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<br />Table 4. <br /> <br />Survivorship curves used and estimated stocking numbers/age group for Colorado River endangered fishes for a 50- <br />mile river reach with respect to multi-age group abundance objectives for each species, <br /> <br />I .......,.',.'""..,'.......'" .1 <br />::::.\::::::::::::\,::::::::}:)\'::'::::::::'?\::::.\::':':. <br />-':-::"::::-:-:-:-:::-:-:-:-:-:-:::-,-":::-::-::-:,':'.-,-----'-' <br />/ '..'.'.... .................. ......./) <br /> <br />Year <br /> <br />8 <br />7 <br />6 <br />5 <br /> <br />4 <br />3 <br />2 <br />1 <br />o <br /> <br />RAZORBACK SUCKER <br /> <br />BONYTAIL <br /> <br />Survival <br />rate <br /> <br />Numbers of fish <br />@ 475/mi <br /> <br />Avg, size <br />(in - mm) <br /> <br />Numbers of fish <br />@ 400/mi <br /> <br />COLORADO SQUA WFISH <br /> <br />Avg. size <br />(in - mm) <br /> <br />Numbers of fish <br />@ 20/mi <br /> <br />2603 <br /> <br />3303 <br /> <br />4103 <br /> <br />Avg, size <br />(in - mm) <br /> <br />0.8 <br />0.8 <br />0.8 <br />0.8 <br />0,8 <br />0,8 <br />0.5 <br />0.3 <br />0.3 <br /> <br />6,3001 <br />7,8001 <br />9,8001 <br />12,300 <br />15,300 <br />30,600 <br />102,100 <br />340,300 <br /> <br />17 - 432 <br />16 - 406 <br />14 - 356 <br />12 - 305 <br />8 - 203 <br /> <br />5,2002 <br />6,6002 <br />8,2002 <br />10,250 <br />12,800 <br />25,600 <br />85,400 <br /> <br />o <br />c:::> <br />N <br />00 <br />..... <br />c:Jl <br /> <br />17 - 432 <br />15 - 381 <br />12 - 305 <br />10 - 254 <br />6 - 152 <br />2 - 51 <br /> <br />14 - 356 <br />12 - 305 <br />8 - 203 <br />4 - 102 <br /> <br />510 <br />640 <br />800 <br /> <br />1,600 <br />5,340 <br />17,800 <br /> <br />ISum of age groups 5-7 = 23,900; or approximately 475 razorback sucker/mile/50 mile reach, <br />2Sum of age groups 4-6 = 20,000; or approximately 400 bony tail/mile/50 mile reach, <br />3Sum of age groups 6-8 = 1,000; or approximately 20 Colorado squawfish/mile/50 mile reach. <br /> <br />DRAFT - June 4, 1997 <br /> <br />21 <br />