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.~ <br />squawfish (Tyus et al 1982a). The same variety of gear was used, including <br />seines, trammel nets, and electrofishing. Although some gear types were more <br />efficient in certain areas (electrofishing for adults is considered more <br />effective in the Colorado and Yampa Rivers than in the very turbid, higher <br />conductivity waters of the Green), these data were considered the most <br />representative available for basin wide comparison for the years 1979-1981. <br />Table 1. Comparison of Colorado squawfish catch data, Green and Upper Main- <br />stem Colorado river basins. <br />' Catch of Colorado squawfish <br />Author River Miles Years Young Juveniles Adults <br />1 Green 22-319 2 5,422 403 185 <br />2 Green 319-345 1 7 0 16 <br />3 White 0-150 1 0 19 39 <br />2 Yampa 0-124 1 0 0 73 . <br />4 Colorado -48-241 2 337 71 105 <br /> G 12 ~ C~~ <br />5 unnison 0-42 2 ~ 0 <br />5 Dolores 0-68 1 0 0 0 <br />1 Tyus et al 1982b ~ ~ Irv ~2r ~ N"~ 82 <br />2 Miller et al 1982a <br />13 <br />