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62 results on '"Stéphane L'Helguen"'

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1. Free-living and particle-attached bacterial community composition, assembly processes and determinants across spatiotemporal scales in a macrotidal temperate estuary

2. Data quality control considerations in multivariate environmental monitoring: experience of the French coastal network SOMLIT

3. Quorum Sensing Regulates Bacterial Processes That Play a Major Role in Marine Biogeochemical Cycles

4. Quorum Sensing Regulates the Hydrolytic Enzyme Production and Community Composition of Heterotrophic Bacteria in Coastal Waters

5. Response of the unicellular diazotrophic cyanobacterium Crocosphaera watsonii to iron limitation.

7. Inorganic and organic carbon and nitrogen uptake strategies of picoplankton groups in the northwestern Atlantic Ocean

8. Role of small Rhizaria and diatoms in the pelagic silica production of the Sourther Ocean

9. Quorum sensing disruption regulates hydrolytic enzyme and biofilm production in estuarine bacteria

10. Microbial enzymatic assays in environmental water samples: Impact of inner filter effect and substrate concentrations

11. Small phytoplankton contribute greatly to CO

12. Temperature and Salinity Changes in Coastal Waters of Western Europe: Variability, Trends and Extreme Events

13. Dynamics of N2 fixation and fate of diazotroph-derived nitrogen in a low-nutrient, low-chlorophyll ecosystem: results from the VAHINE mesocosm experiment (New Caledonia)

14. Correction: NanoSIMS single cell analyses reveal the contrasting nitrogen sources for small phytoplankton

15. Potential effects of deep seawater discharge by an Ocean Thermal Energy Conversion plant on the marine microorganisms in oligotrophic waters

16. Dynamics of particulate organic matter composition in coastal systems: Forcing of spatio-temporal variability at multi-systems scale

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

18. Dynamics of particulate organic matter composition in coastal systems: a spatio-temporal study at multi-systems scale

19. The biogeochemistry of cobalt in the Mediterranean Sea

20. The annual and seasonal variability of the carbonate system in the Bay of Brest (Northwest Atlantic Shelf, 2008–2014)

21. Strong stimulation of N2 fixation in oligotrophic Mediterranean Sea: results from dust addition in large in situ mesocosms

22. MAREL-Iroise/SOMLIT-Brest : Un outil à 'fonctions-multiples', pour l’observation des eaux côtières

23. Size-dependent uptake of nitrate and ammonium as a function of light in well-mixed temperate coastal waters

24. Nutrient control of N2 fixation in the oligotrophic Mediterranean Sea and the impact of Saharan dust events

25. Barium and molybdenum records in bivalve shells: Geochemical proxies for phytoplankton dynamics in coastal environments?

26. Size-fractionated phytoplankton biomass and nitrogen uptake in response to high nutrient load in the North Biscay Bay in spring

27. Net and gross incorporation of nitrogen by marine copepods fed on 15N-labelled diatoms: Methodology and trophic studies

28. Response of a phytoplankton community to increased nutrient inputs: A mesocosm experiment in the Bay of Brest (France)

29. NITROGEN UPTAKE AND ASSIMILATION KINETICS INALEXANDRIUM MINUTUM(DYNOPHYCEAE): EFFECT OF N-LIMITED GROWTH RATE ON NITRATE AND AMMONIUM INTERACTIONS

30. Dinitrogen fixation and dissolved organic nitrogen fueled primary production and particulate export during the VAHINE mesocosm experiment (New Caledonia lagoon)

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

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

33. Contrasted Saharan dust events in LNLC environments: impact on nutrient dynamics and primary production

34. Impact of iron limitation on primary production (dissolved and particulate) and secondary production in cultured Trichodesmium sp

35. Saharan dust: a source of bioavailable iron for the marine unicellular diazotrophic cyanobacterium C. watsonii

36. A novel approach using the 15N tracer technique and benthic chambers to determine ammonium fluxes at the sediment-water interface and its application in a back-reef zone on Reunion Island (Indian Ocean)

37. Phytoplanktonic response to contrasted Saharan dust deposition events during mesocosm experiments in LNLC environment

38. Absorption et régénération de l'azote dans le système brassé de la Manche: productions nouvelle et régénérée

39. Comparative dynamics of pelagic and benthic micro-algae in a coastal ecosystem

40. ƒ-Ratios calculated with and without urea uptake in nitrogen uptake by phytoplankton

41. Longitudinal variability of the biogeochemical role of Mediterranean aerosols in the Mediterranean Sea

42. Conditions de formation d'eaux colorées toxiques sur le plateau continental Manche - Atlantique; Cas de Gyrodinium cf. aureolum

43. Speciation of dissolved copper and cadmium in the Loire estuary and over the North Biscay continental shelf in spring

44. Recovery of urea nitrogen from seawater for measurement of 15N abundance in urea regeneration studies using the isotope-dilution approach

45. Net and gross incorporation of nitrogen by marine copepods fed on 15N labelled diatoms: methodology and trophic studies

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

47. 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

49. Response of the Unicellular Diazotrophic Cyanobacterium Crocosphaera watsonii to Iron Limitation

50. Nitrogen uptake by phytoplankton in a shallow water tidal front

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