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<br />I <br /> <br />Table 16. Approximate diel abundance ratiosa for drift net-collected Colorado squawfish <br />larvae, Yampa and Green rivers, Colorado, 1983-1984. <br /> <br />Year <br /> <br />Site <br /> <br />1983 <br /> <br />Box Elder (Yampa) <br /> <br />1984 <br /> <br />Box Elder (Yampa) <br /> <br />1984 <br /> <br />State Line (Green) <br /> <br />Developmental <br />phase <br /> <br />Sunrise:Noon:Sunset:Midnight <br /> <br />Day:Night <br /> <br />Peak proto1arvae <br />Mean total proto. <br />Peak mesolarvae <br />Mean total meso. <br />Peak total <br />Mean Total <br />Peak protolarvae <br />Mean total proto. <br />Peak total <br />Mean total <br />Mean total proto. <br />Peak total <br />Mean total <br /> <br />1:11:2:9 <br />1: 8:4:7 <br />9: 1:3:9 <br />3: 1:1:3 <br />2: 2:1:3 <br />1: 1:1:2 <br />13: 3:3:1 <br />5: 3:2:1 <br />13: 3:3:1 <br />4: 2:1:1 <br />5: 6:2:1 <br />2: 2:1:1 <br />5: 5:1:1 <br /> <br />1:1 <br />1:1 <br /> <br />1:1 <br />1:1 <br /> <br />1:1 <br />1:1 <br /> <br />4:1 <br />3:1 <br /> <br />w <br />w <br /> <br />4:1 <br />3:1 <br /> <br />5:1 <br /> <br />2:1 <br />5:1 <br /> <br />aDerived from densities (numbers per 1000 m3); mean catch of three nets set for 1-2 hrs at <br />each sampling time (day = combined sunrise and noon samples, and night = combined sunset and <br />midnight samples). <br />