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

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TABLE 11.-CAPTURES OF LARVAL RAZORBACK SUCKER IN THE MIDDLE AND
LOWER GREEN RIVER SYSTEMS, 1992-1996, BY GEAR TYPE AND PRINCIPAL
COLLECTOR. Middle Green river includes sampling sites from the confluence of the Yampa
and Green rivers downstream to the Ouray Bridge. Lower Green River includes sampling sites
inside Millard Canyon and in the Anderson Bottom-Bonita Bend area (1993-1996), near the
confluence of the San Rafael and Green rivers (1994-1996), and near the town of Green River
and inside Holeman Canyon (1996). Numbers are number of fish (geometric mean catch per
effort; where data were available). Catch per effort = number of fish per 10 h of light trapping or
10m2 seined. Data for 1996 are preliminary. Shaded cells = no samples were collected; open,
blank cells = samples were collected but no razorback sucker larvae were captured.

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1992

Drift Net

3
17
20
9
55
228 (0.6)
292

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Seine

TOTAL NUMBER

1993

Drift Net

:::::::::::i:ii:i:::::::::::::::~::~:::!::::::::::::::::::::::::::::::::::::::::::::::::::::::::::!:::::!:::::::::::::i::::::i::!:::::::::::::::::::::::::i::::::::::::::!::::::::[\::

Seine

light Trap
TOTAL NUMBER

1994

Seine

:::::::::1:::::::::::::::1::!:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::H::::::::::::!::::::::::::::::::::::::::::::::!:::::::::::::::::::::::1::::::::::::::::::
::::::::::

light Trap
TOTAL NUMBER

1217 (2.5)
1217

44 (0.7)

44

1995

Seine

:::::::::1::::::::1:::::::::::::::::;1:11:::::::::::::::::!::!:::::::::::::::!::::!!::!:::::::::::::::::.

light Trap
TOTAL Number
1996 Seine
light Trap
TOTAL NUMBER
11992-1996 I TOTAL NUMBER I

32 (0.1)
32

4 (0.1)
4

8(<0.1)
214 (0.3)

222

:::::!I\::::::::::::::::!:;]:::::::::::::::::;]:::::l::::::~!::!:I:::::::::!:::::::::!:fu1:~~'

173 (0.4)
173
1734

25

2
120 (2.4)
122
15 (5.0)
32 (1.3)
47

1 (< 0.1)
1

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440