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ISMP backwater sampling evaluation exceeded those estimated by DMR sampling. For the 34 backwaters for which 95 % confidence intervals could be calculated for red shiner DMR density estimates, only one ISMP estimate fell within those intervals. The correlation between ISMP and DMR density estimates for red shiner over the two sample years was positive, albeit relatively low Q2 = 0.42, p < 0.0001, n = 38). Density of sand shiners estimated from ISMP sampling equaled 67 % of the density of sand shiners estimated by DMR sampling (0 to 183 %, Figs. 18 and 19) and eleven of 41 ISMP density estimates exceeded those estimated by DMR sampling. For the 33 backwaters for which 95 % confidence intervals could be calculated for sand shiner DMR density estimates, only one ISMP estimate fell within those intervals. The correlation between ISMP and DMR density estimates for sand shiner over the two sample years was positive and relatively high (rZ = 0.79, p < 0.0001, n = 38), but these and other correlations may be over- influenced by a few relatively large values. On average, density of fathead minnow estimated from ISMP sampling equaled 66 % of the density of fathead minnow estimated by DMR sampling (0 to 230 %, Figs. 20 and 21). Out of 38 estimates, nine ISMP density estimates exceeded those from DMR sampling. For the 36 backwaters for which 95 % confidence intervals could be calculated for fathead minnow DMR density estimates, only six ISMP estimates fell within those intervals. The correlation between ISMP and DMR density estimates for fathead minnow over the two sample years was positive, albeit relatively low (r2 = 0.56, p < 0.0001, n = 38). The proportion of fish removed from depletion backwaters on each pass was calculated (number captured per pass/estimated fish abundance) for three cyprinid and two centrarchid species in order to estimate the total number of fish removed by successive passes (Table 4, -16-