly biased in relation to multiple sources of uncertainty (e.g. species physiology, measurement errors, food web complexity), usual TMF estimation methods typically do not allow accounting for these potential biases. More accurate and reliable assessment tool of TMFs and their associated uncertainty are therefore needed in order to appropriately guide chemical pollution management. The present work proposes a relevant and innovative TMF estimation method accounting for its many variability sources. The ESCROC model (EStimating Contaminants tRansfers Over Complex food webs), which is implemented in a Bayesian framework, allows for a more reliable and rigorous assessment of contaminants trophic magnification, in addition to accurate estimations of isotopes trophic enrichment factors and their associated uncertainties in food webs. Similar to classical mixing models used in food web investigations, ECSROC computes diet composition matrices using isotopic composition data while accounting for contamination data, leading to more robust food web descriptions.As a demonstration of the practical application of the model, ESCROC was implemented to revisit the trophic biomagnification of 5 polyfluoroalkyl substances (PFAS) in a complex estuarine food web (the Gironde, SW France). In addition to the TMF estimate and 95% confidence intervals, the model provided biomagnification probabilities associated to the investigated contaminants—for instance, 92% in the case of perfluorooctane sulfonate (PFOS)—that can be interpreted in terms of risk assessment in a precautionary approach, which should prove useful to environmental managers. | |
| dc.description.sponsorship | COntinental To coastal Ecosystems: evolution, adaptability and governance - ANR-10-LABX-0045 | en_US |
| dc.language.iso | EN | en_US |
| dc.subject.en | GEOF | |
| dc.subject.en | Trophic magnification | |
| dc.subject.en | Food webs | |
| dc.subject.en | Bayesian mixing model | |
| dc.subject.en | Organic micropollutants | |
| dc.subject.en | Stable isotopes | |
| dc.subject.en | Gironde estuary | |
| dc.title.en | EStimating Contaminants tRansfers Over Complex food webs (ESCROC): An innovative Bayesian method for estimating POP's biomagnification in aquatic food webs | |
| dc.type | Article de revue | en_US |
| dc.identifier.doi | 10.1016/j.scitotenv.2018.12.058 | en_US |
| dc.subject.hal | Chimie | en_US |
| dc.subject.hal | Sciences de l'environnement/Biodiversité et Ecologie | en_US |
| bordeaux.journal | Science of the Total Environment | en_US |
| bordeaux.page | 638-649 | en_US |
| bordeaux.volume | 658 | en_US |
| bordeaux.hal.laboratories | EPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805 | en_US |
| bordeaux.institution | Université de Bordeaux | en_US |
| bordeaux.institution | CNRS | en_US |
| bordeaux.team | LPTC | en_US |
| bordeaux.peerReviewed | oui | en_US |
| bordeaux.inpress | non | en_US |
| bordeaux.import.source | hal | |
| hal.identifier | hal-03272618 | |
| hal.version | 1 | |
| hal.popular | non | en_US |
| hal.audience | Internationale | en_US |
| hal.export | false | |
| workflow.import.source | hal | |
| dc.rights.cc | Pas de Licence CC | en_US |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Science%20of%20the%20Total%20Environment&rft.date=2019-03&rft.volume=658&rft.spage=638-649&rft.epage=638-649&rft.eissn=0048-9697&rft.issn=0048-9697&rft.au=BALLUTAUD,%20Marine&DROUINEAU,%20Hilaire&CARASSOU,%20Laure&MUNOZ,%20Gabriel&CHEVILLOT,%20Xavier&rft.genre=article |
Fichier(s) constituant ce document
| Fichiers | Taille | Format | Vue |
|---|---|---|---|
|
Il n'y a pas de fichiers associés à ce document. |
|||