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<br />Temperature and dissolved oxygen readings were periodically recorded in the <br />~ late summer and during the winter through the ice. These readings were recorded <br />during the 1999 - 2000 winter and summer of 2000. Water quality readings were <br /> <br />measured with a Hydrolab O water quality monitoring instrument. <br />Monitoring movement to the river <br />To monitor razorback sucker movement from the sites, traps were set in levee <br />~ breaches at each site prior to connection. There was only one levee breach to monitor <br />at The Stirrup and Baeser Bend. However, Above Brennan had multiple breaches. <br />The traps to capture fish were set in the downstream breach. Attempts were made to <br />~ prevent fish movement from the site through the other four breach locations by setting <br />block nets. However, this did not work well because high water flows eroded the <br />substrate under the nets and created holes that fish could pass through. <br />Traps were set at all three sites in 1999 and 2000. Above Brennan was the only <br />site sampled in 2001. During 1999, the traps were constructed from 6 mm mesh plastic <br />~ netting and 2.5 cm diameter plastic tubing. They consisted of two side leads and a <br />chamber with a single funnel (Figure 5). In 2000, these plastic mesh traps were <br />replaced with specially designed fyke nets that were 19 mm mesh, with three 1.2 m x <br />~ 1.5 m rectangular frames, three hoops and one funnel (Figure 6). The funnel opening <br />was positioned at the bottom of the net for shallow water fishing. Both trap types were <br />placed in lowest point of the levee breaches (parallel to the cut), with leads extending <br />t <br />out to the right and left outer banks of the cuts. One trap was set to catch incoming fish <br />and the other to catch outgoing fish. Traps were checked daily during the river- <br />~ floodplain connection period. All captured razorback sucker were weighed, measured <br />9 <br /> <br />