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23 <br />Spawning Observations <br />On July 31, at 2020 hours (hrs), contact was made with radiotagged <br />fish number 4 at river km 26.4 (mile 16.4) in a chute channel. The fish <br />was monitored throughout the night and showed local movement of 27-46 m <br />(30-50 yds.) within the chute channel. On August 1, at 0945 hrs., fish <br />number 4 was located in the chute channel "run" habitat. During the <br />next 4 hrs, the fish was observed by radiotelemetry to exhibit a large <br />range of movement. The fish moved first to the base of the upper riffle <br />along the eddy interface and then moved abruptly down the channel "run" <br />about 46 m (50 yds.). This movement pattern was observed several times. <br />Most movement occurred between 1030 and 1200 hrs. The fish frequently <br />moved into lower-velocity eddy and shoreline habitats between its abrupt <br />movements in the channel. The fish was not observed moving into the <br />shallow riffle. Approximately one week later, on August 6, radiotagged <br />fish number 5 was located in the same chute channel at river km 26.4 and <br />exhibited a behavioral pattern very similar to that of fish number 4. <br />Spawning Habitat <br />The braided reach between river km 26.7-26.1 (mile 16.6-16.2) <br />offers diverse riffle/pool habitat. The river reach above, at river km <br />26.7 to 26.4 (mile 16.6-16.4), is characterized by a long, low-velocity <br />pool with sand substrate giving way to rubble gravel as it approaches <br />the braided channel. There were three secondary channels at river km <br />26.4 (Fig. 16). The chute channel on river right was unique from the <br />other side channels?in that a deep, high-velocity channel had been cut <br />into the riffle's far right side. The riffle was 0.3 to about 0.6 m <br />(1-2 ft.) deep, and the cut channel was estimated to be more than 1 m (3 <br />ft.) deep. Below the channel, a small rapid was formed, which gave way