Studies on the life cycle of akinete forming cyanobacterium Cylindrospermopsis raciborskii in the temperate region [Elektronische Ressource] / by Emilienne Ingie Tingwey

PhD Thesis STUDIES ON THE LIFE CYCLE OF AKINETE FORMING CYANOBACTERIUM Cylindrospermopsis raciborskii IN THE TEMPERATE REGION A thesis approved by the Faculty of Environmental Sciences and Process Engineering at the Brandenburg University of Technology in Cottbus in partial fulfilment of the requirement for the award of the academic degree of PhD in Environmental and Resource management By Master of Science Emilienne Ingie Tingwey From: Douala-Wouri, Cameroon Supervisor: Prof. Dr. rer. nat. habil. Brigitte Nixdorf Supervisor: Prof. Thomas Raab th20 April 2009 Day of the oral examination: In loving memory of my father Peter Fon Tingwey (10.12.1939-07.10.2001) ACKNOWLEDGEMENTS I would first like to acknowledge and immensely thank IPSWAT-International Postgraduate Studies in Water Technologies for materially and financially sponsoring my studies through out these three years period. To my supervisors special thanks, Professor Dr. rer. nat. Brigitte Nixdorf and Dr Jacqueline Rücker you gave me an opportunity to do this research in which I am really interested, and make this thesis possible in the Department of Fresh Water Conservation at the Brandenburg University of Technology, Cottbus. I sincerely can not help expressing how I should credit this thesis to their support and guidance whenever I dropped in their offices or sent an email, their encouragement and stimulation throughout the duration of my writing up.