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As the number of hatchery reared pallid sturgeon in the environment increases <br />researchers will have better information on how long these individuals can live (as long as they <br />retain their tags). Other techniques for aging are being investigated. <br />Growth: <br />Several studies have estimated growth rates from pallid sturgeon captured in the wild <br />(Carlander 1969; Kallemeyn 1983; Killgore et al. 2007b; Yerk and Baxter 2002). Growth rates of <br />pallid sturgeon have been documented in hatcheries (Bollig 1998; U.S. Fish and Wildlife Service <br />2007). The recapture of PIT-tagged individuals is providing data for following growth of stocked <br />fish in the wild (Peters and Parham 2008). <br />Condition: <br />The relationship between length and weight affords fishery biologists a measure of the <br />well-being of individuals and populations of fish. Early studies of pallid sturgeon condition was <br />from specimens captured during reservoir sampling along the Missouri River primarily in South <br />Dakota (Carlander 1969). Mare recent studies developed length-weight and relative weight (Wr) <br />equations (Keenlyne and Evenson 1993; Keenlyne and Maxwell 1992; Keenlyne and Maxwell <br />1993). In addition, the development of proportional stock density (PSD) and relative stock <br />density (RSD) criteria should enable more effective analysis of population statistics for pallid <br />sturgeon management (Shuman et al. 2006). <br />Table 6. References that discuss age, growth, or condition factors for pallid sturgeon by life stage <br />and study area. <br />Basin- RPMA RPMA RPMA RPMA RPMA RPMA Platte <br />Life Stage Ref ID wide 1 2 3 4 5 6 River