Microbial community composition, extracellular enzymatic activities, and structure-function relationships in the central Arctic Ocean, a high-latitude fjord, and the North Atlantic Ocean ...
Due to their abundance, diversity, and capabilities to transform and metabolize diverse compounds, microbial communities regulate biogeochemical cycles on micro-, regional, and global scales. The activities of microbial communities affect the flow of matter, energy sources of other organisms, and hu...
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| Format: | Thesis |
| Language: | English |
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The University of North Carolina at Chapel Hill University Libraries
2018
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| Online Access: | https://dx.doi.org/10.17615/awwt-vg37 https://cdr.lib.unc.edu/concern/dissertations/fx719n53p |
| Summary: | Due to their abundance, diversity, and capabilities to transform and metabolize diverse compounds, microbial communities regulate biogeochemical cycles on micro-, regional, and global scales. The activities of microbial communities affect the flow of matter, energy sources of other organisms, and human health, as well as other aspects of life. Yet, the composition, diversity, and ecological roles of microbes in parts of the global oceans—from the high latitudes to the deep water column—remain underexplored. Drawing from microbiological, oceanographic, and ecological concepts, this dissertation explores several fundamental topics: 1) the manner in which hydrographic conditions influence microbial community composition; 2) the ability of these microbial communities across environmental and depth gradients to hydrolyze organic compounds; and 3) microbial structure-function relationships in different habitats and under altered environmental conditions. In the central Arctic Ocean, the composition and enzymatic ... |
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