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0 <br />4 RM 124.1 RM 121.5 <br />. 0.4 <br /> N=894 N=7S9 <br />0.3 .._ ...._...._..___--__..._._._._.. ._..._.--- 0.3 - _.........._....._.._....._...._....__....._ <br />ye0.2 -. ..._._._._...._._. ...._....~......... yt0.2 _ -.____._._._......_.__ .............._...._.__.. <br />0.1 •__-- - 0.1 ._.._~...... <br />0 0 <br /> Ne Rr a~ a ~ ~+ ea a ws sc cs os we ~ Rr ar ca a ex a a wa ec ca es sMe <br /> <br />0 <br />4 RM 120.0 ALL SITES <br />. 0.4 <br /> N=633 11~2Zd6 <br />0.3 .~..._...._._._ 0.3 .._.._...._. ._~ <br />~t0.2 -- --- ~R0.2 _...._..___ .._._ -- <br />0.1 -.___- 0.1 ._...._ <br />0 ~ <br />rtr . c++ cs w sM cP a ws . ec cs es sYS 0 <br />~ Rr ai ca . Fx ex ca a ws ec cs es sne <br />Figure 13. Species composition offish collected with trammel nets in Westwater Carryon <br />at three sampling sites; 1992 -1996 combined. See Appendix Table 1 for species abbreviations. <br />Humpback chub trammel net catch rates are graphically presented for each trip and each sampling <br />location in Figure 14. The trend in humpback chub catch rates seemed erratic throughout the <br />study but basically fluctuated around the following site means: RM 124.1 = .40 ; RM 121.5 = <br />.47 ;and RM 120.0 = .32. A regression analysis of these CPES against the sampling date (the <br />1992 b and d trips were used in the analysis) indicated a positive trend at RM 124.1 (R2 = .5726; <br />x.08) and a slight dow~rvvard trend at the other sites: RM 121. S (RZ = -.125; x.74) and ItM ~ -~ <br />120.0 (R2 = -.196; x.587). Taking into account the probability values, densities of humpback <br />chub increased at Miner's Cabin and changed very little elsewhere throughout the course of this <br />five year study. In Figure 14 ,the July, 1994 and 1996, CPEs are circled to call attention to <br />what the researchers recall as good catches of humpback chub. In July, 1994, the humpback <br />DRAFT <br />32 <br />