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. . Tests conducted between the 2-hour and the 24-hour monitoring programs were designed to investigate whether the 2-hour program represented the habitats utilized by a fish throughout the day and night. Distributions created for the 2-hour program included all 2-hour samples except those collected in conjunction with 24-hour moni to ring . Distributions for the 24- hour program included the 2-hour samples collected in conjunction with the 24- hour monitoring. However, tests conducted to compare distributions for nose measurements with those taken one meter in or out used all 2-hour monitoring data, including those collected in conjunction with the 24-hour sampling. . . The distributions of raw depth or velocity data between two data sets were tested using the KolmorgorovjSmirnov (KjS) cumulative frequency test (Press et ale 1986). A '0' statistic was calculated that is defined as the maximum absolute difference between two cumulative distribution functions. If the erobability Ip-u9l associated with '0' was l~ss than .9..&.5, the two distriliitions were considered to be signifjJ:antllCr-..d-i.f.TPrent. Means of each depth and velocity partition were also calculated. . Distributions of substrate types were tested using the Chi-square test (Press et ale 1986). Sample sizes were normalized to the smallest sample size of a pair, since the test for difference between substrate types (without testing for difference in total sample size) must be done with even sample size. . . . . . 12 .