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<br />Middle Green River 1991
<br />
<br />~
<br />
<br />
<br />0.31
<br />
<br />
<br />BESTGEN ET AL.
<br />
<br />Larvae
<br />(n = 404)
<br />
<br />J,
<br />.
<br />
<br />Summer
<br />juvenHes
<br />(n = 105)
<br />
<br />Autumn
<br />juveniles
<br />(n = 205)
<br />
<br />II3M
<br />juveniles
<br />(n = 205)
<br />
<br />112
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<br />Lower Green River 1991
<br />
<br />.~~..
<br />
<br />
<br />0.66
<br />
<br />Larvae
<br />(n =98)
<br />
<br />-. .
<br />
<br />J,
<br />
<br />Summer
<br />juveniles
<br />(n= 91)
<br />
<br />Autumn
<br />juveniles
<br />(n = 109)
<br />
<br />
<br />[BM
<br />juveniles
<br />(Ii = 109)
<br />
<br />1.21
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<br />Larvae
<br />(0 = 252)
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<br />Larvae
<br />(n= 179)
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<br />
<br />Summer
<br />juveniles
<br />(n = 124)
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<br />Aulumn
<br />Juveniles
<br />(n = 1241
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<br />25.0
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<br />
<br />Lower Green River 1992
<br />
<br />
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<br />O_~R
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<br />1.09
<br />
<br />0.73
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<br />
<br />Middle Green River 1992
<br />
<br />.1
<br />
<br />.dL
<br />.
<br />
<br />Summer
<br />juveniles
<br />(n = 1001
<br />
<br />
<br />Autumn
<br />juveniles
<br />(n = 217)
<br />
<br />O.RO
<br />
<br />
<br />IRM
<br />juveniles
<br />(n = 1241
<br />
<br />1.11
<br />
<br />>,.::,~ >,.::,~ >,.::,~ >,~ >,~.::,Q" >,'::'~ \.",~ \.",~ >,~ \~ .",'b
<br />" ,," ",Pf Y V' ,<:>"<" -..;....'i {'l' ....'0 V' ....~:r'
<br />
<br />FIGURE 6.-Distributions of hatching dates of drift-net-captured Colorado pikeminnow larvae and seine-sampled juveniles
<br />captured in the middle and lower Green River in summer and autumn 1991 and 1992 compared with the distributions for ffiM
<br />simulations using the hatching-date distributions of drift-net-captured larvae as input. First-cohort fish are represented by the
<br />lefunost set of blact bars in each histogram, second-cohort fish by the white bars, and third-cohort fish by the righ1most black
<br />bars; the lower Green River in 1992 has a fourth cohort (righ1most white bars). Relative survival index values are given above
<br />each cohort for autumn juveniles captured in the field and juveniles in mM simulations (see also Table 1). The arrow intersecting
<br />the larval hatching date axis represents the last date drift-net samples were collected.
<br />
<br />
<br />IBM
<br />juveniles
<br />(n = 2171
<br />
<br />1.40
<br />
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