Spatiotemporal changes in surface sediment characteristics and benthic macrofauna composition off the Rhône River in relation with its hydrological regime
| dc.rights.license | open | en_US |
| hal.structure.identifier | Environnements et Paléoenvironnements OCéaniques [EPOC] | |
| dc.contributor.author | BONIFACIO, Paulo | |
| dc.contributor.author | BOURGEOIS, Solveig | |
| dc.contributor.author | LABRUNE, Celine | |
| dc.contributor.author | AMOUROUX, Jean Michel | |
| dc.contributor.author | ESCOUBEYROU, Karine | |
| dc.contributor.author | BUSCAIL, Roselyne | |
| hal.structure.identifier | Environnements et Paléoenvironnements OCéaniques [EPOC] | |
| dc.contributor.author | ROMERO RAMIREZ, Alicia | |
| dc.contributor.author | LANTOINE, François | |
| dc.contributor.author | VETION, Gilles | |
| hal.structure.identifier | Environnements et Paléoenvironnements OCéaniques [EPOC] | |
| dc.contributor.author | BICHON, Sabrina | |
| dc.contributor.author | DESMALADES, Martin | |
| dc.contributor.author | RIVIERE, Beatrice | |
| hal.structure.identifier | Environnements et Paléoenvironnements OCéaniques [EPOC] | |
| dc.contributor.author | DEFLANDRE, Bruno | |
| hal.structure.identifier | Environnements et Paléoenvironnements OCéaniques [EPOC] | |
| dc.contributor.author | GREMARE, Antoine | |
| dc.date.accessioned | 2025-02-21T13:13:46Z | |
| dc.date.available | 2025-02-21T13:13:46Z | |
| dc.date.issued | 2014-12 | |
| dc.identifier.issn | 0272-7714 | en_US |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/205106 | |
| dc.description.abstractEn | The consequences of changes in the water flow of the Rhône River on surface sediment characteristics and benthic macrofauna composition were assessed within 3 distinct areas: (1) the delta front, (2) the prodelta, and (3) the distal zone. Five stations were sampled during or closely after: (1) an oceanic flood (April 2007), (2) a generalized flood (May 2008), (3) a Cevenol flood (December 2008), and (4) a dry period (July 2011). Measurements of sediment characteristics included granulometry (D0.5), bulk descriptors of sedimentary organics (OC, TN and THAA), descriptors of labile components of sedimentary organics (chloropigments, EHAA), and both descriptors of origin (Chl-b/Chl-a, C/N) and lability (Chl-a/(Chl-a+Phaeo-a), EHAA/THAA) of sedimentary organics. Sediment Profile Images were collected during April 2007, May 2008 and July 2011. Temporal changes in both sedimentary organics and benthic macrofauna were more important in the delta front and the prodelta than in the distal zone. Bulk characteristics of sedimentary organics presented decreasing inshore/offshore gradients during both April 2007 and July 2011 but not during May and December 2008. There were significant temporal changes in EHAA/THAA at all stations. Changes in benthic macrofauna composition differed between: (1) the delta front and the prodelta, and (2) the distal zone. In the former area, the dry period was associated with the establishment of a mature community characterized by high abundances and species richness. The best description of spatiotemporal changes in benthic macrofauna composition by surface sediment characteristics was obtained using D0.5, Chl-b/Chl-a, Chl-a/(Chl-a+Phaeo-a) and EHAA, which supports the role of the quality of sedimentary organics in controlling benthic macrofauna composition. | |
| dc.description.sponsorship | Climate and human - induced alterations in carbon cycling at the river-sea connection | en_US |
| dc.language.iso | EN | en_US |
| dc.subject.en | Mediterranean Sea | |
| dc.subject.en | Rhône River | |
| dc.subject.en | Floods | |
| dc.subject.en | Temporal variations | |
| dc.subject.en | Particulate organic matter | |
| dc.subject.en | Zoobenthos | |
| dc.title.en | Spatiotemporal changes in surface sediment characteristics and benthic macrofauna composition off the Rhône River in relation with its hydrological regime | |
| dc.type | Article de revue | en_US |
| dc.identifier.doi | 10.1016/j.ecss.2014.10.011 | en_US |
| dc.subject.hal | Sciences de l'environnement | en_US |
| bordeaux.journal | Estuarine, Coastal and Shelf Science | en_US |
| bordeaux.page | 196-209 | en_US |
| bordeaux.volume | 151 | en_US |
| bordeaux.hal.laboratories | EPOC | en_US |
| bordeaux.institution | Université de Bordeaux | en_US |
| bordeaux.institution | CNRS | en_US |
| bordeaux.team | ECOBIOC | en_US |
| bordeaux.peerReviewed | oui | en_US |
| bordeaux.inpress | non | en_US |
| bordeaux.import.source | crossref | |
| hal.popular | non | en_US |
| hal.audience | Internationale | en_US |
| hal.export | false | |
| workflow.import.source | crossref | |
| 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=Estuarine,%20Coastal%20and%20Shelf%20Science&rft.date=2014-12&rft.volume=151&rft.spage=196-209&rft.epage=196-209&rft.eissn=0272-7714&rft.issn=0272-7714&rft.au=BONIFACIO,%20Paulo&BOURGEOIS,%20Solveig&LABRUNE,%20Celine&AMOUROUX,%20Jean%20Michel&ESCOUBEYROU,%20Karine&rft.genre=article |