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GWENAËL ABRIL - PUBLICATIONS

Soumis

[103]. Tremmel D., Oliveira E., Cotovicz Jr. L.C., Brandini N., Poirier D., Abril G. and Knoppers B. CDOM and its relationships with DOC in an urban eutrophic tropical embayment (Guanabara Bay, Brazil). Continental Shelf Research Submitted Feb. 2019.

[102]. Anschutz P., Bouchet S., Abril G., Tessier E., Bridou R., Amouroux D. In vitro simulation of oscillatory redox conditions in intertidal sediments: N, Mn, Fe, and P coupling. Continental Shelf Research. Revised Jan. 2019

[101]. Lajaunie-Salla K., Sottolichio A., Schmidt S., Litrico X., Binet G., and Abril G. Comparing the efficiency of hypoxia mitigation strategies in an urban, turbid tidal river, using a coupled hydro sedimentary biogeochemical model. Natural Hazards and Earth Systems Sciences. Submitted Dec. 2018.

2019

[100]. Abril G. and Borges A.V. (2019) Ideas and perspectives: Carbon leaks from flooded land: do we need to replumb the inland water active pipe? Biogeosciences 16, 769–784.

[99]. Cotovicz Jr. L.C., Knoppers B., Deirmendjian L., and Abril G. (2019) Sources and sinks of dissolved inorganic carbon in an urban tropical coastal bay revealed by δ13C-DIC signals. Estuarine Coastal and Shelf Science. In Press.

[98]. Deirmendjian L., Anschutz P., Morel C., Mollier A., Augusto L., Loustau D., Cotovicz Jr L.C., Lajaunie-Salla K., Chaillou, G., Buquet D., Charbonnier C., Poirier D. and Abril G. (2019) Importance of the vegetation-groundwater-stream continuum to understand transformation of biogenic carbon in aquatic systems - a case study based on a pine-maize comparison in a lowland sandy watershed (Landes de Gascogne, SW France). Science of the Total Environment 661: 613–629

[97]. Grasset C., Abril G., Mendonça R., Roland F., and Sobek S. (2019) The transformation of macrophyte-derived organic matter to methane relates to plant water and nutrient contents. Limnology and Oceanography, doi:10.1002/lno.11148.

2018

[96]. Albéric P., Pérez M.A.P., Moreira-Turcq P., Benedetti M., Bouillon S. and Abril G. (2018) Variation of dissolved organic carbon isotopic composition during the runoff cycle in the Amazon River and floodplains. CR Geoscience. 350: 65-75.

[95]. Borges A.V., Abril G. and Bouillon S. (2018) Carbon dynamics and CO2 and CH4 outgassing in the Mekong Delta. Biogeosciences 15: 1093-1114.

[94]. Cotovicz Jr. L.C., Knoppers B., Brandini N., Costa S.S.J. and Abril G. (2018) Aragonite saturation state in a tropical coastal embayment dominated by phytoplankton blooms (Guanabara Bay - Brazil). Marine Pollution Bulletin 129: 729-739.

[93]. Cotovicz Jr. L.C., Knoppers B., Brandini N., Poirier D. Costa S.S.J. and Abril G. (2018) Predominance of phytoplankton-derived dissolved and particulate organic carbon in a highly eutrophic tropical coastal embayment (Guanabara Bay, Rio de Janeiro, Brazil). Biogeochemistry 137: 1–14

[92]. Deirmendjian L. and Abril G. (2018) Carbon dioxide degassing at the groundwater-stream-atmosphere interface: isotopic equilibration and hydrological mass balance in a sandy watershed. Journal of Hydrology 558: 129-143.

[91]. Deirmendjian L., Loustau D., Augusto L., Lafont S., Chipeaux C., Poirier D., and Abril G. (2018) Hydro-ecological controls on dissolved carbon dynamics in groundwater and export to streams in a temperate pine forest. Biogeosciences 15: 669–691.

[90]. Gaillardet J., Braud I., Hankard F., Anquetin S., Bour O., Dorfliger N., de Dreuzy J.R., Galle S., Galy C., Gogo S., Gourcy L., Habets F., Laggoun F., Longuevergne L., Le Borgne T., Naaim-Bouvet F., Nord G., Simonneaux V., Six D., Tallec T., Valentin C., Abril G., et al. (2018) OZCAR: the French network of Critical Zone Observatories. Vadose Zone Journal 17:180067. doi:10.2136/vzj2018.04.0067

[89]. Lajaunie-Salla K., Sottolichio A., Schmidt S., Litrico X., Binet G., and Abril G. (2018) Future intensification of summer hypoxia in the Tidal Garonne River (SW France) simulated by a coupled hydro-sedimentary-biogeochemical model. Environmental Science and Pollution Research. doi10.1007/s11356-018-3035-6

[88]. Ribaudo C., Tison-Rosebery J., Buquet D., Jan G., Jamoneau A., Abril G., Anschutz P., and Bertrin V. (2018) Invasive Aquatic Plants as Ecosystem Engineers in an Oligo-Mesotrophic Shallow Lake. Frontiers in Plant Science, 9:1781. doi: 10.3389/fpls.2018.01781

2017

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[87]. Lajaunie-Salla K., Wild-Allen K., Sottolichio A., Thouvenin B., Litrico X., and Abril G. (2017) Impact of urban effluents on summer hypoxia in the highly turbid Gironde estuary, applying a 3D model coupling hydrodynamics, sediment transport and biogeochemical processes. Journal of Marine Systems. doi: 10.1016/j.jmarsys.2017.05.009.

2016

[86]. Cotovicz Jr L.C., Libardoni B.G., Brandini N. Knoppers B.A. and Abril G. (2016) Comparações entre medições em tempo real da pCO2 aquática com estimativas indiretas em dois estuários tropicais contrastantes: o estuário eutrofizado da baía de Guanabara (RJ) e o estuário oligotrofico do rio São Francisco (AL). Química Nova. 39: 1206-1214. doi: 10.21577/0100-4042.20160145.

[85]. Cotovicz Jr L.C., Knoppers B.A., Brandini N., Poirier D., Da Costa S.S.J., and Abril G. (2016) Spatio-temporal variability of methane concentrations and diffusive fluxes from a tropical coastal embayment surrounded by a large urban area (Guanabara Bay, Rio de Janeiro, Brazil). Limnology and Oceanography 61: S238–S252.

[84]. Grasset C., Abril G., Guillard L., Delolme C., and Bornette G. (2016) Carbon emission along a eutrophication gradient in temperate riverine wetlands: effect of primary productivity and plant community composition. Freshwater Biology. doi:10.1111/fwb.12780.

[83]. Jézéquel D., Michard G., Viollier E., Agrinier P., Albéric P., Lopes F., Abril G., and Bergonzini L. (2016). Carbon Cycle in a Meromictic Crater Lake: Lake Pavin, France. In T. Sime-Ngando et al. (eds.), Lake Pavin, Springer DOI 10.1007/978-3-319-39961-4_11, pp 185-203.

[82]. Mortillaro J. M., Passarelli C., Abril G., Hubas C., Albéric P. Artigas L.F., Benedetti M., Thiney N., Moreira-Turcq P., Pérez M.A.P., Vidal L., and Meziane T. (2016) The fate of C4 and C3 macrophyte carbon in Amazon floodplain waters: insights from a batch experiment. Limnologica - Ecology and Management of Inland Waters 59: 90–98.

[81]. Ribaudo C., Bertin V., Jan G., Anschutz P. and Abril G. (2016) Benthic production, respiration and methane oxidation within Lobelia dortmanna lawns. Hydrobiologia doi 10.1007/s10750-016-2848-x.

[80]. Sobrinho R.L., Bernardes M.C., Abril G., Kim J.-H., Zell C.I., Mortillaro J.-M., Meziane T., Moreira-Turcq P., and Sinninghe Damsté J.S. (2016) Spatial and seasonal contrasts of sedimentary organic carbon in floodplain lakes of the central Amazon basin. Biogeosciences 13: 467–482.

2015

[79]. Abril G., Bouillon S., Darchambeau F., Teodoru C., Marwick T., Tamooh F., Ochieng Omengo F., Geeraert N., Deirmendjian L., Polsenaere P., and Borges A.V. (2015) Technical Note: Large overestimation of pCO2 calculated from pH and alkalinity in acidic, organic-rich freshwaters. Biogeosciences 12: 67-78.

[78]. Borges A.V., Abril G., Darchambeau F., Teodoru C.R., Deborde J., Vidal L.O, Lambert T. and Bouillon S. (2015) Divergent biophysical controls of aquatic CO2 and CH4 in the World’s two largest rivers. Scientific Reports, 5:15614, doi: 10.1038/srep15614.

[77]. Cotovicz Jr L.C., Knoppers B.A., Brandini N., Da Costa S.S.J., and Abril G. (2015) A strong CO2 sink enhanced by eutrophication in a tropical coastal embayment (Guanabara Bay, Rio de Janeiro, Brazil). Biogeosciences 12: 6125–6146.

[76]. Vidal L.O., Abril G., Artigas L.F., Melo M.L., Bernardes M.C., Lobão L.M., Reis M.C., Moreira-Turcq P. Benedetti M.F., Tornisielo V.L. & Roland F. (2015) Hydrological pulse regulating the bacterial heterotrophic metabolism between Amazonian mainstems and floodplain lakes. Frontiers in Microbiology 6: 1054, doi: 10.3389/fmicb.2015.01054

[75]. Viovy N. et Abril G. (2015) L’eau dans les écosystèmes continentaux. Chapitre 15. dans : L'eau à découvert, R. Mosseri, C. Jeandel, A. Euzen (eds.). CNRS Editions. 116-117.

[74]. Mortillaro J. M., Pouilly M., Wach M., Freitas C. E. C., Abril G. and Meziane T. (2015) Trophic opportunism of central Amazon floodplain fish. Freshwater Biology, doi:10.1111/fwb.12598.

[73]. Pacheco F.S., Soares M.C.S. Assireu A.T., Curtarelli M.P., Roland F., Abril G., Stech J.L., Alvalá P.C., and Ometto J.P. (2015) River inflow and retention time affecting spatial heterogeneity of chlorophyll and water-air CO2 fluxes in a tropical hydropower reservoir. Biogeosciences 12: 147-162.

2014

[72]. Abril G., Martinez J.-M., Artigas L.F., Moreira-Turcq P., Benedetti M.F., Vidal L., Meziane T., Kim J.-H., Bernardes M.C., Savoye N., Deborde J., Albéric P., Souza M.F.L., Souza E.L. and Roland F. (2014) Amazon River carbon dioxide outgassing fuelled by wetlands. Nature 505: 395–398.

[71]. Fuentes-Cid A., Etcheber H., Schmidt S., Abril G., De Oliveira E., Lepage M. and, Sottolichio A. (2014) Dynamics of coarse particulate matter in the turbidity maximum zone of the Gironde Estuary. Comptes Rendus Géoscience. 346: 28–36.

2013

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[70]. Abril G., Deborde J., Savoye N., Mathieu F., Moreira-Turcq P., Artigas L.A., Meziane T., Takiyama L.R., Souza M.S. and Seyler P. (2013) Export of 13C-depleted dissolved inorganic carbon from a tidal forest bordering the Amazon Estuary. Estuarine Coastal and Shelf Science 129 : 23-27.

[69]. Abril G., Parize M., Pérez M.A.P. and Filizola N. (2013) Wood decomposition in Amazonian hydropower reservoirs: an additional source of greenhouse gases. Journal of South American Earth Sciences 44: 104-107.

[68]. Garnier J., Vilain G., Silvestre M., Billen G., Jehanno S., Poirier D., Martinez A., Decucq C., Cellier P. and Abril G. (2013) Budget of methane emissions from soils, livestock and the river network at the regional scale of the Seine basin (France). Biogeochemistry DOI 10.1007/s10533-013-9845-1.

[67]. Lanoux A., Etcheber H., Schmidt S., Sottolichio A., Chabaud G., Richard M. and Abril G. (2013) Factors contributing to hypoxia in a highly turbid, macrotidal estuary (the Gironde, France). Journal of Environmental Monitoring 15, 585-595.

[66]. Polsenaere P., Deborde J., Detandt G., Vidal L.O., Pérez M.A.P. and Abril G. (2013) Thermal enhancement of gas transfer velocity of CO2 in an Amazon floodplain lake revealed by Eddy Covariance. Geophysical Research Letters 40, 1734–1740, doi:10.1002/grl.50291.

[65]. Polsenaere P., Savoye N., Etcheber H., Canton M., Poirier D., Bouillon S. and Abril G. (2013) Export and degassing of terrestrial carbon through watercourses draining a temperate podsolised catchment. Aquatic Sciences 75: 299–319.

[64]. Zell C., Kim J.-H., Moreira-Turcq P., Abril G., Hopmans E., Bonnet M.-P., Lima Sobrinho R. and Sinninghe Damsté J .S. (2013). Disentangling the origins of branched tetraether lipids and crenarchaeol in the lower Amazon River: Implications for GDGT-based proxies. Limnology and Oceanography 58: 343-353.

[63]. Zell C., Kim J.-H., Abril G., Lima Sobrinho R., Dorhouta D., Moreira-Turcq P., and Sinninghe Damsté J. S. (2013) Impact of seasonal hydrological variation on the distributions of tetraether lipids along the Amazon River in the central Amazon basin: Implications for the MBT/CBT paleothermometer and the BIT index. Frontiers in Microbiology 4: 228. doi: 10.3389/fmicb.2013.00228

2012

[62]. Borges A. V., Bouillon S., Abril G., Delille B., Poirier D., Commarieu M.-V., Lepoint G., Morana C., Servais P., Descy J.-P. and Darchambeau F. (2012) Variability of carbon dioxide and methane in the epilimnion of Lake Kivu. In J.-P. Descy et al. (eds.), Lake Kivu: Limnology and biogeochemistry of a tropical great lake, Aquatic Ecology Series 5, Springer DOI 10.1007/978-94-007-4243-7_4. 47-66.

[61]. Mortillaro J. M. , Rigal F., Rybarczyk H., Bernardes M., Abril G., Meziane T. (2012) Particulate organic matter distribution along the Lower Amazon River: addressing aquatic ecology concepts using fatty acids. PLoS ONE 7(9): e46141. doi:10.1371/journal.pone.0046141

[60]. Kim J.H., Zell C., Moreira-Turcq P., Pérez M.A.P., Abril G., Mortillaro J.M., Weijers J.W.H., Meziane T., and Sinninghe Damsté J.S. (2012) Tracing soil organic carbon in the lower Amazon River and its tributaries using GDGT distributions and bulk organic matter properties. Geochimica et Cosmochimica Acta. 90: 163–180.

[59]. Luyssaert S., Abril G., Andres R., Bastviken D., Bellassen V., Bergamaschi P., Bousquet P., Chevallier F., Ciais P., Corazza M., Dechow R., Erb K.-H., Etiope G., Fortems-Cheiney A., Grassi G., Hartman J., Jung M., Lathière J., Lohila A., Moosdorf N., Njakou Djomo S., Otto J., Papale D., Peters W., Peylin P., Raymond P., Rödenbeck C., Saarnio S., Schulze E.-D., Szopa S., Verkerk P. J., Vuichard N., Wang R., Wattenbach M., Zaehle S. (2012) The European CO2, CO, CH4 and N2O balance between 2001 and 2005. Biogeosciences 9: 3357–3380.

[58]. Polsenaere P. and Abril G. (2012) Modelling CO2 degassing from small acidic rivers using water pCO2, DIC and δ13C-DIC data. Geochimica et Cosmochimica Acta 91: 220–239.

[57]. Polsenaere P., Lamaud E., Lafon V., Bonnefond J.-M., Bretel P., Delille B., Deborde J., Loustau D. and Abril G. (2012). Spatial and temporal CO2 exchanges measured by Eddy Correlation over a temperate intertidal flat and relations with net ecosystem production. Biogeosciences 9, 249–268.

[56]. Savoye N., David V., Morisseau F., Etcheber H., Abril G., Billy I., Charlier K., Oggian G., Deriennic H. and Sautour B. (2012) Origin and composition of particulate organic matter in a macrotidal turbid estuary: the Gironde Estuary, France. Estuarine Coastal and Shelf Science 108: 16-28.

2011

[55]. Borges A.V., and Abril G. (2011) Carbon dioxide and methane dynamics in estuaries. In Treatise on Coastal and Estuarine Science.Volume 8 - Biogeochemistry. Elsevier. 119-161.

[54]. Bouchet S., Bridou R., Tessier E., Rodriguez-Gonzalez P., Monperrus M., Abril G. and Amouroux D. (2011). An experimental approach to investigate mercury species transformations under redox oscillations in coastal sediments. Marine Environmental Research 71: 1-9.

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[53]. Borges A. V., Abril G., Delille B., Descy J.-P. and Darchambeau F. (2011) Diffusive methane emissions to the atmosphere from lake Kivu (Eastern Africa). Journal of Geophysical Research 116, G03032, doi:10.1029/2011JG001673.

[52]. Lopes F., Viollier E., Thiam A., Michard G., Abril G., Groleau A., Prévot F., Carrias J.-F., Albéric P. and Jézéquel D. (2011). Biogeochemical modelling of anaerobic vs. aerobic methane oxidation in a meromictic crater lake (Lake Pavin, France). Applied Geochemistry 26: 1919–1932.

[51]. Mortillaro J. M., Abril G., Moreira-Turcq P., Sobrinho R., Pérez M and Meziane T. (2011) Fatty acid and stables isotopes (δ13C, δ15N) signatures of particulate organic matter in the Lower Amazon River: seasonal contrasts and connectivity between floodplain lakes and the mainstem. Organic Geochemistry 42: 1159–1168.

2010

[50]. Abril G., Commarieu M.V., Etcheber H., Deborde J., Deflandre B., Zivadinovic M.K., Chaillou G., and Anschutz P. (2010) In vitro simulation of oxic/suboxic diagenesis in an estuarine fluid mud subjected to redox oscillations. Estuarine Coastal and Shelf Science. 88: 279-291.

[49]. Deborde J., Anschutz P., Guérin F., Poirier D., Marty D., Boucher G., Thouzeau G., Canton M. and Abril G. (2010) Methane sources, sinks and fluxes in a temperate tidal lagoon. Estuarine Coastal and Shelf Science 89: 256-266.

[48]. Koné Y. J. M., Abril G., Delille B. and Borges A.V. (2010) Seasonal variability of methane in the rivers and lagoons of Ivory Coast (West Africa). Biogeochemistry 100:21–37.

[47]. Huguet A., Vacher L., Saubusse S., Etcheber H., Abril G., Relexans S., Ibalot F. and Parlanti E. (2010) New insights into the size distribution of fluorescent dissolved organic matter in estuarine waters. Organic Geochemistry 41: 595–610.

[46]. Luyssaert S., Ciais P., Piao S., Schulze, E.-D., Jung M., Zaehle S., Reichstein M., Churkina G., Papale D., Abril G., Beer C., Grace J., Loustau D., Matteucci G., Magnani F., Schelhaas M.-J., Nabuurs G.-J., Verbeeck H., Sulkava M., van der Werf G. and Janssens I. (2010) The European carbon balance revisited. Part 3: forests. Global Change Biology 16: 1429–1450

[45]. Schulze E.D., Ciais P., Luyssaert S., Schrumpf M., Janssens I.A., Thiruchittampalam B., Theloke J., Saurat M., Bringezu S., Lelieveld J., Lohila A., Rebmann C., Jung M., Bastviken D., Abril G., Grassi G., Leip A., Freibauer A., Kutsch W., Don A., Nieschulze J., Börner A., Gash J., Dolman A.J. (2010) The European carbon balance. Part 4: integration of carbon and other trace-gas fluxes. Global Change Biology 16: 1451–1469.

2009

[44]. Abril G., Commarieu M.V., Sottolichio A., Bretel P. and Guérin F. (2009) Turbidity limits gas exchange in a large macrotidal estuary. Estuarine Coastal and Shelf Science. 83: 342–348.

[43]. Abril G. (2009) Comment on: "Underwater measurements of carbon dioxide evolution in marine plant communities: A new method" by J. Silva et al. Estuarine Coastal and Shelf Science 82: 357–360.

[42]. Bouillon S., Abril G., Borges A.V., Dehairs F., Govers G., Hughes H., Merckx R., Meysman F.J.R., Nyunja J., Osburn C., & Middelburg J.J. (2009) Distribution, origin and cycling of carbon in the Tana River (Kenya): a dry season basin-scale survey from headwaters to the delta. Biogeosciences 6: 2475–2493.

[41]. De Junet A., Abril G., Guérin F., Billy I. and De Wit R. (2009) A multi-tracers analysis of sources and transfers of particulate organic matter in a tropical reservoir (Petit Saut, French Guiana). River Research and Applications 25: 253-271.

[40]. Koné Y. J. M., Abril G., Kouadio K. N., Delille B. and Borges A.V. (2009) Seasonal variability of carbon dioxide in the rivers and lagoons of Ivory Coast (West Africa). Estuaries and Coasts 32: 246-260.

2008

[39]. Abril G. and Guérin F. (2008) Les barrages tropicaux: émetteurs de gaz à effet de serre. Pour la Science, numéro spécial sur l'eau, Janvier 2008.

[38] Ciais P., Borges A.V., Abril G., Meybeck M., Folberth G., Hauglustaine D. and Janssens I.A. (2008). The impact of lateral carbon fluxes on the European carbon balance. Biogeosciences 5: 1259-1271.

[37] Ciais P., Borges A.V., Abril G., Meybeck M., Folberth G., Hauglustaine D. and Janssens I.A. (2008). The lateral carbon pump, and the European carbon balance In: A.J. Dolman et al. (eds.), The Continental-Scale Greenhouse Gas Balance of Europe. Springer Science. pp 314-360.

[36]. Deborde J., Abril G., Mouret A., Jézéquel D., Thouzeau G., Clavier J., Bachelet G. and Anschutz P. (2008) Effects of seasonal dynamics of a Zostera noltii meadow on phosphorus and iron cycles in a tidal mudflat (Arcachon Bay, France) Marine Ecology, Progress Series 355: 59–71.

[35]. Deborde J., Anschutz P., Auby I., Glé C., Maurer D., Lecroart P., Commarieu M.V. and Abril G. (2008) Role of the tidal pumping on nutrient cycling in a temperate lagoon (Arcachon Bay, France) Marine Chemistry 109: 98–114.

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[34]. Guérin F., Abril G., Tremblay A. and Delmas R. (2008) Nitrous oxide emissions from tropical hydroelectric reservoirs. Geophysical Research Letters 35, doi:10.1029/2007GL033057.

[33]. Guérin F., Abril G., De Junet A. and Bonnet M.P. (2008) Anaerobic decomposition of tropical soils and plant material: implication for the CO2 and CH4 budget of the Petit Saut Reservoir. Applied Geochemistry 23: 2272-2283.

[32]. Kristensen E., Flindt M.R., Ulomi S., Borges A.V., Abril G. and Bouillon S. (2008) Emission of CO2 and CH4 to the atmosphere by sediments and open waters in two Tanzanian mangrove forests. Marine Ecology, Progress Series 370: 53–67.

2007

[31]. Abril G., Commarieu M.-V and Guérin F. (2007) Enhanced methane oxidation in an estuarine turbidity maximum. Limnology and Oceanography 52: 470–475.

[30]. Bouillon S., Middelburg J.J., Dehairs F., Borges A.V., Abril G., Flindt M.R., Ulomi S. and Kristensen E. (2007). Importance of intertidal sediment processes and porewater exchange on the water column biogeochemistry in a pristine mangrove creek (Ras Dege, Tanzania). Biogeosciences 4: 311–322.

[29]. Bouillon S., Dehairs F., Velimirov B., Abril G., and Borges A.V. (2007). Dynamics of organic and inorganic carbon across contiguous mangrove and seagrass systems (Gazi bay, Kenya) Journal of Geophysical Research - Biogeoscience 112, doi:10.1029/2006JG000325.

[28]. Deborde J., Anschutz P. Chaillou G., Etcheber H., Commarieu M.-V., Lecroart P. and Abril G. (2007) Phosphorus dynamics in turbid estuarine systems: Example of the Gironde estuary (France). Limnology and Oceanography 52: 862–872.

[27]. Etcheber H., Taillez A., Abril G., Garnier J., Servais P., Moatar F. and Commarieu M.-V. (2007) Particulate organic carbon in the estuarine turbidity maxima of the Gironde, Loire and Seine estuaries: origin and lability. Hydrobiologia, 588: 245-259.

[26]. Guérin F. and Abril G. (2007) Significance of pelagic aerobic methane oxidation in the methane and carbon budgets of a tropical reservoir. Journal of Geophysical Research - Biogeoscience 112, doi:10.1029/2006JG000393.

[25]. Guérin F., Abril G., Serça D., Delon C., Richard S., Delmas R., Tremblay A., and Varfalvy L. (2007) Gas transfer velocities of CO2 and CH4 in a tropical reservoir and its river downstream. Journal of Marine Systems 66: 161-172.

2006

[24]. Abril G., Richard S. and Guérin F. (2006) In-Situ measurements of dissolved gases (CO2 and CH4) in a wide range of concentrations in a tropical reservoir using an equilibrator. Science of the total Environment 354: 246-251.

[23]. Borges A.V., Schiettecatte L.-S., Abril G., Delille B. and Gazeau F. (2006) Carbon dioxide in European Coastal waters. Estuarine, Coastal and Shelf Science 70(3): 375-387.

[22]. Guérin F., Abril G., Richard S., Burban B., Reynouard C., Seyler P. and Delmas R. (2006) Methane and carbon dioxide emissions from tropical reservoirs: significance of downstream rivers. Geophysical Research Letters 33, L21407, doi:10.1029/2006GL027929.

2005

[21]. Abril G., Guérin F., Richard S., Delmas R., Galy-Lacaux C., Gosse P., Tremblay A., Varfalvy L., Dos Santos M.A. and Matvienko B. (2005) Carbon dioxide and methane emissions and the carbon budget of a 10-year old tropical reservoir (Petit-Saut, French Guiana). Global Biogeochemical Cycles, 19: GB4007, doi:10.1029/2005GB002457.

[20]. Coynel A., Etcheber H., Abril G., Maneux E., Dumas J. & Hurtrez J.H (2005) Contribution of small mountainous rivers to particulate organic carbon input in the Bay of Biscay. Biogeochemistry 74: 151–171.

[19]. Fontugne M., Maro D., Tenailleau L., Abril G., Commarieu M.-V., Germain P., Hébert D., Rozet M., Voiseux C., Solier L., Noury C., Hatté C. and Paterne M. (2005) Radionuclides transfer between water and atmosphere in the Loire estuary (FLORE project). Radioprotection 40: 557-562.

2004

[18]. Abril G., Commarieu M-V, Maro D, Fontugne M, Guérin F. & Etcheber H. (2004) A massive dissolved inorganic carbon release at spring tide in a highly turbid estuary. Geophysical Research Letters 31, L09316, doi:10.1029/2004GL019714.

[17]. Abril G. and Borges A.V. (2004). Carbon dioxide and methane emissions from estuaries. In: Greenhouse Gas Emissions: Fluxes and Processes. Hydroelectric Reservoirs and Natural Environments. A. Tremblay, L. Varfalvy, C. Roehm and M. Garneau (Eds) Environmental Science Series, Springer-Verlag, Berlin, Heidelberg, New York. 187-207.

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[16]. Borges A.V., Delille B. Schiettecatte L-S, Gazeau F. Abril G. & Frankignoulle M. (2004). Gas transfer velocities of CO2 in three European estuaries (Randers Fjord, Scheldt and Thames). Limnology and Oceanography 49(5): 1630-1641.

[15]. Delmas R., Richard R., Guérin F., Abril G., Galy-Lacaux C., Delon C. & Grégoire A. (2004) Long term greenhouse gas emissions from the hydroelectric reservoir of Petit Saut (French Guiana) and potential impacts. In: Greenhouse Gas Emissions: Fluxes and Processes. Hydroelectric Reservoirs and Natural Environments. A. Tremblay, L. Varfalvy, C. Roehm and M. Garneau (Eds) Environmental Science Series, Springer-Verlag, Berlin, Heidelberg, New York. 293-312.

[14]. Robert S., Blanc G., Schaefer J., Lavaux G. & Abril G. (2004) Metal mobilization in the Gironde Estuary (France): the role of the soft mud layer in the maximum turbidity zone. Marine Chemistry 87: 1-13.

2003

[13]. Abril G., Etcheber H., Delille B., Frankignoulle M. & Borges A.V (2003) Carbonate dissolution in the turbid and eutrophic Loire estuary. Marine Ecology, Progress Series 259: 129-138.

[12]. Bouillon S., Frankignoulle M., Dehairs F., Velimirov B., Eiler A., Abril G., Etcheber H. & Borges A.V. (2003) Inorganic and organic carbon biogeochemistry in the Gautami Godavari estuary (Andhra Pradesh, India) during pre-monsoon: the local impact of extensive mangrove forests. Global Biogeochemical Cycles 17:1114.

2002

[11]. Abril G., Nogueira M., Etcheber H., Cabeçadas G., Lemaire E. & Brogueira M.J. (2002) Behaviour of organic carbon in nine contrasting European estuaries. Estuarine, Coastal and Shelf Science 54: 241-262.

[10]. Abril G. & Iversen N. (2002) Methane dynamics in a shallow, non-tidal, estuary (Randers Fjord, Denmark). Marine Ecology, Progress Series 230: 171-181.

[9]. Lemaire E., Abril G., De Wit R. & Etcheber H. (2002) Effect of turbidity on phytoplankton pigments degradation in the Gironde estuary. Comptes Rendus Géosciences 334: 251-258.

[8]. Lemaire E., Abril G., De Wit R. & Etcheber H. (2002) Phytoplankton pigments in nine European estuaries: implications for an estuarine typology. Biogeochemistry 59: 5-23.

[7]. Tessier E., Amouroux D., Abril G., Lemaire E., & Donard O.F.X. (2002) Formation and volatilisation of alkyl-Iodides and -Selenides in macrotidal estuaries. Biogeochemistry 59: 183-206.

2001

[6]. Abril G. and Frankignoulle M. (2001) Nitrogen-Alkalinity interactions in the highly polluted Scheldt basin (Belgium). Water Research 35: 844-850.

[5]. Tseng C.M., Amouroux D., Abril G., Tessier E., Etcheber H. & Donard O.F.X. (2001) Speciation of Mercury in a Fluid Mud profile from a Highly Turbid Estuary (The Gironde, France). Environmental Science and Technology 35: 2627-2633.

2000

[4]. Abril G., Riou S., Etcheber H., Frankignoulle M., De Wit R. & Middelburg J.J. (2000) Transient, tidal time-scale Nitrogen transformations in an estuarine turbidity maximum-fluid mud system (The Gironde, France). Estuarine Coastal and Shelf Science 50: 703-715.

[3]. Abril G., Etcheber H., Borges A.V. & Frankignoulle M. (2000) Excess atmospheric carbon dioxide transported by rivers into the Scheldt Estuary. Comptes Rendus de l'Académie des Sciences Série IIA 330: 761-768.

1999

[2]. Abril G., Etcheber H., Le Hir P., Bassoullet P., Boutier B. & Frankignoulle M. (1999) Oxic/anoxic oscillations and organic carbon mineralization in an estuarine maximum turbidity zone (The Gironde, France). Limnology and Oceanography 44: 1304-1315.

1998

[1]. Frankignoulle M., Abril G., Borges A., Bourge I., Canon C., Delille B., Libert E. & Théate J.M. (1998) Carbon dioxide emission from European estuaries. Science 282: 434-436.

CONFÉRENCES

Abril G. (2018) Acidicicaçao do oceano costeiro. 1º Congresso de Biologia Marinha e Ambientes Costeiros, Niteroi, Conférence invitée.

Abril G. (2017) O Rio Amazonas e o CO2 atmosférico. 7th Hybam Scientific meeting, Niteroi. Conférence Invitée.

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Abril G. (2017) Wetlands in the inland water Carbon budget: the need for an update of the active pipe concept. XVI Congresso Brasileiro de Limnologia, 23 - 27 Juillet 2017. Oral, conférence plénière invitée.

Cotovicz Jr L.C., Vidal L., Bernardes M.C., Knoppers B.A., Rezende C.E., Abril G. (2017) Air-water CO2 fluxes in the tropical mesotrophic Paraíba do Sul River Estuary, Southeastern Brazil 7th Hybam Scientific meeting, Niteroi. Oral (LCCJr)

Libardoni B. G., Knoppers B. A., Brandini N., Medeiros P. P., Cavalcante G. H., Abril, G. (2017) Controle termodinâmico de CO2 induzido por condições oligotróficas causadas por barragens no estuário do Rio São Francisco, NE- Brasil. 7th Hybam Scientific meeting, Niteroi. Oral (BGL)

Costa Santos S.J., Bernardes M., Moreira Turcq P., Fraizy P., Abril G. (2017) Comparação das concentrações de gás carbônico (CO2) dos rios da bacia de Ucayali e dos Solimões e Amazonas. XVI Congresso Brasileiro de Limnologia, 23 - 27 Juillet 2017. Poster.

Jézéquel D., Abril G., Cadeau P., Sarazin G., Leboulanger C., Fouilland E., Agogué H., Bernard C., Ader M. (2017) Strong CO2 and CH4 efflux from Dziani Dzaha crater lake: Implications on carbon budget. Goldschmidt Conference 2017.

Guilhen J., Sauvage S., Parrens M., Al Bitar A., Kerr Y., Santini W., Martinez J.M., Abril G. and Sanchez-Pérez J.M. (2017) Using SWAT and L-band earth observations to assess the role of Amazonian wetlands in carbon and nitrogen biogeochemical cycles. SWAT international conference, Varsovia, July 2017. Poster.

Ribaudo C., Poli A., Jan G., Abril G., Anschutz P. et Bertrin V. (2016) Relation entre hypoxie, émissions de GES et force du vent dans les herbiers denses d’hydrophytes dans les lacs. 4ème Journées Internationales de Limnologie et d’Océanographie. Saint-Malo, 27-29 Septembre 2016.

Abril G. (2015) Transport, recyclage, et émissions de carbone par les eaux continentales. Colloque Inaugural du Réseau national Écosystèmes de l’infrastructure ICOS. Septembre 2015, INRA Cestas. Oral, conférence invitée.

Abril G. (2015) Emisiones de carbono atmosférico por el Río Amazonas. Sixth Scientific Meeting of the Observatory Service (SO) HYBAM - Cuzco (Peru) 26-30 October 2015. Rivers from the Andes and the Amazon : deciphering the global change from hydroclimatic variability in the critical zone. Conférence invitée.

Abril G. (2015) Wetlands: the missing link in the inland waters carbon balance? ASLO Meeting Granada, Spain. Oral, Invited talk.

Ribaudo C., Dutartre A., Abril G., Anschutz P., Bertrin V. (2015). Carbon fixation and emission within dense aquatic weed mats of a temperate shallow lake. 14th International Symposium on Aquatic Plants, Edinburgh Sept. 2015.

Cadeau P., Ader M., Jezequel D., Sarazin G., Alberic P., Abril G., Chaduteau C., Bernard C., Agogué H. Fouilland E., Bouvy E., Git P., Le Floc’h E. and Leboulanger C. (2015) The Dziani Dzaha Lake (Mayotte): an analogue for high δ13C Precambrian paleoenvironments. Goldschmidt Conference, Prague.

Anschutz P., Rapin A., Deirmendjian L., Morel C., and Abril G. (2015) Phosphorus behaviour at the groundwater-river redox boundary. ASLO Meeting Granada, Spain. Oral (PA).

Buquet D., Anschutz P., Charbonnier C., Bujan S., Laughlin T., Poirier D., Abril G. (2015) Groundwater inputs impact the biogeochemistry of two shallow lakes. ASLO Meeting Granada, Spain. Oral (DB).

Costa Santos S., Brandini N., Cotovicz Jr L.C., Costa L., Abril G., and Knoppers B.A. (2015). Evaluation of the trophic state of Guanabara Bay, SE Brazil, with the TRIX and O Boyle indices. 13th International Estuarine Biogeochemistry Symposium. Bordeaux, 7-10 June 2015. Poster.

Cotovicz Jr L.C., Knoppers B.A., Brandini N., Da Costa S.S.J., and Abril G. (2015) A large annual CO2 sink in a hypertrophic tropical coastal embayment (Guanabara Bay, Rio de Janeiro, Brazil). ASLO Meeting Granada, Spain. Poster.

Cotovicz Jr L.C., Knoppers B.A., Brandini N., Da Costa S.S.J., and Abril G. (2015) A large CO2 sink in a hypertrophic tropical coastal embayment (Guanabara Bay, Rio de Janeiro, Brazil). 13th International Estuarine Biogeochemistry Symposium. Bordeaux, 7-10 June 2015. Oral (LCCJr)

Deirmendjian L. and Abril G. (2015) CO2 degassing and δ13C-DIC equilibration along the groundwater-stream-river continuum in a temperate catchement (Leyre River, France). ASLO Meeting Granada, Spain. Oral (LD).

Lajaunie-Salla K., Sottolichio A., Thouvenin B., Litrico X., and Abril G. (2015) 3D modelling of summer hypoxia in a highly turbid urbanized macrotidal estuary, coupling hydrodynamics, sediment transport and biogeochemical processes. ASLO Meeting Granada, Spain. Poster.

Lajaunie-Salla K., Sottolichio A., Thouvenin B., Litrico X., and Abril G. (2015) Modelling summer hypoxia in the Gironde estuary, using a 3D model coupling hydrodynamics, sediment transport and biogeochemical processes. 13th International Estuarine Biogeochemistry Symposium. Bordeaux, 7-10 June 2015. Oral (KL-S).

Lajaunie-Salla K., Sottolichio A., Thouvenin B., Litrico X., and Abril G. (2015) Modelling summer hypoxia in the Gironde estuary, using a 3D model coupling hydrodynamics, sediment transport and biogeochemical processes. ECSA conference. 6-9 September 2015 - London Excel, United Kingdom.

Libardoni B., Knoppers B.A., Brandini N., Medeiros P.B. and Abril G. (2015) Surface water pCO2 in the tropical oligotrophic São Francisco estuary (NE Brazil), impacted by dams. 13th International Estuarine Biogeochemistry Symposium. Bordeaux, 7-10 June 2015. Poster.

Abril G. (2014) Les contrôles du fonctionnement biogéochimique des eaux continentales par le milieu terrestre qui les entoure. Séminaire scientifique du LabEx COTE. Oral. Conférence invitée.

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Abril G., Martinez J.-M., Artigas L.F., Moreira-Turcq P., Benedetti M., Vidal L., Meziane T., Kim J.-H., Bernardes M.C., Savoye N., Deborde J., Lima Souza E., Albéric P., Landim de Souza M.F.& Roland F. (2014) Wetlands as a large carbon source for the Amazon River. International Conference on the Status and Future of the World's Large Rivers, Manaus, Brazil. July 2014.

Cotovicz Jr L. C., Abril G., Brandini N. da Costa S.J., Costa L.P., and Knoppers B.A. (2014) On the marked CO2 sink and diurnal variations of pCO2 in the tropical and eutrophic Guanabara Bay estuary, SE Brazil. Congresso Brasileiro de Oceanografia, Itajaí, Brasil. Poster.

Deirmendjian L., Rapin A., Anschutz P., Morel C. and Abril G. (2014). Carbon and nutrient fluxes at the terrestrial-water interface in the Leyre River basin. XIVth International Symposium on Oceanography of the Bay of Biscay. Bordeaux. Poster.

Ribaudo C., Bertrin V., Abril G., Anschutz P. and Dutartre A. (2014). Oxygen and methane in situ benthic fluxes measurements within isoetids meadows. Joint Aquatic Science Meeting, Portland Oregon. Oral (CR)

Da Costa S.J., Brandini N., Cotovicz Jr L. C., Pinhero C.L., Abril G., and Knoppers B.A. (2014) Nutrientes e estado trofico da Baia de Guanabara (RJ): uma analise comparative entre os periodos 1982, 1991, e 2013. Congresso Brasileiro de Oceanografia, Itajaí, Brasil. Poster. Oral (SJDC).

Charbonnier C., Anschutz P., Abril G., Deirmendjian L., Buquet D., Poirier D., Bujan S. and Lecroart P. (2014) Land-ocean connectivity through fresh groundwater discharge: nutrient mass balance along the Aquitaine sandy coast. XIVth International Symposium on Oceanography of the Bay of Biscay. Bordeaux. Oral (CC)

Charbonnier C., Anschutz P., Abril G., Deirmendjian L. and Lecroart P. (2014) Biogeochemistry in permeable sandy sediments of ultra high-energy tidal beaches : DIC and CO2 release along the subterranean estuary. Ocean Science Meeting, Honolulu, Hawaii USA. Poster.

Sobrinho R., Kim J.-H., Abril G., Zell C., Moreira-Turcq P., Mortillaro J.-M., Meziane T., Sinninghe Damsté J .S., and Marcelo C. Bernardes (2014) Seasonal and spatial contrasts of sedimentary organic carbon in floodplain lakes of the central Amazon basin. EGU general assembly, Vienna, April 2014, Oral (SR)

Lanoux A., Abril G., Etcheber H., Schmidt S. and Sottolichio A. (2014) Impacts of carbon and nitrogen fluxes from urban wastewater and runoff on dissolved oxygen in a macrotidal estuary (Gironde, France). Ocean Science Meeting, Honolulu, Hawaii USA. Oral (AL)

Stets E., Raymond P.A, Abril G., Borges A.V., Bouillon S., Marwick T.R., Tamooh F. and Teodoru C. (2013) Widespread positive bias in calculated carbon dioxide concentration: causes and implications for large-scale estimates of carbon dioxide efflux from freshwater ecosystems. AGU 2013 Fall meeting, San Francisco. Poster.

Abril G., Cotovicz Jr. L.C., Brandini N. and Knoppers B.A. (2013) Coastal Ocean Acidification: what and where should we search? Building the Marine Science - French Brazilian Meeting 4-9 nov. 2013 Buzios, Brazil. Oral (GA)

Knoppers B.A. and Abril G. (2013) The CO2 system in the proximal coastal ocean: Brazilian ecosystems as strategic tropical study sites. Marinebrazil : Building the Marine Science - French Brazilian Meeting 4-9 nov. 2013 Buzios, Brazil. Oral (BAK)

Cotovicz Jr L. C., Knoppers B.A., Brandini N., Santos S., Costa L. and Abril G. (2013) pCO2 trends and Eutrophication in Guanabara Bay, RJ, SE-Brazil. Marinebrazil : Building the Marine Science - French Brazilian Meeting 4-9 nov. 2013 Buzios, Brazil. Poster.

Cotovicz Jr L. C., Brandini N., Knoppers B.A., and Abril G. (2013) Medições Contínuas Sub-Superficiais do pCO2 na Baía de Guanabara: Levantamentos Preliminares. Colacmar Montevideo, Uruguai. Poster.

Abril G. (2013) Les zones humides alimentent les émissions de CO2 du fleuve Amazone. Table ronde : "Zones humides : fonctionnement, indicateurs, gestion et restauration", vendredi 11 octobre 2013, Frasne. Conférence invitée.

Lanoux A., Etcheber H., Sottolichio A., Schmidt S., Chambolle M., Litrico X. and Abril G. (2013) Impact of wastewater discharge from the city of Bordeaux on summer oxygenation of the Garonne tidal River. 10th IWA Leading Edge Conference on Water and Waste Water Technologies. Bordeaux. Oral (AL)

Abril G., Martinez J.-M., Artigas L.F., Moreira-Turcq P., Benedetti M., Vidal L., Meziane T., Kim J.-H., Bernardes M.C., Savoye N., Deborde J., Lima Souza E., Albéric P., Landim de Souza M.F.& Roland F. (2013) Emisiones de CO2 del rio Amazonas central alimentadas por las zonas húmidas. Vth ORE-HYBAM Scientific Meeting, La Paz, Bolivia. Oral (PM-T)

Vihermaa L., Waldron S., Newton J, Polsenaere P., Abril G. and Krusche A. - CO2 fluxes from Amazonian small streams – comparing direct measurements to modelling results Vth ORE-HYBAM Scientific Meeting, La Paz, Bolivia. Oral (LV)

Zell C., Kim J.-H., Lima Sobrinho R., Moreira-Turcq P., Abril G. and Jaap S. Sinninghe Damsté (2013) Impact of seasonal hydrological variation on the distributions of branched and isoprenoid tetraether lipids along the Amazon River in the central Amazon basin: Implications for the MBT/CBT paleothermometer and the BIT index. EGU, Vienna. Poster.

Abril G. (2012). Le fleuve Amazone et ses plaines d'inondations : source ou puits de CO2? Ecole Doctorale Evolution, Ecosystèmes, Microbiologie, Modélisation. Université Lyon 1. Conférence invitée.

Moreira-Turcq P., Pérez M.A.P., Abril G., Bernardes M. C., Mandengo Yogo, M. (2012) The age of particulate organic matter transported by Rivers: insights in the Amazon River system. 21st international Radiocarbon conference. Unesco Paris. Poster.

Abril G., Martinez J.M., Artigas L.F., Moreira-Turcq P., Vidal L., Roland F., Meziane T., Kim J.-H., Bernardes M.C., Savoye N., Deborde J., de Souza M.F.L., Souza E.L. and Benedetti M.F. (2012) Wetlands fuel CO2 outgassing from the Amazon River. CARBAMA final meeting 3-6, National Museum of Natural History, Dec. 2012. Keynote Lecture (GA).

Abril G. (2012) Introduction to CARBAMA, a plurisdisciplinary project. CARBAMA final meeting 3-6, National Museum of Natural History, Dec. 2012.

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Abril G., Etcheber H., Lanoux A., Sottolichio A., Schmidt S. (2012) Hypoxia in French Turbid Estuaries: Identifying natural and anthropogenic causes. ECSA Meeting, Venise, Oral (GA).

Mortillaro J.M., Moreira-Turcq P., Abril G., Artigas L.F. and Meziane T (2012) Seasonal particulate organic matter caracterization in the Amazon river-floodplain ecosystem. CARBAMA final meeting 3-6, National Museum of Natural History, Dec. 2012. Keynote Lecture (TM).

Mortillaro J.M., Passarelli C., Hubas C., Artigas L.F., Benedetti M.F., Alberic P., Brugel S., Perez M., Vidal L., Moreira-Turcq P., Abril G., Meziane T. (2012) Degradation kinetics of Amazon floodplains C4 and C3 macrophytes (Paspalum repens and Salvinia auriculata) from a multi-tracer approach. 8th ISOECOL meeting, Brest, August 2012

Artigas L.F., Brugel S., Lizon F., Chicheportiche J., Paranhos R., Arantes O.E.C., Bonnet M.-P., Abril G. (2012) Phytoplankton and bacterioplankton biomass and spectral group distribution in the Amazon River and floodplains. CARBAMA final meeting 3-6, National Museum of Natural History, Dec. 2012, Oral (LFA).

Artigas L.F., Brugel S., Lizon F., Chicheportiche J., Paranhos R., Arantes O.E.C., Bonnet M.-P., Abril G. (2012) Phytoplankton primary productivity in white waters of Amazonian floodplains. CARBAMA final meeting 3-6, National Museum of Natural History, Dec. 2012, Oral (LFA).

Nogueira I.S. Alves C.P.P., Arantes O.E.C., Kraus C.N., Ruwer D., Abril G. and Bernardes M.C. (2012) The influence of the hydrological cycle and local facts in the distribution of phytoplankton in Amazonian floodplains. CARBAMA final meeting 3-6, National Museum of Natural History, Dec. 2012, Oral (ISN).

Vidal L.O, Abril G., Artigas L.F., Lobão L.M., Melo M.L., Bernardes M.C., Moreira-Turcq P., Brugel S., Tornisielo V.L. and Roland F. (2012) Bacterial carbon demand and growth efficiency in contrasting freshwater Amazonian ecosystems. CARBAMA final meeting 3-6, National Museum of Natural History, Dec. 2012, Oral (LOV).

Mortillaro J.M., Pouilly M., Wach M., Abril G., Meziane T. (2012) Utilization of organic matter by freshwater fishes in two amazonian floodplains (Cabaliana and Janauaca, Brazil). CARBAMA final meeting 3-6, National Museum of Natural History, Dec. 2012, Oral (MP).

Savoye N., Albéric P., Moreira-Turcq P., Nogueira I.S., Artigas L.F. & Abril G. (2012). Impact of phytoplankton on 13C DIC diurnal and seasonal signals in Amazonian floodplains. CARBAMA final meeting 3-6, National Museum of Natural History, Dec. 2012, Oral (NS).

Albéric P., Savoye N., Benedetti M.F., Moreira-Turcq P., Bernardes M.C. & Abril G. (2012). Dissolved carbon sources in the Amazon River and floodplains: constraints from 13C-DOC and 13C-DIC. CARBAMA final meeting 3-6, National Museum of Natural History, Dec. 2012, Oral (PA).

Mortillaro J.M., Passarelli C., Hubas C., Artigas L.F., Benedetti M.F., Alberic P., Brugel S., Pérez M.A.P., Vidal L.O, Moreira-Turcq P., Abril G. and Meziane T. (2012) Degradation kinetics of Amazon floodplains C4 and C3 macrophytes (Paspalum repens and Salvinia auriculata) from a multi-tracer approach. CARBAMA final meeting 3-6, National Museum of Natural History, Dec. 2012, Oral (JMM).

Moreira-Turcq P., Pérez M.A.P., Abril G., Bernardes M.C, (2012). Temporal and spatial characteristics of particulate organic matter in floodplains and Amazon River. CARBAMA final meeting 3-6, National Museum of Natural History, Dec. 2012, Oral (PMT).

Sobrinho R.L., Zell C.I., Kim J.-H., Abril G., Moreira-Turcq P., Mortillaro J.-M., Meziane T., Sinninghe Damsté J.S., Bernardes M.C. (2012) Sedimentary lignin and glycerol dialkyl glycerol tetraether signals in floodplain lakes (várzeas) in the central Amazon Basin. CARBAMA final meeting 3-6, National Museum of Natural History, Dec. 2012, Oral (RLS).

Zell C.I., Kim J.-H., Sobrinho R.L., Moreira-Turcq P., Abril G. and Sinninghe Damsté J.S. (2012) Seasonal hydrological influence on the source and distribution of the tetraether lipids in the river and floodplain lake SPM in the central Amazon basin. CARBAMA final meeting 3-6, National Museum of Natural History, Dec. 2012, Oral (CIZ).

Mortillaro J. M. , Rigal F., Rybarczyk H., Bernardes M., Abril G., Meziane T. 2012. Particulate organic matter distribution along the Lower Amazon River: addressing aquatic ecology concepts using fatty acids. CARBAMA final meeting 3-6, National Museum of Natural History, Dec. 2012, Oral (H.R).

Lanoux A., Etcheber H., Abril G., Sotolichio A., Schmidt S., Pelloux S. (2012) Anthropogenic impacts on the dissolved oxygen contents in the estuarine Garonne river (Bordeaux, France) ECSA Meeting, Venise, Oral (AL)

Nogueira S. I, Pereira Alves C.P., Abril G. 2012. Variação nictemeral da comunidade fitoplanctônica no Lago Grande de Curuaí e as relações com a absorção de CO2. Congresso Brasileiro de Ficologia, XIV Congresso Brasileiro de Ficologia. João Pessoa, Brésil. Oral (ISN)

Abril G. 2011. Las usinas hidroeléctricas en Amazonía: impacto sobre el Efecto invernadero. 4ème réunion scientifique de l’ORE HYBAM. Lima, Septembre 2011. Oral (GA).

Abril G., Martinez J.M., Nogueira I., Moreira-Turcq P. Artigas L.F., Albéric P., Arantes C., Benedetti M.F., Bernardes M., Bonnet M.P., Brugel S. Collin E., Deborde J., Espinoza R., Filizola N., Lizon F., Lamback B., Landim M., Meziane T., Mendoza C. Mortillaro J.M., Pereira C., Perez M. Polsenaere P., Roland F., Savoye N., Seyler P., Sobrinho R., Sousa M., Vidal L. 2011. Ciclo del carbono en las varzeas del Río Amazonas: El proyecto CARBAMA. 4ème réunion scientifique de l’ORE HYBAM. Lima, Septembre 2011. Oral (GA).

Abril G., Artigas LF, Albéric P, Arantes C., Benedetti MF, Bernardes M., Bonnet MP, Brugel S, Collin E, Deborde J., Sobrinho R., Lizon F., Martinez JM, Meziane T, Mortillaro JM, Moreira-Turcq P, Nogueira I, Perez MA, Polsenaere P, Roland F, Savoye N, Seyler F, Seyler P, Espinoza R, Sousa da Silva M, Landim de Souza MF, Vidal L. Cycle du carbone et échanges atmosphériques dans le fleuve Amazone. Séminaire de restitution ANR. Montpellier. Mars 2011. Oral (GA).

10

Pereira Alves C., Nogueira I., Abril G. (2011). Variação nictemeral da comunidade fitoplanctônica no Lago Grande de Curuaí e as relações com a absorção de CO2. 4ème réunion scientifique de l’ORE HYBAM. Lima, Septembre 2011. Oral (C.P.A.)

Kim J.-H., Moreira-Turcq P., Zell C., Pérez M., Mortillaro J.-M., Abril G., Sinninghe Damsté J.S. Tracing soil organic matter in the Amazon River and its main tributaries. 4ème réunion scientifique de l’ORE HYBAM. Lima, Septembre 2011. Oral (J.H.K.).

Abril G. 2011. Balanço de CO2 entre o Rio Amazonas e a atmosfera: o papel das várzeas. Conférence pleinière à l’INPA, Juin 2011. Manaus.

Mendoza C., Martinez JM, Moreira-Turcq P., Bonnet MP, Espinoza R., Gamundi A., Abril G. and Seyler P. (2011) Monitoreo espacial y temporal del estado trófico de los lagos de planicies de inundación en la Amazonía central mediante sensores remotos. Simpósio Brasileiro de Sensoriamento Remoto, 15 (SBSR), 30 abr. – 5/5/2011, p. 5324-5331.

Borges A.V., Abril G., Delille B., Bouillon S., Descy J.P., Darchambeau F. 2011. Variability of methane in the epilimnion of Lake Kivu. 3rd International Symposium on Organic Matter Dynamics Leuven, Belgium July, 2011. Poster.

Abril G., 2010. o projeto CARBAMA o papel do Rio Amazonas na balança regional de Carbono. Conférence plénière à l’Université de Goias, Brésil. Invité.

Abril G., Nogueira I., Brugel S., Artigas L.F., Martinez J.-M., Albéric P., Arantes C., Benedetti M.F., Bernardes M., Bonnet M.-P., Collin E., Deborde J., Filizola N., Sobrinho R., Lizon F., Meziane T., Mortillaro J.M., Pérez M.A., Polsenaere P., Roland F., Savoye N., Seyler P., Sousa da Silva M., Marcelo Landim de Souza M., Vidal L., Zell C., Moreira-Turcq P. 2010. Toward a typology of CO2 fluxes and a re-assessment of outgassing in the Amazon River. COST-735 2010 Meeting on Experimental, typological and modelling approaches to evaluate at global and regional scales horizontal and vertical fluxes from land to the open ocean through rivers, estuaries and the coastal ocean, Liège Oct. 2010. Oral, invited contribution (GA).

Abril G., Artigas L., Vidal L., Roland F., Deborde J., Savoye N., Martinez J.M., Collin E., Brugel S., Landim de Souza M., Moreira-Turcq. P. 2010. Large channel – floodplain pCO2 contrasts in Amazonian white waters. AGU Meeting of the Americas 8–12 August. Foz do Iguaçu, Brazil. Oral (GA).

Artigas L., Oliveira E. A., Chicheportiche J., Brugel S., Mendoza M., Lamback B., Abril G., Bonnet M., Lizon F.; Paranhos R., Pérez M., Martinez J.M., Moreira-Turcq. P. 2010. Bacterial and phytoplankton biomass compared dynamics in different aquatic systems of the central Amazon River. AGU Meeting of the Americas 8–12 August. Foz do Iguaçu, Brazil. Poster.

Amouroux D. Bouchet S, Tessier E, M. Monperrus, P. Rodriguez Gonzalez, G. Thouzeau, G. Abril, P. Anschutz (2010) Mercury biogeochemistry at the sediment-water interface in the Arcachon Bay: new insights from field to laboratory experimental stratégies. ISOBAY XII International Symposium on Oceanography of the Bay of Biscay, Brest, May. 2010

Borges A.V. and Abril G. 2010. Carbon dioxide and methane dynamics in estuaries. EGU General Assembly 2010. Vienna. Oral (AVB)

Brugel S., Oliveira E. A., Artigas L., Lizon F., Abril G. 2010. Phytoplankton Production and Photoacclimation in Amazonian Floodplain Lakes. AGU Meeting of the Americas 8–12 August. Foz do Iguaçu, Brazil. Oral (SB).

Polsenaere P. and Abril G. Modelling CO2 degassing from small acidic rivers using pCO2, DIC and δ13C-DIC data. Meeting of the Americas 8–12 August. Foz do Iguaçu, Brazil. Oral (PP).

Vidal L., Artigas L., Abril G., Roland F., Chicheportiche J., Brugel S. 2010. Carbon flux via bacterial metabolism in the Amazon River system. AGU Meeting of the Americas 8–12 August. Foz do Iguaçu, Brazil. Oral (LV).

Zell C. I., Kim J.H., Villanueva L., Mortillaro J.M., Meziane T., Sobrinho R., Bernardes M., Abril G., J. S. Sinninghe Damsté. 2010. Source of archaeal and bacterial membrane lipids in the Amazon River and floodplain lakes. AGU Meeting of the Americas 8–12 August. Foz do Iguaçu, Brazil. Poster.

Parlanti, E., Relexans, S., Amouroux, D., Bridou, R., Bouchet, S., Abril, G., Etcheber, H., 2010. Study of colloidal organic matter transformation processes at superficial sediment interfaces. The World Conference On Humic Substances & Natural Organic Matter. XV Meeting of the International Humic Substances Society, Puerto de la Cruz, Tenerife, Canary Islands, 27 June - 2 July 2010. Oral (EP)

Abril G. 2009. O Ciclo global do carbono, o efeito de estufa, e o Rio Amazonas. Conférence pleinière à l’Université de Manaus, Brésil. Mars 2009.

Borges A.V., J.-P. Descy, B. Delille, G. Lepoint, P. Servais, G. Abril, S. Bouillon, M. Schmid, N. Pasche, F. Darchambeau, Carbon cycling in the mixolimnion of Lake Kivu (East Africa), ASLO Aquatic Sciences Meeting, Nice, France, 25-30 January 2009. Oral (AVB).

Bouillon S., G. Abril, A.V. Borges, E. Chevalier, F. Dehairs, R. Merckx, C. Osburn, K. Van Oost & J. Middelburg, Distribution and cycling of carbon in the Tana river basin, from headwaters to the Tana river delta, ASLO Aquatic Sciences Meeting, Nice, France, 25-30 January 2009. Oral (SB)

Polsenaere P., Abril G. and Bretel P. 2008. Atmospheric CO2 Exchange by eddy-covariance in the Arcachon lagoon: an integrative measure of intertidal ecosystem metabolism. XI International Symposium on Oceanography of the Bay of Biscay, San Sebastian. Poster.

Thouzeau G. Abril G., Migné A., Davoult D., Clavier J., Amice E., Boucher G., Bujan S., Deborde J., Guérin F., Marc R., Masson A., Ouissec V., Robineau C. and Spilmont N. 2008. Spatial and temporal variability of CO2 fluxes at the sediment-water, sediment-air and air-sea interfaces in the Arcachon lagoon (France). XI International Symposium on Oceanography of the Bay of Biscay, San Sebastian. Oral (GT).

Borges A.V., B. Delille, J.-P. Descy, F. Darchambeau, B. Leporcq, P. Servais, G. Lepoint, S. Bouillon, G. Abril, Carbon dioxide dynamics in lake Kivu during the dry and wet seasons, EGU General Assembly, Vienna, Austria, 13 - 18 April 2008. Oral (AVB)

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Rodriguez-Gonzalez, P., Bouchet, S., Tessier, E., Monperrus, M., Amouroux, D., Anschutz, P., Thouzeau, G., Abril, G., Clavier, J., 2008. Biogeochemical inter-tidal processes and fluxes of organomercury and organotin compounds in the Arcachon Bay (France), dans: 11th International Symposium on Oceanography of the Bay of Biscay. Revista de Investigacion Marina, San Sebastian, pp. 19-20.

Tessier E. , S. Bouchet, M. Monperrus, P. Rodriguez Gonzalez, D. Amouroux, P. Anschutz, G. Thouzeau, G. Abril 2008 Gaseous mercury exchange at the sediment-water-atmosphere interfaces in a macrotidal lagoon (Arcachon Bay, France). XI International Symposium on Oceanography of the Bay of Biscay, San Sebastian, Apr. 2008.

Koné Y.J.M., G. Gourene, G. Abril, B. Delille & A.V. Borges, Seasonal variability of CO2 fluxes in the tropical lagoons of Ivory Coast, EGU General Assembly, Vienna, Austria, 13 - 18 April 2008. Poster.

Abril G. 2007. Le projet CARBAMA, Journées scientifiques de l’ORE Hybam, Manaus, Nov. 2007. Oral

Abril G. 2007. Carbon and greenhouse gases processing in aquatic systems : concepts and methodolical approaches. II Workshop on greenhouse gases in Tropical reservoirs. Foz de Iguazu, Brésil. Oct. 2007.Oral. Invité.

Abril G. 2007. CO2 and CH4 fluxes and the carbon budget of a 10-year old tropical reservoir (Petit Saut, French Guiana). II Workshop on greenhouse gases in Tropical reservoirs. Foz de Iguazu, Brésil. Oct. 2007. Oral Invité.

Abril G. 2007. The biogeochemistry of carbon and atmospheric exchanges in temperate and tropical rivers and estuaries. VII Colloque Ecolab, Macapa, Brésil. Juillet 2007. Keynote lecture. Oral, Invité.

Abril G. 2007. Cycle du carbone et échanges atmosphériques en milieu aquatique continental. 9èmes Journées d’écologie Fonctionnelles. Biarritz. Février 2007. Oral, invité.

Borges, A.V., B. Delille, J.-P. Descy, F. D'Archambeau, B. Leporcq, P. Servais, Marc LLirós, S. Bouillon & G. Abril 2007. Carbon dioxide fluxes in lake Kivu, BELLA workshop, Productivity and ecosystem function of large lakes, 12 June 2007, Brussels, Belgium. Oral (AVB).

Bouillon S., J.J. Middelburg, F. Dehairs, A.V. Borges, G. Abril, M.R. Flindt, S. Ulomi & E. Kristensen 2007. Importance of intertidal sediment processes and porewater exchange on the water column biogeochemistry in a pristine mangrove creek (Ras Dege, Tanzania), 15-20 April 2007, EGU General Assembly, Vienna, Austria. Oral (SB).

Deborde J., Abril G, Canton M., Guérin F., Poirier D., Boucher G., Thouzeau G., Marty D., Anschutz P. 2007. Methane sources, sinks, and atmospheric fluxes in a temperate tidal lagoon. IMBER/LOICZ Continental Margins Open Science Conference, 17-21 September 2007, Shanghai, China. Poster.

Deborde J., Abril G., Mouret A., Anschutz P., 2007. Impacts of eelgrass meadow dynamics on phosphorus and iron cycling in temperate lagoon systems. Gordon Research Conference 2007, 5-10 August, 2007, Tilton School, New Hampshire, USA. Poster

Abril G., Commarieu M.-V. and Guérin F. 2006. Turbidity enhances methane oxidation in an estuary. Open Science Conference on the GHG Cycle in the Northern Hemisphere organised by CarboEurope-IP, CarboOcean and NitroEurope-IP, 14-18 November 2006, Sissi-Lassithi, Crete, Greece. Poster.

Abril G., Maro D., Fontugne M. Moatar F., Siclet F., Commarieu M.V. Guérin F. and Herbert D. 2006. Gas exchange of CO2 in a turbulent and eutrophic river. Open Science Conference on the GHG Cycle in the Northern Hemisphere organised by CarboEurope-IP, CarboOcean and NitroEurope-IP, 14-18 November 2006, Sissi-Lassithi, Crete, Greece. Poster.

Abril G. 2006. Les émissions de CO2 et de CH4 dans le continuum fluvial jusqu’aux estuaires. Séminaires du PIREN-Seine. Oral.

Borges A.V., L. S. Schiettecatte, G. Abril, B. Delille & F. Gazeau, Carbon dioxide in European coastal waters, Open Science Conference on the GHG Cycle in the Northern Hemisphere organised by CarboEurope-IP, CarboOcean and NitroEurope-IP, 14-18 November 2006, Sissi-Lassithi, Crete, Greece. Poster.

Bouillon S., P. Mangion, A.V. Borges, M. Grue, G. Abril, F. Dehairs, S. Ulomi, M.R. Flindt, J. Machiwa, & E. Kristensen, Water column biogeochemistry of a pristine and a human-impacted Tanzanian mangrove system, 2nd Meeting on Mangrove Macrobenthos, 25-30 June 2006, Gold Coast, Australia. Oral (SB).

Borges A.V., L.-S. Schiettecatte, G. Abril, B. Delille & F. Gazeau, Carbon dioxide in European coastal waters, EGU General Assembly, 02–07 April 2006, Vienna, Austria. Oral (AVB).

Anschutz P., Deborde J., Chaillou G., Commarieu M-V, Abril G. 2006. La dynamique des sels nutritifs en système estuarien turbide: exemple de l'estuaire de la Gironde (France). Séminaire "Rencontres autour de l'estuaire" 3 novembre 2006. CEMAGREF, Bordeaux- Cestas (France). Oral (P. Anschutz).

Anschutz P., Deborde J., Abril G., Lecroart P. 2006. Echanges dissous entre l’eau et le sédiment durant un cycle de marée et un cycle saisonnier sur l’estran du Bassin d’Arcachon. Colloque PNEC, juin 2006, Nantes (France). Oral (P. Anschutz).

Guérin, F., R. Delmas, M.P. Bonnet, R. Baïle, P. Marsaleix, C. Delon, S. Richard, G. Abril. 2006. Modeling of CO2 and CH4 emissions by a tropical reservoir (Petit-Saut, French Guiana). Joint IGAC/CACGP/WMO Symposium, 17-23 September 2006, Cape Town, South Africa. Poster.

Bouillon S., P. Mangion, A.V. Borges, M. Grue, G. Abril, F. Dehairs, S. Ulomi, M.R. Flindt, J. Machiwa, & E. Kristensen, 2006. Water column biogeochemistry of a pristine and a human impacted Tanzanian mangrove system, 2nd Meeting on Mangrove Macrobenthos, 25-30 June 2006, Gold Coast, Australia.

Borges A.V., L. S. Schiettecatte, G. Abril, B. Delille & F. Gazeau, 2006. Carbon dioxide in European coastal waters, Open Science Conference on the GHG Cycle in the Northern Hemisphere organised by CarboEurope-IP, CarboOcean and NitroEurope-IP, 14-18 November 2006, Sissi- Lassithi, Crete, Greece.

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Borges A.V., L. S. Schiettecatte, G. Abril, B. Delille & F. Gazeau, 2006. Carbon dioxide in European coastal waters, EGU General Assembly, 02-07 April 2006, Vienna, Austria

Abril G., Maro D. Fontugne M., Moatar F. Etcheber H. and Meybeck M. 2005. Lateral versus vertical carbon fluxes along river-estuary continua: the case of the eutrophic Loire River (France). ASLO summer meeting. June 2005 Santiago de Compostela. Poster.

Commarieu M. V. Abril G., Anschutz P., Guérin F., Deborde J. 2005. Seasonal variability of oxygen and pCO2 in the Garonne and Dordogne tidal Rivers at the entrance of the Gironde estuarine turbidity maximum (SW France). ASLO summer meeting. June 2005 Santiago de Compostela. Oral (MV Commarieu).

Bouillon S., F. Dehairs, G. Abril & A.V. Borges, 2005. Distribution and sources of organic carbon in a mangrove seagrass ecosystem (Gazi Bay, Kenya), European Geosciences Union General Assembly, 24-29 April 2005, Vienna, Austria

Richard S., F. Guérin, G. Abril, R. Delmas, C. Galy-Lacaux, C. Reynouard, B. Burban. (2005) Gross greenhouse gas emissions from Petit-Saut Reservoir (French Guiana). Proceeding of international seminar on greenhouse fluxes from hydro-reservoir & workshop on modeling Greenhouse gas emissions from reservoir at watershed level, Rio de Janeiro, Brazil, 8-12 August 2005. Oral (SR)

Guérin F., Abril G. 2005. Methane oxidation in a tropical reservoir and its river downstream. ASLO summer meeting. June 2005 Santiago de Compostela. Poster.

Anschutz P., Deborde J, Abril G., Deflandre B, Chaillou G., Sundby B. (2005) Sediment-water column exchanges during a tidal cycle in the Arcachon lagoon. (SW-France). ASLO summer meeting. June 2005 Santiago de Compostela. Poster

Deborde J., Anschutz P., Abril G., Chaillou G. (2005) Phosphorus reactivity in turbid estuarine systems: example of the Gironde estuary (SW-France). ASLO summer meeting. June 2005 Santiago de Compostela. Oral (J. Deborde).

Abril G., Guérin F., Richard S. and Delmas R. 2005. Carbon dioxide and methane emissions and the carbon budget of a 10-years old tropical reservoir. 37th International Liège Colloquium on Ocean Dynamics : Gas Transfer At Water Surfaces, May 2005, Liège. Oral (G. Abril).

Guérin F., Abril G., Serça D., Delon C., Richard S., Delmas R., Tremblay A. and Varfalvy L. 2005. Gas transfer velocities in a tropical reservoir and its river downstream: wind speed and rainfall effects. 37th International Liège Colloquium on Ocean Dynamics : Gas Transfer At Water Surfaces, May 2005, Liège. Oral (F. Guérin).

Abril G. 2004. Carbon dioxide and methane emissions from rivers and estuaries. CarboEurope-Freshwater workshop, Dec. 2004, Paris. Oral, invité.

Commarieu MV, Abril G. 2004. Particulate and dissolved respiration in estuarine turbidity maxima. 38ème colloque International de l'Estuarine and Coastal Science Association. Sept. 2004. Poster.

Etcheber H., Taillez A., Abril G., Garnier J., Servais P., Moatar F. and Commarieu M.V. 2004 Particulate organic carbon in the Estuarine Turbidity Maxima of the Gironde, Loire and Seine Estuaries: origin and lability. 38ème colloque International de l'Estuarine and Coastal Science Association. Sept. 2004. Oral (H. Etcheber).

Deborde J, Anschutz P, Abril G. 2004. The Dynamics of phosphorus in turbid estuaries : the case of the Gironde (France). 38ème colloque International de l'Estuarine and coastal Science Association. Sept. 2004. Poster.

Coynel A., Etcheber H., Abril G., Maneux E., Dumas J., Hurtrez J.H 2004. Contribution of small mountainous rivers to particulate organic carbon input in the Bay of Biscay. Colloque d'Océanographie du Golfe de Gascogne. June 2004, Pau. Oral (G. Abril)

Abril G., Commarien MV, Etcheber H., Taillez A 2004. Carbon biogeochemistry in two Atlantic turbid estuaries. EGU first general assembly, April 2004, Nice. Oral (G. Abril).

Commarieu MV, Abril G. 2004. Do oxic/anoxic oscillations in estuarine tubidity maxima accelerate continental particulate organic matter mineralization? An experimental approach in the Gironde. EGU first general assembly, April 2004, Nice. Poster.

Guérin F, Abril G. 2004. Kinetics of methane oxidation in a tropical reservoir (Petit Saut, French Guiana). EGU first general assembly April 2004, Nice. Poster.

Abril G & Etcheber H. 2003. Origine et dégradation de la matière organique particulaire dans l'estuaire de la Seine. Colloque de restitution du Programme Seine-Aval. Oct. 2003 Rouen. Oral (G. Abril).

Borges A.V., Delille B. Schiettecatte L-S, Gazeau F. Abril G. & Frankignoulle M. 2003. Gas transfer velocities of CO2 in three European estuaries (Randers Fjord, Scheldt and Thames). EGS-AGU-EUG Joint assembly. April 2003, Nice. Poster

Abril G. and Iversen N. 2002. Methane dynamics in Randers Fjord, a shallow and non-tidal estuary in Denmark. International symposium on estuarine biogeochemistry. May 2002. Grimstad. Poster.

Robert S., Blanc G., Abril G., Lavaux G. 2001. Metal mobilization in the Fluid Mud of the Gironde Estuary (France) in low discharge regime. EUG XI. April 2001. Poster.

Abril G., Borges A.V. & Frankignoulle M. 2000. Continuous measurements of carbon dioxide in natural waters using an equilibrator. Symposium on greenhouse gases in natural ecosystems, Aalborg University, Denmark. June 2000. Oral (G. Abril). (solicited)

Abril G., Buat-Ménard P., Etcheber H. and Frankignoulle M. 2000. Significance and origin of CO2 emission from European estuaries. Surface Ocean – Lower Atmosphere Study (SOLAS) Open Science Conference, Kiel, Feb. 2000. Poster.

Robert S., Blanc G., Abril G., Schaefer J. 2000. Echanges des phases particulaires-dissoutes des métaux dans l'estuaire de la Gironde. VIIème colloque international d'océanographie du Golfe de Gascogne. Biarritz. 4-6 avril: Oral (S. Robert).

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Abril G. & Frankignoulle M. 1999. Carbon dioxide in macrotidal estuaries. American Society of Limnology and Oceanography (ASLO) annual meeting. 5-9 juin 2000, Copenhague Oral (G. Abril), solicited.

Frankignoulle M., Abreu S. N., Abril G., Amouroux D., De Beer S. and 38 other authors. 1998. Biogas Transfer in Estuaries. Second Annual Scientific ELOISE conference, Huelva, 30 Sept-4 Oct. 1998. Oral (M. Frankignoulle).

Abril G., Etcheber H. and Frankignoulle M. 1999. European estuaries as heterotrophic ecosystems: from organic carbon loss to CO2 atmospheric emissions. Third BIOGEST scientific meeting, Yerseke, April 1999. Oral (G. Abril).

Lemaire E., Abril G., De Wit R. and Etcheber H. 1998. Spatial and temporal variations of plant pigments in the Gironde, Scheldt and Rhine estuaries. Second Annual Scientific ELOISE conference, Huelva, 30 Sept-4 Oct. 1998. Poster.

Abril G., Etcheber H., Le Hir P., Bassoullet P., De Wit R., Riou S. and Frankignoulle M. 1998. Impact of particle vertical dynamics on carbon and nitrogen transformations in the Gironde Estuary. Second BIOGEST scientific meeting, Pau, March 1998. Oral (G. Abril).

Frankignoulle M., G. Abril, I. Bourge & C. Canon. Air-sea CO2 fluxes in European estuaries, Greenhouse gases and impacts on Climate System: The status of research in Europe, Orvieto, Italy, 10-13 November 1997, Poster.

Abril G., H. Etcheber, P. Le Hir, P. Bassoullet P., R. Boutier B., Riou S., De Wit R. & M. Frankignoulle. 1998. Biogeochemistry of a macrotidal estuary (The Gironde, France): Alternating oxic/anoxic processes due to particule dynamics. Second Annual Scientific ELOISE conference, Huelva, Spain, 30 September-4 October 1998. Oral (G. Abril).

Abril G., H. Etcheber, J. Castel & URM13 group. 1997. Biogeochemical gradients associated with fluid mud formation in the Gironde estuary, First Annual Scientifc ELOISE conference, Arcachon, France, May 1997. Poster.

Lemaire E., G. Abril, R. De Wit & H. Etcheber. 1997. Pigments and carotenoids in surface waters from European estuaries, First Annual Scientifc ELOISE conference, Arcachon, France, May 1997. Poster

Amouroux D., C. Peycheyran, H. Pinaly, O.X.F. Donard & G. Abril. 1997. Occurence of natural and anthropogenic volatile metal and metalloid compounds in estuarine environments, First Annual Scientifc ELOISE conference, Arcachon, France, May 1997, oral (D. Amouroux)

Abril G., P. Buat-Menard, J. Castel, H. Etcheber & M. Frankignoulle. 1997. The Gironde estuary: a major heterotrophic system, European Geophysical Society XXII General Assembly, Vienna, Austria, 21-25 April 1997, Oral (G. Abril).