Ina Severin

Science Officer
+49 (0)30 64181 648

Müggelseedamm 310, 12587 Berlin


As the science officer I assist the institute’s management in the strategic development of IGB.

My tasks include

  • support of internal communication and networking within IGB through events and internal funding schemes
  • representation of IGB in various working groups and committees
  • matters concerning the Leibniz Association, the  Forschungsverbundes Berlin e.V. and the Scientific Advisory Board.

since 2014  Science Officer at the Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany

  • 2019/2020: Diploma of Advanced Studies (30 ECTS) 'Higher Education and Research Management', University of Applied Sciences Osnabrück, Germany
  • 2016: three months guest science expert at the Permanent Representation of the Federal Republic of Germany to UNESCO, Paris, France

2012 - 2014  PostDoc at the Marine Biological Laboratory, Department of Biology, University of Copenhagen, Denmark

2010 - 2012  PostDoc at the Department of Ecology and Evolution/Limnology, Evolutionary Biology Centre, Uppsala University, Sweden

2006 - 2010  Ph.D student at the Department of Marine Microbiology, Centre for Estuarine and Marine Ecology, Netherlands Institute of Ecology, the Netherlands

  • 2008: two months research stay at the 'Institut de Ciènces del Mar' (ICM-CSIC), Barcelona, Spain

2000 - 2005  Studies of Biology (marine biology, microbiology, ecology) at the University of Rostock, Germany

  • 2004: two months internship at Deakin University, Warrnambool, Australia
  • 2003: three months internship at the Institute of Marine Sciences, University of Dar es Salaam, Zanzibar, Tanzania


Comte J, Berga M, Severin I, Logue JB, Lindström E (2017) Contribution of different bacterial dispersal sources to lakes: Population and community effects in different seasons. Environmental Microbiology 19: 2391-2404



Severin I, Bentzon-Tilia M, Moisander PH, Riemann L (2015) Nitrogenase expression in estuarine bacterioplankton influenced by organic carbon and availability of oxygen.  FEMS Microbiology Letters 362: doi: 10.1093/femsle/fnv105

Bentzon-Tilia M, Severin I, Hansen LH, Riemann L (2015)  Genomics and ecophysiology of heterotrophic nitrogen-fixing bacteria isolated from estuarine surface water.  mBio 6:e00929-15. doi:10.1128/mBio.00929-15



Severin I, Lindström ES, Östmann Ö (2014) Relationships between bacterial community composition, functional trait composition and functioning are context dependent - but what is the context?  PLoS ONE 9: doi:10.1371/journal.pone.0112409



Severin I, Östman Ö, Lindström ES (2013) Variable effects of dispersal on productivity of bacterial communities due to changes in functional trait composition.  PLoS ONE 8: doi:10.1371/journal.pone.0080825



Lundin D, Severin I, Logue JB, Östman Ö, Andersson AF, Lindström ES (2012) Which sequencing depth is sufficient to describe patterns in bacterial α- and β-diversity?  Environmental Microbiology Reports 4: 367-372

Severin I, Confurius-Guns V, Stal LJ (2012) Effect of salinity on nitrogenase activity and composition of the active diazotrophic community in intertidal microbial mats.  Archives of Microbiology: 194: 483-491



Bauersachs T, Compaoré J, Severin I, Hopmans EC, Schouten S, Stal LJ, Sinninghe Damsté JS (2011) Diazotrophic microbial community of coastal microbial mats of the southern North Sea.  Geobiology 9: 349-359



Severin I, Stal LJ (2010) Spatial and temporal variability in nitrogenase activity and diazotrophic community composition in coastal microbial mats.  Marine Ecology Progress Series 417: 13-25

Severin I, Acinas SG, Stal LJ (2010) Diversity of nitrogen-fixing bacteria in cyanobacterial mats.  FEMS Microbiology Ecology 73: 514-525

Severin I, Stal LJ (2010)  Diazotrophic Microbial Mats. In: Seckbach J, Oren A (eds) Microbial Mats. Springer, Berlin/Heidelberg: 323-339

Stal LJ, Bolhuis H, Severin I (2010) The Ecology of Nitrogen Fixation in Cyanobacterial Mats. In: Hallenbeck PC (ed) Recent Advantages in Phototropic Prokaryotes. Springer, New York: 31-45

Severin I, Stal LJ (2010)  NifH expression by five groups of phototrophs compared to nitrogenase activity in coastal microbial mats.  FEMS Microbiology Ecology 73: 55-67

Severin I, Stal LJ (2010) Temporal and spatial variability of nifH expression in three filamentous Cyanobacteria in coastal microbial mats.  Aquatic Microbial Ecology 60: 59-70

Bolhuis H, Severin I, Confurius-Guns V, Wollenzien UIA, Stal LJ (2010) Horizontal transfer of the nitrogen fixation gene cluster in the cyanobacterium Microcoleus chthonoplastes.  ISME Journal 4: 121-130



Severin I, Stal LJ (2008) Light dependency of nitrogen fixation in a coastal cyanobacterial mat.  ISME Journal 2:1077-1088

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