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<br />Results <br />j Parameter Estimates <br />To adjust the daily metabolism for increased energy loss due to activity, 29 pike implanted with <br />radio transmitters were monitored to estimate movement d amics. Large-scale movement <br />Yn <br />' ranged from 0.2 to 2.6 miles per day for the 29 radio-tagged pike. The mean movement per day <br />was 0,56 miles (0.67 S.D.). Over the course of the study, the maximum movement was 120 <br />miles. Overall, there was a net upstream movement of 4.9 miles over the year-long study. <br />Daily movement budgets were also calculated for five fish over four separate days (one day for <br />each of the summer months). These data suggest that northern pike spent approximately 52% of <br />their time in the main river channel in relatively deep water. During the tight, the fish moved to <br />the upstream edges of sandbars and became basically motionless. These areas had very low mean <br />velocities (0.01 m/s). The velocity in these areas was comprised of recirculating currents with <br />little or no net downstream movement. During the 24 observation days, 11% of the fish showed <br />no movement during the day and 26% did not move during the night. The maximum moved over <br />a I-h period was 225 m. On average, pike moved 43.7 m/h during the day (56.6 S.D.) and 5.9 <br />m/h d rin h ni h 8 4 D <br />u g t e g t (2 S. .). <br />Temperatures were measured at least weekly throughout the year in habitats where pike were <br />1 <br />observed. Mean daytime temperatures were 22.5, 18, 8, and 12 °C for the summer, autumn, <br />' winter, and spring respectively. Mean nighttime temperatures were 14.1, 12.2, 4.6, and 7.7°C for <br />the four seasons. <br />9 <br />