Consulta: creatorFacets:"Brach-papa, Christophe"
Registros recuperados: 35
Data/hora: 06/06/2024 05:32:25

Patterns of trace metal bioaccumulation and trophic transfer in a phytoplankton-zooplankton-small pelagic fish marine food web
Provedor de dados: 5
Autores: Chouvelon, Tiphaine; Strady, Emilie; Harmelin-vivien, Mireille; Radakovitch, Olivier; Brach-papa, Christophe; Crochet, Sylvette; Knoery, Joel; Rozuel, Emmanuelle; Thomas, Bastien; Tronczynski, Jacek; Chiffoleau, Jean-francois.
Trace metal contamination in the European sardine and anchovy food web was investigated in the Gulf of Lions, NW Mediterranean Sea, including seawater and size fractions of plankton. The results highlighted: i) higher and more variable concentrations in the smaller plankton size classes for all metals except cadmium; ii) higher concentrations in anchovy versus sardine for all elements except lead; iii) different patterns of metal bioaccumulation through the food web: cobalt, nickel, copper, silver, lead and zinc displayed continuously decreasing concentrations (with the exception of increased zinc in fish only), while mercury concentrations dropped considerably in larger plankton size classes and rose significantly in fish. Lastly, cadmium concentrations...
Tipo: Text
Palavras-chave: Inorganic elements; Seawater; Size-classed plankton; Sardina pilchardus; Engraulis encrasicolus; Mediterranean Sea.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00511/62286/67906.pdf

Evaluation de la qualité des zones de production conchylicoles . Départements des Bouches du Rhône, du Var et de la Haute Corse. Edition 2019
Provedor de dados: 5
Autores: Marco-miralles, Francoise; Brach-papa, Christophe.
Après un rappel des objectifs, du fonctionnement et de la méthode d’interprétation des résultats du réseau de contrôle microbiologique REMI, ce rapport effectue un bilan national et décrit le programme annuel des départements des Bouches-du-Rhône, du Var et de la Haute-Corse. Il présente l’ensemble des résultats obtenus, en particulier l’estimation de la qualité des zones de production de coquillages classées et l’évolution de leur qualité pour la période 2016-2018.
Tipo: Text
Palavras-chave: REMI; E. coli; Contamination bactériologique des coquillages; Classement sanitaire des zones de production; Région PACA (Provence-Alpes-Côte d’Azur).
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00494/60524/63987.pdf

Qualité du Milieu Marin Littoral. Bulletin de la surveillance 2019. Départements des Bouches‐du‐Rhône, de la Haute‐Corse et du Var
Provedor de dados: 5
Autores: Brach-papa, Christophe; Marco-miralles, Francoise.
Le laboratoire Environnement Ressources Provence Azur Corse est chargé de la mise en oeuvre des réseaux de surveillance opérés par l’Ifremer dans les régions Sud PACA (départements des Bouches du Rhône, du Var et des Alpes‐Maritimes) et Corse (départements de Corse du Sud et de Haute Corse). En 2019, pour la région Sud PACA, sept points de prélèvement REPHY, quatre points REMI et sept points ROCCH ont été suivis. Sur le littoral Corse, quatre points de prélèvements REPHY, un point REMI et quatre points ROCCH ont fait l’objet d’une surveillance. Le point REPHY « Diana mer » situé sur le littoral Corse n’est échantillonné qu’occasionnellement, il ne sera donc pas présenté dans ce rapport. Afin d'être en cohérence avec la réalité « terrain » lors de la pêche...
Tipo: Text
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00645/75665/76531.pdf

3D-printed flow system for determination of lead in natural waters
Provedor de dados: 5
Autores: Mattio, Elodie; Robert-peillard, Fabien; Branger, Catherine; Puzio, Kinga; Margaillan, Andre; Brach-papa, Christophe; Knoery, Joel; Boudenne, Jean-luc; Coulomb, Bruno.
The development of 3D printing in recent years opens up a vast array of possibilities in the field of flow analysis. In the present study, a new 3D-printed flow system has been developed for the selective spectrophotometric determination of lead in natural waters. This system was composed of three 3D-printed units (sample treatment, mixing coil and detection) that might have been assembled without any tubing to form a complete flow system. Lead was determined in a two-step procedure. A preconcentration of lead was first carried out on TrisKem Pb Resin located in a 3D-printed column reservoir closed by a tapped screw. This resin showed a high extraction selectivity for lead over many tested potential interfering metals. In a second step, lead was eluted by...
Tipo: Text
Palavras-chave: Lead determination; 3D-printed MPFS system; Stereolithography; Natural waters.
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00377/48770/49290.pdf

TOPHYPAC. Tolérance des communautés phytoplanctoniques aux phytosanitaires dans le panache de la Charente. Programme Évaluation et réduction des risques liés à l’utilisation des Pesticides
Provedor de dados: 5
Autores: Stachowski-haberkorn, Sabine; Guesdon, Stephane; Bechemin, Christian; Chiffoleau, Jean-francois; Brach-papa, Christophe; Soudant, Philippe; Beker, Beatriz; Jadas-hécart, Alain.
TOPHYPAC is a field study that was conducted in the Charente river estuary (Marennes-Oléron bay). The main goal was to assess the possible impact of chemical contamination with copper and pesticides on phytoplankton communities. Physical, chemical (nutrients, metals and pesticides) and biological (phytoplankton community) parameters were monitored in the field during three years, from 2011 to 2014. In 2012 and 2013, field sampling was coupled with experimental exposure of phytoplankton communities to copper and to an herbicide cocktail, after transportation to the lab: the effects were assessed using photosynthesis endpoint and cellular densities. TOPHYPAC allowed to set the framework of Charente estuary contamination with pesticides: herbicides glyphosate...
Tipo: Text
Palavras-chave: Continuum eau douce/eau côtière; Pesticides; Métaux; Communautés phytoplanctoniques; Efficacité de photosynthèse; PICT; Tolérance; Cytométrie en flux; Toxicité chronique; Freshwater/coastal water continuum; Pesticides; Metals; Phytoplankton communities; Photosynthesis efficiency; PICT; Tolerance; Flow cytometry; Chronic toxicity.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00300/41115/40289.pdf

Oligotrophy as a major driver of mercury bioaccumulation in medium-to high-trophic level consumers: A marine ecosystem-comparative study
Provedor de dados: 5
Autores: Chouvelon, Tiphaine; Cresson, Pierre; Bouchoucha, Marc; Brach-papa, Christophe; Bustamante, Paco; Crochet, Sylvette; Marco-miralles, Francoise; Thomas, Bastien; Knoery, Joel.
Mercury (Hg) is a global contaminant of environmental concern. Numerous factors influencing its bioaccumulation in marine organisms have already been described at both individual and species levels (e.g., size or age, habitat, trophic level). However, few studies have compared the trophic characteristics of ecosystems to explain underlying mechanisms of differences in Hg bioaccumulation and biomagnification among food webs and systems. The present study aimed at investigating the potential primary role of the trophic status of systems on Hg bioaccumulation and biomagnification in temperate marine food webs, as shown by their medium-to high-trophic level consumers. It used data from samples collected at the shelf-edge (i.e. offshore organisms) in two...
Tipo: Text
Palavras-chave: Biomagnifying metal; Bioaccumulation; Trophic status; Ecosystem productivity; Temperate systems.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00410/52111/52936.pdf

Spatial and temporal distribution of mercury and methylmercury in bivalves from the French coastline
Provedor de dados: 5
Autores: Briant, Nicolas; Chouvelon, Tiphaine; Martinez, Laura; Brach-papa, Christophe; Chiffoleau, Jean-francois; Savoye, N.; Sonke, J.; Knoery, Joel.
Marine mercury (Hg) concentrations have been monitored in the French coastline for the last half a century using bivalves. The analyses presented in this study concerned 192 samples of bivalves (mussels: Mytilus edulis and Mytilus galloprovincialis and oysters: Crassostrea gigas and Isognomon alatus) from 77 sampling stations along the French coast and in the French Antilles sea. The goals of this study were to assess MeHg levels in various common bivalves from French coastline, and to identify possible geographic, taxonomic or temporal variations of concentrations. We show that the evolution of methylmercury (MeHg) concentrations covary with total mercury (HgT) concentrations. Moreover, in most of the study sites, HgT concentrations have not decreased...
Tipo: Text
Palavras-chave: Mercury; Methylmercury; France; Bivalves; Speciation.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00353/46465/46398.pdf

Trace metal concentrations in the muscle of seven marine species: Comparison between the Gulf of Lions (North-West Mediterranean Sea) and the Bay of Biscay (North-East Atlantic Ocean)
Provedor de dados: 5
Autores: Mille, Tiphaine; Cresson, Pierre; Chouvelon, Tiphaine; Bustamante, Paco; Brach-papa, Christophe; Bruzac, Sandrine; Rozuel, Emmanuelle; Bouchoucha, Marc.
Concentrations of 6 trace metals (Ag, Cd, Cu, Ni, Pb, Zn) in the muscle of 2 sharks (Galeus melastomus and Scyliorhinus canicula), 4 teleosts (Helicolenus dactylopterus, Lepidorhombus boscii, Micromesistius poutassou and Phycis blennoides) and 1 crustacean (Nephrops norvegicus) were compared between the Bay of Biscay (Atlantic Ocean) and the Gulf of Lions (Mediterranean Sea). Although average concentrations and the trace element pollution index were generally higher in the Gulf of Lions, significant differences between the two ecosystems were only found for Zn for Helicolenus dactylopterus, and for Ag and Cu for the crustacean N. norvegicus. Moreover, some relationships between trophic level or size and metal concentrations were found for these two...
Tipo: Text
Palavras-chave: Inorganic elements; Contamination; Bioaccumulation; Fish; Shark; Norway lobster.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00448/55958/57497.pdf

SCOTTTI (2018-2019) : Etude des Sources des COntaminants et de leurs Transferts vers le réseau Trophique par des Traceurs Innovants
Provedor de dados: 5
Autores: Knoery, Joel; Briant, Nicolas; Chouvelon, Tiphaine; Gonzalez, Jean-louis; Ponzevera, Emmanuel; Brach-papa, Christophe; Brochen, Michelle; Bruzac, Sandrine; Crochet, Sylvette; De Vogue, Benoist; Marco-miralles, Francoise; Ravel, Christophe; Sireau, Teddy; Thomas, Bastien.
Ce rapport présente les résultats de l’étude exploratoire SCOTTTI soutenue par l’Agence de l’Eau Rhône Méditerranée Corse. Ce travail vise à étudier les sources de contaminants et leurs transferts au sein des réseaux trophiques des zones littorales par l’utilisation de traceurs et d’outils innovants à partir d’une application au site atelier de la rade de Toulon. Les travaux engagés se décomposent en 3 volets. Le premier (réseaux trophiques, RT) vise à tracer le passage des contaminants métalliques entre les différents compartiments biogéochimiques de la rade de Toulon, et aussi à en caractériser les teneurs spécifiques en utilisant des traceurs et marqueurs du fonctionnement des RT (combinaison de l’utilisation des profils lipidiques...
Tipo: Text
Palavras-chave: Rade de Toulon contaminants (Cu; Pb; Hg) isotopie du cuivre isotopie du mercure transferts trophiques.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00495/60677/64193.pdf

Effect of local hydroclimate on phytoplankton groups in the Charente estuary
Provedor de dados: 5
Autores: Guesdon, Stephane; Stachowski-haberkorn, Sabine; Lambert, Christophe; Beker, Beatriz; Brach-papa, Christophe; Auger, Dominique; Bechemin, Christian.
This study aimed to describe seasonal variations of phytoplankton abundances in relation to the physical and chemical (nutrients and metals) environment under the influence of freshwater input in the Charente river estuary (Marennes-Oléron bay, France) over three years, from 2011 to 2014. Phytoplankton abundances were determined using microscopy and flow cytometry. Considering high frequency temperature and salinity data, breakpoints in each series led to the identification of two local hydroclimatic periods: the first (2011 and early 2012) being warmer and higher in salinity than the second (from spring 2012 to the beginning of 2014). A multiblock PLS analysis highlighted the significant contribution of the physical environment (temperature, salinity and...
Tipo: Text
Palavras-chave: Hydroclimate; Estuary; Phytoplankton; Size composition; Nutrients; Trace metals.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00349/46005/45674.pdf

Modified 3D-printed device for mercury determination in waters
Provedor de dados: 5
Autores: Mattio, Elodie; Ollivier, Nadia; Robert-peillard, Fabien; Di Rocco, Robert; Branger, Catherine; Margaillan, Andre; Brach-papa, Christophe; Knoery, Joel; Bonne, Damien; Boudenne, Jean-luc; Coulomb, Bruno.
3D printing technology is increasingly used in flow analysis, to develop low cost and tailor-made devices. The possibility of grafting specific molecules onto 3D printed parts offers new perspectives for the development of flow systems. In this study, a MPFS system including a dicarboxylate 1,5-diphenyl-3-thiocarbazone grafted 3D-printed device has been developed for mercury determination. For this purpose, the surface of 3D-printed cuboids was first modified with amine functional groups and then grafted with dicarboxylate 1,5-diphenyl-3-thiocarbazone. This new grafted device resulted in selective mercury preconcentration with extraction and elution yields higher than 90% even at high sampling flow rates. The detection can then be carried out in two ways:...
Tipo: Text
Palavras-chave: Stereolithography Poly(methylmethacrylate) grafting Dicarboxylate 1; 5-diphenyl-3-thiocarbazone Multi pumping flow system Mercury.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00505/61682/65631.pdf

Copper, zinc and lead isotope signatures of sediments from a mediterranean coastal bay impacted by naval activities and urban sources
Provedor de dados: 5
Autores: Ferreira Araujo, Daniel; Ponzevera, Emmanuel; Briant, Nicolas; Knoery, Joel; Bruzac, Sandrine; Sireau, Teddy; Brach-papa, Christophe.
Toulon bay is severely impacted by metal contamination induced by past and recent naval activities. In this work, Cu, Zn and Pb isotope compositions and elemental concentrations of fifty-five surface sediments were determined in order to map the spatial distribution of anthropogenic and natural sources along this land-sea continuum. Two sub-systems of Toulon Bay, the Small and Large bays, showed well-marked patterns on metal contamination levels and isotope signatures for Cu and Pb. The Small bay had the highest metal concentrations, and displayed average Pb and Cu isotope compositions of 1.1664 ± 0.0043 (1s, expressed as 206Pb/207Pb ratios) and −0.17 ± 0.19‰ (1s, expressed as δ65CuNIST values), respectively. It contrasted with the Large bay, with moderate...
Tipo: Text
Palavras-chave: Metal isotopes; Isotope tracers; Geochemical isotopes; Environmental pollution; Coastal pollution; Toulon bay.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00566/67784/67226.pdf

Synthèse de polymère à empreintes ioniques du plomb (II)
Provedor de dados: 5
Autores: Puzio, K; Margaillan, A; Robert-peillard, F; Boudenne, Jl; Mattio, E; Brach-papa, Christophe; Knoery, Joel; Coulomb, B; Branger, C.
Tipo: Text
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00357/46806/46674.pdf

3D-printed lab-on-valve for fluorescent determination of cadmium and lead in water
Provedor de dados: 5
Autores: Mattio, Elodie; Robert-peillard, Fabien; Vassalo, Laurent; Branger, Catherine; Margaillan, Andre; Brach-papa, Christophe; Knoery, Joel; Boudenne, Jean-luc; Coulomb, Bruno.
In recent years, the development of 3D printing in flow analysis has allowed the creation of new systems with various applications. Up to now, 3D printing was mainly used for the manufacture of small units such as flow detection cells, preconcentration units or mixing systems. In the present study, a new 3D printed lab-on-valve system was developed to selectively quantify lead and cadmium in water. Different technologies were compared for lab-on-valve 3D printing. Printed test units have shown that stereolithography or digital light processing are satisfactory techniques for creating complex lab-on-valve units. The lab-on-valve system was composed of two columns, eight peripheral ports and a central port, and a coil integrating baffles to increase mixing...
Tipo: Text
Palavras-chave: Stereolithography; Digital light processing; LOV-MSFIA; Natural waters.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00427/53874/54932.pdf

Etudes sanitaires du cordon du Jaï et de l'Etang de Berre. Département des Bouches du Rhône. Rapport provisoire.
Provedor de dados: 5
Autores: Marco-miralles, Francoise; Brach-papa, Christophe.
Suite à la demande d’exploitation des zones du Cordon du Jaï et de l’Etang de Berre par les professionnels, la Direction Départementale des Territoires et de la Mer des Bouches du Rhône (DDTM 13) a sollicité l’Ifremer pour la réalisation d’une étude de zone en vue du classement des zones de production de coquillages pour le groupe 2 (bivalves fouisseurs) « Etang de Berre » et « Cordon du Jaï ». En raison de la proximité géographique de ces deux zones, une seule étude a été réalisée par le Laboratoire Environnement Ressources Provence Azur Corse (LER-PAC). Celle-ci, menée en collaboration avec le GIPREB, a bénéficié d’un financement DGAL. La stratégie d’échantillonnage de cette étude de zone a été déterminée sur la base des résultats d’une étude de dossier...
Tipo: Text
Palavras-chave: Etude sanitaire; REMI; Contamination bactériologique des coquillages; E. Coli; Contaminants chimiques; Cordon du Jaï; Etang de Berre; Bivalve fouisseur.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00376/48712/49096.pdf

Effets de l'hydroclimat local sur les groupes de phytoplancton dans l'estuaire de la Charente
Provedor de dados: 5
Autores: Guesdon, Stephane; Stachowski-haberkorn, Sabine; Lambert, Christophe; Beker, Beatriz; Brach-papa, Christophe; Auger, Dominique; Bechemin, Christian.
Cette étude s’inscrit dans le cadre du projet TOPHYPAC (2011-2014) financé par le programme “Pesticides” du Ministère de l’Écologie, du Développement durable et de l’Énergie. Ce travail vise à décrire les variations saisonnières des abondances de phytoplancton en lien avec l'environnement physique et chimique (nutriments et métaux) de l'estuaire de la Charente de 2011 à 2014. À partir des données d'abondances de groupes phytoplanctoniques déterminés par microscopie et par cytométrie de flux, les contributions relatives des variables environnementales sur la dynamique du phytoplancton ont été évaluées : dans ce but, une analyse PLS multibloc a été réalisée. Celle-ci souligne une contribution importante de l'environnement physique (température, salinité et...
Tipo: Text
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00361/47173/47139.pdf

20 ans de suivi de la contamination chimique des eaux côtières méditerranéennes. Résultats &amp; perspectives
Provedor de dados: 5
Autores: Bouchoucha, Marc; Tomasino, Corinne; Amouroux, Isabelle; Andral, Bruno; Brach-papa, Christophe; Briand, Marine; Buchet, Remi; Delmas, Lucile; Galgani, François; Gonzalez, Jean-louis; Grouhel-pellouin, Anne; Mauffret, Aourell; Mille, Tiphaine; Munaron, Dominique; Ponzevera, Emmanuel; Wessel, Nathalie; Boissery, Pierre.
Ce rapport fait le bilan de la surveillance de la contamination chimique opérée par l’Ifremer, en partenariat avec l’agence de l’eau Rhône Méditerranée Corse, entre 1998 et 2018. Il présente sur la forme de graphiques et de cartes les principaux résultats obtenus durant cette période ainsi que l’évolution des méthodes et des stratégies de surveillance des eaux côtières de Méditerranée.
Tipo: Text
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00673/78554/80744.pdf

Qualité du Milieu Marin Littoral. Bulletin de la surveillance 2017. Départements des Bouches du Rhône, du Var, des Alpes Maritimes et de Haute-Corse
Provedor de dados: 5
Autores: Marco-miralles, Francoise; Orsoni, Valerie; Brach-papa, Christophe.
Le laboratoire Environnement Ressources Provence Azur Corse est chargé de la mise en œuvre des réseaux de surveillance opérés par l’Ifremer dans les régions PACA (départements des Bouches du Rhône, du Var et Alpes-Maritimes) et Corse (départements de Corse du Sud et de Haute Corse). Pour la région PACA, en 2017, sept points REPHY, quatre points REMI et six points ROCCH ont été suivis. Sur le littoral corse, quatre points de prélèvements REPHY, un point de prélèvements REMI et quatre points ROCCH ont fait l’objet d’une surveillance. Le point REPHY « Diana mer » situé sur le littoral corse n’est échantillonné qu’occasionnellement, il ne sera donc pas dans ce rapport. La production de coquillage a été suspendue dans l’étang d’Urbino depuis avril 2017. Ce...
Tipo: Text
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00467/57907/60227.pdf

Growth, condition and metal concentration in juveniles of two Diplodus species in ports
Provedor de dados: 5
Autores: Bouchoucha, Marc; Brach-papa, Christophe; Gonzalez, Jean-louis; Lenfant, P.; Darnaude, A. M.
High abundances of juvenile fish in certain ports suggest they might provide alternative nursery habitats for several species. To further investigate this possibility, post-settlement growth, metal uptake and body condition were estimated in 127 juveniles of two seabream species, collected in 2014–15, inside and outside the highly polluted ports of the Bay of Toulon. This showed that differences in local pollution levels (here in Hg, Cu, Pb and Zn) are not consistently mirrored within fish flesh. Muscle metal concentrations, below sanitary thresholds for both species, were higher in ports for Cu, Pb and V only. Otherwise, fish muscle composition principally differed by species or by year. Juvenile growth and condition were equivalent at all sites. Higher...
Tipo: Text
Palavras-chave: Coastal areas; Nursery habitats; Fish; Contamination; Otoliths.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00408/51932/52609.pdf

Integrated monitoring of chemicals and their effects on four sentinel species, Limanda limanda, Platichthys flesus, Nucella lapillus and Mytilus sp, in Seine Bay: A key step towards applying biological effects to monitoring
Provedor de dados: 5
Autores: Burgeot, Thierry; Akcha, Farida; Menard, Dominique; Robinson, Craig; Loizeau, Veronique; Brach-papa, Christophe; Martinez-gomez, Concepcion; Le Goff, Jeremie; Budzinski, Helene; Le Menach, Karine; Cachot, Jerome; Minier, Christophe; Broeg, Katja; Hylland, Ketil.
The International workshop on Integrated Assessment of CONtaminants impacts on the North sea (ICON) provided a framework to validate the application of chemical and biological interpretation thresholds (BACs and EACs) in the Seine Bay in France. Bioassays (oyster larval anomalies, Corophium arenarium toxicity assay and DR Calux) for sediment and biomarkers: ethoxyresorufin-O-deethylase (EROD) activity, acetylcholinesterase (AChE) activity, lysosomal membrane stability (LMS), DNA strand breaks using the comet assay, DNA adducts, micronucleus (MN), PAH metabolites, intersex and fish external pathologies were analyzed in four marine sentinel species (Platichthys flesus, Limanda limanda, Mytilus sp. and Nucella lapilus). Polycyclic aromatic hydrocarbons...
Tipo: Text
Palavras-chave: Biomarkers; Bioassays; Chemical contamination; Integrated monitoring in chemistry and biology; Local study; Large geographical scale.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00357/46789/46655.pdf

Evidencing the Impact of Coastal Contaminated Sediments on Mussels Through Pb Stable Isotopes Composition
Provedor de dados: 5
Autores: Huy Dang, Duc; Schafer, Jörg; Brach-papa, Christophe; Lenoble, Veronique; Durrieu, Gael; Dutruch, Lionel; Chiffoleau, Jean-francois; Gonzalez, Jean-louis; Blanc, Gerard; Mullot, Jean-ulrich; Mounier, Stephane; Garnier, Cedric.
Heavily contaminated sediments are a serious concern for ecosystem quality, especially in coastal areas, where vulnerability is high due to intense anthropogenic pressure. Surface sediments (54 stations), 50 cm interface cores (five specific stations), river particles, coal and bulk Pb plate from past French Navy activities, seawater and mussels were collected in Toulon Bay (NW Mediterranean Sea). Lead content and Pb stable isotope composition have evidenced the direct impact of sediment pollution stock on both the water column quality and the living organisms, through the specific Pb isotopic signature in these considered compartments. The history of pollution events including past and present contaminant dispersion in Toulon Bay were also demonstrated by...
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00288/39884/38624.pdf

Evaluation de la qualité des zones de production conchylicole. Région PACA (Provence-Alpes-Côte d' Azur). Edition 2017
Provedor de dados: 5
Autores: Marco-miralles, Francoise; Brach-papa, Christophe.
Après un rappel des objectifs, du fonctionnement et de la méthode d’interprétation des résultats du réseau de contrôle microbiologique REMI, ce rapport effectue un bilan national et décrit le programme annuel de la Région PACA (Provence-Alpes-Côte d’Azur). Il présente l’ensemble des résultats obtenus, en particulier l’estimation de la qualité des zones de production de coquillages classées et l’évolution de leur qualité.
Tipo: Text
Palavras-chave: REMI; E. Coli; Contamination bactériologique des coquillages; Classement sanitaire des zones de production; Région PACA (Provence-Alpes-Côte d’Azur).
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00388/49967/50543.pdf

Chemical contaminants (trace metals, persistent organic pollutants) in albacore tuna from western Indian and south-eastern Atlantic Oceans: Trophic influence and potential as tracers of populations
Provedor de dados: 5
Autores: Chouvelon, Tiphaine; Brach-papa, Christophe; Auger, Dominique; Bodin, Nathalie; Bruzac, Sandrine; Crochet, Sylvette; Degroote, Maxime; Hollanda, Stephanie J.; Hubert, Clarisse; Knoery, Joel; Munschy, Catherine; Puech, Alexis; Rozuel, Emmanuelle; Thomas, Bastien; West, Wendy; Bourjea, Jerome; Nikolic, Natacha.
Albacore tuna (Thunnus alalunga) is a highly commercial fish species harvested in the world's Oceans. Identifying the potential links between populations is one of the key tools that can improve the current management across fisheries areas. In addition to characterising populations' contamination state, chemical compounds can help refine foraging areas, individual flows and populations' structure, especially when combined with other intrinsic biogeochemical (trophic) markers such as carbon and nitrogen stable isotopes. This study investigated the bioaccumulation of seven selected trace metals – chromium, nickel, copper (Cu), zinc (Zn), cadmium (Cd), mercury (Hg) and lead – in the muscle of 443 albacore tunas, collected over two seasons and/or years in the...
Tipo: Text
Palavras-chave: Top predator; Bioaccumulation; Inorganic elements; Organic contaminants; Stable isotopes; Intrinsic markers.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00384/49532/51152.pdf

Biomonitoring along the french coastline: could mercury isotopic composition indicate a temporal change in hg reaching the coastal zone?
Provedor de dados: 5
Autores: Briant, Nicolas; Chouvelon, Tiphaine; Brach-papa, Christophe; Chiffoleau, Jean-francois; Savoye, Nicolas; Sonke, Jeroen; Knoery, Joel.
Mercury (Hg) is a natural element toxic to all living organisms. Its ocean biogeochemical cycle is dominated by atmospheric deposition, which human activities contribute to disrupt signi cantly, and to a lesser extent by riverine discharge. This element is bioamplifed and bioaccumulated in marine food webs. since mercury concentrations in some coastal animal species of high trophic level approach sanitary thresholds, understanding biogeochemical processes and mechanisms leading to these elevated Hg concentrations becomes important. The stable isotopic geochemistry of metal is indeed a very promising way to trace processes and transfers from one mercury biogeochemical reservoir to another (Sonke and Blum, 2013). The stable isotopes of Hg undergo...
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00394/50561/51253.pdf

Particles transformation in estuaries: Fe, Mn and REE signatures through the Loire Estuary
Provedor de dados: 5
Autores: Thibault De Chanvalon, A.; Metzger, E.; Mouret, A.; Knoery, Joel; Chiffoleau, Jean-francois; Brach-papa, Christophe.
During their transfer across estuaries, particles endure numerous cycles of deposition-resuspension accompanied by several redox oscillations. These oscillations are likely to modify the particles content of redox sensitive metals such as Fe, Mn and two rare earth elements (REE): Ce and Eu. The present paper focuses on the fate of particles originating from the Loire Estuary by the study of chemical composition changes of both total and ascorbate-extracted phases. Transformations of particles buried in the sediment are estimated from sediment cores sampled in an estuarine intertidal mudflat Changes affecting particles that are transferred to the ocean are evaluated by comparing the composition of suspended particulate matter (SPM) from riverine time series...
Tipo: Text
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00367/47848/47935.pdf

Identification d'espèces phytoplanctoniques dans un prélèvement d'eau de mer à un épisode d'eau suite à un épisode d'eau colorée au niveau de la "Plage des Pins" à Toulon
Provedor de dados: 5
Autores: Marco-miralles, Francoise; Brach-papa, Christophe.
Tipo: Text
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00585/69688/67564.pdf

Projet GERMON. Structure génétique et migration du thon Germon
Provedor de dados: 5
Autores: Nikolic, Natacha; Puech, Alexis; Chouvelon, Tiphaine; Munschy, Catherine; Bodin, Nathalie; Brach-papa, Christophe; Potier, Michel; West, Wendy; Knoery, Joel; Zudaire, Iker; Dhurmeea, Zahirah; Degroote, Maxime; Cedras, Maria; Evano, Hugues; Bourjea, Jerome.
The GERMON project had several aims i) to understand the populations’ structure between albacore tuna southwest of the Indian Ocean and southeast Atlantic, ii) to determine the origin of juveniles observed in South Africa iii) to improve the understanding of the biology field (Size/Size and Size/Weight; reproduction and feeding area; trophic linkages) and iv) to initiate work on chemical analyzes and adaptation of the albacore species to its environment. These aims have been held and the results allow a better understanding of the management albacore. A general summary of results is presented in Part 9.
Tipo: Text
Palavras-chave: Germon; Thunnus alalunga; Génétique; Stock; Structure; Connectivité; Chimie; Reproduction; Alimentation; Habitat; Albacore; Thunnus alalunga; Genetic; Stock; Structure; Connectivity; Chemical; Reproduction; Feeding behavior; Habitat.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00293/40461/39152.pdf

Assessment of the metal contamination evolution in the Loire estuary using Cu and Zn stable isotopes and geochemical data in sediments
Provedor de dados: 5
Autores: Ferreira Araujo, Daniel; Ponzevera, Emmanuel; Briant, Nicolas; Knoery, Joel; Sireau, Teddy; Mojtahid, Meryem; Metzger, Edouard; Brach-papa, Christophe.
In this work, a multi-elemental approach combining Cu and Zn stable isotopes is used to assess the metal contamination evolution in the Loire estuary bulk sediments. Elemental geochemical data indicate an increase of metal concentrations from the beginning of the industrial period peaking in the 1990s, followed by an attenuation of metal contamination inputs to the estuary. Zinc isotope compositions suggest a binary mixing process between Zn derived from terrigenous material and multi-urban anthropogenic sources. Copper isotope systematics indicate a single natural dominant source represented by weathered silicate particles from soils and rocks. This work demonstrates the applicability of Zn isotopes to identify anthropogenic Zn sources in coastal systems,...
Tipo: Text
Palavras-chave: Coastal pollution; Coastal biogeochemistry; Geochemical tracers; Metal isotopes; Trace metal; Anthropogenic contamination.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00490/60188/67760.pdf

Platinum in sediments and mussels from the northwestern Mediterranean coast: temporal and spatial aspects
Provedor de dados: 5
Autores: Abdou, Melina; Schafer, Jorg; Hu, Ruoyu; Gil-diaz, Teba; Garnier, Cedric; Brach-papa, Christophe; Chiffoleau, Jean-francois; Charmasson, Sabine; Giner, Franck; Dutruch, Lionel; Blanc, Gerard.
Platinum (Pt) is considered a Technology Critical Element (TCE) and an emerging metallic contaminant with increasing release into the environment. Gaps in knowledge and understanding of environmental levels, fate and effects of Pt still exist, especially in the marine environment. This work presents Pt concentrations in the northwestern Mediterranean coast including: (i) temporal variability from sediment cores and farmed mussels in the Toulon Bay (historically affected by intense human activities) and (ii) spatial distribution from recent wild mussels collected along ∼ 300 km coastline with contrasting ecosystems (including natural reserves), quantified using voltammetry and inductively coupled plasma-mass spectrometry. The historical (&gt; 100 years)...
Tipo: Text
Palavras-chave: Platinum; Sediments; Mussels; Biomonitoring; Mediterranean coast.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00460/57134/59055.pdf

Rapport de synthèse de la campagne d'évaluation de la qualité chimique de sédiments (ROCCHSED) 2016 en Méditerranée
Provedor de dados: 5
Autores: Bouchoucha, Marc; Tomasino, Corinne; Brach-papa, Christophe.
En 2016, des prélèvements de de sédiments ont été réalisés sur 54 stations en mer réparties le long de la façade méditerranéenne française au cours de la campagne ROCCHSED 16. Les contaminants organiques et métalliques ont été analysés conformément aux directives réglementaires et aux objectifs de bassin. Les résultats sont fournis dans ce rapport .
Tipo: Text
Palavras-chave: Contamination chimique; Sédiment; Mer Méditerranée; Chemical contamination; Sediment; Mediterranean sea.
Ano: 2018
URL: http://archimer.ifremer.fr/doc/00458/56961/58859.pdf

Expertise de l'Ifremer sur la contamination significative historique en milieu marin, en particulier par des métaux toxiques tels que le mercure et l'arsenic par la société Alteo
Provedor de dados: 5
Autores: Dreves, Luc; Amouroux, Isabelle; Gonzalez, Jean-louis; Knoery, Joel; Andral, Bruno; Chiffoleau, Jean-francois; Brach-papa, Christophe; Claisse, Didier; Burgeot, Thierry.
Expertise réalisée dans le cadre de la saisine, datée du 10 octobre 2014, auprès du PDG de l'Ifremer de la Ministre de l’Écologie, du Développement Durable et de l’Énergie, sur la demande de poursuite de rejet d'effluents industriels liquides en Méditerranée
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00260/37099/35615.pdf

Etudes sanitaires du cordon du Jaï et de l’Etang de Berre. Département des Bouches du Rhône
Provedor de dados: 5
Autores: Marco-miralles, Francoise; Brach-papa, Christophe.
Suite à la demande d’exploitation des zones du Cordon du Jaï et de l’étang de Berre par les professionnels, la Direction Départementale des Territoires et de la Mer des Bouches du Rhône (DDTM 13) a sollicité l’Ifremer pour la réalisation d’une étude de zone en vue du classement des zones de production de coquillages pour le groupe 2 (bivalves fouisseurs) « Etang de Berre » et « Cordon du Jaï ». En raison de la proximité géographique de ces deux zones, une seule étude a été réalisée par le Laboratoire Environnement Ressources Provence Azur Corse (LER-PAC). Celle-ci, menée en collaboration avec le GIPREB, a bénéficié d’un financement DGAL. La stratégie d’échantillonnage de cette étude de zone a été déterminée sur la base des résultats d’une étude de dossier...
Tipo: Text
Palavras-chave: Etude sanitaire; REMI; Contamination bactériologique des coquillages; E. Coli; Contaminants chimiques; Cordon du Jaï; Etang de Berre; Bivalve fouisseur.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00390/50181/50803.pdf

Monitoring of Pb Contamination in Loire Estuary: Trends, Distribution and Isotopic composition
Provedor de dados: 5
Autores: Brach-papa, Christophe; Chiffoleau, Jean-francois; Knoery, Joel; Chouvelon, Tiphaine; Auger, Dominique; Bretaudeau-sanjuan, Jane; Crochet, Sylvette; Rozuel, Emmanuelle; Thomas, Bastien; Vasileva, Emilia; Oriana, Anna Maria.
The Loire River is one of the largest river systems in Western Europe and a major source of continental inputs to the marine environment in the Bay of Biscay. Its catchment area drains agricultural and industrial zones and its estuary is increasingly urbanized. Even if the Loire River is not considered as a highly polluted system, studies have shown estuarine Pb contamination due to industrial inputs and combustion of leaded gasoline until the mid 1990’s. A retrospective study, based on the analysis (Pb levels and isotopic composition) of mussel samples collected by the French mussel watch program (RNO/ROCCH) has highlighted this contamination and its trend between 1985-2005 (Couture et al., 2010). This poster furthers the work initiated by Couture et al....
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00188/29958/28404.pdf

Insights from the spatial and temporal distributions of mercury species and isotopes in bivalves from the french coastline
Provedor de dados: 5
Autores: Briant, Nicolas; Knoery, Joel; Chouvelon, Tiphaine; Brach-papa, Christophe; Chiffoleau, Jean-francois; Savoye, Nicolas; Sonke, Jeroen.
Mercury cycles between atmosphere, terrestrial and aquatic reservoirs through a complex combination of transport and transformation processes, until it is buried in oceanic or terrestrial sediments. Monomethylmercury is the main species bioaccumulated and bioampli ed in the food chain. Knowledge of the origin (continental, oceanicorlocalsediment)ofthisspeciesforthelittoralenvironnment can still be improved. This study focuses on ~200 samples of bivalves (mussels: Mytilus edulis and Mytilus galloprovincialis and oysters: Crassostrea gigas and Isognomon alatus) from ~80 stations along the French coast. The goals of this study were i) to describe Hg levels, speciation and isotopic composition in various bioindicator bivalves from the French coastline, and ii)...
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00394/50562/51254.pdf

Mercury in organisms from the Northwestern Mediterranean slope: Importance of food sources
Provedor de dados: 5
Autores: Cresson, Pierre; Fabri, Marie-claire; Bouchoucha, Marc; Brach-papa, Christophe; Chavanon, Fabienne; Jadaud, Angelique; Knoery, Joel; Marco-miralles, Francoise; Cossa, D.
Mercury (Hg) is a global threat for marine ecosystems, especially within the Mediterranean Sea. The concern is higher for deep-sea organisms, as the Hg concentration in their tissues is commonly high. To assess the influence of food supply at two trophic levels, total Hg concentrations and carbon and nitrogen stable isotope ratios were determined in 7 species (4 teleosts, 2 sharks, and 1 crustacean) sampled on the upper part of the continental slope of the Gulf of Lions (Northwestern Mediterranean Sea), at depths between 284 and 816 m. Mean Hg concentrations ranged from 1.30 ± 0.61 to 7.13 ± 7.09 μg g− 1 dry mass, with maximum values observed for small-spotted catshark Scyliorhinus canicula. For all species except blue whiting Micromesistius poutassou, Hg...
Tipo: Text
Palavras-chave: Continental slope; Trophic webs; Depth; Teleosts; Sharks; Stable isotopes.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00206/31759/30693.pdf