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<br /> 31 <br />Table 14. Diel densities of drift-net-collected Colorado squawfish larvae <br /> (numbers per 1,000 m3)a in the Yampa River, Colorado, Box <br /> Elder site (river km 3.1), 1984. Blank spaces mean no catch. <br /> Size ranges for developmental phases are cumulative for the <br /> entire sampling season. <br />Date Sunrise Noon Sunset Midnight Day Night <br />Protolarvae (7.2-9.2 mm TL) <br />7/15-16 0.0 0.4 0.5 0.2 <br />7/18-19 0.4, 0.5 0.2 0.3 <br />7/27-28 1.3 0.9 0.7 0.5 <br />7/28-29 13.9 3.1 3.1 1.1 8.5 2.2 <br />8/02-03 0.8 0.4 0.6 <br />8/03-04 0.4 0.4 0.2 0.2 <br />8/06-07 3.9 4.9 0.4 4.4 0.2 <br />8/07-08 2.8 1.4 0.5 1.4 1.0 <br />MEAN TOTAL 2.7 1.3 0.8 0.5 4.0 1.3 <br />Mesolarvae (8.4-8.9 mm TL) <br />7/18-19 1.0 1.0 0.5 0.5 <br />8/07-08 0.5 0.5 0.3 0.3 <br />Combined larvae <br />7/15-16 0.9 0.4 0.5 0.2 <br />7/18-19 1.0 0.4 1.5 0.7 0.8 <br />7/27-28 1.3 0.9 0.7 0.5 <br />7/28-29 13.0 3.1 3.1 1.1 9.0 2.1 <br />8/02-03 0.8 0.4 0.6 <br />8/03-04 0.4 0.4 0.2 0.2 <br />8/06-07 3.9 4.9 0.4 4.4 0.2 <br />8/07-08 2.8 0.5 1.4 1.0 1.7 1.2 <br />MEAN TOTAL 2.8 1.3 0.8 0.7 4.1 1.5 <br /> <br />aMean catch of three nets set for 1-2 hrs at each sampling time; day = <br />combined sunrise and noon samples, and night = combined sunset and <br />midnight samples <br />