A Population Assessment of Lake Sturgeon in the Namakan River ...

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Table 3 provides a summary of the growth of lake sturgeon based on the mean total length and weight at age, while Figure 11 provides a summary of the mean total length at age for all fish sampled and sexes combined (7 to 61 years, n=349). A power growth equation (r 2 = .80) suggests rapid early growth is possible for younger sturgeon (
Table 3: Mean total length and mean round weight at age for lake sturgeon sampled in the Namakan River, 2006-08. Age (years) Total Length (mm) Round Weight (g) Number (#) Percent (%) 7 605 1250 1 0.3 11 753 2100 2 0.6 12 962 4500 1 0.3 13 1015 5500 3 0.9 14 1077 7175 6 1.7 15 1154 9625 4 1.1 16 1102 7960 15 4.3 17 1113 8931 16 4.6 18 1145 7963 4 1.1 19 1164 9997 17 4.9 20 1096 7988 13 3.7 21 1163 11096 25 7.2 22 1216 12134 19 5.4 23 1137 10045 22 6.3 24 1202 10877 20 5.7 25 1254 11918 11 3.2 26 1163 9603 15 4.3 27 1244 12986 18 5.2 28 1214 11547 17 4.9 29 1178 9944 16 4.6 30 1199 10425 6 1.7 31 1344 16000 12 3.4 32 1267 14307 15 5.0 33 1250 12092 19 5.4 34 1289 14775 10 2.9 35 1227 11786 7 2.0 36 1351 13107 7 2.0 37 1623 30300 2 0.6 38 1479 14883 3 0.9 39 1469 18233 3 0.9 40 1417 17988 4 1.1 41 1344 18283 3 0.9 42 1422 16938 4 1.1 43 1254 11600 1 0.3 44 1552 23300 2 0.6 45 1525 24975 2 0.6 47 1662 30800 1 0.3 50 1473 22600 2 0.6 61 1428 20450 1 0.3 Total - - 349 100.0 25
Page 1 and 2: A Population Assessment of Lake Stu
Page 3 and 4: Abstract List of Figures List of Ta
Page 5 and 6: LIST OF TABLES Table 1: Physical an
Page 7 and 8: MDNR, 1995). Previous population as
Page 9 and 10: change, the daily catch and possess
Page 11 and 12: m 3 /sec respectively. Time exceede
Page 13 and 14: Sturgeon were also captured during
Page 15 and 16: observed, and only one large sturge
Page 17 and 18: To evaluate size selectivity and vu
Page 19 and 20: GIRTH (mm) 900 800 700 600 500 400
Page 21 and 22: Percent (%) 30 25 20 15 10 5 0 500
Page 23: was from the 1985 year class with 2
Page 27 and 28: Table 4: Comparison of lake sturgeo
Page 29 and 30: (Kallemeyn et al., 2003). Recent bi
Page 31 and 32: Mosindy and Rusak (1991) also repor
Page 33 and 34: history parameters used in manageme
Page 35 and 36: ACKNOWLEDGEMENTS I would like to ac
Page 37 and 38: Galarowicz, T. 2003. Conservation a
Page 39 and 40: Secor, D.H. 2008. Influence of skip
Page 41 and 42: October, 2008 Mesh Size Effort # St

A Population Assessment of Lake Sturgeon in the Namakan River ...

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