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<br />.. Monitor for successful bonytail reproduction. As with monitoring of juvenile and adult <br />fish, existing monitoring programs can be used to assess reproductive success. The most <br />likely candidate is the annual young-of-year ISMP sampling in the Colorado and Green <br />rivers. Additional light trapping or larval drift sampling during suspected spawning <br />periods may also be needed. <br /> <br />.. If there is further investigation of flow training. it should occur at Wahweap State fish <br />Hatchery. Although a few specific physiological responses have been examined in a <br />laboratory setting, it is possible that other factors such as feeding behavior or habitat <br />selection patterns may also play prominent roles in improving post-stocking survivorship. <br />Bonytail flow trained in situ at the hatchery could be released and followed through our <br />monitoring. <br /> <br />UNCERTAINTIES <br /> <br />@ What are the long and short-term survival rates of stocked bonytail? <br />@ What is the relationship between size and survivorship in the wild? <br />@ Do reaches in which fish are stocked contain adequate habitat for spawning and rearing of <br />independent sub-populations? <br />@ Can flow training provide measurable changes in condition and survivorship? <br /> <br />20 <br />