8086

• UCREFRP Catalog Number: 8086
• Author: Valdez, R. A. and B. R. Cowdell.
• Title: Lake Powell Inflow Study. Annual Summary Report - 1993.
• USFW Year: 1994.
• USFW - Doc Type: 384-1,
• Copyright Material: NO

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Table 1.

Table 2.

Table 3.

Table 4.

Table 5.

Table 6.

Table 7.

Table 8.

Figure 1.

Figure 2.

Figure 3.

Figure 4.

UST OF TABLES

Pll2e

Description of fish sampling gear used in the Lake Powell inflow Study, 1993. . . . . . .. 4

Fish species captured in the Colorado River at Lake Powell inflow, 1993. .......... 7

Summary of fish sampling efforts (number of efforts and total time) for Lake Powell

inflow sampling 1993. ................................................. 8

Pooled catch per effort (ePE) by species for electrofishing, Lake Powell inflow,

1993. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 8

Pooled catch per effort (CPE) by species for seines, Lake Powell inflow, 1993. ...... 9

Pqoled catch per effort (CPE) for seining during pre and post-runoff sampling, Lake

Powell inflow, 1993. .................................................. 9

Summary of fish captured in larval light traps during June and August (post-runoff)
sampling of Lake Powell inflow, 1993. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Summary of all Colorado squawfish pit-tagged by BIO/WEST in the Lake Powell

inflow, 1993. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 11

LIST OF FIGURES

Page

General location of the Lake Powell inflow study area. ........................ 2

Flows of the Green River, Colorado River and Cataract Canyon for 1993, as
recorded at Green River and Cisco, Utah, USGS data (Cataract Canyon flows
estimated from sum of Cisco and Green River gages). . . . . . . . . . . . . . . . . . . . . . . . .. 3

Length frequency histogram for age-O and juvenile Colorado squawfish captured in
the Lake Powell inflow, 1993. .......................................... 12

Number of backwaters and age-O and juvenile Colorado squawfish captured seining
in the Lake Powell inflow from 1985 to 1993. .............................. 13

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