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8 <br />Table 2. Ranges in percentages of sucker larvae eaten by fathead minnows in various <br />combinations of cover and water depth in tanks (trial 6). Each of three tanks in <br />each cover/water depth combination contained 10 fathead minnows and 20 <br />shortnose sucker larvae. Percentages were ranked from low to high, and ranks <br />were used in subsequent nonparametric two factor ANOVA and multiple <br />comparison procedures. Bold letters next to rank stuns show results of multiple <br />comparisons; factor combinations with letters in common were not significantly <br />different (a=0.10). <br />Range of % <br />Factor combination mortality Sum of ranks <br />low water, cover present 15-45 10.O a <br />high water, cover absent 10-100 18.5ab <br />high water, cover present 45-100 22.5 ab <br />low water cover absent 65-100 27.0 b