Graduate Project
 

The use of GIS in the analysis and prediction of available salmon habitat in an Oregon coastal stream

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https://ir.library.oregonstate.edu/concern/graduate_projects/4x51hj600

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  • Because of declines in salmon populations in recent years, the health of salmon habitat, in particular, is the focus of many resource agencies. The objective of this study is to use GIS to predict the location of suitable habitat. With data from an extensive set of stream surveys, GIS was used to query data, attempting to highlight any remaining high quality habitat and examine limiting factors for additional habitat. In order to determine what ranges of environmental parameters are ideal for salmon, a review of professional papers outlining salmonid habitat requirements was performed and a public information brochure prepared and peer reviewed. With the ranges outlined, data from studies were queried to find those streams that met the habitat requirements. The results are portions of a stream that are identified as having the appropriate conditions for salmon during a specific time during its life history, i.e. spawning, incubation, and rearing. This information was displayed and compared to existing estimations of "appropriate" habitat determined by best professional judgement of ODFW biologists. In general the predicted fish use areas matched estimations by ODFW and the CSRI core area information with only a few exceptions.
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  • File scanned at 300 ppi (Monochrome, 24-bit Color) using ScandAll PRO 1.8.1 on a Fi-6770A in PDF format. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR.
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