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<br />Table 1. Estimated survival and growth of captive-reared razorback sucker <br />at the end of each growing season. II <br /> <br />1 <br />2 <br />3 <br />4 <br />5 <br /> <br />0.33 'f.1 <br />0.3 <br />0.5 <br />0.8 <br />0.8 <br /> <br />Estimated mean total lenqth <br />(mm) (inches) <br />10 0.5 <br />100-200 4-8 <br />300 12 <br />350 14 <br />400 16 <br />425 17 'J../ <br /> <br />Growing Estimated survival rate <br />season (%) <br /> <br />Larvae <br /> <br />II Fish would be reared in predator-free ponds until they reach 300 mm (12 <br />inches) in mean total length and then stocked into Upper Colorado River <br />Basin waters. Razorback suckers mature when they reach a length of 425 mm <br />(I7 inches) in total length. <br /> <br />'f.1 Survival of wild razorback sucker larvae for the first year of life from <br />Mueller (1995). The other survival rates are estimates that were accepted <br />by the Biology Committee. <br /> <br />~/ Razorback suckers generally mature when they are about 425 mm or 17 inches <br />in total length. <br /> <br />10 <br />