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Stephane L'Helguen
Stephane L'Helguen
CNRS
Adresse e-mail validée de univ-brest.fr
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Barium and molybdenum records in bivalve shells: Geochemical proxies for phytoplankton dynamics in coastal environments?
J Thébault, L Chauvaud, SÉ L'Helguen, J Clavier, A Barats, S Jacquet, ...
Limnology and Oceanography 54 (3), 1002-1014, 2009
1202009
Dynamics of particulate organic matter composition in coastal systems: A spatio-temporal study at multi-systems scale
C Liénart, N Savoye, Y Bozec, E Breton, P Conan, V David, E Feunteun, ...
Progress in Oceanography 156, 221-239, 2017
862017
NanoSIMS single cell analyses reveal the contrasting nitrogen sources for small phytoplankton
H Berthelot, S Duhamel, S L’helguen, JF Maguer, S Wang, I Cetinić, ...
The ISME Journal 13 (3), 651-662, 2019
752019
Nutrient control of N2 fixation in the oligotrophic Mediterranean Sea and the impact of Saharan dust events
C Ridame, M Le Moal, C Guieu, E Ternon, IC Biegala, S L'Helguen, ...
Biogeosciences 8 (9), 2773-2783, 2011
702011
Dynamics of N2 fixation and fate of diazotroph-derived nitrogen in a low-nutrient, low-chlorophyll ecosystem: results from the VAHINE mesocosm experiment (New …
S Bonnet, H Berthelot, K Turk-Kubo, S Fawcett, E Rahav, S L'Helguen, ...
Biogeosciences 13 (9), 2653-2673, 2016
692016
Nitrogen-source for uptake by gyrodinium cf aureolum in a tidal front
P Lecorre, S L'Helguen, M Wafar
Limnology and oceanography 38 (2), 446-451, 1993
671993
Inhibition kinetics of nitrate uptake by ammonium in size-fractionated oceanic phytoplankton communities: implications for new production and f-ratio estimates
S L'Helguen, JF Maguer, J Caradec
Journal of Plankton Research 30 (10), 1179-1188, 2008
662008
NITROGEN UPTAKE AND ASSIMILATION KINETICS IN ALEXANDRIUM MINUTUM (DYNOPHYCEAE): EFFECT OF N‐LIMITED GROWTH RATE ON NITRATE AND …
JF Maguer, S L'Helguen, C Madec, C Labry, P Le Corre
Journal of Phycology 43 (2), 295-303, 2007
652007
Nitrogen uptake in permanently well-mixed temperate coastal waters
S L'Helguen, C Madec, P Le Corre
Estuarine, Coastal and Shelf Science 42 (6), 803-818, 1996
621996
Contrasted Saharan dust events in LNLC environments: impact on nutrient dynamics and primary production
C Ridame, J Dekaezemacker, C Guieu, S Bonnet, S L'Helguen, F Malien
Biogeosciences 11 (17), 4783-4800, 2014
592014
Dinitrogen fixation and dissolved organic nitrogen fueled primary production and particulate export during the VAHINE mesocosm experiment (New Caledonia lagoon)
H Berthelot, T Moutin, S L'Helguen, K Leblanc, S Hélias, O Grosso, ...
Biogeosciences 12 (13), 4099-4112, 2015
562015
Response of the unicellular diazotrophic cyanobacterium Crocosphaera watsonii to iron limitation
V Jacq, C Ridame, S l'Helguen, F Kaczmar, A Saliot
Plos one 9 (1), e86749, 2014
562014
Longitudinal variability of the biogeochemical role of Mediterranean aerosols in the Mediterranean Sea
E Ternon, C Guieu, C Ridame, S L'Helguen, P Catala
Biogeosciences 8 (5), 1067-1080, 2011
552011
New and regenerated production in the Almeria-Oran front area, eastern Alboran Sea
S L’Helguen, P Le Corre, C Madec, P Morin
Deep Sea Research Part I: Oceanographic Research Papers 49 (1), 83-99, 2002
542002
Large and local-scale influences on physical and chemical characteristics of coastal waters of Western Europe during winter
P Tréguer, E Goberville, N Barrier, S l'Helguen, P Morin, Y Bozec, ...
Journal of Marine Systems 139, 79-90, 2014
482014
Nitrogen uptake by size-fractionated plankton in permanently well-mixed temperate coastal waters
M Wafar, S L’Helguen, V Raikar, JF Maguer, PL Corre
Journal of plankton research 26 (10), 1207-1218, 2004
452004
Strong stimulation of N2 fixation in oligotrophic Mediterranean Sea: results from dust addition in large in situ mesocosms
C Ridame, C Guieu, S L'Helguen
Biogeosciences 10 (11), 7333-7346, 2013
382013
ƒ-Ratios calculated with and without urea uptake in nitrogen uptake by phytoplankton
MVM Wafar, P Le Corre, S L'Helguen
Deep Sea Research Part I: Oceanographic Research Papers 42 (9), 1669-1674, 1995
381995
Size-fractionated phytoplankton biomass and nitrogen uptake in response to high nutrient load in the North Biscay Bay in spring
JF Maguer, S L’Helguen, M Waeles, P Morin, R Riso, J Caradec
Continental Shelf Research 29 (8), 1103-1110, 2009
372009
Dynamics of particulate organic matter composition in coastal systems: Forcing of spatio-temporal variability at multi-systems scale
C Liénart, N Savoye, V David, P Ramond, PR Tress, V Hanquiez, ...
Progress in Oceanography 162, 271-289, 2018
352018
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