Mapping the microscale variability of microphytobenthos: Development of a hyperspectral imaging method
|Other Titles:||Kartierung der Mikrovariabilität von Mikrophytobenthos: Entwicklung einer Hyperspektrale Abbildgebungsmethode||Authors:||Chennu, Arjun||Supervisor:||Polerecky, Lubos||1. Expert:||Boetius, Antje||2. Expert:||Hinrichs, Kai-Uwe||Abstract:||
Microphytobenthos (MPB) is a grouping of microbial benthic phototrophs that inhabit the sediments of coastal regions. There are clear indications that MPB distributions exhibit profuse spatio-temporal variability on the scale of milli- to centi-meters, which corresponds to the spatial span of their proximal habitats. This microscale variability in MPB distributions escapes detection by most traditional measurement techniques. Analysis of the spatio-temporal aspects of MPB ecology is limited due to the inability of current methods to capture the MPB distributions with high spatial and temporal resolution. This doctoral study identifies a methodological gap in our ability to measure in situ MPB distributions at the microscale and attempts to rectify it through the development of a field instrument and measurement protocol that utilize hyperspectral imaging technology. The ecological applications of the novel ability to measure and visualize full-field patterns of MPB distribution with a high temporal resolution are explored in subsequent studies.
|Keywords:||hyperspectral imaging, chlorophyll distribution, chlorophyll dynamics, microscale, mapping, spatio-temporal variability, benthic microalgae, photosynthesis||Issue Date:||17-Feb-2014||URN:||urn:nbn:de:gbv:46-00103657-18||Institution:||Universität Bremen||Faculty:||FB5 Geowissenschaften|
|Appears in Collections:||Dissertationen|
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