9533

• UCREFRP Catalog Number: 9533
• Author: Muth, R. T. and E. Wick.
• Title: Field Studies on Larval Razorback Sucker in Canyonlands National Park and Glen Canyon National Recreation Area, 1993-1995.
• USFW Year: 1997.
• USFW - Doc Type: Fort Collins.
• Copyright Material: NO

-------------------

TABLE 6.-FIELD STUDIES ON LARVAL RAZORBACK SUCKER IN CANYONLANDS NATIONAL PARK AND GLEN
CANYON NATIONAL RECREATION AREA - FISH COLLECTIONS IN THE COLORADO RIVER INFLOW TO LAKE POWELL,
UTAH, 1994. Species codes: TS = threadfin shad Dorosoma petenense, RS = red shiner Cyprinella lutrensis, CP = common carp
Cyprinus carpio, CH = Gila sp., SS = sand shiner Notropis stramineus, FH = fathead minnow Pimephales promelas, CS = Colorado
squawfish Ptychocheilus lucius, SD = speckled dace Rhinichthys osculus, BH = blue head sucker Catostomus discobolus, LM =
largemouth bass Micropterus salmoides. L T = floating quatrefoil light trap; SE = 1.6-mm mesh, 1 X 3-m seine; GM = geometric
mean; CPE = catch per effort (number of fish/10 h, L T, or 10 m2, SE).

9-12 JUNE (24 L T AND 0 SE SAMPLES)
R5 1449 140 1306 1449 49.7
CP 185 177 8 185 2.2
CH < 0.1
55 429 428 429 3.9
FH 3370 75 3289 4 3370 27.6
TOTAL 5434 215 5200 12 2 5 5434

19-20 JUNE (8 LT AND 0 SE SAMPLES)
R5 5061 130 4929 2 5061 234.7
CH 153 112 41 153 2.0
55 80 80 80 3.8
FH 1110 51 1052 7 1110 104.9
BH 13 13 13 0.7

I TOTAL I 6417

181

6173

63

6417

16-17 JULY (16 L T AND 5 SE SAMPLES)
T5 43 43 43 0.5
R5 19386 171 18179 558 408 60 10 18797 672.5 589 27.8
CP 138 4 24 110 28 0.4 110 1.7
55 384 292 48 27 7 10 353 7.3 31 1.5

16