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1 <br /> <br /> <br />' ? Downstream 111111ME <br />G I C <br />' 1 ?--Five Files- H i D <br /> <br />Figure 2. Schematic representing sampling :protocol for the YOY Colorado squawfish <br />portion of the Interagency Standardized Monitoring Program (shaded areas represent <br />seine hauls). Each monitoring reach was divided into five-mile subreaches. <br />' Investigators began at the upstream portion of the monitoring reach and sampled the first <br />two backwaters meeting ISMP criteria that they encountered. Each backwater was <br />t sampled with two seine hauls. No additional backwaters were seined until the next five- <br />mile subreach. Samples were not taken unless a backwater meeting the criteria was <br />encountered. <br />' Table 2. Calculations used to determine Geometric-mean CPE and Total CPE for ten-mile <br />intervals within the ISMP monitoring reaches. (CS;=total number of Colorado <br />squawfish collected in ith seine haul; area;=total area seined (m2) in ith seine haul) <br />Geometric-Mean CPE <br />Step 1. Log ((CSA+CSB/areaA+areaB)+l)=CPEAB <br />Log ((CSC+CSD/areac+areaD)+1)=CPEcD <br />' Log ((CSE+CSF/areaE+areap)+1)=CPFw <br />Log ((CSa+CSH/areas+areaH)+1)=CPEGH <br />' Step 2. Geometric-Mean CPE = (Antilog((CPEAB+CPE,cD+CP13u+CPEaH)/n)-1) <br />Total CPE <br />I CS +CS +CS + S + + C +C <br />( A 8 C C p CSE CSg+ SC, SH) <br />Total CPE = ----------------------------------------------------------------------- <br />' (areaA+areaB+areas+areaD+areaE+area,+areaD+areaH) <br /> <br /> <br />7