Laserfiche WebLink
<br />Required <br />Populationsl <br />complexes <br /> <br />Black Rocks! <br />Westwater <br />Canvon <br /> <br />Colorado River <br /> <br />Grand Canyon! <br />little Colorado <br />River <br /> <br />Colorado River <br /> <br />Yampa!Split <br />Mtn./Whirlpool <br />Canyons <br /> <br />Green River <br /> <br />Cataract Canvon <br /> <br />Colorado River <br /> <br />Desolation! <br />Grav Canyons <br /> <br />Green River <br /> <br /> <br />Abundance <br />3 of 5 populations <br /> <br />· 2,500 adult fish <br />minimum <br />· >175 mm <br />· lower estimate <br />of 95% C.!. for <br />each annual <br />estimate ~1,250 <br /> <br />Abundance <br />trend <br /> <br />Regression slope of 5 <br />estimates spanning last <br />8 years ~O at p~0.1 0 <br /> <br />And <br /> <br />Regression slope not a <br />progressive decline <br />over 5 estimates <br />spanning 8 years <br /> <br />Annual natural recruitment per <br />river, 3-yr rollina average <br /> <br />Black Rocks: <br /> <br />~15% @ 240 mm <br /> <br />Adult population length frequency <br />distribution, 3-yr rolling average <br />Size cateaorv (mm) <br />Black Rocks ~240: 10-20% <br />241-340: 50-90% <br />~341 1-10% <br />Westwater ~220: 15-25% <br />221-320: 65-75% <br />>321 5-15% <br />Size cateaorv (mm) <br />LC-Grd Canyon: ~200: 5-30% <br />201-340: 30-40% <br />~341 25-45% <br /> <br />Yampa: <br /> <br />Size cateaorv (mm) <br />~240: 10-20% <br />201-340: 50-90% <br />~341 1-10% <br /> <br />Westwater: <br /> <br />~20% @ 220 mm <br /> <br />Cataract: <br /> <br />Size cateaorv (mm) <br />~240: 10-20% <br />201-340: 50-90% <br />~341 1-10% <br /> <br />LC-Grd Canyon: ~20% @ 150 mm <br /> <br />Yampa: <br /> <br />~15% @ 240 mm <br /> <br />Deso-Gray: <br /> <br />Size cateaorv (mm) <br />~240: 10-20% <br />241-340: 50-90% <br />~341 1-10% <br /> <br />Cataract: <br /> <br />~15% @240mm <br /> <br />--~-~-~--~~~~-~~~~- <br /> <br />Deso-Gray: <br /> <br />~15% @240 mm <br /> <br />32 <br />