. The Big Blackfoot River restoration progress report for 2002 and 2003 . Fish populations; Fishes; Fishery management; Trout fisheries; Stream ecology; Blackfoot River (Mont. ). Unlike the Johnsrud section, we have not observed northern pike in the Scotty Density/1000' (+95%CI) Density/1000' (+95%CI) 250 â¡ ISg - â > L tL 1 ,.... 4 Wt. rta k\ ii 1989 1990 1991 1993 1996 1998 2000 2002. 1989 1990 1991 1993 1996 1998 2000 2002 Figure 16. Estimated Rainbow trout densities for the Johnsrud (left) and Scotty Brown Bridge (right) sections, 1989-2002. Brown Bridge section in samples
. The Big Blackfoot River restoration progress report for 2002 and 2003 . Fish populations; Fishes; Fishery management; Trout fisheries; Stream ecology; Blackfoot River (Mont. ). Unlike the Johnsrud section, we have not observed northern pike in the Scotty Density/1000' (+95%CI) Density/1000' (+95%CI) 250 â¡ ISg - â > L tL 1 ,.... 4 Wt. rta k\ ii 1989 1990 1991 1993 1996 1998 2000 2002. 1989 1990 1991 1993 1996 1998 2000 2002 Figure 16. Estimated Rainbow trout densities for the Johnsrud (left) and Scotty Brown Bridge (right) sections, 1989-2002. Brown Bridge section in samples to date. Wales Creek Section In 2002, we established a new fish population survey site (the Wales Creek section) in a middle reach of Blackfoot River between the North Fork Blackfoot River and Nevada Creek (rm ). This section of the Blackfoot River suffers from impaired water quality (elevated levels of fine sediment, summer water temperatures, and nutrient levels) and degraded tributaries (Pierce et al. 2001). In May 2002, trout species composition (% of total catch) in the Wales Creek section was brown trout (n=136), rainbow trout (n=15), WSCT (n=10) and bull trout (n=3). We estimated total trout density (> ;) for the Wales Creek section at fish /1000'. Of this, the brown trout (> ;) point estimate was fish/1000\ We did not attain density estimates for the other species due to low densities and small sample size. Estimated total trout densities (>;) in the Wales Creek Section are 86% lower than the nearest downstream survey section (Scotty Brown Bridge Section). A comparison of estimated densities of salmonids in the three 2002 Blackfoot River survey sections are displayed in Figure 3. 31. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original
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Keywords: ., bookcollectionamericana, booklea, booksubjectfishes, bookyear2004
