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t I <br />FirL. _ni _ ,h th` ('•. ??`r1v _-A +kQ !`..1...__.1- nt 1. ._ 4- <br />• +?? ?(+?-?- -:• . ... u ..,,.,, ?,i . 111iU bail: i,V iU7 UVQ iNi VGi W!-%,YYCG11 Of (AINl UU fit, i, lUn, <br />Colorado and Moab, Utah. Of prime importance were four species of fish: <br />1. Colorado squawfish: Ptychocheilus lucius, <br />2. Humpback chub: Gila cypha, <br />3. Bonytai_l chub: Gila elegans, and the <br />4. Razorback sucker: Xyrauchen texanus. <br />All four species are classified as endangered or threatened by the state of <br />Colorado and protected status by the state of Utah. The Federal Fish and <br />Wildlife Service lists the Colorado squawfish and the Humpback chub as <br />endangered species. Hearings are in progress to list the Bonytail chub and <br />L <br />L.LHe _ n_ Rai- L i_u%n,l.n _ a_. -s e nndangpel ed vnrt nom. rc r2 !. uy the ?:.n Federal 7Government. <br />u%.Ker u Field work was initiated by N.F.R.I. in February of 1976 and was completed <br />in November of 1976. The study was divided into two segments according to <br />area of work. The first segment dealt with data collection and findings in <br />the Gunnison River. The preliminary report dated September, 1976, presented <br />the majority of these data. This, the second and final report, includes <br />that data presented in the first report and also updates and finalizes the <br />Gunnison River segment. In addition, the main Colorado River segment is <br />presented in its entirety. <br />In order to implement the fish sampling portion of the study, N.F.R.I. <br />0 twined fish collecting permits from the appropriate agencies. To collect <br />fish in Colorado, a State of Colorado Scientific Collectors Permit was obtained. <br />To collect federally classified endangered fish species, a special Federal <br />Collecting Permit from the U.S. Fish and Wildlife Service was obtained. To <br />collect fish from the state of Utah, a special Utah Collecting Permit was <br />obtained. Copies of these permits showing sampling restrictions are attached <br />as Appendix A to this report. <br />(2)