8112

• UCREFRP Catalog Number: 8112
• Author: Osmundson, D. B. and B. K. Scheer.
• Title: Monitoring Cobble-Gravel Embeddedness in the Streambed of the Upper Colorado River, 1996-1997.
• USFW Year: 1998.
• USFW - Doc Type: Grand Junction, CO.
• Copyright Material: NO

Table 1. Results of ANOVA for rock width comparisons. Analyses were run on particle size
means and medians (D-50). All values are adjusted means; values for the median column are
adjusted means of the medians. Results of individual Strata-Bank comparisons are from the
Tukey-Kramer multiple comparison test.
Mean Median
Year 1996 74.9 69.0
1997 74.4 70.8
P 0.6391 0.6485
Strata 9 15-mile 70.4 64.8
818-mile; 78.9 74.9
P < 0.0000005 0.01409
Bank Upper 64.1 58.7
Lower 85.2 81.0
P < 0.0000005 0.000001
Habitat Run 76.6 71.9
Riffle 72.7 67.9
P 0.000534 0.3151
Strata-Bank
62.5 60
5
8-Tipper .7
65 .
P NS NS
9-Lower 78.3 72.8
8-Lower 92.0 89.3
P S S
9-Upper 62.5 56.9
9-Lower 78.3 72.8
P S S
8-Upper 65.7 60.5
8-Lower 92.0 89.3
P S S
Strata-Habitat
9-Run 72.2 66.4
8-Run 81.0 77.3
P S NS
9-Riffle 68.6 63.3
8-Riffle 76.8 72.4
P S NS
9-Run 72.2 66.4
9-Riffle 68.6 63.3
P NS NS
8-Run 81.0 77.3
8-Riffle 76.8 72.4
P NS NS
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