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10 <br />s <br />as -_._---._._.------.-•----_._._._._.._...___._.._.__-- <br />4.5 -.---._._.---------._-.-•--•-- -•-••------•---.... <br />~ q ._.---...-•-•----•-•-•-•--•-•--_ .-._._.--.._._.--_.... <br />O ., <br />_ ~" <br />-. <br />. ,. <br />2 ' <br />1 <br />AP/MAY JUNE JULY AUG SEPT <br />MONTH <br />-~- WE AVG HOURlfRI -w- YVD AVG HOUfLTRI $• WE AVG COMPLET <br />-•a-• lVE AVG INCOMPL -~- VJD AVG COMPLET -~- WD AVG INCOMPL <br />Figure 3. Estimated average hours, and average complete and <br />incomplete trip lengths for anglers surveyed on the <br />Green River, 1989. <br />Composition of catch <br />The majority of fish caught in both rivers were non-native, <br />(98.10 on the Green River and 99.6% on the Colorado River). Most <br />often caught were channel catfish (Ictalurus punctatus), which <br />comprised 80.5% of the Green River catch and 98.5% of the <br />Colorado River catch (Figure 4). Catch rates of each species of <br />fish and the number of each species harvested or released are <br />presented in Table 4 for the Colorado River and Table 5 for the <br />Green River. Actual total catch and harvest were calculated from <br />the actual hours fished, but could not be extrapolated to total <br />potential harvest, since total potential angler hours could not <br />be estimated. <br />