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Phytoplankton in the Bay of Seine (France). Influence of the river plume on primary productivity.

C Videau , M Ryckaert , Stéphane L'Helguen
Oceanologica Acta, 1998, 21 (6), pp.907-921. ⟨10.1016/S0399-1784(99)80015-2⟩
Article dans une revue hal-02315182v1
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Barium and molybdenum records in bivalve shells: Geochemical proxies for phytoplankton dynamics in coastal environments?

Julien Thébault , Laurent Chauvaud , Stéphane L'Helguen , Jacques Clavier , Aurélie Barats , et al.
Limnology and Oceanography : methods, 2009, 54 (3), pp.1002-1014. ⟨10.4319/lo.2009.54.3.1002⟩
Article dans une revue hal-00449364v1
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Quorum Sensing Regulates Bacterial Processes That Play a Major Role in Marine Biogeochemical Cycles

Marion Urvoy , Claire Labry , Stéphane l'Helguen , Raphaël Lami
Frontiers in Marine Science, 2022, 9, pp.834337. ⟨10.3389/fmars.2022.834337⟩
Article dans une revue hal-03813925v1

Correction: Response of the Unicellular Diazotrophic Cyanobacterium Crocosphaera watsonii to Iron Limitation (vol 9, e86749, 2014)

Violaine Jacq , Céline Ridame , Stéphane L'Helguen , Fanny Kaczmar , Alain Saliot
PLoS ONE, 2014, 9 (4), pp.e86749. ⟨10.1371/journal.pone.0092655⟩
Article dans une revue hal-02315169v1

Seasonal patterns of ammonium regeneration from size-fractionated microheterotrophs

Jean-François Maguer , Stéphane L'Helguen , C Madec , P Le Corre
Continental Shelf Research, 1999, 19 (14), pp.1755-1770. ⟨10.1016/S0278-4343(99)00037-0⟩
Article dans une revue istex hal-02315180v1

Nitrogen dynamics in coastal systems: coastal system with strong vertical mixing

Stéphane L'Helguen , Jean-François Maguer , C Madec , P Le Corre
BIOGEOCHIMIE MARINE, Dec 2002, 195 RUE SAINT-JACQUES, 75005 PARIS, France. pp.661-686
Communication dans un congrès hal-02315177v1

On the presence of a cadmium-rich subsurface water mass in the western Mediterranean and its influence on the distribution of cadmium in the surface waters

Ricardo D. Riso , P Le Corre , Stéphane L'Helguen , P Morin
Marine Chemistry, 2004, 87 (1-2), pp.15-22. ⟨10.1016/S0304-4203(03)00115-4⟩
Article dans une revue istex hal-02315175v1

Quantitative determination of particulate organic N and C in marine phytoplankton samples using mass spectrometer signals from isotope ratio analyses in N-15 tracer and C-13 tracer studies

G Slawyk , Stéphane L'Helguen , Y Collos , H Freije
Journal of Experimental Marine Biology and Ecology, 1988, 115 (2), pp.187-195. ⟨10.1016/0022-0981(88)90103-7⟩
Article dans une revue istex hal-02315191v1

RECOVERY OF UREA NITROGEN FROM SEAWATER FOR MEASUREMENT OF N-15 ABUNDANCE IN UREA REGENERATION STUDIES USING THE ISOTOPE-DILUTION APPROACH

G Slawyk , P Raimbault , Stéphane L'Helguen
Marine Chemistry, 1990, 30 (4), pp.343-362. ⟨10.1016/0304-4203(90)90080-V⟩
Article dans une revue istex hal-02315190v1
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Inorganic and organic carbon and nitrogen uptake strategies of picoplankton groups in the northwestern Atlantic Ocean

Hugo Berthelot , Solange Duhamel , Stéphane L'Helguen , Jean‐françois Maguer , Nicolas Cassar
Limnology and Oceanography, 2021, 66 (10), pp.3682-3696. ⟨10.1002/lno.11909⟩
Article dans une revue hal-03827246v1
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NanoSIMS single cell analyses reveal the contrasting nitrogen sources for small phytoplankton

Hugo Berthelot , Solange Duhamel , Stéphane L'Helguen , Jean-François Maguer , Seaver Wang , et al.
The International Society of Microbiologial Ecology Journal, 2019, 13 (3), pp.651-662. ⟨10.1038/s41396-018-0285-8⟩
Article dans une revue hal-02315056v1
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Strong stimulation of N2 fixation in oligotrophic Mediterranean Sea: results from dust addition in large in situ mesocosms

Céline Ridame , Cécile Guieu , Stéphane L'Helguen
Biogeosciences, 2013, 10, pp.7333-7346. ⟨10.5194/BG-10-7333-2013⟩
Article dans une revue hal-00952675v1
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Potential effects of deep seawater discharge by an Ocean Thermal Energy Conversion plant on the marine microorganisms in oligotrophic waters

Mélanie Giraud , Véronique Garçon , Denis de La Broise , Joël Sudre , Stéphane L'Helguen , et al.
Science of the Total Environment, 2019, 693, pp.133491. ⟨10.1016/j.scitotenv.2019.07.297⟩
Article dans une revue hal-02337618v1
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Quorum sensing disruption regulates hydrolytic enzyme and biofilm production in estuarine bacteria

Marion Urvoy , Raphaël Lami , Catherine Dreanno , David Daudé , Alice M S Rodrigues , et al.
Environmental Microbiology, 2021, 23 (11), pp.7183-7200. ⟨10.1111/1462-2920.15775⟩
Article dans une revue hal-03814177v1

Nitrogen uptake and assimilation kinetics in Alexandrium minutum (Dynophyceae): effect of N-limited growth rate on nitrate and ammonium interactions

Jean-François Maguer , Stéphane L'Helguen , Christian Madec , Claire Labry , Pierre Le Corre
Journal of Phycology, 2007, 43, pp.295-303. ⟨10.1111/j.1529-8817.2007.00334.x⟩
Article dans une revue istex hal-00633672v1
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Size-dependent uptake of nitrate and ammonium as a function of light in well-mixed temperate coastal waters

Jean-François Maguer , Stéphane L'Helguen , Julien Caradec , Cécile Klein
Continental Shelf Research, 2011, 31 (15), pp.1620-1631. ⟨10.1016/j.csr.2011.07.005⟩
Article dans une revue hal-00636263v1

NITROGEN NUTRITION OF THE PHYTOPLANKTON IN THE WELL-MIXED WATERS OF THE WESTERN ENGLISH-CHANNEL

Stéphane L'Helguen , C Madec , P Lecorre
Oceanologica Acta, 1993, 16 (5-6), pp.653-660
Article dans une revue hal-02315188v1
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Tracing the fate of seabird‐derived nitrogen in a coral reef using nitrate and coral skeleton nitrogen isotopes

Noémie Choisnard , Nicolas Noel Duprey , Tanja Wald , Martin Thibault , Fanny Houlbrèque , et al.
Limnology and Oceanography, 2024, 69 (2), pp.309-324. ⟨10.1002/lno.12485⟩
Article dans une revue hal-04534004v1
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Quorum Sensing Regulates the Hydrolytic Enzyme Production and Community Composition of Heterotrophic Bacteria in Coastal Waters

Marion Urvoy , Raphaël Lami , Catherine Dreanno , Daniel Delmas , Stéphane L'Helguen , et al.
Frontiers in Microbiology, 2021, 12, pp.780759. ⟨10.3389/fmicb.2021.780759⟩
Article dans une revue hal-03510738v1
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Microbial enzymatic assays in environmental water samples: Impact of inner filter effect and substrate concentrations

Marion Urvoy , Claire Labry , Daniel Delmas , Layla Creac'H , Stéphane L'Helguen
Limnology and Oceanography: Methods, 2020, 18, pp.725-738. ⟨10.1002/lom3.10398⟩
Article dans une revue hal-02989835v1
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Data quality control considerations in multivariate environmental monitoring: experience of the French coastal network SOMLIT

Elsa Breton , Nicolas Savoye , Peggy Rimmelin-Maury , Benoit Sautour , Eric Goberville , et al.
Frontiers in Marine Science, 2023, 10, pp.12. ⟨10.3389/fmars.2023.1135446⟩
Article dans une revue hal-04083118v1

Effects of mixing-induced irradiance fluctuations on nitrogen uptake in size-fractionated coastal phytoplankton communities

Jean-François Maguer , Stéphane L'Helguen , Matthieu Waeles
Estuarine, Coastal and Shelf Science, 2015, 154, pp.1-11. ⟨10.1016/j.ecss.2014.12.008⟩
Article dans une revue hal-01102866v1

Nitrogen uptake in permanently well-mixed temperate coastal waters

Stéphane L'Helguen , C Madec , P Lecorre
Estuarine, Coastal and Shelf Science, 1996, 42 (6), pp.803-818. ⟨10.1006/ecss.1996.0051⟩
Article dans une revue istex hal-02315183v1

New and regenerated production in the Almeria-Oran front area, eastern Alboran Sea

Stéphane L'Helguen , P Le Corre , C Madec , P Morin
Deep Sea Research Part I: Oceanographic Research Papers, 2002, 49 (1), pp.83-99. ⟨10.1016/S0967-0637(01)00044-9⟩
Article dans une revue istex hal-02315178v1

F-ratios calculated with and without urea uptake in nitrogen uptake by phytoplankton

Mvm Wafar , P Lecorre , Stéphane L'Helguen
Deep-sea research. Part A, Oceanographic research papers, 1995, 42 (9), pp.1669-1674. ⟨10.1016/0967-0637(95)00066-F⟩
Article dans une revue istex hal-02315185v1

Seasonal patterns of urea regeneration by size-fractionated microheterotrophs in well-mixed temperate coastal waters

Stéphane L'Helguen , G Slawyk , P Le Corre
Journal of Plankton Research, 2005, 27 (3), pp.263-270. ⟨10.1093/plankt/fbh174⟩
Article dans une revue hal-02315172v1

Uptake and regeneration of nitrogen in the well-mixed waters of the English Channel: new and regenerated productions.

Jean-François Maguer , Stéphane L'Helguen , C Madec , P Le Corre
Oceanologica Acta, 1998, 21 (6), pp.861-870. ⟨10.1016/S0399-1784(99)80012-7⟩
Article dans une revue hal-02315181v1

Large and local-scale influences on physical and chemical characteristics of coastal waters of Western Europe during winter

Paul Tréguer , Eric Goberville , Nicolas Barrier , Stéphane L'Helguen , Pascal Morin , et al.
Journal of Marine Systems, 2014, 139, pp.79-90. ⟨10.1016/j.jmarsys.2014.05.019⟩
Article dans une revue hal-02330574v1
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The biogeochemistry of cobalt in the Mediterranean Sea

Gabriel Dulaquais , Hélène Planquette , Stéphane L'Helguen , Micha J A Rijkenberg , Marie Boye
Global Biogeochemical Cycles, 2017, 31 (2), pp.377-399. ⟨10.1002/2016GB005478⟩
Article dans une revue hal-02332035v1
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Nutrient control of N2 fixation in the oligotrophic Mediterranean Sea and the impact of Saharan dust events

Céline Ridame , M. Le Moal , Cécile Guieu , E. Ternon , Isabelle C. Biegala , et al.
Biogeosciences, 2011, 8, pp.2773-2783. ⟨10.5194/bg-8-2773-2011⟩
Article dans une revue hal-00674600v1