6032

• UCREFRP Catalog Number: 6032
• Author: Maddux, H., et al.
• Title: Effects of Varied Flow Regimes on Aquatic Resources of Glen and Grand Canyons
• USFW Year: 1987.
• USFW - Doc Type: Final Report.
• Copyright Material: NO

5.1. Rainbow trout catch per unit effort (catch/10 minutes)
and water temperature (o C) by season for Bright
Angel and Tapeats Creeks (all years combined) .......... 119
5.2. Relative frequency of all trout species and native
species (flannelmouth sucker, bluehead sucker,
humpback chub, and speckled dace) by season from
tributaries (excluding fish captured by larval
seine) .................................................122
6.1. Percentage of adult rainbow trout with expressable
gametes, reaches 10-40 .................................138
6.2. Percentages of ripe and spent rainbow trout creeled
at Lee's Ferry from June 1984 to May 1986 ..............139
6.3. Gonosomatic index of creeled rainbow trout from Lee's
Ferry, June 1984 to May 1986. Upper values include
mean and range of fish in reproductive condition;
lower values include mean and range of fish in spent
condition ..............................................140
6.4. Catch per unit effort of y-o-y rainbow trout (05 mm)
and fathead minnow (<25 mm) captured by bag and larval
seine at 16 km (10 mile) intervals .....................141
6.5. Percentage of adult brook trout and brown trout with
expressable gametes from reaches 10-50 combined ........ 143
6.6. Catch per unit effort of y-o-y bluehead sucker
(<25 mm), flannelmouth sucker (<25 mm), humpback chub
(<50 mm), and speckled dace (<25 mm) captured by bag and
larval seine at 16 km (10 mile) intervals ..............145
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