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Exposure of larvae to thiamethoxam affects the survival and physiology of the honey bee at post-embryonic stages 全文
2017
Tavares, Daiana Antonia | Dussaubat, Claudia | Kretzschmar, Andre | Carvalho, Stephan Malfitano | Silva-Zacarin, Elaine C.M. | Malaspina, Osmar | Bérail, Géraldine | Brunet, Jean-Luc | Belzunces, Luc | Departamento de Biologia ; Universidade Estadual Paulista Júlio de Mesquita Filho = São Paulo State University (UNESP) | Abeilles et Environnement (AE) ; Institut National de la Recherche Agronomique (INRA)-Avignon Université (AU) | Biostatistique et Processus Spatiaux (BioSP) ; Institut National de la Recherche Agronomique (INRA) | Universidade Federal de Lavras = Federal University of Lavras (UFLA) | Universidade Federal de São Carlos [São Carlos] (UFSCar) | Laboratoire de l'Environnement et de l'Alimentation de la Vendée ; Institut National de la Recherche Agronomique (INRA) | Sao Paulo Research Foundation 2013/21634-8 2012/50197-2
Exposure of larvae to thiamethoxam affects the survival and physiology of the honey bee at post-embryonic stages 全文
2017
Tavares, Daiana Antonia | Dussaubat, Claudia | Kretzschmar, Andre | Carvalho, Stephan Malfitano | Silva-Zacarin, Elaine C.M. | Malaspina, Osmar | Bérail, Géraldine | Brunet, Jean-Luc | Belzunces, Luc | Departamento de Biologia ; Universidade Estadual Paulista Júlio de Mesquita Filho = São Paulo State University (UNESP) | Abeilles et Environnement (AE) ; Institut National de la Recherche Agronomique (INRA)-Avignon Université (AU) | Biostatistique et Processus Spatiaux (BioSP) ; Institut National de la Recherche Agronomique (INRA) | Universidade Federal de Lavras = Federal University of Lavras (UFLA) | Universidade Federal de São Carlos [São Carlos] (UFSCar) | Laboratoire de l'Environnement et de l'Alimentation de la Vendée ; Institut National de la Recherche Agronomique (INRA) | Sao Paulo Research Foundation 2013/21634-8 2012/50197-2
Under laboratory conditions, the effects of thiamethoxam were investigated in larvae, pupae and emerging honey bees after exposure at larval stages with different concentrations in the food (0.00001 ng/µL, 0.001 ng/µL and 1.44 ng/µL). Thiamethoxam reduced the survival of larvae and pupae and consequently decreased the percentage of emerging honey bees. Thiamethoxam induced important physiological disturbances. It increased acetylcholinesterase (AChE) activity at all developmental stages and increased glutathione-S-transferase (GST) and carboxylesterase para (CaEp) activities at the pupal stages. For midgut alkaline phosphatase (ALP), no activity was detected in pupae stages, and no effect was observed in larvae and emerging bees. We assume that the effects of thiamethoxam on the survival, emergence and physiology of honey bees may affect the development of the colony. These results showed that attention should be paid to the exposure to pesticides during the developmental stages ofthe honey bee. This study represents the first investigation of the effects of thiamethoxam on the development of A. mellifera following larval exposure.
显示更多 [+] 显示较少 [-]Exposure of larvae to thiamethoxam affects the survival and physiology of the honey bee at post-embryonic stages 全文
2017
Tavares, Daiana Antonia | Dussaubat, Claudia | Kretzschmar, André | Carvalho, Stephan Malfitano | Silva-Zacarin, Elaine C.M. | Malaspina, Osmar | Bérail, Géraldine | Brunet, Jean-Luc | Belzunces, L. P. (Luc P.)
Under laboratory conditions, the effects of thiamethoxam were investigated in larvae, pupae and emerging honey bees after exposure at larval stages with different concentrations in the food (0.00001 ng/μL, 0.001 ng/μL and 1.44 ng/μL). Thiamethoxam reduced the survival of larvae and pupae and consequently decreased the percentage of emerging honey bees. Thiamethoxam induced important physiological disturbances. It increased acetylcholinesterase (AChE) activity at all developmental stages and increased glutathione-S-transferase (GST) and carboxylesterase para (CaEp) activities at the pupal stages. For midgut alkaline phosphatase (ALP), no activity was detected in pupae stages, and no effect was observed in larvae and emerging bees. We assume that the effects of thiamethoxam on the survival, emergence and physiology of honey bees may affect the development of the colony. These results showed that attention should be paid to the exposure to pesticides during the developmental stages of the honey bee. This study represents the first investigation of the effects of thiamethoxam on the development of A. mellifera following larval exposure.
显示更多 [+] 显示较少 [-]Microplastics in livers of European anchovies ( Engraulis encrasicolus , L.) 全文
2017
Collard, France | Gilbert, Bernard | Compère, Philippe | Eppe, Gauthier | Das, Krishna | Jauniaux, Thierry | Parmentier, Eric | Laboratoire Eau Environnement et Systèmes Urbains (LEESU) ; AgroParisTech-École nationale des ponts et chaussées (ENPC)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12) | CART ; Université de Liège = University of Liège = Universiteit van Luik = Universität Lüttich (ULiège) | Université de Liège = University of Liège = Universiteit van Luik = Universität Lüttich (ULiège) | Laboratory of oceanology — MARE center, Université de Liège ; Laboratory of oceanology — MARE center, Université de Liège | Faculté de Médecine Vétérinaire [Liège]
Microplastics in livers of European anchovies ( Engraulis encrasicolus , L.) 全文
2017
Collard, France | Gilbert, Bernard | Compère, Philippe | Eppe, Gauthier | Das, Krishna | Jauniaux, Thierry | Parmentier, Eric | Laboratoire Eau Environnement et Systèmes Urbains (LEESU) ; AgroParisTech-École nationale des ponts et chaussées (ENPC)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12) | CART ; Université de Liège = University of Liège = Universiteit van Luik = Universität Lüttich (ULiège) | Université de Liège = University of Liège = Universiteit van Luik = Universität Lüttich (ULiège) | Laboratory of oceanology — MARE center, Université de Liège ; Laboratory of oceanology — MARE center, Université de Liège | Faculté de Médecine Vétérinaire [Liège]
International audience
显示更多 [+] 显示较少 [-]Microplastics in livers of European anchovies (Engraulis encrasicolus, L.) 全文
2017
Collard, France | Gilbert, Bernard | Compère, Philippe | Eppe, Gauthier | Das, Krishna | Jauniaux, Thierry | Parmentier, Eric
peer reviewed | Microplastics (MPs) are thought to be ingested by a wide range of marine organisms before being excreted. However, several studies in marine organisms from different taxa have shown that MPs and nanoplastics could be translocated in other organs. In this study, we investigated the presence of MPs in the livers of commercial zooplanktivorous fishes collected in the field. The study focuses mainly on the European anchovy Engraulis encrasicolus but concerns also the European pilchard Sardina pilchardus and the Atlantic herring Clupea harengus. Two complementary methodologies were used to attest the occurrence of MPs in the hepatic tissue and to exclude contamination. 1) MPs were isolated by degradation of the hepatic tissue. 2) Cryosections were made on the livers and observed in polarized light microscopy. Both methods separately revealed that MPs, mainly polyethylene (PE), were translocated into the livers of the three clupeid species. In anchovy, 80 per cent of livers contained relatively large MPs that ranged from 124 μm to 438 μm, showing a high level of contamination. Two translocation pathways are hypothesized: (i) large particles found in the liver resulted from the agglomeration of smaller pieces, and/or (ii) they simply pass through the intestinal barrier. Further studies are however required to understand the exact process. © 2017 Elsevier Ltd
显示更多 [+] 显示较少 [-]Microplastics in livers of European anchovies (Engraulis encrasicolus, L.) 全文
2017
Collard, France | Gilbert, Bernard | Compère, Philippe | Eppe, Gauthier | Dāsa, Kr̥shṇā | Jauniaux, Thierry | Parmentier, Eric
Microplastics (MPs) are thought to be ingested by a wide range of marine organisms before being excreted. However, several studies in marine organisms from different taxa have shown that MPs and nanoplastics could be translocated in other organs. In this study, we investigated the presence of MPs in the livers of commercial zooplanktivorous fishes collected in the field. The study focuses mainly on the European anchovy Engraulis encrasicolus but concerns also the European pilchard Sardina pilchardus and the Atlantic herring Clupea harengus. Two complementary methodologies were used to attest the occurrence of MPs in the hepatic tissue and to exclude contamination. 1) MPs were isolated by degradation of the hepatic tissue. 2) Cryosections were made on the livers and observed in polarized light microscopy. Both methods separately revealed that MPs, mainly polyethylene (PE), were translocated into the livers of the three clupeid species. In anchovy, 80 per cent of livers contained relatively large MPs that ranged from 124 μm to 438 μm, showing a high level of contamination. Two translocation pathways are hypothesized: (i) large particles found in the liver resulted from the agglomeration of smaller pieces, and/or (ii) they simply pass through the intestinal barrier. Further studies are however required to understand the exact process.
显示更多 [+] 显示较少 [-]Ecological impacts of atmospheric pollution and interactions with climate change in terrestrial ecosystems of the Mediterranean Basin: Current research and future directions. 全文
2017
Ochoa Hueso, Raúl | Munzi, Silvana | Alonso, Rocío | Arróniz Crespo, María | Avila, Anna | Bermejo, Victoria | Bobbink, Roland | Branquinho, Cristina | Concostrina Zubiri, Laura | Cruz, Cristina | Cruz de Carvalho, Ricardo | Marco, Alessandra de | Dias, Teresa | Elustondo, David | Elvira, S. | Estébanez Pérez, Belén | Fusaro, Lina | Gerosa, Giacomo | Izquieta Rojano, Sheila | Lo Cascio, Mauro | Marzuoli, Riccardo | Matos, Paula | Mereu, Simone | Merino, José | Morillas, Lourdes | Nunes, Alice | Paoletti, Elena | Paoli, Luca | Pinho, Pedro | Rogers, Isabel B. | Santos, Arthur | Sicard, Pierre | Stevens, Carly J. | Theobald, Mark Richard
Ecological impacts of atmospheric pollution and interactions with climate change in terrestrial ecosystems of the Mediterranean Basin: Current research and future directions. 全文
2017
Ochoa Hueso, Raúl | Munzi, Silvana | Alonso, Rocío | Arróniz Crespo, María | Avila, Anna | Bermejo, Victoria | Bobbink, Roland | Branquinho, Cristina | Concostrina Zubiri, Laura | Cruz, Cristina | Cruz de Carvalho, Ricardo | Marco, Alessandra de | Dias, Teresa | Elustondo, David | Elvira, S. | Estébanez Pérez, Belén | Fusaro, Lina | Gerosa, Giacomo | Izquieta Rojano, Sheila | Lo Cascio, Mauro | Marzuoli, Riccardo | Matos, Paula | Mereu, Simone | Merino, José | Morillas, Lourdes | Nunes, Alice | Paoletti, Elena | Paoli, Luca | Pinho, Pedro | Rogers, Isabel B. | Santos, Arthur | Sicard, Pierre | Stevens, Carly J. | Theobald, Mark Richard
Mediterranean Basin ecosystems, their unique biodiversity, and the key services they provide are currently at risk due to air pollution and climate change, yet only a limited number of isolated and geographically-restricted studies have addressed this topic, often with contrasting results. Particularities of air pollution in this region include high O3 levels due to high air temperatures and solar radiation, the stability of air masses, and dominance of dry over wet nitrogen deposition. Moreover, the unique abiotic and biotic factors (e.g., climate, vegetation type, relevance of Saharan dust inputs) modulating the response of Mediterranean ecosystems at various spatiotemporal scales make it difficult to understand, and thus predict, the consequences of human activities that cause air pollution in the Mediterranean Basin
显示更多 [+] 显示较少 [-]Ecological impacts of atmospheric pollution and interactions with climate change in terrestrial ecosystems of the Mediterranean Basin: Current research and future directions 全文
2017
Ochoa-Hueso, Raúl | Munzi, Silvana | Alonso, Rocío | Arróniz-Crespo, María | Avila, Anna | Bermejo, Victoria | Bobbink, Roland | Branquinho, Cristina | Concostrina Zubiri, Laura | Cruz Mínguez, Cristina | Cruz de Carvalho, Ricardo | De Marco, Alessandra | Dias, Teresa | Elustondo, David | Elvira, Susana | Estébanez, Belén | Fusaro, Lina | Gerosa, Giacomo | Izquieta-Rojano, Sheila | Lo Cascio, Mauro | Marzuoli, Riccardo | Matos, Paula | Mereu, Simone | Merino, José | Morillas, Lourdes | Nunes, Alice | Paoletti, Elena | Paoli, Luca | Pinho, Pedro | Rogers, Isabel B. | Santos, Arthur | Sicard, Pierre | Stevens, Carly J. | Theobald, Mark R.
Mediterranean Basin ecosystems, their unique biodiversity, and the key services they provide are currently at risk due to air pollution and climate change, yet only a limited number of isolated and geographically-restricted studies have addressed this topic, often with contrasting results. Particularities of air pollution in this region include high O3 levels due to high air temperatures and solar radiation, the stability of air masses, and dominance of dry over wet nitrogen deposition. Moreover, the unique abiotic and biotic factors (e.g., climate, vegetation type, relevance of Saharan dust inputs) modulating the response of Mediterranean ecosystems at various spatiotemporal scales make it difficult to understand, and thus predict, the consequences of human activities that cause air pollution in the Mediterranean Basin. Therefore, there is an urgent need to implement coordinated research and experimental platforms along with wider environmental monitoring networks in the region. In particular, a robust deposition monitoring network in conjunction with modelling estimates is crucial, possibly including a set of common biomonitors (ideally cryptogams, an important component of the Mediterranean vegetation), to help refine pollutant deposition maps. Additionally, increased attention must be paid to functional diversity measures in future air pollution and climate change studies to establish the necessary link between biodiversity and the provision of ecosystem services in Mediterranean ecosystems. Through a coordinated effort, the Mediterranean scientific community can fill the above-mentioned gaps and reach a greater understanding of the mechanisms underlying the combined effects of air pollution and climate change in the Mediterranean Basin.
显示更多 [+] 显示较少 [-]Ecotoxicoproteomic assessment of the functional alterations caused by chronic metallic exposures in gammarids 全文
2017
Gismondi, E. | Thomé, J.-P. | Urien, N. | Uher, E. | Baiwir, D. | Mazzucchelli, G. | de Pauw, E. | Fechner, L.C. | Lebrun, Jérémie, D. | Freshwater and Oceanic Sciences Unit of reSearch (FOCUS) ; Laboratory of Oceanology ; Université de Liège-Université de Liège | Laboratory of Animal Ecology and Ecotoxicity (LEAE-CART) ; Université de Liège | Université de Liège | Hydrosystèmes et Bioprocédés (UR HBAN) ; Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA) | Mass Spectrometry Laboratory (MS LAB) ; Université de Liège-Centre d'Analyse des Résidus en Traces-Groupe Interdisciplinaire de Génoprotéomique Appliquée
Ecotoxicoproteomic assessment of the functional alterations caused by chronic metallic exposures in gammarids 全文
2017
Gismondi, E. | Thomé, J.-P. | Urien, N. | Uher, E. | Baiwir, D. | Mazzucchelli, G. | de Pauw, E. | Fechner, L.C. | Lebrun, Jérémie, D. | Freshwater and Oceanic Sciences Unit of reSearch (FOCUS) ; Laboratory of Oceanology ; Université de Liège-Université de Liège | Laboratory of Animal Ecology and Ecotoxicity (LEAE-CART) ; Université de Liège | Université de Liège | Hydrosystèmes et Bioprocédés (UR HBAN) ; Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA) | Mass Spectrometry Laboratory (MS LAB) ; Université de Liège-Centre d'Analyse des Résidus en Traces-Groupe Interdisciplinaire de Génoprotéomique Appliquée
Ecotoxicoproteomic assessment of the functional alterations caused by chronic metallic exposures in gammarids 全文
2017
Gismondi, E. | Thomé, J.-P. | Urien, N. | Uher, E. | Baiwir, D. | Mazzucchelli, G. | De Pauw, E. | Fechner, L.C. | Lebrun, J.D.
Very few ecotoxicological studies have been performed on long-term exposure under controlled conditions, hence limiting the assessment of the impact of chronic and diffuse chemical pressures on the health of aquatic organisms. In this study, an ecotoxicoproteomic approach was used to assess the integrated response and possible acclimation mechanisms in Gammarus fossarum following chronic exposures to Cd, Cu or Pb, at environmentally realistic concentrations (i.e. 0.25, 1.5 and 5 μg/L respectively). After 10-week exposure, changes in protein expression were investigated in caeca of control and exposed males. Gel-free proteomic analyses allowed for the identification of 35 proteins involved in various biological functions, for which 23 were significantly deregulated by metal exposures. The protein deregulation profiles were specific to each metal, providing evidence for metal-specific action sites and responses of gammarids. Among the tested metals, Cu was the most toxic in terms of mortality, probably linked with persistent oxidative stress. Moulting and osmoregulation were the major biological functions affected by Cu in the long-term. In Pb-exposed gammarids, significant deregulations of proteins involved in immune response and cytoskeleton were observed. Reproduction appears to be strongly affected in gammarids chronically exposed to Cd or Pb. Besides, modified expressions of several proteins involved in energy transfer and metabolism highlighted important energetic reshuffling to cope with chronic metal exposures. These results support the fact that metallic pressures induce a functional and energetic cost for individuals of G. fossarum with potential repercussions on population dynamics. Furthermore, this ecotoxicoproteomic study offers promising lines of enquiry in the development of new biomarkers that could make evidence of long-term impacts of metals on the health of organisms.
显示更多 [+] 显示较少 [-]Ecotoxicoproteomic assessment of the functional alterations caused by chronic metallic exposures in gammarids 全文
2017
Gismondi, Eric | Thomé, Jean-Pierre | Urien, Nastassia | Uher, Emmanuelle | Baiwir, Dominique | Mazzucchelli, Gabriel | De Pauw, Edwin | Fechner, Lise | Lebrun, Jérémie | FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège
peer reviewed | Very few ecotoxicological studies have been performed on long-term exposure under controlled conditions, hence limiting the assessment of the impact of chronic and diffuse chemical pressures on the health of aquatic organisms. In this study, an ecotoxicoproteomic approach was used to assess the integrated response and possible acclimation mechanisms in Gammarus fossarum following chronic exposures to Cd, Cu or Pb, at environmentally realistic concentrations (i.e. 0.25, 1.5 and 5 µg/L respectively). After 10-week exposure, changes in protein expression were investigated in caeca of control and exposed males. Gel-free proteomic analyses allowed for the identification of 35 proteins involved in various biological functions, for which 23 were significantly deregulated by metal exposures. The protein deregulation profiles were specific to each metal, providing evidence for metal-specific action sites and responses of gammarids. Among the tested metals, Cu was the most toxic in terms of mortality, probably linked with persistent oxidative stress. Moulting and osmoregulation were the major biological functions affected by Cu in the long-term. In Pb-exposed gammarids, significant deregulations of proteins involved in immune response and cytoskeleton were observed. Reproduction appears to be strongly affected in gammarids chronically exposed to Cd or Pb. Besides, modified expressions of several proteins involved in energy transfer and metabolism highlighted important energetic reshuffling to cope with chronic metal exposures. These results support the fact that metallic pressures induce a functional and energetic cost for individuals of G. fossarum with potential repercussions on population dynamics. Furthermore, this ecotoxicoproteomic study offers promising lines of enquiry in the development of new biomarkers that could make evidence of long-term impacts of metals on the health of organisms.
显示更多 [+] 显示较少 [-]Ecotoxicoproteomic assessment of the functional alterations caused by chronic metallic exposures in gammarids 全文
2017
Gismondi, Éric | Thomé, Jean-Pierre | Urien, Nastassia | Uher, Emmanuelle | Baiwir, Dominique | Mazzucchelli, Gabriel | de Pauw, Edwin | Fechner, Lise, C. | Lebrun, Jérémie, D. | Laboratoire des Interactions Ecotoxicologie, Biodiversité, Ecosystèmes (LIEBE) ; Université Paul Verlaine - Metz (UPVM)-Centre National de la Recherche Scientifique (CNRS) | Hydrosystèmes et Bioprocédés (UR HBAN) ; Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA) | Institut National de la Recherche Scientifique [Québec] (INRS) | Fédération Île-de-France de Recherche sur l'Environnement (FIRE) ; Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-AgroParisTech-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) | Mass Spectrometry Laboratory (MS LAB) ; Université de Liège = University of Liège = Universiteit van Luik = Universität Lüttich (ULiège)-Centre d'Analyse des Résidus en Traces-Groupe Interdisciplinaire de Génoprotéomique Appliquée | Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) | ANR-12-ADAP-0003,SequAdapt,Conséquences et mécanismes de l'adaptation à la contamination chimique en Seine(2012)
International audience
显示更多 [+] 显示较少 [-]Biodegradation of polycyclic aromatic hydrocarbons: Using microbial bioelectrochemical systems to overcome an impasse 全文
2017
Kronenberg, Maria | Trably, Eric | Bernet, Nicolas | Steyer, Dominique | Laboratoire de Biotechnologie de l'Environnement [Narbonne] (LBE) ; Institut National de la Recherche Agronomique (INRA)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)
Polycyclic aromatic hydrocarbons (PAHs) are hardly biodegradable carcinogenic organic compounds. Bioremediation is a commonly used method for treating PAH contaminated environments such as soils, sediment, water bodies and wastewater. However, bioremediation has various drawbacks including the low abundance, diversity and activity of indigenous hydrocarbon degrading bacteria, their slow growth rates and especially a limited bioavailability of PAHs in the aqueous phase. Addition of nutrients, electron acceptors or co-substrates to enhance indigenous microbial activity is costly and added chemicals often diffuse away from the target compound, thus pointing out an impasse for the bioremediation of PAHs. A promising solution is the adoption of bioelectrochemical systems. They guarantee a permanent electron supply and withdrawal for microorganisms, thereby circumventing the traditional shortcomings of bioremediation. These systems combine biological treatment with electrochemical oxidation/reduction by supplying an anode and a cathode that serve as an electron exchange facility for the biocatalyst. Here, recent achievements in polycyclic aromatic hydrocarbon removal using bioelectrochemical systems have been reviewed. This also concerns PAH precursors: total petroleum hydrocarbons and diesel. Removal performances of PAH biodegradation in bioelectrochemical systems are discussed, focussing on configurational parameters such as anode and cathode designs as well as environmental parameters like porosity, salinity, adsorption and conductivity of soil and sediment that affect PAH biodegradation in BESs. The still scarcely available information on microbiological aspects of bioelectrochemical PAH removal is summarised here. This comprehensive review offers a better understanding of the parameters that affect the removal of PAHs within bioelectrochemical systems. In addition, future experimental setups are proposed in order to study syntrophic relationships between PAH degraders and exoelectrogens. This synopsis can help as guide for researchers in their choices for future experimental designs aiming at increasing the power densities and PAH biodegradation rates using microbial bioelectrochemistry.
显示更多 [+] 显示较少 [-]Combined effects of temperature and copper and S-metolachlor on embryo-larval development of the Pacific oyster, Crassostrea gigas 全文
2017
Gamain, Perrine | Gonzalez, Patrice | Cachot, Jérôme | Clérandeau, Christelle | Mazzella, Nicolas | Gourves, Pierre Yves | Morin, Bénédicte | Environnements et Paléoenvironnements OCéaniques (EPOC) ; École Pratique des Hautes Études (EPHE) ; Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) | Ecosystèmes aquatiques et changements globaux (UR EABX) ; Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)
Combined effects of temperature and copper and S-metolachlor on embryo-larval development of the Pacific oyster, Crassostrea gigas 全文
2017
Gamain, Perrine | Gonzalez, Patrice | Cachot, Jérôme | Clérandeau, Christelle | Mazzella, Nicolas | Gourves, Pierre Yves | Morin, Bénédicte | Environnements et Paléoenvironnements OCéaniques (EPOC) ; École Pratique des Hautes Études (EPHE) ; Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) | Ecosystèmes aquatiques et changements globaux (UR EABX) ; Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)
[Departement_IRSTEA]Eaux [TR1_IRSTEA]BELCA | International audience | This study evaluates the combined effects of two contaminants (copper and a herbicide S-metolachlor) and temperature on the early life stages of the Pacific oyster Crasssotrea gigas,which is native to Arcachon Bay (southwest France). The responses of D-larvae, obtained fromwild and cultivated oysters,were investigated for one year during the oyster breeding period at different sampling sites and compared with the response of D-larvae from a commercial hatchery. Embryotoxicity was measured by considering the percentage of abnormal D-shaped larvae. Normal development of embryos occurred only from 22 °C to 26 °C. There were synergistic effects of copper at low and high temperatures. Native oysters appear particularly sensitive to an increase in water temperature, suggesting a future increase in the percentage of larval abnormalities as a result of global climate change. Hatchery oysters represent a good alternative model for studying the effects of both pollutants and climate change stressors.
显示更多 [+] 显示较少 [-]Combined effects of temperature and copper and S-metolachlor on embryo-larval development of the Pacific oyster, Crassostrea gigas 全文
2017
Gamain, Perrine | Gonzalez, Patrice | Cachot, Jérôme | Clérandeau, Christelle | Mazzella, Nicolas | Gourves, Pierre Yves | Morin, Bénédicte
This study evaluates the combined effects of two contaminants (copper and a herbicide S-metolachlor) and temperature on the early life stages of the Pacific oyster Crasssotrea gigas, which is native to Arcachon Bay (southwest France). The responses of D-larvae, obtained from wild and cultivated oysters, were investigated for one year during the oyster breeding period at different sampling sites and compared with the response of D-larvae from a commercial hatchery. Embryotoxicity was measured by considering the percentage of abnormal D-shaped larvae. Normal development of embryos occurred only from 22°C to 26°C. There were synergistic effects of copper at low and high temperatures. Native oysters appear particularly sensitive to an increase in water temperature, suggesting a future increase in the percentage of larval abnormalities as a result of global climate change. Hatchery oysters represent a good alternative model for studying the effects of both pollutants and climate change stressors.
显示更多 [+] 显示较少 [-]Environmental exposure to TiO2 nanomaterials incorporated in building material 全文
2017
Bossa, Nathan | Chaurand, Perrine | Levard, Clément | Borschneck, Daniel | Miche, Helene | Vicente, Jérôme | Geantet, Christophe | Aguerre-Chariol, Olivier | Michel, F. Marc | Rose, Jérôme | Institut National de l'Environnement Industriel et des Risques (INERIS) | Centre Européen de Recherche et d'Enseignement des Géosciences de l'Environnement (CEREGE) ; Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) | Institut universitaire des systèmes thermiques industriels (IUSTI) ; Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS) | Institut de recherches sur la catalyse et l'environnement de Lyon (IRCELYON) ; Université Claude Bernard Lyon 1 (UCBL) ; Université de Lyon-Université de Lyon-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS) | ANR-10-EQPX-0039,NanoID,Plateforme d'identification des nanoparticules dédiée à la sécurité(2010) | ANR-11-IDEX-0001,Amidex,INITIATIVE D'EXCELLENCE AIX MARSEILLE UNIVERSITE(2011) | ANR-11-LABX-0064,SERENADE,Vers une conception de nanomatériaux innovants, durables et sûrs(2011)
Environmental exposure to TiO2 nanomaterials incorporated in building material 全文
2017
Bossa, Nathan | Chaurand, Perrine | Levard, Clément | Borschneck, Daniel | Miche, Helene | Vicente, Jérôme | Geantet, Christophe | Aguerre-Chariol, Olivier | Michel, F. Marc | Rose, Jérôme | Institut National de l'Environnement Industriel et des Risques (INERIS) | Centre Européen de Recherche et d'Enseignement des Géosciences de l'Environnement (CEREGE) ; Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) | Institut universitaire des systèmes thermiques industriels (IUSTI) ; Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS) | Institut de recherches sur la catalyse et l'environnement de Lyon (IRCELYON) ; Université Claude Bernard Lyon 1 (UCBL) ; Université de Lyon-Université de Lyon-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS) | ANR-10-EQPX-0039,NanoID,Plateforme d'identification des nanoparticules dédiée à la sécurité(2010) | ANR-11-IDEX-0001,Amidex,INITIATIVE D'EXCELLENCE AIX MARSEILLE UNIVERSITE(2011) | ANR-11-LABX-0064,SERENADE,Vers une conception de nanomatériaux innovants, durables et sûrs(2011)
International audience | Abstract Nanomaterials are increasingly being used to improve the properties and functions of common building materials. A new type of self-cleaning cement incorporating TiO2 nanomaterials (TiO2-NMs) with photocatalytic properties is now marketed. This promising cement might provide air pollution-reducing properties but its environmental impact must be validated. During cement use and aging, an altered surface layer is formed that exhibits increased porosity. The surface layer thickness alteration and porosity increase with the cement degradation rate. The hardened cement paste leaching behavior has been fully documented, but the fate of incorporated TiO2-NMs and their state during/after potential release is currently unknown. In this study, photocatalytic cement pastes with increasing initial porosity were leached at a lab-scale to produce a range of degradation rates concerning the altered layer porosity and thickness. No dissolved Ti was released during leaching, only particulate TiO2-NM release was detected. The extent of release from this batch test simulating accelerated worst-case scenario was limited and ranged from 18.7 ± 2.1 to 33.5 ± 5.1 mg of Ti/m2 of cement after 168 h of leaching. TiO2-NMs released into neutral aquatic media (simulate pH of surface water) were not associated or coated by cement minerals. The TiO2-NM release mechanism is suspected to start from freeing of TiO2-NMs in the altered layer pore network due to partial cement paste dissolution followed by diffusion into the bulk pore solution to the surface. The extent of TiO2-NM release was not solely related to the cement degradation rate.
显示更多 [+] 显示较少 [-]Environmental exposure to TiO2 nanomaterials incorporated in building material 全文
2017
Bossa, Nathan | Chaurand, Perrine | Levard, Clément | Borschneck, Daniel | Miche, Hélène | Vicente, Jérôme | Geantet, Christophe | Aguerre-Chariol, Olivier | Michel, F Marc | Rose, Jerome
Nanomaterials are increasingly being used to improve the properties and functions of common building materials. A new type of self-cleaning cement incorporating TiO2 nanomaterials (TiO2-NMs) with photocatalytic properties is now marketed. This promising cement might provide air pollution-reducing properties but its environmental impact must be validated. During cement use and aging, an altered surface layer is formed that exhibits increased porosity. The surface layer thickness alteration and porosity increase with the cement degradation rate. The hardened cement paste leaching behavior has been fully documented, but the fate of incorporated TiO2-NMs and their state during/after potential release is currently unknown. In this study, photocatalytic cement pastes with increasing initial porosity were leached at a lab-scale to produce a range of degradation rates concerning the altered layer porosity and thickness. No dissolved Ti was released during leaching, only particulate TiO2-NM release was detected. The extent of release from this batch test simulating accelerated worst-case scenario was limited and ranged from 18.7 ± 2.1 to 33.5 ± 5.1 mg of Ti/m2 of cement after 168 h of leaching. TiO2-NMs released into neutral aquatic media (simulate pH of surface water) were not associated or coated by cement minerals. The TiO2-NM release mechanism is suspected to start from freeing of TiO2-NMs in the altered layer pore network due to partial cement paste dissolution followed by diffusion into the bulk pore solution to the surface. The extent of TiO2-NM release was not solely related to the cement degradation rate.
显示更多 [+] 显示较少 [-]LCA of wet-weather emissions of an urban wastewater system: the case of the Greater Paris watershed 全文
2017
Risch, Eva | Gasperi, Johnny | Gromaire, Marie-Christine | Chebbo, Ghassan | Azimi, Sam | Rocher, Vincent | Roux, Philippe, I | Rosenbaum, R.K. | Sinfort, Carole, C. | Pôle ELSA, Environmental Life Cycle and Sustainability Assessment (ELSA) | Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA) | Laboratoire Eau Environnement et Systèmes Urbains (LEESU) ; AgroParisTech-École nationale des ponts et chaussées (ENPC)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12) | SIAAP - Direction du Développement et de la Prospective ; Syndicat interdépartemental pour l'assainissement de l'agglomération parisienne (SIAAP)
International audience
显示更多 [+] 显示较少 [-]Polycyclic aromatic hydrocarbons in PM2.5 and PM10 atmospheric particles in the Metropolitan Area of Costa Rica: Sources, temporal and spatial variations 全文
2017
Solórzano Arias, David | Herrera-Murillo, Jorge | Chaves Villalobos, María | Rojas Marín, José Félix | Beita Guerrero, Víctor Hugo
Polycyclic aromatic hydrocarbons (PAHs) concentrations in PM10 and PM2.5 particles were measured at 14 monitoring sites (12 for PM10 and 2 for PM2.5), located in the Metropolitan Area of Costa Rica, from January to November 2013. High-volume air samplers with pretreated quartz filters were used to collect the particles. The analytical determination was carried out using high-performance liquid chromatography (HPLC). The most abundant PAHs were benzo[a]anthracene, indeno(1,2,3-cd)pyrene, dibenz[a,h]anthracene and acenaphthylene. Ratios obtained by correlating the concentration of some PAHs, both PM10 and PM2.5, suggest that gasoline and diesel vehicles are the main sources in the area being studied. This is consistent with the results obtained when applying the positive matrix factorization (PMF) analysis, since vehicles accounted for 62–74% of total emissions in the area; burning wood fuel was the second source of emissions, contributing between 7 and 15%; and road dust was third, with almost 8%. | Se midieron las concentraciones de hidrocarburos aromáticos policíclicos (HAP) en partículas PM10 y PM2.5 en 14 sitios de monitoreo (12 para PM10 y 2 para PM2.5), ubicados en el Área Metropolitana de Costa Rica, de enero a noviembre de 2013. Alto volumen Se utilizaron muestreadores de aire con filtros de cuarzo pretratados para recoger las partículas. La determinación analítica se realizó mediante cromatografía líquida de alta resolución (HPLC). Los HAP más abundantes fueron benzo [a] antraceno, indeno (1,2,3-cd) pireno, dibenz [a, h] antraceno y acenaftileno. Los ratios obtenidos al correlacionar la concentración de algunos HAP, tanto de PM10 como de PM2,5, sugieren que los vehículos de gasolina y diésel son las principales fuentes en el área de estudio. Esto es consistente con los resultados obtenidos al aplicar el análisis de factorización matricial positiva (PMF), ya que los vehículos representaron 62-74% de las emisiones totales en el área; la quema de leña fue la segunda fuente de emisiones, contribuyendo entre el 7 y el 15%; y el polvo de la carretera ocupó el tercer lugar, con casi el 8%. | Universidad Nacional, Costa Rica | Laboratorio de Análisis Ambiental. Facultad de Ciencias Ambientales. Universidad Nacional, Costa Rica
显示更多 [+] 显示较少 [-]Morphology of the filtration apparatus of three planktivorous fishes and relation with ingested anthropogenic particles 全文
2017
Collard, France | Gilbert, Bernard | Eppe, Gauthier | Roos, Laetitia | Compère, Philippe | Das, Krishna | Parmentier, Eric | MARE - Centre Interfacultaire de Recherches en Océanologie - ULiège | AFFISH-RC - Applied and Fundamental FISH Research Center - ULiège
Morphology of the filtration apparatus of three planktivorous fishes and relation with ingested anthropogenic particles 全文
2017
Collard, France | Gilbert, Bernard | Eppe, Gauthier | Roos, Laetitia | Compère, Philippe | Das, Krishna | Parmentier, Eric | MARE - Centre Interfacultaire de Recherches en Océanologie - ULiège | AFFISH-RC - Applied and Fundamental FISH Research Center - ULiège
peer reviewed | Anthropogenic particles (APs), including microplastics, are ingested by a wide variety of marine organisms. Exposure of Clupeiformes (e.g. herrings, anchovies, sardines) is poorly studied despite their economic and ecological importance. This study aims to describe the morphology of the filtration apparatus of three wild-caught Clupeiformes (Sardina pilchardus, Clupea harengus and Engraulis encrasicolus) and to relate the results to ingested APs. Consequently, the species with the more efficient filtration apparatus will be more likely to ingest APs. We hypothesized that sardines were the most exposed species. The filtration area and particle retention threshold were determined in the three species, with sardines displaying the highest filtration area and the closest gill rakers. Sardines ingested more fibers and smaller fragments, confirming that it is the most efficient filtering species. These two results lead to the conclusion that, among the three studied, the sardine is the species most exposed to APs.
显示更多 [+] 显示较少 [-]Morphology of the filtration apparatus of three planktivorous fishes and relation with ingested anthropogenic particles 全文
2017
Collard, France | Gilbert, Bernard | Eppe, Gauthier | Roos, Laetitia | Compère, Philippe | Das, Krishna | Parmentier, Eric | Laboratoire Eau Environnement et Systèmes Urbains (LEESU) ; AgroParisTech-École nationale des ponts et chaussées (ENPC)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12) | CART ; Université de Liège = University of Liège = Universiteit van Luik = Universität Lüttich (ULiège) | Université de Liège = University of Liège = Universiteit van Luik = Universität Lüttich (ULiège)
International audience
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