Table 17. Predominant instream cover of SHAD sample sites located in the Meramec River basin, Missouri 1991-96. Values represent percentage of predominant cover types for riffles and pools within each sample site. Some areas had no description for riffle or pool.
No. of Riffles and Pools Sampled Instream Cover for Pools and Riffles
B1 CB2 CO3 M/V4 WS5 NC6 R7 RK8 G9 ND10
LOWER MERAMEC WATERSHED
90 33% 1% 9% 3%/2% 17% 6% 3% 12% 3% 10%
DRY FORK WATERSHED
38 13% 5% 16% 3%/0% 37% 24% 3%
UPPER MERAMEC WATERSHED
42 5% 5% 12%/14% 32% 14% 17% 2%
HUZZAH CREEK WATERSHED
44 20% 10% 8%/15% 35% 5% 5% 3%
COURTOIS CREEK WATERSHED
30 13% 3% 13% 37%/10% 7% 17%
UPPER MIDDLE MERAMEC WATERSHED
32 19% 3% 3%/9% 28% 13% 13% 12%
INDIAN CREEK WATERSHED
26 8% 4%/15% 27% 31% 12% 4%
LOWER MIDDLE MERAMEC WATERSHED
50 10% 6% 8% 4%/4% 36% 12% 8% 10%

1B = 'Boulder' 2CB = 'Undercut bank' 3CO = 'Cobble\Gravel' 4M/V = 'Macrophytes (water willow, water milfoil)/Overhanging vegetation' 5WS = 'Woody structure (fallen)' 6NC = 'No cover' 7R = 'Roots' 8RK = 'Rock, bedrock, asphalt, concrete' 9G = 'Garbage - (refrigerators, cars, washers)' 10ND = 'No description'

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