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Using multispectral aerial imagery and GIS-based approaches to quantify juvenile salmon rearing habitat in the Kulukak River, Alaska

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dc.contributor.author Woll, Christine
dc.date.accessioned 2018-05-31T22:15:38Z
dc.date.available 2018-05-31T22:15:38Z
dc.date.issued 2012-05
dc.identifier.uri http://hdl.handle.net/11122/8471
dc.description Thesis (M.S.) University of Alaska Fairbanks, 2012 en_US
dc.description.abstract Monitoring the quality and quantity of freshwater rearing habitat for Pacific salmon Oncorhynchus spp. is essential for maintaining stocks of these species. Because field-based habitat monitoring in remote areas can be expensive, time-consuming, and/or subjective, new methods are desired. The objectives of this study were (1) to develop methods for using multispectral aerial imagery to classify juvenile rearing habitat and determine the accuracy of these methods and (2) to use these methods to quantify and map juvenile salmon habitat characteristics in two study areas in the Kulukak River, Alaska. I demonstrated that a decision-based fusion approach using images acquired in the visible, near-infrared, and thermal-infrared regions classified habitat classes important for juvenile salmon with accuracies of 82.5% and 67.5% in the respective study areas. In addition, I quantified and mapped habitat variables often used in juvenile salmon studies on several scales and created habitat-suitability maps for coho salmon O. kisutch, demonstrating that both my study areas differed in habitat quantity and quality and are most likely low-quality rearing areas. This study demonstrates that airborne images can be used to determine the quality and quantity of juvenile Pacific salmon rearing habitat in small streams and thus decision support in fisheries management. en_US
dc.language.iso en_US en_US
dc.subject Pacific salmon en_US
dc.subject Habitat en_US
dc.subject Alaska en_US
dc.subject Kulukak River en_US
dc.title Using multispectral aerial imagery and GIS-based approaches to quantify juvenile salmon rearing habitat in the Kulukak River, Alaska en_US
dc.type Thesis en_US
dc.type.degree ms en_US
dc.identifier.department Fisheries Division en_US
dc.contributor.chair Sutton, Trent
dc.contributor.committee Prakash, Anupma
dc.contributor.committee McPhee, Megan


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