Emilio Marañón

My research deals with the ecology and biogeochemical role of marine microbial plankton. I focus on phytoplankton diversity, size structure and productivity but am also interested in other processes such as N₂ fixation, calcification and the metabolic balance of the planktonic microbial community. The ultimate aim of this research is to understand the relationship between environmental forcing, the composition and structure of the planktonic communities, and the biogeochemical cycling of elements in the upper ocean. Topics currently under investigation include:

· Size-scaling of phytoplankton abundance and metabolism

· Distribution, abundance and activity of planktonic N₂ fixers

· Biogeochemical variability in the subtropical gyres

· Photosynthetic production of dissolved organic carbon

Recent and on-going projects

· Dispersal, neutral models and community assembly in marine microbial plankton (DISTRAL). P. I.: P. Cermeño

· Macroecological patterns in marine phytoplankton (PERSEO). P. I.: E. Marañón

· Response of phytoplankton communities to historical climate change: effects on diversity and atmospheric CO₂ levels. P. I.: P. Cermeño (U. Vigo)

· Circunnavigation Expedition Malaspina 2010: Global Change and Biodiversity Exploration of the Global Ocean. Coordinator: C. M. Duarte (CSIC). P. I. at U. Vigo.: E. Marañón

· Spatio-temporal variability in the synthesis, remineralization and export of organic carbon in the North Atlantic subtropical gyre. P. I.: B. Mouriño (U. Vigo)

· Production of dissolved organic carbon in the Mediterranean Sea (collaboration with BOUM project, coordinated by T. Moutin, CNRS). P. I.: E. Marañón

· Turbulence measurements along a latitudinal gradient in the Atlantic Ocean. P. I.: B. Mouriño

· Trichodesmium spp. and N₂ fixation in the tropical Atlantic (TRYNITROP). P. I.: E. Marañón

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Publications

51. Huete-Ortega, M., Cermeño, P., Calvo-Díaz, A., Marañón, E. (2011) Isometric size-scaling of metabolic rate and the size abundance distribution of phytoplankton. Proceedings of the Royal Society B, doi:10.1098/rspb.2011.2257.

50. Calvo-Díaz, A., Díaz-Pérez, L., Suárez, L. A., Morán, X. A. G., Teira, E., Marañón, E. (2011) Decrease in the autotrophic-to-heterotrophic biomass ratio of picoplankton in oligotrophic marine waters due to bottle enclosure. Applied and Environmental Microbiology, 77, 5739–5746.

49. Huete-Ortega, M., Calvo-Díaz, A., Mouriño-Carballido, B., Graña, R., Marañón, E. (2011) Effect of environmental forcing on the biomass, production and growth rate of size-fractionated phytoplankton in the central Atlantic Ocean. Journal of Marine Systems, 88, 203-130.

48. Mouriño-Carballido, B., Graña, R., Fernández, A., Bode, A., Varela, M., Domínguez, J. F., Escánez, J., de Armas, D., Marañón, E. (2011) Importance of N₂ fixation versus nitrate eddy diffusion along a latitudinal transect in the Atlantic Ocean. Limnology and Oceanography, 56, 999-1007.

47. Moreno-Ostos, E., Fernández, A., Huete-Ortega, M., Mouriño-Carballido, M., Calvo-Díaz, A., Morán, X. A. G., Marañón, E. (2011) Size-fractionated phytoplankton biomass and production in the tropical Atlantic. Scientia Marina, 75, 379-389.

46. López-Sandoval, D. C., Fernández, A., Marañón, E. (2011) Dissolved and particulate primary production along a longitudinal gradient in the Mediterranean Sea. Biogeosciences, 8, 815-825.

45. Marañón, E., Fernández, A., Mouriño-Carballido, B., Martínez-García, S., Teira, E., Cermeño, P., Chouciño, P., Huete-Ortega, M., Fernández, E., Calvo-Díaz, A., Morán, X. A. G., Bode, A., Moreno-Ostos, E., Varela, M. M., Patey, M. D., Achterberg, E. P. (2010). Degree of oligotrophy controls the response of microbial plankton to Saharan dust. Limnology and Oceanography, 55, 2339-2352. Highlighted by

44. Martínez-García, S., Fernández, E., Álvarez-Salgado, X. A., González, J., Lønborg, C., Marañón, E., Morán, X. A. G., Teira, E. (2010) Differential responses of phytoplankton and heterotrophic bacteria to organic and inorganic nutrient additions in coastal waters off the NW Iberian Peninsula. Marine Ecology Progress Series, 416, 17-33.

43. Fernández, A., Mouriño-Carballido, B., Bode, A., Varela, M., Marañón, E. (2010) Latitudinal distribution of Trichodesmium spp. and N₂ fixation in the Atlantic Ocean. Biogeosciences, 7, 3167–3176.

42. López-Sandoval, D. C., Marañón, E., Fernández, A., González, J., Gasol, J. M., Lekunberri, I., Varela, M., Calvo-Díaz, A., Morán, X. A. G., Álvarez-Salgado, X. A., Figueiras, F. G. (2010) Particulate and dissolved primary production by contrasting phytoplankton assemblages during mesocosm experiments in the Ría de Vigo (NW Spain). Journal of Plankton Research, 32, 1231-1240.

41. Martínez-García, S., Fernández, E., Calvo-Díaz, A., Marañón, E., Morán, X. A. G., Teira, E. (2010) Response of heterotrophic and autotrophic microbial plankton to inorganic and organic inputs along a latitudinal transect in the Atlantic Ocean. Biogeosciences, 7, 1701-1713.

40. Huete-Ortega, M., Marañón, E., Varela, M., Bode, A. (2010) General patterns in the size scaling of phytoplankton abundance in coastal waters during a 10-year time series. Journal of Plankton Research, 32, 1-14.

39. Marañón, E. (2009) Phytoplankton size structure. In: Encyclopedia of Ocean Sciences, 2nd Edition (J.H. Steele, K.K. Turekian and S. A. Thorpe, Editors). Oxford, Academic Press.

38. Marañón, E. (2008) Inter-specific scaling of phytoplankton production and cell size in the field. Journal of Plankton Research, 30, 157-163. Highlighted by

37. Cermeño, P., Marañón, E., Harbour, D., Figueiras, F. G., Crespo, B. G., Huete, M., Varela, M., Harris, R. P. (2008) Resource levels, allometric scaling of population abundance, and marine phytoplankton diversity. Limnology and Oceanography, 53, 312-318.

36. Marañón, E., Cermeño, P., Rodríguez, J., Zubkov, M. V., Harris, R. P. (2007) Scaling of phytoplankton photosynthesis and cell size in the ocean. Limnology and Oceanography, 52, 2190-2198.

35. Marañón, E., Pérez, V., Fernández, E., Anadón, R., Bode, A., González, N., Huskin, I., Isla, A., Morán, X. A. G., Mouriño, B., Quevedo, M., Robinson, C., Serret, P., Teira, E., Varela, M. M., Woodward, E. M. S., Zubkov, M. V. (2007) Planktonic carbon budget in the Eastern Subtropical North Atlantic. Aquatic Microbial Ecology, 48, 261-275.

34. Pérez, V., Fernández, E., Marañón, E., Morán, X. A. G., Zubkov, M. V. (2006) Vertical variability of phytoplankton biomass, production and growth in the Atlantic subtropical gyres. Deep-Sea Research I, 53, 1616–1634.

33. Cermeño, P., Marañón, E., Harris, R., Harbour D. (2006) Invariant scaling of phytoplankton abundance and cell size in contrasting marine environments. Ecology Letters, 9, 1210-1215.

32. Suggett, D. C. Moore M., Marañón, E., Omachi, C., Varela, R. A., Aiken, J., Holligan, P. M. (2006) Photosynthetic electron turnover in the tropical and subtropical Atlantic Ocean Deep-Sea Research II, 53, 1573-1593.

31. Cermeño, P., Marañón, E., Pérez, V., Serret, P., Fernández, E., Castro, C. G. (2006) Phytoplankton size structure and primary production in a highly dynamic coastal ecosystem (Ría de Vigo, NW-Spain): seasonal and short-time scale variability. Estuarine, Coastal and Shelf Science, 67, 251-266.

30. Cermeño, P., Estévez-Blanco, P., Marañón, E., Fernández, E. (2005) Maximum photosynthetic efficiency of size-fractionated phytoplankton assessed by ¹⁴C-uptake and fast repetition rate fluorometry. Limnology and Oceanography, 50, 1438-1446.

29. Marañón, E., Cermeño, P., Pérez, V. (2005) Continuity in the photosynthetic production of dissolved organic carbon from eutrophic to oligotrophic waters. Marine Ecology Progress Series, 299, 7-17.

28. Cermeño, P., Marañón, E., Rodríguez, J., Fernández, E. (2005) Large-sized phytoplankton sustain higher carbon-specific photosynthesis than smaller cells in a coastal eutrophic ecosystem. Marine Ecology Progress Series, 297, 51-60. Highlighted by

27. Cermeño, P., Marañón, E., Rodríguez, J., Fernández, E. (2005) Size dependence of coastal phytoplankton photosynthesis under vertical mixing conditions. Journal of Plankton Research, 27, 473-483.

26. Pérez, V., Fernández, E., Marañón, E., Serret, P., Varela, R., Bode, A., Varela, M. M., Morán, X. A. G., Woodward, E. M. S., Kitidis, V., García-Soto, C. (2005) Latitudinal distribution of microbial plankton abundance, production and respiration in the Equatorial Atlantic in autumn 2000. Deep Sea Research I, 52, 861-880.

25. Marañón, E. (2005) Phytoplankton growth rates in the Atlantic subtropical gyres. Limnology and Oceanography, 50, 299-310.

24. Teira, E., Mouriño, B., Marañón, E., Pérez, V., Pazó, M. J., Serret, P., Fernández, E. (2005) Variability of chlorophyll and primary production in the Eastern North Atlantic subtropical gyre: potential factors affecting phytoplankton activity. Deep-Sea Research I, 52, 569-588.

23. Pérez, V., Fernández, E., Marañón, E., Serret, P, and García-Soto, C. (2005) Seasonal and interannual variability of chlorophyll a and primary production in the Equatorial Atlantic: 'in situ' and remote sensing observations. Journal of Plankton Research, 27, 189-197.

22. Marañón, E., Cermeño, P., Fernández, E., Rodríguez, J., Zabala, L. (2004) Significance and mechanisms of photosynthetic production of dissolved organic carbon in a coastal eutrophic ecosystem. Limnology and Oceanography, 49, 1652-1666.

21. Tyrrell, T., Marañón, E., Poulton, A., Bowie, A. R., Harbour, D. S., Woodward, M. (2003) Large-scale latitudinal distribution of Trichodesmium spp. in the Atlantic Ocean. Journal of Plankton Research, 25, 405-416.

20. Suárez, I., Marañón, E. (2003) Photosynthate allocation in a temperate sea over an annual cycle: the relationship between protein synthesis and phytoplankton physiological state. Journal of Sea Research, 50, 285-299.

19. Marañón, E., Behrenfeld, M. J., González, N., Mouriño, B., Zubkov, M. V. (2003) High variability of primary production in oligotrophic waters of the Atlantic Ocean: uncoupling from phytoplankton biomass and size structure. Marine Ecology Progress Series, 257, 1-11.

18. Fernández, E., Marañón, E., Serret, P, Morán, X. A. G. (2003) Potential causes for the unequal contribution of picophytoplankton to total biomass and productivity in oligotrophic waters. Marine Ecology Progress Series, 254, 101-109.

17. González, N., Anadón, R., Marañón, E. (2002) Large-scale latitudinal distribution of planktonic net community metabolism in the Atlantic Ocean: the importance of temporal variability in oligotrophic subtropical waters. Marine Ecology Progress Series, 233, 21-30.

16. Mino, Y., Saino, T., Suzuki, K., Marañón, E. (2002) Isotopic composition of suspended particulate nitrogen (d¹⁵N_sus) in surface waters of the Atlantic Ocean from 50°N to 50°S. Global Biogeochemical Cycles, 16(4), Article No. 1059.

15. Marañón, E., Holligan, P. M., Barciela, R., González, N., Mouriño, B., Pazó, M. J., Varela, M. (2001) Patterns of phytoplankton size–structure and productivity in contrasting open ocean environments. Marine Ecology Progress Series, 216, 43-56.

14. Behrenfeld, M. J., Marañón, E., Siegel, D. A. and Hooker, S. B. (2001) A photoacclimation and nutrient based model of light-saturated photosynthesis for quantifying oceanic primary production. Marine Ecology Progress Series, 228, 103-117.

13. Marañón, E., Holligan, P. M., Varela, M., Mouriño, B. and Bale, A. J. (2000) Basin-scale variability of phytoplankton biomass, production and growth in the Atlantic Ocean. Deep-Sea Research I, 47, 825-857.

12. Marañón, E. and Holligan, P. M. (1999) Photosynthetic parameters of phytoplankton from 50°N to 50°S in the Atlantic Ocean. Marine Ecology Progress Series, 176, 191-203.

11. Head, R., Crawford, D., Egge, J., Lesley, D., Kristiansen, S., Marañón, E., Pond, D., Purdie, D. y Harris, R. (1998) The hydrography and biology of a bloom of the coccolithophorid Emiliania huxleyi in the Northern North Sea. Journal of Sea Research, 39, 255-266.

10. Marañón, E. and González, N. (1997) Primary production, calcification and macromolecular synthesis in a bloom of the coccolithophorid Emiliania huxleyi in the North Sea. Marine Ecology Progress Series, 157, 61-77.

9. Marañón, E., Fernández, E., Harris, R. P. and Harbour, D. S. (1996) Effects of the diatom-Emiliania huxleyi succession on photosynthesis, calcification and carbon metabolism by size-fractionated phytoplankton. Hydrobiologia, 317, 189-199.

8. Fernández, E., Marañón, E., Harbour, D. S., Kristiansen, S. and Heimdal, B. R. (1996) Patterns of carbon and nitrogen uptake during blooms of Emiliania huxleyi in two norwegian fjords. Journal of Plankton Research, 18, 2349-2366.

7. Bode, A., Casas, B., Fernández, E., Marañón, E., Serret, P. and Varela, M. (1996) Phytoplankton biomass and production in shelf waters off NW Spain: spatial and seasonal variability in relation to upwelling. Hydrobiologia, 341, 225-234.

6. Fernández, E., Marañón, E. and Balch, W. M. (1996) Intracellular carbon partitioning in Emiliania huxleyi. Journal of Marine Systems, 9, 57-66.

5. Fernández, E., Marañón, E., Álvarez, F. and Anadón, R. (1995) Vertical particle flux in outer shelf waters of the Cantabrian Coast in summer 1993. Oceanologica Acta, 18, 379-384.

4. Marañón, E. and Fernández, E. (1995) Changes in phytoplankton ecophysiology across a coastal upwelling front. Journal of Plankton Research, 17, 1999-2008.

3. Marañón, E., Fernández, E. and Anadón, R. (1995) Patterns of macromolecular synthesis by natural phytoplankton assemblages under changing upwelling regimes: in situ observations and microcosm experiments. Journal of Experimental Marine Biology and Ecology, 188, 1-28.

2. Fernández, E., Marañón, E., Harbour, D. S. and Pingree, R. D. (1994) Phytoplankton carbon incorporation patterns and biochemical composition of particulate matter in the eastern North Atlantic subtropical region. Journal of Plankton Research, 16, 1627-1644.

1. Fernández, E., Balch, W. M., Marañón, E. and Holligan, P. M. (1994) High rates of lipid biosynthesis in cultured, mesocosm and coastal populations of the coccolithophore Emiliania huxleyi. Marine Ecology Progress Series, 114, 13-22.

Recent oral presentations

· Marañón, E. (2011) Searching for general patterns in the response of microbial plankton to atmospheric deposition. ASLO Aquatic Sciences Meeting, San Juan, Puerto Rico (USA).

· Marañón, E., Fernández, A., Huete-Ortega, M., Mouriño B., Cermeño, P., Chouciño, P., Martínez, S., Teira, E., Calvo, A., Morán, X. A. G., Bode A., Moreno-Ostos, E., Patey, M., Achterberg, E. P. (2009) Effects of experimental dust addition on the biomass and metabolism of microbial plankton in the oligotrophic Atlantic Ocean. ASLO Aquatic Sciences Meeting, Nice (France).

· Marañón, E., Cermeño P, Rodríguez J (2007) Phytoplankton metabolism and the ¾-power rule. IV Conference of the European Phycological Society, Oviedo (Spain).

· Marañón, E. (2006) Structure and functioning of the planktonic community in the Atlantic subtropical gyres. Biodiversity and Biogeochemistry of the Atlantic Ocean, The Royal Society, London (UK)

· Marañón, E. (2005) How fast do phytoplankton grow in the subtropical gyres? ASLO Summer Meeting, Santiago de Compostela (Spain).

· Marañón, E., Cermeño, P., Pérez, V. (2005) Continuity in the importance and mechanisms of photosynthetic production of dissolved organic carbon from eutrophic to oligotrophic waters. General Assembly of the European Geophysical Union (EGS), Vienna (Austria).

Last updated December 2011