population estimates for humpback chub - Upper Colorado River ...

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LIST OF TABLES Table 1. Population estimate for humpback chub adults in Westwater Canyon 1998–2000..............................................................................................................17 Table 2. Total humpback chub captures in Westwater Canyon 1998–2000........................17 Table 3. Population estimate for roundtail chub adults in Westwater Canyon 1998–2000..............................................................................................................18 Table 4. Total roundtail chub captures in Westwater Canyon 1998–2000..........................18 Appendix I. Summary of population estimates generated within Program CAPTURE for adult humpback chub in Westwater Canyon, 1998–2000 .....................................29 Appendix II. Summary of population estimates generated within Program CAPTURE for adult roundtail chub in Westwater Canyon, 1998–2000........................................30 vi
LIST OF FIGURES Figure 1. Figure 2. Westwater Canyon adult humpback chub population estimates for 1998–2000..............................................................................................................19 Westwater Canyon humpback chub trammel net catch per unit effort by pass for 1998–2000................................................................................................19 Figure 3. Westwater Canyon humpback chub length-frequency histograms for 1998– 2000........................................................................................................................20 Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Westwater Canyon humpback chub annual incremental growth for individuals between 1998–1999 and 1999–2000, and among all years.................21 Westwater Canyon humpback chub catch per unit effort for samples collected using ISMP protocol from 1988 to 2000................................................21 Westwater Canyon humpback chub ISMP length-frequency histograms for 1988–2000........................................................................................................22 Westwater Canyon adult roundtail chub population estimates for 1998–2000..............................................................................................................24 Westwater Canyon roundtail chub trammel net catch per unit effort by pass for 1998–2000................................................................................................24 Figure 9. Westwater Canyon roundtail chub length-frequency histograms for 1998– 2000........................................................................................................................25 Figure 10. Figure 11. Figure 12. Westwater Canyon roundtail chub annual incremental growth for individuals between 1998–1999 and 1999–2000, and among all years.................26 Westwater Canyon roundtail chub catch per unit effort for samples collected using ISMP protocol from 1988 to 2000................................................26 Westwater Canyon roundtail chub ISMP length-frequency histograms for 1988–2000........................................................................................................27 vii
Page 1 and 2: State of Utah DEPARTMENT OF NATURAL
Page 3 and 4: ACKNOWLEDGEMENTS We would like to a
Page 5: TABLE OF CONTENTS (continued) DISCU
Page 9 and 10: EXECUTIVE SUMMARY Humpback chub (Gi
Page 11 and 12: to a much larger ongoing project en
Page 13 and 14: etween years using the same analyse
Page 15 and 16: Growth Mean annual growth rates of
Page 17 and 18: Length-Frequency The length-frequen
Page 19 and 20: population trends and population dy
Page 21 and 22: Comparison with ISMP The decreasing
Page 23 and 24: RECOMMENDATIONS • Increase tramme
Page 25 and 26: Nesler, T.P. 2000. Recovery of the
Page 27 and 28: Table 3. Population estimate (N) fo
Page 29 and 30: Westwater Canyon Humpback Chub Leng
Page 31 and 32: Humpback Chub ISMP Length-Frequency
Page 33 and 34: Westwater Canyon Adult Roundtail Ch
Page 35 and 36: Westwater Canyon Roundtail Chub Ann
Page 37 and 38: Roundtail Chub ISMP Length-Frequenc
Page 39 and 40: Appendix II. Summary of population
Page 41 and 42: Appendix III Table 2. Daily instant
Page 43 and 44: Appendix III Table 5. Mean daily te
Page 45: Appendix III Table 8. Mean daily te

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