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Razorback sucker larvae grew to a mean length of 54 mm from the time they were <br />introduced into the enclosures on 26 Apri12004 to the time they were removed from the <br />wetland on 23 July 2004. Total length ranged from 25 to 92 mm and had an average <br />growth rate of 0.6 mm/day. Growth rates ranged from O.Smm/day in an enclosure <br />stocked at 40,000 larvae/acre to 0.7mm/day in and enclosure stocked at 4001arvae/acre. <br />Approximately 1,000 young-of-the-year razorback sucker were transferred to The Stirrup <br />wetland. <br />These survival estimates are also conservative, based on the likelihood of <br />escapement of larval razorback sucker and bonytail from the enclosures. Escapement of <br />bonytail was detected by the capture of 31 bonytail in an enclosure adjacent to the <br />enclosures where they were stocked. Bonytail were not captured in any other enclosure. <br />Escapement was also evaluated by setting eight fyke nets (0.32mm mesh) outside and on <br />the perimeter of the enclosures for two nights in 2004. Nonnative species were all that <br />was captured with this effort. <br />Bonytail Survival and Growth <br />Bonytail larvae were introduced on 28 April into two enclosures sympatrically <br />with larval razorback sucker at the same density of 8,000 larvae/acre. The estimated <br />survival of bonytail in these two enclosures was 15.6 and 16.5 % (Table 8). Razorback <br />sucker larvae in these two enclosures had an estimated survival of 34.2 and 21.6 %. <br />Surviving bonytail ranged from 21 to 76 mm total length with a mean length of 32.4 mm <br />and average growth rate of 0.4 mm/day. An additiona131 bonytail that had escaped from <br />one or both of the two enclosures where they were stocked were collected in one of the <br />19 <br />