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List of Tables continued… Table Page 12. Diet summary by season, reservoir strata, and length group for saugers caught in gill nets from Lewis and Clark Lake during 2003. N is the number of stomachs examined. ……………19 13. Diet summary by season, reservoir strata, and length group for walleyes caught in gill nets from Lewis and Clark Lake during 2003. N is the number of stomachs examined. …………….26 14. Percent diet overlap (Shoener index; Schoener 1971) by season between sauger and walleye at Lewis and Clark Lake during 2003. ………………………………………38 LIST OF FIGURES Figure Page 1. Lewis and Clark Lake study area showing the upper sampling zone (river kilometer 1318 to 1329), the lower sampling zone (river kilometer 1305 to 1318), and the unchannelized Missouri River upstream of the reservoir. …………………………………………3 LIST OF APPENDICES Appendix Page 1. Universal transverse mercator coordinates for gill net locations in Lewis and Clark Lake during 2002. ………………………………………………………………………….42 2. Universal transverse mercator coordinates for gill net locations in Lewis and Clark Lake during 2003. ………………………………………………………………………………...43 3. Analysis of variance results for sauger catch per unit effort data from Lewis and Clark Lake gill nets during 2002 and 2003. Highlighted numbers are significant. ………………44 4. Results of pairwise comparisons, within a season or zone, for two-way interactions for sauger catch per unit effort data from gill net catches in Lewis and Clark Lake during 2002 and 2003. Highlighted numbers are significant.……………………………………44 5. Analysis of variance results for walleye catch per unit effort data from Lewis and Clark Lake gill nets during 2002 and 2003. Highlighted numbers are significant. ………………44 6. Results of pairwise comparisons within each season, zone, and location to examine the season*zone*location interaction for walleye gill net catch per unit effort data from Lewis and Clark Lake during 2002 and 2003. Highlighted numbers are significant.……………………………………………………………...45 7. Analysis of variance results for sauger mean total lengths from gill net catches in Lewis and Clark Lake during 2002 and 2003. Highlighted numbers are significant. ……………45 vii
List of Appendix continued… Appendix Page 8. Results of pairwise comparisons within each season, zone, and location to examine the season*zone*location interaction for sauger mean total length . Highlighted numbers are significant.……………………………………………………………...46 9. Analysis of variance results for walleye mean total lengths in gill nets from Lewis and Clark Lake during 2002 and 2003. Highlighted numbers are significant ……………………46 10. Results of pairwise comparisons within each season to examine the season*zone*location interaction for walleye mean total length . Highlighted numbers are significant.……………………………………………………………..47 11. Analysis of variance results for sauger mean relative weight values from gill net catches in Lewis and Clark Lake during 2002 and 2003. Highlighted numbers are significant. ………………………………………………………………………………………..47 12. Analysis of variance results for walleye mean relative weight values from gill net catches in Lewis and Clark Lake during 2002 and 2003. Highlighted numbers are significant. ………………………………………………………………………………………..48 13. Results of pairwise comparisons, within a season or zone, for two-way interactions for walleye mean relative weight values from gill net catches in Lewis and Clark Lake during 2002 and 2003. Group 1 is stock-quality length, group 2 is quality- preferred length, and group 3 is preferred-length. Highlighted numbers are significant. ……….48 14. Lewis and Clark Lake abiotic conditions during sampling. Conductivity values are corrected to 25 0 C. ………………………………………………………………………………..49 viii
Page 1 and 2: SEASONAL DISTRIBUTION, MOVEMENT, AN
Page 3 and 4: PREFACE Information summarized in t
Page 5 and 6: Walleyes and saugers collected duri
Page 7: LIST OF TABLES Table Page 1. Summar
Page 11 and 12: upstream from Lewis and Clark Lake
Page 13 and 14: DATA COLLECTION FROM SAMPLED FISHES
Page 15 and 16: Table 1. Summary of tagging and rec
Page 17 and 18: Over 48% of the tagged walleyes wer
Page 19 and 20: no difference in distribution durin
Page 21 and 22: Table 8. Mean relative weights (sta
Page 23 and 24: Stock Structure Indices Sauger PSD
Page 25 and 26: Table 11. Proportional stock densit
Page 27 and 28: spring through autumn. Freshwater d
Page 29 and 30: Table 12 continued… Notropis spp.
Page 31 and 32: Table 12 continued… Summer Upper-
Page 33 and 34: Table 12 continued… Autumn Upper-
Page 35 and 36: Table 12 continued… Aplodinotus g
Page 37 and 38: Table 13 continued. Unidentified in
Page 39 and 40: Table 13 continued. Isopoda 2.3 0.1
Page 41 and 42: Table 13 continued. 250-379 11 81.8
Page 43 and 44: Table 13 continued. Hexagenia sp. 3
Page 45 and 46: Table 13 continued. Dorosoma cepedi
Page 47 and 48: Table 14. Percent diet overlap (Sho
Page 49 and 50: Isaak, L.C., R.M. Neumann, and D.W.
Page 51 and 52: APPENDICES Appendix 1. Universal tr
Page 53 and 54: Appendix 3. Analysis of variance re
Page 55 and 56: Appendix 8. Results of pairwise com
Page 57 and 58: Appendix 12. Analysis of variance r

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