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<br />Table 11. Drift net catches of Colorado squawfish larvae at Box Elder (river km 3.1), Yampa River, <br />Colorado, 1984. <br /> <br />Date of Water Number of Size (nun TL) Estimated age Estimated <br />larval temperature larvae of larvae (days) of Colorado squawfish <br />collections (C)a collected collected larvae collectedb spawning datesb <br />7/17 23.0 3 8.2-9.2 8-12 7/05-09 <br />7/18 24.0 1 8.0 7 7/12 <br />7/19 24.8 5 8.1-9.5 8-13 7/07-12 <br />7/27 23.5 5 7.8-8.4 6-9 7/19-22 <br />7/28 23.8 12 7.8-8.2 6-8 7/21-23 <br />7/29 23.0 26 7.5-8.5 4-9 7/21-26 <br />8/02 24.0 2 8.4-8.5 9 7/25 <br />8/03 22.3 1 8.1 8 7/27 <br />8/04 23.0 2 8.0-8.2 7-8 7/28-29 N <br />00 <br />8/06 22.3 11 7.5-8.5 4-9 7/27-8/03 <br />8/07 22.3 13 7.9-8.8 6-11 7/28-8/02 <br />8/08 22.0 8 7.2-8.9 3-11 7/29-8/06 <br />TOTAL 89 7.2-9.5 3-13 7/05-8/06 <br />aMean value for four 2-hr periods <br />bDerived from back-calculated age estimates of larvae <br />