Aragonite saturation state in a tropical coastal embayment dominated by phytoplankton blooms (Guanabara Bay – Brazil)
| dc.rights.license | open | en_US |
| hal.structure.identifier | Departamento de Geoquímica | |
| dc.contributor.author | COTOVICZ, Luiz | |
| hal.structure.identifier | Departamento de Geoquímica | |
| dc.contributor.author | KNOPPERS, Bastiaan | |
| hal.structure.identifier | Programa de Pós-Graduação em Geografia - Universidade Federal do Rio Grande do Sul [POSGEA-UFRGS] | |
| dc.contributor.author | BRANDINI, Nilva | |
| hal.structure.identifier | Environnements et Paléoenvironnements OCéaniques [EPOC] | |
| dc.contributor.author | POIRIER, Dominique | |
| hal.structure.identifier | Departamento de Geoquímica | |
| dc.contributor.author | COSTA SANTOS, Suzan | |
| hal.structure.identifier | Environnements et Paléoenvironnements OCéaniques [EPOC] | |
| hal.structure.identifier | Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques [LOCEAN] | |
| dc.contributor.author | ABRIL, Gwenaël | |
| dc.date.accessioned | 2024-04-24T09:12:44Z | |
| dc.date.available | 2024-04-24T09:12:44Z | |
| dc.date.issued | 2018-04 | |
| dc.identifier.issn | 0025-326X | en_US |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/199296 | |
| dc.description.abstractEn | The dynamics of the aragonite saturation state (Ωarag) were investigated in the eutrophic coastal waters of Guanabara Bay (RJ-Brazil). Large phytoplankton blooms stimulated by a high nutrient enrichment promoted the production of organic matter with strong uptake of dissolved inorganic carbon (DIC) in surface waters, lowering the concentrations of dissolved carbon dioxide (CO2aq), and increasing the pH, Ωarag and carbonate ion (CO32 −), especially during summer. The increase of Ωarag related to biological activity was also evident comparing the negative relationship between the Ωarag and the apparent utilization of oxygen (AOU), with a very close behavior between the slopes of the linear regression and the Redfield ratio. The lowest values of Ωarag were found at low-buffered waters in regions that receive direct discharges from domestic effluents and polluted rivers, with episodic evidences of corrosive waters (Ωarag < 1). This study showed that the eutrophication controlled the variations of Ωarag in Guanabara Bay. | |
| dc.language.iso | EN | en_US |
| dc.subject.en | Carbonate chemistry | |
| dc.subject.en | Coastal eutrophication | |
| dc.subject.en | Coastal acidification | |
| dc.subject.en | Phytoplankton blooms | |
| dc.subject.en | Carbonate chemistry | |
| dc.title.en | Aragonite saturation state in a tropical coastal embayment dominated by phytoplankton blooms (Guanabara Bay – Brazil) | |
| dc.type | Article de revue | en_US |
| dc.identifier.doi | 10.1016/j.marpolbul.2017.10.064 | en_US |
| dc.subject.hal | Physique [physics]/Physique [physics]/Géophysique [physics.geo-ph] | en_US |
| dc.subject.hal | Sciences de l'environnement/Milieux et Changements globaux | en_US |
| bordeaux.journal | Marine Pollution Bulletin | en_US |
| bordeaux.page | 729 - 739 | en_US |
| bordeaux.volume | 129 | en_US |
| bordeaux.hal.laboratories | EPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805 | en_US |
| bordeaux.issue | 2 | 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 | hal | |
| hal.identifier | hal-01835874 | |
| 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=Marine%20Pollution%20Bulletin&rft.date=2018-04&rft.volume=129&rft.issue=2&rft.spage=729%20-%20739&rft.epage=729%20-%20739&rft.eissn=0025-326X&rft.issn=0025-326X&rft.au=COTOVICZ,%20Luiz&KNOPPERS,%20Bastiaan&BRANDINI,%20Nilva&POIRIER,%20Dominique&COSTA%20SANTOS,%20Suzan&rft.genre=article |
Fichier(s) constituant ce document
| Fichiers | Taille | Format | Vue |
|---|---|---|---|
|
Il n'y a pas de fichiers associés à ce document. |
|||