Search Results - "Schoemann, Véronique"

Saccharides enhance iron bioavailability to Southern Ocean phytoplankton by Hassler, Christel S., Schoemann, Véronique, Nichols, Carol Mancuso, Butler, Edward C. V., Boyd, Philip W., Karl, David M.

“…Iron limits primary productivity in vast regions of the ocean. Given that marine phytoplankton contribute up to 40% of global biological carbon fixation, it is…”
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The distribution of dissolved iron in the West Atlantic Ocean by Rijkenberg, Micha J A, Middag, Rob, Laan, Patrick, Gerringa, Loes J A, van Aken, Hendrik M, Schoemann, Véronique, de Jong, Jeroen T M, de Baar, Hein J W

“…Iron (Fe) is an essential trace element for marine life. Extremely low Fe concentrations limit primary production and nitrogen fixation in large parts of the…”
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Natural iron fertilization of the Atlantic sector of the Southern Ocean by continental shelf sources of the Antarctic Peninsula by de Jong, Jeroen, Schoemann, Véronique, Lannuzel, Delphine, Croot, Peter, de Baar, Hein, Tison, Jean-Louis

“…In large parts of the Southern Ocean, primary production is limited due to shortage of iron (Fe). We measured vertical Fe profiles in the western Weddell Sea,…”
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Iron in land-fast sea ice of McMurdo Sound derived from sediment resuspension and wind-blown dust attributes to primary productivity in the Ross Sea, Antarctica by DE JONG, Jeroen, SCHOEMANN, Véronique, MARICQ, Nathalie, MATTIELLI, Nadine, LANGHORNE, Patricia, HASKELL, Timothy, TISON, Jean-Louis

“…We present high-accuracy isotope dilution mass spectrometry data on dissolved Fe (DFe), total dissolvable Fe (TD-Fe) and refractory particulate Fe (REF-Fe)…”
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First report on biological iron uptake in the Antarctic sea-ice environment by Lannuzel, Delphine, Fourquez, Marion, de Jong, Jeroen, Tison, Jean-Louis, Delille, Bruno, Schoemann, Véronique

“…Melting sea ice is a seasonal source of iron (Fe) to the Southern Ocean (SO), where Fe levels in surface waters are otherwise generally too low to support…”
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Distribution of dissolved iron in Antarctic sea ice: Spatial, seasonal, and inter-annual variability by Lannuzel, Delphine, Schoemann, Véronique, de Jong, Jeroen, Pasquer, Bénédicte, van der Merwe, Pier, Masson, Florence, Tison, Jean-Louis, Bowie, Andrew

“…Results from recent field studies in Antarctic sea ice show no clear differences in dissolved iron (dFe) concentrations between pack ice sampled in East…”
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Phaeocystis blooms in the global ocean and their controlling mechanisms: a review by Schoemann, Véronique, Becquevort, Sylvie, Stefels, Jacqueline, Rousseau, Véronique, Lancelot, Christiane

“…Phaeocystis is a genus of marine phytoplankton with a world-wide distribution. It has a polymorphic life cycle alternating free-living cells and colonies but…”
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Distributions of dissolved and particulate iron in the sub-Antarctic and Polar Frontal Southern Ocean (Australian sector) by Lannuzel, Delphine, Bowie, Andrew R., Remenyi, Tomas, Lam, Phoebe, Townsend, Ashley, Ibisanmi, Enitan, Butler, Edward, Wagener, Thibaut, Schoemann, Véronique

“…This paper presents iron (Fe) profiles in the upper 1000 m from nine short-term (transect) stations and three long-term (process) stations occupied in the…”
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Distribution of dissolved and particulate metals in Antarctic sea ice by Lannuzel, Delphine, Bowie, Andrew R., van der Merwe, Pier C., Townsend, Ashley T., Schoemann, Véronique

“…Samples were collected in East Antarctic sea ice in late winter/early austral spring 2007 to assess the distributions of Al, Cr, Mn, Cu, Zn, Mo, Cd and Ba…”
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Iron associated with exopolymeric substances is highly bioavailable to oceanic phytoplankton by Hassler, Christel S., Norman, Louiza, Mancuso Nichols, Carol A., Clementson, Lesley A., Robinson, Charlotte, Schoemann, Véronique, Watson, Roslyn J., Doblin, Martina A.

“…Growth limitation of marine algae due to lack of iron occurs in up to 40% of the global ocean. Despite important advances on the impact of organic compounds on…”
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Iron study during a time series in the western Weddell pack ice by Lannuzel, Delphine, Schoemann, Véronique, de Jong, Jeroen, Chou, Lei, Delille, Bruno, Becquevort, Sylvie, Tison, Jean-Louis

“…Samples of sea ice, snow, brine and underlying seawater were collected in the western Weddell pack ice at the ISPOL drifting station (Ice Station POLarstern,…”
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High-accuracy determination of iron in seawater by isotope dilution multiple collector inductively coupled plasma mass spectrometry (ID-MC-ICP-MS) using nitrilotriacetic acid chelating resin for pre-concentration and matrix separation by de Jong, Jeroen, Schoemann, Véronique, Lannuzel, Delphine, Tison, Jean-Louis, Mattielli, Nadine

“…In the present paper we describe a robust and simple method to measure dissolved iron (DFe) concentrations in seawater down to <0.1 nmol L −1 level, by isotope…”
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Distribution and biogeochemical behaviour of iron in the East Antarctic sea ice by Lannuzel, Delphine, Schoemann, Véronique, de Jong, Jeroen, Tison, Jean-Louis, Chou, Lei

“…We have attempted to evaluate the relative importance, compared to other possible sources, of sea ice in supplying Fe to East Antarctic surface ocean waters…”
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Precise measurement of Fe isotopes in marine samples by multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS) by de Jong, Jeroen, Schoemann, Véronique, Tison, Jean-Louis, Becquevort, Sylvie, Masson, Florence, Lannuzel, Delphine, Petit, Jérôme, Chou, Lei, Weis, Dominique, Mattielli, Nadine

“…A novel analytical technique for isotopic analysis of dissolved and particulate iron (Fe) from various marine environments is presented in this paper. It…”
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Southern Ocean CO2 sink: The contribution of the sea ice by Delille, Bruno, Vancoppenolle, Martin, Geilfus, Nicolas-Xavier, Tilbrook, Bronte, Lannuzel, Delphine, Schoemann, Véronique, Becquevort, Sylvie, Carnat, Gauthier, Delille, Daniel, Lancelot, Christiane, Chou, Lei, Dieckmann, Gerhard S., Tison, Jean-Louis

“…We report first direct measurements of the partial pressure of CO2 (pCO2) within Antarctic pack sea ice brines and related CO2 fluxes across the air‐ice…”
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Iron-limitation and high light stress on phytoplankton populations from the Australian Sub-Antarctic Zone (SAZ) by Petrou, Katherina, Hassler, Christel S., Doblin, Martina A., Shelly, Kirsten, Schoemann, Véronique, van den Enden, Rick, Wright, Simon, Ralph, Peter J.

“…The high nutrient low chlorophyll (HNLC) surface waters of the Southern Ocean are characterised by high concentrations of nitrate and phosphate, low…”
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Discriminating between intra‐ and extracellular metals using chemical extractions: an update on the case of iron by Hassler, Christel S., Schoemann, Véronique

“…Iron influences the climate system by limiting primary productivity. It is therefore essential to accurately measure the iron fraction associated with…”
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Macro-nutrient concentrations in Antarctic pack ice: Overall patterns and overlooked processes by Fripiat, François, Meiners, Klaus M., Vancoppenolle, Martin, Papadimitriou, Stathys, Thomas, David N., Ackley, Stephen F., Arrigo, Kevin R., Carnat, Gauthier, Cozzi, Stefano, Delille, Bruno, Dieckmann, Gerhard S., Dunbar, Robert B., Fransson, Agneta, Kattner, Gerhard, Kennedy, Hilary, Lannuzel, Delphine, Munro, David R., Nomura, Daiki, Rintala, Janne-Markus, Schoemann, Véronique, Stefels, Jacqueline, Steiner, Nadja, Tison, Jean-Louis

“…Antarctic pack ice is inhabited by a diverse and active microbial community reliant on nutrients for growth. Seeking patterns and overlooked processes, we…”
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Development of a sampling and flow injection analysis technique for iron determination in the sea ice environment by Lannuzel, Delphine, de Jong, Jeroen, Schoemann, Véronique, Trevena, Anne, Tison, Jean-Louis, Chou, Lei

“…A trace metal clean method for sampling and analysis of iron is set up and applied to sea ice and its associated snow, brine, and underlying seawater sampled…”
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A first appraisal of prognostic ocean DMS models and prospects for their use in climate models by Le Clainche, Yvonnick, Vézina, Alain, Levasseur, Maurice, Cropp, Roger A., Gunson, Jim R., Vallina, Sergio M., Vogt, Meike, Lancelot, Christiane, Allen, J. Icarus, Archer, Stephen D., Bopp, Laurent, Deal, Clara, Elliott, Scott, Jin, Meibing, Malin, Gill, Schoemann, Véronique, Simó, Rafel, Six, Katharina D., Stefels, Jacqueline

“…Ocean dimethylsulfide (DMS) produced by marine biota is the largest natural source of atmospheric sulfur, playing a major role in the formation and evolution…”
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