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Title

Evaluating Physical Habitat and Water Chemistry Data from Statewide Stream Monitoring Programs to Establish Least-Impacted Conditions in Washington State

 
Publication number Date Published
15-03-011April 2015
VIEW NOW: Evaluating Physical Habitat and Water Chemistry Data from Statewide Stream Monitoring Programs to Establish Least-Impacted Conditions in Washington State (Number of pages: 93) (Publication Size: 2174KB)




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Author(s) Wilmoth, S.K.C., Irvine, K.M., and Larson, C.A.
Description Various GIS-generated land-use predictor variables, physical habitat metrics, and water chemistry variables from 75 reference streams and 351 randomly sampled sites throughout Washington State were evaluated for effectiveness at discriminating reference from random sites within level III ecoregions. A combination of multivariate clustering and ordination techniques were used.

We describe average observed conditions for a subset of predictor variables as well as proposing statistical criteria for establishing reference conditions for stream habitat in Washington. Using these criteria, we determined whether any of the random sites met expectations for reference condition and whether any of the established reference sites failed to meet expectations for reference condition. Establishing these criteria will set a benchmark from which future data will be compared.

For Watershed Health Monitoring, see link under Web Page below.

For Stream Biological Monitoring, see https://ecology.wa.gov/StreamBiology
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Contact Chad Larson at 360-407-7456 or clar461@ecy.wa.gov
Keywords water chemistry, watershed health, physical habitat, streams, benthic
WEB PAGE Watershed Health Monitoring
DATA Environmental Information Management (EIM) #WHM_BIO

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Environmental Information Management (EIM) #WHM_SEN

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