The Leibniz Centre for Tropical Marine Research ( in Bremen is a member of the Leibniz Association, which is supported by the German Federal and State Governments. Through its research, ZMT contributes to developing science-based strategies for sustainable use of tropical coastal systems.

We are looking for a

Postdoctoral Researcher in
Biogeochemical Modelling (f/m/d)

(Reference number: 158)

Ocean warming, ocean acidification, and ocean deoxygenation are three major processes of global change. In the last decades, these processes have been the subject of very active research. However, each of them has been studied with different emphases and tools and largely in isolation of the other. Recent observations reveal a significant expansion of oxygen minimum zones in tropical and subtropical waters and further evidence shows that the deoxygenation of coastal environments is not only highly interconnected with other global stressors but also with local environmental disturbances like nutrient enrichment. We plan to use biogeochemical modelling to investigate the interactions between global and local stressors and the effects these interactions have on chemical and biological processes within the tropical oceans. We aim to address both direct effects on the nitrogen cycle and aerobic organisms and indirect consequences through altered ecological interactions involving the affected inorganic nutrients and taxa. Ultimately, we intend to quantify the impacts on functional attributes of communities such as productivity and biodiversity.

Job tasks:

The postdoctoral scientists will either modify an existing biogeochemical model of the coastal environments or develop a new model. The model will be appropriately engineered for studying the effects of different stressors on organisms and communities. The model will then be used in combination with different observational data to (1) understand the mechanisms driving the deoxygenation of coastal environments, (2) investigate the possible interactions between multiple processes, including ocean acidification, ocean deoxygenation, nutrient eutrophication, and nitrogen fixation, and (3) explore possible future impacts on the nitrogen cycle and on the composition of ecological communities under different climate change scenarios.


Applicants should hold a PhD degree in Geosciences, Marine Biogeochemistry, Marine Chemistry, Environmental Sciences, Earth Systems Science, or Physical Oceanography. A strong and proven background in mathematical modelling and advanced programming skills in python and/or C and C++ as well as an excellent spoken and written English are mandatory.

For additional information please contact: Prof. Dr. Agostino Merico:

Details of the position:

The candidate will be on fulltime position and on a 24-month contract. Salary will be paid according to the German TV-L EG 13.

ZMT is an equal opportunity employer. Applicants with a migration background are welcome. Disabled persons with comparable qualification receive preferential status.

With a diving certificate and diving experience we give you the opportunity for further qualification in this area and the opportunity to participate in research expeditions.

We offer:

  • An exciting working environment in an interdisciplinary and internationally oriented institute and research project
  • Possibilities to build and extend an international professional network and participate in a research field of high public and scientific interest
  • A family-friendly working environment

Submission of application: Please send your application, including a motivation letter, a copy of the doctoral degree and master's (Diplom) certificate, a complete CV with a list of publications and skills, names with email addresses and telephone numbers of two referees, by March 31, 2020 as a single pdf file with the reference number "158- Post Doc" to Ms. Lena Oehlmann, email:

Leibniz Centre for Tropical Marine Research, Fahrenheitstraße 6, D-28359 Bremen.

posted: 31 January 2020     Please mention EARTHWORKS when responding to this advertisement.