Contact

Dr. Ferdinand Esser

Institute for Chemistry and Biology of the Sea (ICBM)

Room: W15 0-031

Phone: +49 (0)441-798-3171

E-mail:

Graduate

Completed doctoral theses at the ICBM

Here you will find an overview of graduates who have completed a doctoral thesis at the ICBM, arranged by year.

In addition to the title of the thesis, the supervisor and the working group in which the thesis was written are also listed.

2021

Dr. Nora-Charlotte Pauli

Nora-Charlotte Pauli

“The role of Antarctic krill and salps in the carbon cycle at the Antarctic Peninsula”
Supervisor: Prof. Dr. Bettina Meyer

Working group: Biodiversity and Biological Processes in Polar Oceans Prof. Dr. Bettina Meyer

Dr. Pim Sprong

Pim Sprong

"Seasonal dynamics of the eukaryotic microbial community in the
northern seas: biodiversity from mesoscale to sub-mesoscale"
Supervisior: Prof. Dr. Oliver Zielinski

Working group:
Marine Sensor Systems Prof. Dr. Oliver Zielinski

Dr. Elham Kamyab

Dr. Elham Kamyab

"From Chemical Ecology towards Biotechnological Applications: A Study on Sea Cucumbers Derived Secondary Metabolites "
Supervisor: Prof. Dr. Peter Schupp

Working group:
Environmental Biochemistry Prof. Dr. Peter Schupp

Dr. Silke Eilers

Dr. Silke Eilers

"Analysis and assessment of cumulative effects of anthropogenic pressures on ecosystem components "
Supervisor: Prof. Dr. Helmut Hillebrand

Working group:
Planktology Prof. Dr. Helmut Hillebrand

Dr Janis Ahrens

Dr Janis Ahrens

"Nutrient and trace metal cycling in beach sediments and its constituent fluxes across the sediment-water interface "
Supervisor: Prof. Dr. Hans-Jürgen Brumsack

Workgroup: Microbiogeochemistry Prof. Dr. Hans-Jürgen Brumsack

Supervisor: Prof. DrKatharina Pahnke-May

Workgroup: Marine Isotope Geochemistry Prof. Dr. Katharina Pahnke-May

2020

Dr. Marcel Ricker
"On the Dynamics of Floating Marine Litter in the North Sea "
Supervisor: Prof. Dr. Emil V. Stanev
Workgroup: Coastal Research Prof. Dr. Emil Stanev

Dr. Simone Heyen
"Development and Application of a Method for the Identification and Quantification of Organic Acids in Microbial Exometabolomes "
Supervisor: Prof. Dr. Heinz Wilkes
Working group: Organic Geochemistry Prof. Dr. Heinz Wilkes

Dr. Ronja Paffrath
"Terrestrial Input of Rare Earth Elements and Neodymium Isotopes to the Ocean and their Transport and Cycling - Case Studies from the Arctic Ocean and the Southern North Sea "
Supervisor: Prof. Dr. Katharina Pahnke-May
Workgroup: Marine Isotope Geochemistry Prof. Dr. Katharina Pahnke-May

Dr. Leon Dlugosch
"Functional biogeography of pelagic and sediment-associated marine microbial communities "
Supervisor: Prof. Dr. Meinhard Simon
Working group: Biology of Geological Processes Prof. Dr. Meinhard Simon

Dr. Daniel Thewes
"Numerical Simulations of Coastal Ocean Darkening "
Supervisor: Prof. Dr. Emil V. Stanev
Workgroup: Coastal Research Prof. Dr. Emil Stanev

Dr Miriam Gerhard
"Phytoplankton community responses to nutrient availability: interactions with temperature and diversity "
Supervisor: Prof. Dr Helmut Hillebrand
Working group: Planktology Prof. Dr Helmut Hillebrand

Dr. Corinna Elena Mori
"The fate of selected trace metals (Mn, Fe, Mo, TI) in coastal ocean compartments "
Supervisor: Prof. Dr. Hans-Jürgen Brumsack
Workgroup: Microbiogeochemistry Prof. Dr. Hans-Jürgen Brumsack
Supervisor: Prof. Dr. Katharina Pahnke-May
Workgroup: Marine Isotope Geochemistry Prof. Dr. Katharina Pahnke-May

Dr. Lars-Erik Petersen
"The role of bacterial signalling molecules in coral settlement "
Supervisor: Prof. Dr. Peter Schupp
Workgroup: Environmental Biochemistry Prof. Dr. Peter Schupp

Dr. Rosanna Schöneich-Argent
"Anthropogenic Macrolitter Pollution in the Southern North Sea - Sources, Dispersal, and Deposition along Riverine Pathways and Coastal Shorelines "
Supervisor: PD Dr Holger Freund
Working group: Geoecology PD Dr Holger Freund

Dr. Marten Fischer
"Microplastics Analysis with Pyrolysis-Gas Chromatography-Mass Spectrometry in Environmental Samples "
Supervisor: Prof. Dr. Heinz Wilkes
Working group: Organic Geochemistry Prof. Dr. Heinz Wilkes

Dr. Anja Juliane Grohmann
"Characterisation of microbial metagenome and metatranscriptome repertoires in anaerobic biogas production systems "
Supervisor: Prof. Dr. Ralf Rabus
Working group: General & Molecular Microbiology Prof. Dr. Ralf Rabus

Dr. René Neuholz
"Radium isotopes as oceanographic tracers: from remote deep-sea hydrothermal systems to coastal oceans "
Supervisor: Prof. Dr. Hans-Jürgen Brumsack
Working group: Microbiogeochemistry Prof. Dr. Hans-Jürgen Brumsack

Dr Julian Merder
"Marine dissolved organic matter and its interaction with biotic and abiotic factors: novel insights from advanced statistical analysis and data processing "
Supervisor: Prof. Dr Ulrike Feudel
Working group: Theoretical Physics / Complex Systems Prof. Dr Ulrike Feudel

Dr. Jannes Vagts
"Regulation and responsiveness of anaerobic aromatic compound degradation in Aromatoleum aromaticum EbN1 "
Supervisor: Prof. Dr. Ralf Rabus
Working group: General & Molecular Microbiology Prof. Dr. Ralf Rabus

Dr Julia Kirchner
"Reducing CO2 emissions via accelerated weathering of limestone: Suitable locations, process optimisation and environmental safety "
Supervisor: Prof. Dr Hans-Jürgen Brumsack
Working group: Microbiogeochemistry Prof. Dr Hans-Jürgen Brumsack

Dr. Kai Uwe von Prillwitz
"Spatial Patterns in Meta-Food-Webs: A Colonisation-Extinction Model Approach "
Supervisor: Prof. Dr. Bernd Blasius
Working Group: Mathematical Modelling Prof. Dr. BerndBlasius

2019

Dr. Lena Spruch
Thesis: "Biogeography, community assembly and biodiversity in dynamic landscapes "
Supervisor: Prof. Dr. Bernd Blasius
Working group: Mathematical modelling Prof. Dr. Bernd Blasius

Dr. Bianca Torres Liguori Pires
Thesis: "The Biogeochemical Silicon Cycle in the Arctic Ocean: Insights from Stable Silicon Isotopes "
Supervisor: Prof. Dr. Katharina Pahnke-May
Working Group: Marine Isotope Geochemistry Dr. Katharina Pahnke MPI Research Group

Dr. Mario Luis Miranda MontenegroThesis
Thesis: "Fluorescent Dissolved Organic Matter (FDOM) from land to the sea: A spectrofluormetric approach to investigate sources, sinks and is role as universal pollutant carrier "
Supervisor: Prof. Dr Oliver Zielinski
Workgroup: Marine Sensor Systems Prof. Dr Oliver Zielinski

Dr. Tiera-Brandy Robinson
Thesis: "Effects of rising temperatures on the dinoflagellate symbioses of juvenile brooding corals and corallimorpharians "
Supervisor: Prof. Dr. Oliver Wurl
Working group: Processes and Sensors of Marine Interfaces Prof. Dr. Oliver Wurl

Dr Samuel Nietzer
Thesis: "Effects of rising temperatures on the dinoflagellate symbioses of juvenile brooding corals and corallimorpharians "
Supervisor: Prof. Dr Peter Schupp
Working group: Environmental biochemistry Prof. Dr Peter Schupp

Dr. Ioannis Tsakalakis
Thesis: "Importance of spatial and temporal variations of resources for modelling phytoplankton diversity "
Supervisor: Prof. Dr. Bernd Blasius
Working group: Mathematical Modelling

Dr. Fatehi Dubaish
Thesis: "Microplastics in the Wadden Sea of Lower Saxony and in the Lower Weser Sources, Sinks and the Impact on Benthic Organisms "
Supervisor: Prof. Dr. Peter Schupp
Working Group: Environmental Biochemistry Prof. Dr. Peter Schupp

Dr Anneke Purz
Thesis: "Propagation of extreme events:The effect of nutrients on the bloom dynamics and spatial propagation of harmful dinoflagellates "
Supervisor: Prof. Dr Helmut Hillebrand
Working group: Planktology

Dr. Flavia Höring
Thesis: "Seasonal, Physiological and Genetic Functions in Antarctic Krill, Euphausia superba, at Different Latitudes in the Southern Ocean".
Supervisor: Prof. Dr. Bettina Meyer
Working group: Biodiversity & Biological Processes of the Polar Oceans

Dr. Laura WolterThesis
Thesis: "Adaptations, chemical communication and chemotaxis in Rhodobacteracea associated with surface in coastal habitats "
Supervisor: Prof. Dr. Meinhard Simon
Working group: Biological geological processes

Dr. Veloisa J. Mascarenhas
Thesis: "Fjord Light Regime: bio-optical implications of physicals and biogeochemical forcings in fjordal ecosystems along coasts of Norway and Greenland "
Supervisor: Prof. Dr. Oliver Zielinski
Working group: Marine Sensor Systems Prof. Dr. Oliver Zielinski

Dr. Anja Reckhardt
Thesis: Biogeochemical dynamics and trace metal cycling in sandy beach sediments "
Supervisor: Prof. Dr. Hans-Jürgen Brumsack
Working group: Microbiogeochemistry Prof. Dr. Hans-Jürgen Brumsack

Dr. Maren Möller
Thesis: "Early life stages of corals and their relevance for the future of coral reefs "
Supervisor: Prof. Dr. Peter Schupp
Working group: Environmental biochemistry Prof. Dr. Peter Schupp

Dr. Marion Pohlner
Thesis: "Contribution of the Roseobacter group to the abundance, distribution and activity of microbial communities in marine sediments "
Supervisor: Dr. habil. Bert Engelen
Working group: Palaeomicrobiology Dr. habil. Bert Engelen

Dr. Maria del Carmen Igarza Tagle
Thesis: "Dissolved organic matter in the coastal upwelling system of central Peru "
Supervisor: Prof. Dr. Thorsten Dittmar
Working group: Research Group for Marine Geochemistry (ICBM-MPI Bridge Group) Prof. Dr. Thorsten Dittmar

2018

Dr. Daniel Wünsch
Thesis: Growth physiology of the marine bacterium Phaeobacter inhibens DSM 17396
Supervisor: Prof. Dr. Ralf Rabus
Working Group: General & Molecular Microbiology Prof. Dr. Ralf Rabus

Dr. Andrea Gall
Thesis: Interactive effects of biodiversity and dissolved organic matter on plankton communities
Supervisor: Prof. Dr Helmut Hillebrand
Working Group: Planktology Prof. Dr. Helmut Hillebrand

Dr. Nils Bergen
Thesis: Phylogenetic and functional bacterial diversity on the edible crab Cancer pagurus
Supervisor: Prof. Dr Meinhard Simon
Working Group: Biology of Geological Processes; Prof. Dr. Meinhard Simon

Dr. Arindam Saha
Thesis: Extreme events in delay-coupled relaxation oscillators
Supervisor: Prof. Dr. Ulrike Feudel
Working Group: Theoretical Physics / Complex Systems Prof. Dr. Ulrike Feudel

Dr. Andrea Mentges
Thesis: Predicting dissolved organic carbon concentrations and molecular diversity in the ocean using mathematical model simulations
Supervisor: Prof. Dr Thorsten Dittmar
Working group: Research Group for Marine Geochemistry (ICBM-MPI Bridge Group) Prof. Dr Thorsten Dittmar

Dr. Insa Bakenhus
Thesis: Single-cell and genome based analyses of pelagic bacterioplankton groups with a focus on the Roseobacter group
Supervisor: Prof. Dr Meinhard Simon
Working Group: Biology of Geological Processes; Prof. Dr. Meinhard Simon

Dr. Fabio Piccolin
Thesis: The role of photoperiod in the synchronisation of endogenous clocks and rhythms in Antarctic krill (Euphausia superba)
Supervisor: Prof. Dr Bettina Meyer
Working Group: Biodiversity and biological processes in polar oceans Prof. Dr. Bettina Meyer

Dr. Anne-Christin Schulz
Thesis: Characterization and qualification of hydrodynamic exchange processes in a tidal channel (East Frisian Wadden Sea)
Supervisor: Prof. Dr Oliver Zielinski
Working Group: Marine Sensor Systems Prof. Dr Oliver Zielinski

Dr. Beatriz Elizabeth Noriega Ortega
Thesis: Chemodiversity of marine dissolved organic matter and marine bacterial exometabolomes
Supervisor: Prof. Dr Thorsten Dittmar
Working group: Research Group for Marine Geochemistry (ICBM-MPI Bridge Group) Prof. Dr Thorsten Dittmar

Dr. Anna Friedrichs
Thesis: Investigation of coastal waters related substances by means of smartphones
Supervisor: Prof. Dr Oliver Zielinski
Working Group: Marine Sensor Systems Prof. Dr Oliver Zielinski

Dr. Rahel Vortmeyer-Kley
Thesis: The distribution and dynamics of eddies in the Baltic Sea and their impact on physical and biological processes
Supervisor: Prof. Dr. Ulrike Feudel
Working Group: Theoretical Physics / Complex Systems Prof. Dr. Ulrike Feudel

Dr. Nur Ili Hamizah Mustaffa
Thesis: Biogeochemical properties of the sea surface microlayer and its effect on the air-sea CO2 exchange
Supervisor: Dr Oliver Wurl
Working Group: Marine Surfaces Dr Oliver Wurl

Dr. Gerrit Wienhausen
Thesis: Linking the exometabolome of selected organisms of the Roseobacter group to marine dissolved organic matter - a microbiological perspective
Supervisor: Prof. Dr Meinhard Simon
Working Group: Biology of Geological Processes; Prof. Dr. Meinhard Simon

Dr. Christian Kirchhoff
Thesis: Physiological response to energy limitation in Dinoroseobacter shibae
Supervisor: Prof. Dr Heribert Cypionka
Working Group: Palaeomicrobiology Prof. Dr Heribert Cypionka

Dr. Lars Holinde
Thesis: Bio-optical investigation of Arctic coastal systems: From measurement to modelling
Supervisor: Prof. Dr Oliver Zielinski
Working Group: Marine Sensor Systems Prof. Dr Oliver Zielinski

Dr. Janina Rahlff
Thesis: The Role of Microbial Communities at the Sea Surface in Air-Sea Gas Exchange
Supervisor: Dr Oliver Wurl
Working Group: Marine Surfaces Dr Oliver Wurl

2017

Dr. Hanna Sibyll Ruppersberg
Thesis: Adaptation of Phaeobacter inhibens DSM 17396 to different N:P ratios
Supervisor: Prof. Dr. Ralf Rabus
Working Group: General & Molecular Microbiology Prof. Dr. Ralf Rabus

Dr. Maren Seibt
Thesis: The molecular geography of dissolved organic matter in the Atlantic and Southern Ocean
Supervisor: Prof. Dr Thorsten Dittmar
Working group: Research Group for Marine Geochemistry (ICBM-MPI Bridge Group) Prof. Dr Thorsten Dittmar

Dr. Benjamin Wahl
Thesis: Granger causality of diffusion processes - effects of non-linearity and non-trivial noise
Supervisor: Prof. Dr. Ulrike Feudel
Working Group: Theoretical Physics / Complex Systems Prof. Dr. Ulrike Feudel

Dr. Marvin Dörries
Thesis: Proteogenomics of environmentally relevant, marine, sulphate-reducing bacteria
Supervisor: Prof. Dr. Ralf Rabus
Working Group: General & Molecular Microbiology Prof. Dr. Ralf Rabus

Dr. Laura Verbeek
Thesis: Effects of Phytoplankton Diversity on the Stability of Freshwater Ecosystems
Supervisor: Prof. Dr Helmut Hillebrand
Working Group: Planktology Prof. Dr. Helmut Hillebrand

Dr. Benjamin Jacob
Thesis: On the Sensitivity of the Tidal Circulation in the North Seat to Morphodynamics and Atmospheric Forcing
Supervisor: Prof. Dr Bernd Blasius
Working Group: Mathematical Modelling Prof. Dr. Bernd Blasius

Dr. Nico Grüner
Thesis: Fitness-based classification of phytoplankton species from the southern North Sea
Supervisor: PD Dr Jan Freund
Working Group: Theoretical Physics / Complex Systems Prof. Dr. Ulrike Feudel

Dr. Sven Breider
Thesis: Genomic and taxonomic analyses of bacteria affiliated with the Leisingera - Phaeobacter cluster
Supervisor: Apl.-Prof. Dr. Thorsten Brinkhoff
Working Group: Biology of Geological Processes; Prof. Dr. Meinhard Simon

Dr. Melanie Behrens
Thesis: Controls on rare earth element and neodymium isotope distributions in the West Pacific: local imprint vs. lateral transport
Supervisor: Dr Katharina Pahnke
Working Group: Marine Isotope Geochemistry Dr Katharina Pahnke MPI Research Group

Dr. Anika Maria Pohlabeln
Thesis: Marine dissolved organic sulphur - Sources, fate, and structural characteristics
Supervisor: Prof. Dr Thorsten Dittmar
Working group: Research Group for Marine Geochemistry (ICBM-MPI Bridge Group) Prof. Dr Thorsten Dittmar

2016

Dr. Siri Rackebrandt
Thesis: Modelling the Population Dynamics of Antarctic krill: The Timing of Reproduction and the Impact of Climate Change
Supervisor: Prof. Dr Bernd Blasius
Working Group: Mathematical Modelling Prof. Dr. Bernd Blasius

Dr. Annemieke Strijkstra
Thesis: Anaerobic degradation of para-alkylated aromatic compounds - a proteogenomic perspective
Supervisor: Prof. Dr. Ralf Rabus
Working Group: General & Molecular Microbiology Prof. Dr. Ralf Rabus

Dr. Henning Fröllje
Thesis: Rare Earth Element and Neodymium Isotope Tracing of Element Input and Past Ocean Circulation: Study From North and South Pacific Seawater and Sediments
Supervisor: Dr Katharina Pahnke
Working Group: Marine Isotope Geochemistry Dr Katharina Pahnke MPI Research Group

Dr. Nicole Schwartz
Thesis: Why are aliens so successful? Why are aliens so successful? Explaining the invasion success of Sargassum muticum
Supervisor: Prof. Dr. Peter Schupp
Working Group: Environmental Biochemistry Prof. Dr. Peter Schupp

Dr. Michaela Busch
Thesis: Extreme events in the marine environment. The role of species-specific traits and adaptive strategies for harmful dinoflagellate bloom formation
Supervisor: Prof. Dr Helmut Hillebrand
Working Group: Planktology Prof. Dr. Helmut Hillebrand

Dr. Franziska Preuss
Thesis: The impact of viruses on the marine deep biosphere
Supervisor: Priv.-Doz. Dr. Bert Engelen
Working Group: Palaeomicrobiology Prof. Dr Heribert Cypionka

Dr. Mirjam Kant (Trinkler)
Thesis: Limiting the threshold concentration of 4-hydroxyacetophenone in "Aromatoleum aromaticum" strain EbN1
Supervisor: Prof. Dr. Ralf Rabus
Working Group: General & Molecular Microbiology Prof. Dr. Ralf Rabus

Dr. Sara Billerbeck
Thesis: The pelagic clusters of the Roseobacter group: Global distribution, genome analysis and physiological characterization
Supervisor: Prof. Dr Meinhard Simon
Working Group: Biology of Geological Processes Prof. Dr. Meinhard Simon

Dr. Saranya Kanukollu
Thesis: The metabolic potential and the distribution of the Roseobacter group in marine sediments
Supervisor: Priv.-Doz. Dr. Bert Engelen
Working Group: Palaeomicrobiology Prof. Dr Heribert Cypionka

Dr. Preeseela Satpathy
Thesis: Influence of lactate in anaerobic digestion and in the Anaerobic Digestion Model No. 1 (ADM1)
Supervisor: Prof. Dr Heribert Cypionka
Working Group: Palaeomicrobiology Prof. Dr Heribert Cypionka

Dr. Anton Daitche
Thesis: Memory Effects in the Motion of Inertial Particles
Supervisor: Prof. Dr. Ulrike Feudel
Working Group: Theoretical Physics / Complex Systems Prof. Dr. Ulrike Feudel

Dr. Johannes Pein
Thesis: The hydrodynamics of the Ems Estuary
Supervisor: Prof. Dr. Emil V. Stanev
Working Group: Coastal Research Prof. Dr. Emil Stanev

Dr. Sebastian Koßmehl
Thesis: Physiological and subcellular proteomics of Phaeobacter inhibens DSM 17395
Supervisor: Prof. Dr. Ralf Rabus
Working Group: General & Molecular Microbiology Prof. Dr. Ralf Rabus

Dr. Maren Zark (mute)     
Thesis: The impact of ocean acidification on marine dissolved organic matter
Supervisor: Prof. Dr Thorsten Dittmar
Working group: Research Group for Marine Geochemistry (ICBM-MPI Bridge Group) Prof. Dr Thorsten Dittmar

Dr. Marco Dogs
Thesis: Ecological relevance of secondary metabolite production by marine surface-associated Rhodobacteraceae
Supervisor: Apl.-Prof. Dr. Thorsten H. Brinkhoff
Working Group: Biology of Geological Processes Prof. Dr. Meinhard Simon

Dr. Paul Georg Beyersmann         
Thesis: Ecological Significance and Regulation of Secondary Metabolite Production in Phaeobacter Species
Supervisor: Apl.-Prof. Dr. Thorsten H. Brinkhoff
Working Group: Biology of Geological Processes Prof. Dr. Meinhard Simon

2015

Dr. Heidi Wischmann
Thesis: Effects of the marine natural products tropodithietic acid and dimenthylsulphoniopropionate on neuronal and oligodendroglial cells as well as Caenorhabditis elegans
Supervisor: Prof. Dr Meinhard Simon
Working Group: Biology of Geological Processes Prof. Dr. Meinhard Simon

Dr. Ann-Katrin Meinhardt
Thesis: Inorganic-geochemical investigation of Quaternary sediments of the Arctic Ocean
Supervisor: Prof. Dr Hans-Jürgen Brumsack
Working Group: Microbiogeochemistry Prof. Dr Hans-Jürgen Brumsack

Dr. René Jarling
Thesis: Transformations of hydrocarbons in anaerobic bacteria
Supervisor: Prof. Dr Heinz Wilkes
Working Group: Organic Geochemistry Prof. Dr Heinz Wilkes

Dr. Daniel Ritterskamp
Thesis: Evolutionary Dynamics in Food Webs Influence of Resources and Space
Supervisor: Prof. Dr Bernd Blasius
Working Group: Mathematical Modelling Prof. Dr. Bernd Blasius

Dr. Imke Büsing      
Thesis: Physiological and molecular characterization of genetic mutants of the anaerobic aromatic compound degrader "Aromatoleum aromaticum" EbN1
Supervisor: Prof. Dr. Ralf Rabus
Working Group: General & Molecular Microbiology Prof. Dr. Ralf Rabus

Dr. Georg Steinert   
Thesis: Microbial Diversity of Temperate and Tropical Sponges
Supervisor: Prof. Dr. Peter Schupp
Working Group: Environmental Biochemistry Prof. Dr. Peter Schupp

Dr. Maya Soora
Thesis: Role of light in the survival of Dinoroseobacter shibae during starvation
Supervisor: Prof. Dr Heribert Cypionka
Working Group: Palaeomicrobiology Prof. Dr Heribert Cypionka

Dr. Robert Fischer
Thesis: Relative Importance of Mixotrophy in the Marine Pelagial
Supervisor: Prof. Dr Helmut Hillebrand
Working Group: Planktology Prof. Dr. Helmut Hillebrand

Dr. Tanja Badewien
Thesis: Origin and characterisation of plant signals in surface and subrecent sediments of the southwest African continental slope
Supervisor: Prof. Dr Jürgen Rullkötter
Working Group: Organic Geochemistry Prof. Dr. Jürgen Rullkötter

Dr. Maike Abbas
Thesis: Analysis of the effects of plant diversity on the ecological stoichiometry of grassland ecosystems including multiple element cycling and trophic interactions
Supervisor: Prof. Dr Helmut Hillebrand
Working Group: Planktology Prof. Dr. Helmut Hillebrand

2014

Dr. Katja Fichtel
Thesis: Influence of crustal fluids on growth and activity of marine deep biosphere microbial populations
Supervisor: Prof. Dr Heribert Cypionka
Working Group: Palaeomicrobiology Prof. Dr Heribert Cypionka

Dr. Angelika Klugkist
Thesis: Investigation of selected organic pollutants and status indicators in surface sediments of the Jade Bay
Supervisor: Prof. Dr Jürgen Rullkötter
Working Group: Organic Geochemistry Prof. Dr. Jürgen Rullkötter

Dr. Nils Gülzow
Thesis: From Metacommunity to Metaecosystem: The impact of dispersal and spatiotemporal disturbance on diversity, ecosystem functions and stability
Supervisor: Prof. Dr Helmut Hillebrand
Working Group: Planktology Prof. Dr. Helmut Hillebrand

Dr. Katharina Drüppel (Wiegmann)
Thesis: Proteomic analyses of amino acid and carbohydrate degradation pathways in Phaeobacter inhibens DSM 17395
Supervisor: Prof. Dr. Ralf Rabus
Working Group: General & Molecular Microbiology Prof. Dr. Ralf Rabus

Dr. Shungudzemwoyo Pascal Garaba
Thesis: Shipborne hyperspectral remonte sensing of northwestern European shelf seas and Arctic waters
Supervisor: Prof. Dr Oliver Zielinski
Working Group: Marine Sensor Systems Prof. Dr Oliver Zielinski

Dr. Helena Osterholz
Thesis: From freshly produced compounds to refractory molecules - tracing sources and fate of dissolved organic matter in the ocean
Supervisor: Prof. Dr Thorsten Dittmar
Working group: Research Group for Marine Geochemistry (ICBM-MPI Bridge Group) Prof. Dr Thorsten Dittmar

Dr. Sandra Meier
Thesis: Spatiotemporal turnover of a phytoplankton metacommunity in a natural coastal system
Supervisor: Prof. Dr Helmut Hillebrand
Working Group: Planktology Prof. Dr. Helmut Hillebrand

Dr. Sven Alexander Lahme
Thesis: Physiological and molecular investigation of the anaerobic 4-methylbenzoate and benzoate degradation in Magnetospirillum sp.strain pMbN1
Supervisor: Prof. Dr. Ralf Rabus
Working Group: General & Molecular Microbiology Prof. Dr. Ralf Rabus

Dr. Sebastian Eckert
Thesis: The past and present trace metal budget of the Black Sea - A comparison of the Holocene and Eemian marine ingression
Supervisor: Prof. Dr Hans-Jürgen Brumsack
Working Group: Microbiogeochemistry Prof. Dr Hans-Jürgen Brumsack

2013

Dr. Qun Göthel
Thesis: Isolation and characterization of novel natural products from marine organisms: exemples from three sponges, an alga, and a scleractinian coral
Supervisor: Prof. Dr. Peter Schupp
Working Group: Environmental Biochemistry Prof. Dr. Peter Schupp

Dr. Jörn Logemann
Thesis: Intact polar lipids Possibility and limits of their use for the analysis of microbial communities
Supervisor: Prof. Dr Jürgen Rullkötter
Working Group: Organic Geochemistry Prof. Dr. Jürgen Rullkötter

Dr. Christoph Plum
Thesis: Diversity meets stoichiometry. The role of biodiversity for stoichiometric interactions in planktonic food webs
Supervisor: Prof. Dr Helmut Hillebrand
Working Group: Planktology Prof. Dr. Helmut Hillebrand

Dr. Hajo Zech
Thesis: Systems biology studies of the catabolism of Phaeobacter inhibens DSM 17395
Supervisor: Prof. Dr. Ralf Rabus
Working Group: General & Molecular Microbiology Prof. Dr. Ralf Rabus

Dr. Tim Engelhardt
Thesis: Viruses in the marine deep biosphere
Supervisor: Prof. Dr Heribert Cypionka
Working Group: Palaeomicrobiology Prof. Dr Heribert Cypionka

Dr. Sebastian Grashorn
Thesis: Wave-current interactions in coastal areas
Supervisor: Prof. Dr. Jörg Wolff
Working Group: Physical Oceanography Prof. Dr. Jörg Wolff

2012

Dr. Stefan Rösel
Thesis: Seasonal dynamics and changes in bacterial community composition in different limnic ecosystems
Supervisor: Prof. Dr Meinhard Simon
Working Group: Biology of Geological Processes Prof. Dr. Meinhard Simon

Dr. I Gusti Ngurah Agung Suryaputra
Thesis: Fluorescent dissolved organic matter (FDOM) in the coastal ocean: characterization, biogeochemical processes, and the possibility of in situ monitoring
Supervisor: Prof. Dr Thorsten Dittmar
Working group: Research Group for Marine Geochemistry (ICBM-MPI Bridge Group) Prof. Dr Thorsten Dittmar

Dr. Kamal Hariri     
Thesis: Phylogenetic study of historical herbaria as a methodology for a revision of the taxonomy of cyanobacteria
Supervisor: PD Dr Katarzyna Palinska

Dr. Cédric Meunier
Thesis: You eat what you need: food quality and trophic interactions in planktonic food webs
Supervisor: Prof. Dr Helmut Hillebrand
Working Group: Planktology Prof. Dr. Helmut Hillebrand

Dr. Christian Finke
Thesis: Deterministic and Stochastic Dynamics of a Mammalian Cold Receptor Model with Subthreshold Oscillations
Supervisor: Prof. Dr. Ulrike Feudel
Working Group: Theoretical Physics / Complex Systems Prof. Dr. Ulrike Feudel

Dr. Sebastian Thole
Thesis: Comparative and functional genome analysis of two closely related Phaeobacter gallaeciensis strains and other host-associated Roseobacter clade members
Working Group: Biology of Geological Processes Prof. Dr. Meinhard Simon

Dr. Sarah Hahnke
Thesis: Physiological characterization and molecular ecological investigation of diverse organisms of the Roseobacter clade isolated from the North Sea
Supervisor: Prof. Dr Meinhard Simon
Working Group: Biology of Geological Processes Prof. Dr. Meinhard Simon

Dr. Bettina Scholz
Thesis: Physiological adaptations of microphytobenthic Wadden sea diatoms to fluctuating environmental conditions and its influenc on community compositions
Supervisor: Prof. Dr Gerd Liebezeit

Dr. Joanna Filip
Thesis: Relevance of functional diversity in microbial food webs: Effects of grazer diversity on prey diversity and composition
Supervisor: Prof. Dr Helmut Hillebrand
Working Group: Planktology Prof. Dr. Helmut Hillebrand

Dr. Sarah Kohls
Thesis: Thevetia cardiac glycosides - Structure elucidation and methods for toxicological application
Supervisor: Prof. Dr Jürgen Rullkötter
Working Group: Organic Geochemistry Prof. Dr. Jürgen Rullkötter

2011

Dr. Kathleen Trautwein
Thesis: Physiological and proteomic response of "Aromatoleum aromaticum" EbN1 to substrate mixtures and carbon limitation
Supervisor: Prof. Dr. Ralf Rabus
Working Group: General & Molecular Microbiology Prof. Dr. Ralf Rabus

Dr. Daniela Kalhöfer
Thesis: Genome analysis and comparative genomics of host-associated bacteria of the marine Roseobacter clade
Supervisor: Prof. Dr Meinhard Simon
Working Group: Biology of Geological Processes Prof. Dr. Meinhard Simon

Dr. Jutta Graue
Thesis: Bioreactor Janssand - Fermentation processes in tidal-flat sediments often the German North Sea
Supervisor: Prof. Dr Heribert Cypionka
Working Group: Palaeomicrobiology Prof. Dr Heribert Cypionka

Dr. Anne-Ly Do
Thesis: Self-organization in continuous adaptive networks
Supervisor: Prof. Dr Bernd Blasius
Working Group: Mathematical Modelling Prof. Dr. Bernd Blasius

Dr. Tim Jäger
Thesis: The influence of highly diluted substances on the growth of arsenic-damaged plant (Lemna gibba L.) and microbial (Saccharomyces cerevisiae) organisms
Supervisor: Prof. Dr Meinhard Simon
Working Group: Biology of Geological Processes Prof. Dr. Meinhard Simon

Dr. Sebastian Grayek
Thesis: Data Assimilation in European Regional and Coastal Seas (Black Sea and German Bight)
Supervisor: Prof. Dr. Emil V. Stanev
Working Group: Coastal Research Prof. Dr. Emil Stanev

Dr. Claudia Dziallas
Thesis: Microbial interactions with cyanobacteria and zooplankton
Supervisor: Prof. Dr Meinhard Simon
Working Group: Biology of Geological Processes Prof. Dr. Meinhard Simon

Dr. Angela Vogts
Thesis: Waxy alkanes and alcohols in ocean sediments as indicators of continental climate change - validation of a molecular parameter
Supervisor: Prof. Dr Jürgen Rullkötter
Working Group: Organic Geochemistry Prof. Dr. Jürgen Rullkötter

Dr. Dagmar Rocker
Thesis: Bacterial degradation of refractory organic material in the Weser estuary and the North Sea
Supervisor: Prof. Dr Hans-Jürgen Brumsack
Working Group: Microbiogeochemistry Prof. Dr Hans-Jürgen Brumsack

Dr. Sabrina Beckmann
Thesis: Microbial Methane Formation in Abandoned Coal Mines in the Ruhr Basin of Germany
Supervisor: Prof. Dr Heribert Cypionka
Working Group: Palaeomicrobiology Prof. Dr Heribert Cypionka

2010

Dr. Jöran März
Thesis: Studying physical and biological aspects of coastal suspended particulate matter (SPM) dynamics using a novel distribution-based flocculation (DBFloc) model
Supervisor: Prof. Dr. Ulrike Feudel
Working Group: Theoretical Physics / Complex Systems Prof. Dr. Ulrike Feudel

Dr. Constanze Jenschke     
Thesis: Studying physical and biological aspects of coastal suspended particulate matter (SPM) dynamics using a novel distribution-based flocculation (DBFloc) model
Supervisor: Prof. Dr. Ulrike Feudel
Working Group: Theoretical Physics / Complex Systems Prof. Dr. Ulrike Feudel

Dr. Jan Moritz Holstein
Thesis: Microbial mediation of geochemical cycling in model studies of early diagenesis
Supervisor: Prof. Dr Berthe Corti

Dr. Jens Zahnow
Thesis: Aggregation and Fragmentation Dynamics of Inertial Particles in Fluid Flows
Supervisor: Prof. Dr. Ulrike Feudel
Working Group: Theoretical Physics / Complex Systems Prof. Dr. Ulrike Feudel

Dr. Kerstin Kolditz
Thesis: Investigation of pore water and sediment geochemistry in the salt marshes of Langeoog in the course of simulated transgression
Supervisor: Prof. Dr Hans-Jürgen Brumsack
Working Group: Microbiogeochemistry Prof. Dr Hans-Jürgen Brumsack

Dr. Thomas Riedel
Thesis: Investigations on the groundwater-surface exchange in the back mudflats of the island Spiekeroog
Supervisor: Prof. Dr Hans-Jürgen Brumsack
Working Group: Microbiogeochemistry Prof. Dr Hans-Jürgen Brumsack

Dr. Tim Lachnit
Thesis: Epibacterial Colonisation of Marine Macroalgae: From Communities to Compounds
Supervisor: Prof. Dr Tilmann Harder
Working Group: Environmental Biochemistry Prof. Dr Tilmann Harder

Dr. Edwin Alexander Cerquera Soacha
Thesis: Fast reconstruction of motion from multielectrode records of retinal ganglion cells
Supervisor: Prof. Dr. Ulrike Feudel
Working Group: Theoretical Physics / Complex Systems Prof. Dr. Ulrike Feudel

Dr. Stefanie Glöß
Thesis: Detection and characterisation of polyphosphate-storing bacteria in aquatic sediments
Supervisor: PD Dr Hans-Peter Grossart
Working Group: Biology of Geological Processes Prof. Dr. Meinhard Simon

2009

Dr. Dirk Brouwer
Thesis: Reconstruction of palaeoproductivity using Sr/Ca ratios and organic-geochemical biomarkers
Supervisor: Prof. Dr Jürgen Rullkötter
Working Group: Organic Geochemistry Prof. Dr. Jürgen Rullkötter

Dr. Claudia Scherr
Thesis: Effects of highly diluted substances on growth of plant and microbial model organisms

Dr. Marc Herlyn
Thesis: The mussel stock of the Lower Saxon tidal flats - quantitative assessment and spatio-temporal variability
Supervisor: Prof. Dr Ekkehard Vareschi
Working Group: Aquatic Ecology Prof. Dr. Ekkehard Vareschi

Dr. Helge-Ansgar Giebel
Thesis: The Roseobacter Clade Affiliated (RCA) Cluster: Its occurrence and abundance in the Southern Ocean and North Sea and physiological investigations of isolated strains
Supervisor: Prof. Dr Meinhard Simon
Working Group: Biology of Geological Processes Prof. Dr. Meinhard Simon

Dr. Andrea Kölzsch
Thesis: Large-scale biological transportation networks - cargo ship traffic and bird migration
Supervisor: Prof. Dr Hans-Jürgen Brumsack
Working Group: Microbiogeochemistry Prof. Dr Hans-Jürgen Brumsack

Dr. Ulf Gräwe     
Thesis: Hervey Bay - Insights from Numerical Modelling into the Hydrodynamics of an Australian Subtropical Bay
Supervisor: Prof. Dr. Ulrike Feudel
Working Group: Theoretical Physics / Complex Systems Prof. Dr. Ulrike Feudel

Dr. Gunnar Brandt     
Thesis: Ecological variability in coastal oceans: simulating biological- physical interactions with Lagrangian Individual-based models
Supervisor: Prof. Dr. Kraft

Dr. Kristine Michelle Hutalle-Schmelzer
Thesis: How does availability of allochthonous, dissolved organic matter (DOM) influence bacterial community composition in clear water and humic lakes?

Dr. Almut Bunte
Thesis: Geochemical signatures of black shale deposits of the Oceanic Anoxic Event 2 (Cenomanian/Turonian) in the tropical Atlantic (Demerara Rise, ODP Leg 207) and northern Germany (Wunstorf)
Supervisor: Prof. Dr Hans-Jürgen Brumsack
Working Group: Microbiogeochemistry Prof. Dr Hans-Jürgen Brumsack

Dr. George van Voorn
Thesis: Ecological Implications of Global bifurcations

Dr. Dirk Stiefs
Thesis: Relating generalized and specific modelling in population dynamical systems
Supervisor: Prof. Dr. Ulrike Feudel
Working Group: Theoretical Physics / Complex Systems Prof. Dr. Ulrike Feudel

Dr. Annette Grathoff
Thesis: Changes in bacterioplankton community composition by incubation with the freshwater macrophytes Iris pseudacorus and Mentha aquatica
Supervisor: Prof. Dr Luise Berthe-Corti

Dr Stephan Kotzur
Thesis: Simulation of diurnal and seasonal plankton dynamics in coastal waters
Supervisor: Prof. Dr. Wolfgang Ebenhöh

Dr. Maik Grunwald
Thesis: Dynamics of methane and nutrients in the Wadden Sea of the Southern North Sea: time series and budgets
Supervisor: Prof. Dr Hans-Jürgen Brumsack
Working Group: Microbiogeochemistry Prof. Dr Hans-Jürgen Brumsack

Dr. Daniel Ziehe
Thesis: Amino acid D/L ratios in biogenic carbonates as a key to dating Holocene sedimentation processes in the North German coastal region
Supervisor: Prof. Liebezeit
Working Group: Marine Chemistry

Dr. Michael Seidel   
Thesis: Intact polar membrane lipids as biomarkers for the characterisation of microbial communities in tidal flat sediments
Supervisor: Prof. Dr Jürgen Rullkötter
Working Group: Organic Geochemistry Prof. Dr. Jürgen Rullkötter

2008

Dr. Ann-Kathrin Scherf
Thesis: Geochemical characterisation of microbial mats from the tidal zone of the United Arab Emirates and incubation experiment to study microbial association
Supervisor: Prof. Dr Jürgen Rullkötter
Working Group: Organic Geochemistry Prof. Dr. Jürgen Rullkötter

Dr. Michael Meder
Thesis: Biological colonisation of facade coatings as a function of dispersion and pigment volume concentration

Dr. Elke Freese
Thesis: Characterisation of the organic material and investigation of the temperature-dependent fatty acid composition of bacteria from sediments of the Spiekeroog back mudflats
Supervisor: Prof. Dr Jürgen Rullkötter
Working Group: Organic Geochemistry Prof. Dr. Jürgen Rullkötter

Dr. Goran Georgievski
Thesis: Implications of the Late Quaternary Glacio-Eustatic Sea level Changes in the Black Sea Catchment Area
Supervisor: Prof. Dr. Ulrike Feudel
Working Group: Theoretical Physics / Complex Systems Prof. Dr. Ulrike Feudel

Dr. Anne-Marie Berghoff
Thesis: Suitability of microcosms for the assessment of self-purification processes (natural attenuation) in the groundwater of a former coking plant site

Dr. Urlike Pogoda de la Vega   
Thesis: Residual restoration of DNA lesions in Deinococcus radiodurans mutants indicate presence of a bypass UV-repair process

Dr. Jörg Fichtel
Thesis: Determination of the endospore fraction of the microbial community in tidal flat sediments
Supervisor: Prof. Dr Jürgen Rullkötter
Working Group: Organic Geochemistry Prof. Dr. Jürgen Rullkötter

Dr. Knut Bernhardt
Thesis: Data-adaptive reduction of process-based models
Supervisor: Prof. Dr Heribert Cypionka
Working Group: Palaeomicrobiology Prof. Dr Heribert Cypionka

Dr. Ursula Frerichs-Deeken
Thesis: Bacterial 2,4-dioxygenases: Studies to elucidate the catalytic mechanism of cofactor-free 1H-3-hydroxy-4-oxoquinine 2,4-dioxygenase.
Supervisor: Prof. Dr. Fetzner

2007

Dr. Antje Gittel
Thesis: Community structure, activity and ecophysiology of sulfate-reducing bacteria in deep tidal flat sediments
Supervisor: Prof. Dr Heribert Cypionka
Working Group: Palaeomicrobiology Prof. Dr Heribert Cypionka

Dr. Ann Warimu Muohi
Thesis: Bioaccumulation of trace metals in biota (Algae and Chironomids) from Kenyan saline lakes (Bororia and Nakuru): Evaluation and verification of two compartment toxicokinetic models
Supervisor: Prof. Dr. Irene Witte

Dr. Katja Bosselmann
Thesis: Sulfate reduction and iron-manganese cycling in intertidal surface sediments of the southern North Sea
Supervisor: Prof. Dr Heribert Cypionka
Working Group: Palaeomicrobiology Prof. Dr Heribert Cypionka

Dr. Kristine Jung
Thesis: Evalucation of spatial and temporal models to assess the bioaccumulation of trace metals in marine invertebrates
Supervisor: Prof. Dr Ekkehard Vareschi
Working Group: Aquatic Ecology Prof. Dr. Ekkehard Vareschi

Dr. Ka Sin Lam  
Thesis: Allelopathy of marine macroalgae against microbial epibiosis
Supervisor: Prof. Dr Tilmann Harder
Working Group: Environmental Biochemistry Prof. Dr Tilmann Harder

Dr. Markus Harle
Thesis: Characterisation of local properties and prediction in chaotic dynamical systems
Supervisor: Prof. Dr. Ulrike Feudel
Working Group: Theoretical Physics / Complex Systems Prof. Dr. Ulrike Feudel

Dr. Michael Buschermöhle
Thesis: Neurosensory Modeling of Signal Detection in Comodulated Noise
Supervisor: Prof. Dr Ebenhöh

Dr. Melanie Beck
Thesis: Pore water biogeochemistry and trace metal dynamics in deep intertidal flat sediments
Supervisor: Prof. Dr Hans-Jürgen Brumsack
Working Group: Microbiogeochemistry Prof. Dr Hans-Jürgen Brumsack

Dr. Mathias Sandulescu
Thesis: Transport and biological activity in chaotic open flosw: a numerical study in idealized oceanic flows
Supervisor: Prof. Dr. Ulrike Feudel
Working Group: Theoretical Physics / Complex Systems Prof. Dr. Ulrike Feudel

Dr. Ferdinand Esser
Thesis: Do microbial or biochemical settlement cues on the sediment surface mediate larval settlement of Polydora cornuta and Streblospio benedicti(Polychaeta, Spionidae)?
Supervisor: Prof. Dr Tilmann Harder
Working Group: Environmental Biochemistry Prof. Dr Tilmann Harder

Dr Ralf Wöstmann
Thesis: Biomarkers in peat-forming plants and their deposits in the northwestern German coastal region as indicators of post-glacial vegetation change
Supervisor: Prof. Dr Jürgen Rullkötter          
Working Group: Organic Geochemistry Prof. Dr. Jürgen Rullkötter

Dr. Parisa Mohammadi      
Thesis: Rock inhabition and Deteriorating Fungi from Carbonate Monuments of Persepolis - Isolation,Characterization, and Inhibitory Treatment
Supervisor: Prof. Dr. Wolfgang Krummbein        

Dr. Kevin Bube
Thesis: Surface Characterisation with Nonliear Methods Based on Scale Analysis
Supervisor: Prof. Dr Heribert Cypionka
Working Group: Palaeomicrobiology Prof. Dr Heribert Cypionka

Dr. Beate Rink
Thesis: Structure and dynamics of heterotrophic bacterial communities in the Wadden Sea and the German Bight
Supervisor: Prof. Dr Meinhard Simon
Working Group: Biology of Geological Processes Prof. Dr. Meinhard Simon

Dr. Beate Köpke
Thesis: Distribution, composition and activities of microbial communities in tidal flat sediments from the surface to several metres depth
Supervisor: Prof. Dr Meinhard Simon
Working Group: Biology of Geological Processes Prof. Dr. Meinhard Simon

Dr. Marcus Nachtkamp
Thesis: Combination effect of lipophilic and hydrophilic substances - impact on composition and metabolic activity of marine bacterial communities
Supervisor: Prof. Dr Luise Berthe-Corti

Dr. Zita Sebesvari
Thesis: Sediment-associated signals for larval settlement of Poydora corunta and Streblospio benedicti (Polychaeta, Spionidae)
Supervisor: Prof. Dr Tilmann Harder
Working Group: Environmental Biochemistry Prof. Dr Tilmann Harder

2006

Dr. Xin Liu
Thesis: Developing and Testing Integrated Decsion Support Models for Coastal Management
Supervisor: Prof. Dr. Jörg Wolff
Working Group: Physical Oceanography (Theory)

Dr. Jacqueline Süß
Thesis: Cultivation-dependent analysis of microbial communities in sapropelas of the eastern Mediterranean Sea
Supervisor: Prof. Dr Heribert Cypionka
Working Group: Palaeomicrobiology Prof. Dr Heribert Cypionka

Dr. Martin Allgaier
Thesis: Diversity and dynamics of bacterial communities in four selected lakes of the Mecklenburg Lake District
Supervisor: Prof. Dr Heribert Cypionka
Working Group: Palaeomicrobiology Prof. Dr Heribert Cypionka

Dr. Willm Martens-Habbena
Thesis: Microbial communities at the chemocline of anoxic basins of the central Baltic Sea
Supervisor: Prof. Dr Heribert Cypionka
Working Group: Palaeomicrobiology Prof. Dr Heribert Cypionka

Dr. Verena Reineke
Thesis: Toxic effects of aromatic hydrocarbon mixtures isolated from crude oils to blue mussels (Mytilus edulis)
Supervisor: Prof. Dr Heribert Cypionka
Working Group: Palaeomicrobiology Prof. Dr Heribert Cypionka

Dr. Simone Geyer
Thesis: Combined effects of heavy metals and UVA/B radiation on the composition and metabolic activity of marine bacterial communities
Supervisor: Prof. Dr. Wolfgang Krummbein

Dr. Florian Rommerskirchen
Thesis: Fossil C4 plant signals in Southeast Atlantic Ocean continental margin sediments indicate climate-dependent vegetation changes on
Supervisor: Prof. Dr Jürgen Rullkötter          
Working Group: Organic Geochemistry Prof. Dr. Jürgen Rullkötter

(Changed: 2021-06-18)