Alberto Borges

Seasonal Variability of Carbon Dioxide in the Rivers and Lagoons of Ivory Coast (West Africa) (2009)

Koné, Yéfanlan José-Mathieu, Abril, Gwenaël, Kouadio, K.N., Delille, Bruno, Borges, Alberto

We report partial pressure of CO2 (pCO2) and ancillary data in three rivers (Bia, Tanoé, and Comoé) and five lagoons (Tendo, Aby, Ebrié, Potou, and Grand-Lahou) in Ivory Coast (West Africa),...

Enhanced ocean carbon storage from anaerobic alkalinity generation in coastal sediments (2009)

Suykens, Kim, Koné, Y.M.J., Shadwick, E.H., Prowe, A.E.F., ...

The coastal ocean is a crucial link between land, the open ocean and the atmosphere. The shallowness of the water column permits close interactions between the sedimentary, aquatic and atmospheric...

Effect of eutrophication on air-sea CO2 fluxes in the coastal Southern North Sea: a model study of the past 50 years (2009)

Gypens, N., Borges, Alberto, Lancelot, C.

The RIVERSTRAHLER model, an idealized biogeochemical model of the river system, has been coupled to MIRO-CO2, a complex biogeochemical model describing diatom and Phaeocystis blooms and carbon and...

Reconciling opposing views on carbon cycling in the coastal ocean: continental shelves as sinks and near-shore ecosystems as sources of atmospheric CO2 (2009)

Chen, C.T.A., Borges, Alberto

Despite their moderately-sized surface area, continental marginal seas play a significant role in the biogeochemical cycles of carbon, as they receive huge amounts of upwelled and riverine inputs of...

Mechanisms controlling the air-sea CO2 flux in the North Sea (2009)

Prowe, F.A.E., Thomas, H., Pätsch, J., Bozec, Y., ...

The mechanisms driving the air–sea exchange of carbon dioxide (CO2) in the North Sea are investigated using the three-dimensional coupled physical–biogeochemical model ECOHAM (ECOlogical model,...

Influence of giant kelp beds (Macrocystis pyrifera) on diel cycles of pCO2 and DIC in the Sub-Antarctic coastal area (2008)

Delille, Bruno, Borges, Alberto, Delille, Daniel

The partial pressure of CO2 (pCO2) and dissolved inorganic carbon (DIC) were monitored in shallow coastal waters located inside and outside giant kelp beds (Macrocystis pyrifera) located in the...

Net ecosystem production and carbon dioxide fluxes in the Scheldt estuarine plume (2008)

Borges, Alberto, Ruddick, Kevin, Schiettecatte, Laure-Sophie, Delille, Bruno

Background A time series of 4 consecutive years of measurements of the partial pressure of CO2 (pCO2) in the Scheldt estuarine plume is used here to estimate net ecosystem production (NEP). Results...

Inter-annual variability of the carbon dioxide oceanic sink south of Tasmania (2008)

Borges, Alberto, Tilbrook, B, Metzl, N, Lenton, A, Delille, Bruno

We compiled a large data-set from 22 cruises spanning from 1991 to 2003, of the partial pressure of CO2 (pCO(2)) in surface waters over the continental shelf (CS) and adjacent open ocean (43 degrees...

Dissolved inorganic carbon dynamics in the waters surrounding forested mangroves of the Ca Mau Province (Vietnam) (2008)

Koné, JM, Borges, Alberto

Dissolved inorganic carbon (DIC) and ancillary data were obtained during the dry and rainy seasons in the waters surrounding two 10-yearold forested mangrove sites (Tam Giang and Kieˆn Va`ng)...

Mangrove production and carbon sinks: a revision of global budget estimates (2008)

Bouillon, Steven, Borges, Alberto, Castañeda-Moya, Edward, Diele, Karen, Dittmar, Thorsten, Duke, Norman C., ...

Mangrove forests are highly productive but globally threatened coastal ecosystems, whose role in the carbon budget of the coastal zone has long been debated. Here we provide a comprehensive synthesis...

The impact of lateral carbon fluxes on the European carbon balance (2008)

Ciais, P, Borges, Alberto, Abril, Gwenaël, Meybeck, M, Folberth, G, Hauglustaine, D, ...

To date, little is known about the impact of processes which cause lateral carbon fluxes over continents, and from continents to oceans on the CO2 – and carbon budgets at local, regional and...

Emission of CO2 and CH4 to the atmosphere by sediments and open waters in two Tanzanian mangrove forests (2008)

Kristensen, Erik, Flindt, Mogens R., Ulomi, Shadrack, Borges, Alberto, Abril, Gwenaël, Bouillon, Steven

Carbon gas balance was evaluated in an anthropogenically impacted (Mtoni) and a pristine (Ras Dege) mangrove forest in Tanzania. Exchange of carbon dioxide (CO2) was measured for inundated and...

Carbon biogeochemistry of the Betsiboka Estuary (north-western Madagascar) (2008)

Ralison, Olivier Harifidy, Borges, Alberto, Dehairs, Frank, Bouillon, Steven

Madagascar’s largest estuary (Betsiboka) was sampled along the salinity gradient during the dry season to document the distribution and sources of particulate and dissolved organic carbon (POC,...

Biogas (CO2, O-2, dimethylsulfide) dynamics in spring Antarctic fast ice (2007)

Delille, Bruno, Jourdain, B, Borges, Alberto, Tison, JL, Delille, D

We studied the temporal variations of CO2, O-2, and dimethylsulfide (DMS) concentrations within three environments (sea-ice brine, platelet ice-like layer, and underlying water) in the coastal area...

Biogeochemistry of the Tana estuary and delta (northern Kenya) (2007)

Bouillon, Steven, Dehairs, Frank, Schiettecatte, Laure-Sophie, Borges, Alberto

The estuarine mixing zone of the Tana River (northern Kenya) and an extensive deltaic area just south of the estuary were sampled in April 2004 with the aim of identifying the distribution, sources,...

Carbon dioxide dynamics in rivers and coastal waters of the ABig Island@ of Hawaii, USA, during baseline and heavy rain condition (2007)

Paquay, FS, Mackenzie, FT, Borges, Alberto

The distributions of the partial pressure of carbon dioxide (pCO2) and total alkalinity (TA) were examined for a 6-month period in the Wailuku and Wailoa rivers and coastal waters of Hilo Bay on the...

Dynamics of organic and inorganic carbon across contiguous mangrove and seagrass systems (Gazi bay, Kenya) (2007)

Bouillon, Steven, Dehairs, Frank, Velimirov, Branko, Abril, Gwenaël, Borges, Alberto

We report on the water column biogeochemistry in adjacent mangrove and seagrass systems in Gazi Bay (Kenya), with a focus on assessing the sources and cycling of organic and inorganic carbon....

Importance of intertidal sediment processes and porewater exchange on the water column biogeochemistry in a pristine mangrove creek (Ras Dege, Tanzania) (2007)

Bouillon, Steven, Middelburg, Jack J., Dehairs, Frank, Borges, Alberto, Abril, Gwenaël, Flindt, Mogens R., ...

We sampled a tidal creek (Ras Dege, Tanzania) during a 24-h cycle to document the variations in a suite of creek water column characteristics and to determine the relative influence of tidal and...

An artificial neural network analysis of factors controlling ecosystem metabolism in the coastal ocean (2007)

Rochelle Newall, Emma J., Winter, Christian, Barrón, Cristina, Borges, Alberto, Duarte, Carlos M., Elliott, Mike, ...

Knowing the metabolic balance of an ecosystem is of utmost importance in determining whether the system is a net source or net sink of carbon dioxide to the atmosphere. However, obtaining these...

High temporal coverage of carbon dioxide measurements in the Southern Bight of the North Sea (2007)

Schiettecatte, LS, Thomas, H, Bozec, Y, Borges, Alberto

A monthly survey of the partial pressure of CO2 (pCO2) was carried in the Southern Bight of the North Sea (SBNS) from June 2003 to May 2004. The spatial variability of the surface distribution of the...

Rapid decline of the CO2 buffering capacity in the North Sea and implications for the North Atlantic Ocean (2007)

Thomas, Helmuth, Prowe, A. E. Friederike, Van Heuven, Steven, Bozec, Yann, Schiettecatte, Laure-Sophie, ...

New observations from the North Sea, a NW European shelf sea, show that between 2001 and 2005 the CO2 partial pressure (pCO2) in surface waters rose by 22 matm, thus faster than atmospheric pCO2,...

Carbon dioxide in European coastal waters (2006)

Borges, Alberto, Schiettecatte, LS, Abril, Gwenaël, Delille, Bruno, Gazeau, Frédéric

We compiled from literature annually integrated air-water fluxes of carbon dioxide (CO2) computed from field measurements, in 20 coastal European environments that were gathered into 3 main...

Time series of the partial pressure of carbon dioxide (2001 2004) and preliminary inorganic carbon budget in the Scheldt plume (Belgian coast waters) (2006)

Schiettecatte, Laure-Sophie, Gazeau, Frédéric, Van Der Zee, Claar, Brion, Natacha, Borges, Alberto

A 4-year time series (2001–2004) of the partial pressure of CO2 (pCO2) and air-sea CO2 fluxes is reported in the Scheldt estuarine plume. This system is oversaturated in CO2 with respect to the...

Organic carbon metabolism and carbonate dynamics in a Mediterranean seagrass (Posidonia oceanica) meadow (2006)

Barrón, Cristina, Duarte, Carlos M., Frankignoulle, Michel, Borges, Alberto

in a Posidonia oceanica meadow and unvegetated sediments of Magalluf Bay (Mallorca Island, Spain) to determine gross primary production (GPP), community respiration (R), and net community production...

Assessment of the processes controlling the seasonal variations of dissolved inorganic carbon in the North Sea (2006)

Bozec, Y, Thomas, H, Schiettecatte, LS, Borges, Alberto, Elkalay, K, De Baar, HJW

We used a seasonal North Sea data set comprising dissolved inorganic carbon (DIC), partial pressure of CO2 (pCO2), and inorganic nutrients to assess the abiotic and biological processes governing the...

Budgeting sinks and sources of CO2 in the coastal ocean: Diversity of ecosystems counts (2005)

Borges, Alberto, Delille, Bruno, Frankignoulle, M

Air-water CO2 fluxes were up-scaled to take into account the latitudinal and ecosystem diversity of the coastal ocean, based on an exhaustive literature survey. Marginal seas at high and temperate...

Response of primary production and calcification to changes of pCO(2) during experimental blooms of the coccolithophorid Emiliania huxleyi (2005)

Delille, Bruno, Harlay, Jérôme, Zondervan, Ingrid, Stephan, Jacquet, Chou, Lei, Wollast, Roland, ...

[1] Primary production and calcification in response to different partial pressures of CO2 (PCO2) ("glacial,'' "present,'' and "year 2100'' atmospheric CO2 concentrations) were investigated during a...

The Carbon budget of the North Sea (2005)

Thomas, H, Bozec, Y, De Baar, HJW, Elkalay, K, Frankignoulle, M, Schiettecatte, LS, ...

A carbon budget has been established for the North Sea, a shelf sea on the NW European continental shelf. The carbon exchange fluxes with the North Atlantic Ocean dominate the gross carbon budget....

Net ecosystem metabolism in a micro-tidal estuary (Randers Fjord, Denmark): evaluation of methods (2005)

Gazeau, Frédéric, Borges, Alberto, Barrón, Cristina, Duarte, Carlos M., Iversen, Niels, Middelburg, Jack J., ...

The metabolic status, the difference between organic matter production and consumption of an estuary (Randers Fjord, Denmark) has been assessed based on 2 field cruises in April and August 2001 and a...

Whole-system metabolism and CO2 fluxes in a Mediterranean Bay dominated by seagrass beds (Palma Bay, NW Mediterranean) (2005)

Gazeau, Frédéric, Duarte, CM, Gattuso, Jean-Pierre, Barrón, Cristina, Navarro, N, Ruiz, S, ...

Planktonic and benthic incubations (bare and Posidonia oceanica vegetated sediments) were performed at monthly intervals from March 2001 to October 2002 in a seagrass vegetated area of the Bay of...

Do we have enough pieces of the jigsaw to integrate CO2 fluxes in the Coastal Ocean ? (2005)

Borges, Alberto

Annually integrated air-water CO2 flux data in 44 coastal environments were compiled from literature. Data were gathered in 8 major ecosystems (inner estuaries, outer estuaries, whole estuarine...

Planktonic and whole system metabolism in a nutrient rich estuary (the Scheldt estuary) (2005)

Gazeau, Frédéric, Gattuso, Jean-Pierre, Middelburg, Jack J., Brion, Natacha, Schiettecatte, Laure-Sophie, Frankignoulle, Michel, ...

Planktonic gross primary production (GPP), community respiration (CR), and nitrification (NIT) were measured monthly in the Scheldt estuary by the oxygen incubation method in 2003. No significant...

Controls of the surface water partial pressure of CO2 in the North Sea (2005)

Thomas, H, Bozec, Y, Borges, Alberto, Schiettecatte, LS

The seasonal variability of the partial pressure of CO2 (pCO2) has been investigated in the North Sea, a northwest European shelf sea. Based on a seasonal and high spatial resolution data set the...

Whole system metabolism and CO2 fluxes in a Mediterranean Bay dominated by seagrass beds (Palma Bay, NW Mediterranean) (2005)

Gazeau, Frédéric, Duarte, CM, Gattuso, Jean-Pierre, Barrón, Cristina, Navarro, N, Ruíz, S, ...

Planktonic and benthic incubations (bare and Posidonia oceanica vegetated sediments) were performed at monthly intervals from March 2001 to October 2002 in a seagrass vegetated area of the Bay of...

Gas transfer velocities of CO2 in three European estuaries (Randers Fjord, Scheldt, and Thames) (2004)

Borges, Alberto, Delille, Bruno, Schiettecatte, Laure-Sophie, Gazeau, Frédéric, Abril, Gwenaël, Frankignoulle, Michel

We measured the flux of CO2 across the air-water interface using the floating chamber method in three European estuaries with contrasting physical characteristics (Randers Fjord, Scheldt, and...

Variability of the gas transfer velocity of CO2 in a macrotidal estuary (the Scheldt) (2004)

Borges, Alberto, Vanderborght, Jean-Pierre, Schiettecatte, Laure-Sophie, Gazeau, Frédéric, Ferrón-Smith, Sarah, Delille, Bruno, ...

We report a large set of 295 interfacial carbon dioxide (CO2) flux measurements obtained in the Scheldt estuary in November 2002 and April 2003, using the floating chamber method. From concomitant...

Carbon dynamics and CO2 air-sea exchanges in the eutrophicated coastal waters of the Southern Bight of the North Sea: a modelling study (2004)

Gypens, N., Lancelot, Christiane, Borges, Alberto

A description of the carbonate system has been incorporated in the MIRO biogeochemical model to investigate the contribution of diatom and Phaeocystis blooms to the seasonal dynamics of air-sea CO2...

Variability of the gas transfer velocity of CO2 in a macrotidal estuary (The Scheldt) (2004)

Borges, Alberto, Vandenborght, Jean-Pierre, Schiettecatte, Laure-Sophie, Gazeau, Frédéric, Ferrón-Smith, Sarah, Delille, Bruno, ...

We report a large set of 295 interfacial carbon dioxide (CO2) flux measurements obtained in the Scheldt estuary in November 2002 and April 2003, using the floating chamber method. From concomitant...

Gas transfer velocities of CO2 in three European estuaries (Randers Fjord, Scheldt and Thames) (2004)

Borges, Alberto, Delille, Bruno, Schiettecatte, Laure-Sophie, Gazeau, Frédéric, Abril, Gwenaël, Frankignoulle, Michel

We measured the flux of CO2 across the air–water interface using the floating chamber method in three European estuaries with contrasting physical characteristics (Randers Fjord, Scheldt, and...

Atmospheric CO2 flux from mangrove surrounding waters (2003)

Borges, Alberto, Djenidi, Salim, Lacroix, Geneviève, Theate, Jean-Marie, Delille, Bruno, Frankignoulle, Michel

[1] The partial pressure of CO2 (pCO(2)) was measured at daily and weekly time scales in the waters surrounding mangrove forests in Papua New Guinea, the Bahamas and India. The pCO(2) values range...

Carbonate dissolution in the turbid and eutrophic Loire estuary (2003)

Abril, Gwenaël, Etcheber, Henri, Delille, Bruno, Frankignoulle, Michel, Borges, Alberto

We measured particulate and dissolved organic carbon (POC and DOC), chlorophyll, oxygen, partial pressure of Co-2, pH, total alkalinity (TAlk) and particulate inorganic carbon (PIC) during a late...

The Portugal coastal counter current off NW Spain: new insights on its biogeochemical variability (2003)

Alvarez-Salgado, Xosé Antón, Figueiras, FG, Perez, FF, Groom, S, Nogueira, E, Borges, Alberto, ...

Time series of wind-stress data, AVHRR and SeaWiFS satellite images, and in situ data from seven cruises are used to assemble a coherent picture of the hydrographic variability of the seas off the...

Distribution of surface carbon dioxide and air-sea exchange in the English Channel and adjacent areas (2003)

Borges, Alberto, Frankignoulle, Michel

In the present paper we report the distribution of the partial pressure of CO2 (pCO2) in surface waters along 13 transects in the English Channel, covering the four seasons. The spatial and temporal...

Inorganic and organic carbon biogeochemistry in the Gautami Godavari estuary (Andhra Pradesh, India) during pre-monsoon : the local impact of extensive mangrove forests (2003)

Bouillon, Steven, Frankignoulle, Michel, Dehairs, Frank, Velimirov, Branko, Eiler, Alexander, Abril, Gwenaël, ...

[1] The distribution and sources of organic and inorganic carbon were studied in the Gautami Godavari estuary (Andhra Pradesh, India) and in a mangrove ecosystem in its delta during pre-monsoon. In...

Carbon dioxide daily variations and atmospheric fluxes over the Great Bahama Bank using a novel autonomous measuring system (2003)

Frankignoulle, Michel, Biondo, Renzo, Théate, Jean-Marie, Borges, Alberto

A novel autonomous measuring device that acquires the partial pressure of CO2 (pCO2) by equilibration and several other parameters is described. This device, the Floating Equilibrator System (FES)...

Distribution and air-water exchange of carbon dioxide in the Scheldt plume off the Belgian coast (2002)

Borges, Alberto, Frankignoulle, Michel

In the present paper we report partial pressure of CO2 (pCO2) data obtained off the Belgian coast during 24 cruises. The temporal and spatial resolution of this data set allows us to discuss...

Aspects of inorganic carbon dynamics in the upwelling system off the Galician coast (2002)

Borges, Alberto, Frankignoulle, Michel

In the present paper, we report data on the partial pressure of CO2 ( pCO2) in surface seawater off the Galician coast, obtained during four cruises carried out in summer (upwelling conditions). Over...

Distribution of surface carbon dioxide and air-sea exchange in the upwelling system off the Galician coast (2002)

Borges, Alberto, Frankignoulle, Michel

Data on the distribution of the partial pressure of CO2 (pCO2) were obtained during six cruises off the Galician coast, a region characterized by a seasonal upwelling. The values of pCO2 over the...

Short-term variations of the partial pressure of CO2 in surface waters of the Galician upwelling system (2001)

Borges, Alberto, Frankignoulle, Michel

The partial pressure of CO2 (pCO2) and dissolved oxygen saturation level (%O2) were monitored continuously during a cruise in August 1998, which sampled surface waters off the Galician coast. Data...

The European Continental Shelf as a Significant sink for Atmospheric Carbon Dioxide (2001)

Frankignoulle, Michel, Borges, Alberto

The concentration of carbon dioxide was measured during 18 cruises in the surface waters of the North Atlantic European Shelf (Galician sea, Gulf of Biscay, Armorican Sea, Celtic Sea, English...

Direct and indirect pCO2 measurements in a wide range of pCO2 and salinity values (2001)

Frankignoulle, Michel, Borges, Alberto

Recent improvements in both Infra-red spectroscopy and equilibrator techniques have allowed to determine, for the first time, pCO2 using simultaneously and continuously both the direct and indirect...

Off Shelf Fluxes of Labile Materials by an Upwelling Filament in the NW Iberian Upwelling System (2001)

Alvarez-Salgado, Xosé Antón, Doval, MD, Borges, Alberto, Joint, I, Frankignoulle, M, Woodward, EMS, ...

Daily changes in the concentrations of carbon and nitrogen species were monitored during the course of a Lagrangian drifter experiment in a recurrent upwelling filament south of Cape Finisterre (NW...

A New Design of Equilibrator to Monitor Carbon Dioxide in Highly Dynamic and Turbid Environments (2001)

Frankignoulle, M, Borges, Alberto, Biondo, Renzo

A new design of equilibrator for carbon dioxide monitoring in natural waters is described. It consists in a vertical tube filled with marbles through which water is flowing while equilibrating with a...

Excess atmospheric carbon dioxide transported by rivers into the Scheldt Estuary (2000)

Abril, Gwenaël, Etcheber, Henri, Borges, Alberto, Frankignoulle, Michel

The transport of excess atmospheric CO2 (defined as the fraction of dissolved inorganic carbon (DIC) that can escape as CO2 to the atmosphere due to water-air equilibration), by the five rivers...

Daily and seasonal variations of the partial pressure of CO2 in surface seawater along the Belgian and southern Dutch coastal areas (1999)

Borges, Alberto, Frankignoulle, Michel

The variations of the partial pressure of CO2 pCO2.and related parameters were determined in surface seawater along the Belgian coast, from January 1995 to June 1996, at both daily and seasonal time...

Carbon Dioxide Emission from European Estuaries (1998)

Frankignoulle, Michel, Abril, Gwenaël, Borges, Alberto, Bourge, Isabelle, Canon, Christine, Delille, Bruno, ...

The partial pressure of carbon dioxide (pCO2) in surface waters and related atmospheric exchanges were measured in nine European estuaries. Averaged fluxes over the entire estuaries are usually in...