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for two reasons: a. results of a very successful sampling effort with CPEs that will likely rival the <br />1989 catch rates, b. a population structure that indicates the increased catch rate is not due to <br />recent recruitment - the majority offish were adult sized (>200mmTL), i.e. sampling efficiency <br />must be factored into our interpretation of monitoring results. <br />GREEN RIVER: DESOLATION CAN. <br />CH CPE / RS CPE vs PEAK FLOW <br />0.1 <br />0.08 <br />0.06 <br />0.04 <br />0.02 <br />0 <br />10000 <br />15000 20000 25000 30000 <br />ANN. INST. PEAK FLOW (CFS):1992-1996 <br />~ CH/RS INDEX .~ CH CPE <br />Figure 5.- YOY Gila spp. annual catch rates (fish fmz) plotted against the corresponding <br />peak Bow at Green River, Ut; 1992-1996.. CH / RS index is the YOY chub CPE / RS CPE <br />offering an index of native :non-native relative density opn an annual basis. <br />1993 <br />. ~ <br />~~ <br />__.._ ~~_~.._...__. _........_. _~__.._._._.._. _._..___._.M......_~ <br />199 <br />1992 1996 1995 <br />DRAFT ~ 9 <br />