the 1960's and 1970s. A comprehensive inventory of tributary fisheries has yet to be 

 ftilly initiated in this region. 



Methods 



Using packhorses and mules, fisheries crews established four remote base camps 

 near high mountain lakes during the summer of 2005. Over the course of four weeks, we 

 mapped lake bathymetry, set experimental sinking overnight gillnet sets in each of 13 

 lakes and performed related assessments. Where possible, we placed nets at previous 

 survey locations. From netted fish, we collected measurements of total length, weight, 

 scales, fin clips and recorded observed diet items. From these data, we assessed relative 

 abundance, size distribution, growth, condition factor and Oncorhynchus genetic 

 composition and food habits information. Using GPS locations and water depths (sonic 

 depth finders) at discrete points, we mapped the bathymetry of lakes fi-om transect, and 

 the 5' contour surveys using an inflatable canoe. We mapped lake perimeters by foot 

 using GPS units. All lake location data were entered into EXCEL spreadsheet and 

 bathymetry mapped using the GIS ArcView spatial analyst module. During lake 

 transects, we also collected water chemistry (ph, total dissolved solids and conductivity) 

 and secchi disc measurements and Wisconsin zooplankton tow samples. While mapping 

 lake perimeters, we recorded observations related to the presence of juvenile fish, 

 amphibians, macro-invertebrates, plant communities, noteworthy wildlife, etc., and we 

 identified camping areas and trails in the area. 



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