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average depths. This is because it calculates and includes the area of individual cells in <br />the cross sections that are at or exceed those depths used in the probability function. <br />The inflection point of the squawfish daytime habitat versus flow is identified to <br />be at 150 cfs for Strata 6, Strata 8, and the combined data (Figure 5). The 150 cfs <br />inflection point is similar to those identified for pools using average depth and supports <br />those flows as good indicators of the availability of habitat used by adult Colorado <br />squawfish during the day. At flows over 125 cfs Strata 8 had more WUA, but at flows <br />below 80 cfs Strata 6 was greater. Squawfish daytime or resting WUA was highest <br />(30,000 sq. ft.) at 500 cfs. About half the pool habitat area was still available at 80 cfs. <br />At flow of less than 80 cfs pool habitat rapidly decreased. <br />35,000 <br />d <br />d <br />U; 25,000 <br />0 <br />0 <br />L 20,000 <br />a� <br />CL <br />15,000 <br />57, <br />10,000 <br />L <br />Q <br />5,000 <br />0 <br />W - sash d Total Strata 8 <br />i -�.. - - - -•- - - -- <br />I <br />%• I I I I I I I I I <br />• <br />0 50 100 150 200 250 300 350 400 450 500 <br />Modeled Flow (cfs) <br />Figure 5. Colorado Squawfish Daytime Habitat Flow Relationship for Strata 6 and <br />8. <br />B. Nighttime Habitat (Foraging g ctivity <br />34 <br />