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<br />------------------- <br /> <br />Effort <br /> <br />-- Time and manpower constraints limited t.he number of passes in each <br />reach. <br /> <br />-- Because most adults occurred in the upper reach, more effort was placed <br />there to get best results. <br /> <br />-- A 6-8 week sampling window from mid-April to mid-June was available <br />during runoff and prior to spawning. <br /> <br />-- A 2-person crew covered 175 miles (282 km) of river: 3 times in upper <br />reach; 2 times in lower reach. <br /> <br />-- All large backwaters, flooded ponds and canyon mouths were netted. <br />Shorelines were electrofished in reaches where nettable habitats were <br />scarce. <br /> <br />--The goal was to capture as many pikeminnow as possible and cover all <br />areas so that all pikeminnow had some probability of being captured. <br />