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Microbial processes and element cycling from micro- to meso-scale : from single cells and aggregates to the whole water column perspective.
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Other Titles: | Mikrobielle Prozesse und Elementkreisläufe von der Mikro- zur Meso-Skale : von Einzelzellen und Aggregaten zu einer Gesamtwassersäulenperspektive. | Authors: | Rogge, Andreas ![]() |
Supervisor: | Waite, Anya M. | 1. Expert: | Waite, Anya M. | 2. Expert: | Iversen, Morten H. | Abstract: | Marine microorganisms are important drivers of the C-, N- and S- cycles on earth. They can adapt to various substrates and, thus, inhabit extreme environments, such as sub- and anoxic or even sulfidic waters or micro-zones within sinking particles. The latter still represent a major black box in microbial ecology due to their fragile nature, which makes them inaccessible for detailed micro-scale observations. Moreover, sinking particles and their complex communities represent a biogeochemical link between small- and large-scale processes because they are shaped by a wide variety of physical and biological processes ranging from the micro- to meso-scale. In this thesis, cutting-edge methodologies were applied to investigate microbial processes of free-living and particle-associated organisms at the micro-scale, and to build strategies to integrate these processes into a broader understanding of microbial dynamics at oceanographic scales of relevance to the global ocean. |
Keywords: | microbial ecology, stable isotope probing, marine snow, particle dynamics, biological oceanography, biological carbon pump | Issue Date: | 1-Apr-2019 | Type: | Dissertation | URN: | urn:nbn:de:gbv:46-00107425-12 | Institution: | Universität Bremen | Faculty: | FB2 Biologie/Chemie |
Appears in Collections: | Dissertationen |
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