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dc.contributor.authorSmikrud, Kathy M.
dc.date.accessioned2015-08-25T22:38:55Z
dc.date.available2015-08-25T22:38:55Z
dc.date.issued2007-05
dc.identifier.urihttp://hdl.handle.net/11122/5872
dc.descriptionThesis (M.S.) University of Alaska Fairbanks, 2007en_US
dc.description.abstractRemote sensing offers an alternative method to managers in mapping and monitoring the habitat within large rivers. Large rivers are not accommodating for traditional (foot) fish habitat surveys due to their size and typically complex habitat. This study investigates the use of digital aerial photos and thermal infrared images acquired in spring 2003-2005 to map and quantify juvenile chinook salmon (Oncorhynchus tshawytscha) habitat in a 12-river km section of the Unuk River floodplain in Southeast Alaska. Images were processed and analyzed to produce a fluvial landscape classification (7 landcover classes with an overall classification accuracy of ~84%) using a combination of aerial and thermal images. Change detection of large woody debris (LWD) was also examined and revealed both quantitative and distributional changes during the 3 years. A GIS-based habitat suitability analysis was used to identify potential chinook salmon rearing habitats including: river channel edges, sloughs, braids, pools associated with LWD and primary river channels. Overall 77.82 hectares of potentially medium/high chinook rearing habitats were identified. Results from this study provide a promising foundation towards mapping and monitoring salmon habitat in large river systems for purposes of protection, conservation and monitoring to ensure sustainable stocks of salmon.en_US
dc.description.tableofcontentsMonitoring large woody debris dynamics in the Unuk River, Alaska -- Decision-based fusion for improved fluvial landscape classification using digital aerial photographs and forward looking infrared images -- A GIS-based approach to map and quantify chinook salmon rearing habitat in a large glacial floodplain river in Southeast Alaska.en_US
dc.language.isoen_USen_US
dc.titleA remote sensing-GIS based approach for assessment of chinook salmon rearing habitat in the Unuk river floodplainen_US
dc.typeThesisen_US
dc.type.degreemsen_US
dc.identifier.departmentFisheries Divisionen_US
refterms.dateFOA2020-03-13T01:18:08Z


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