7888

• UCREFRP Catalog Number: 7888
• Author: Minckley, W. L.
• Title: Native Fishes And Natural Aquatic Habitats In U.S. Fish And Wildlife Service Region II West Of The Continental Divide, A Review of Population and Habitat Status and Evaluation of Survival Potentials for Native Freshwater Fishes, with Recommendations.
• USFW Year: 1985.
• USFW - Doc Type: \
• Copyright Material: NO

LIST OF TABLES

Tabl e Page

1 A summary of six adult sampling trips on the San Juan River
in New Mexico, Colorado, and Utah, 1991 and 1992 . . . . . . . 6

2 Scientific and common names, status, and two-letter codes for
fish collected in the San Juan River, in New Mexico, Colorado,
and Utah, 1991 and 1992 . . . . . . . .. ... . 9

3 Total number of fish collected in electrofishing and netting
collections in 1991 and 1992 . .. . . . . . . . . . . . 10

4 Adult Colorado squawfish collected from the San Juan River, New
Mexico, 1991 and 1992 . . . . . . . . . . . . . . . . . . . 17

5 Roundtail chub collected from the San Juan River in New Mexico
and Utah, 1991 and 1992 .. . . . . . . . . . . . . . . . .. 18

6 Colorado squawfish and roundtail chub that were observed while
electrofishing in 1991 and 1992, but could not be collected.
All observations occurred in New Mexico or Utah . . . . . . . . . 22

7 Total longitudinal movement, maximum displacement, and final
displacement of radio-tagged Colorado squawfish in the San
Juan River, New Mexico, 1991 and 1992 ....... . . . . . . . 26

8 Types of electrofishing boats used on adult sampling trips on
the San Juan River in New Mexico, Colorado, and Utah, 1991 and

1992 . . . . . . . . . . . . . . . . . . . . . . . . . .. .. 32

9 Total number of fish collected in electrofishing collections
only, San Juan River, New Mexico, Colorado, and Utah, 1991 and

1992 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

10 Electrofishing capture rates for all sampling trips in a single
year combined, San Juan River, New Mexico, Colorado, and Utah,
1991 and 1992 . . . . . . . . . . . . . . . . . . . . . . . . . . 34

11 Electrofishing capture rates for May sampling trips, San Juan
River, New Mexico, Colorado, and Utah, 1991 and 1992 . . . .. 35

12 Electrofishing capture rates for June and July sampling trips,
San Juan River, New Mexico, Colorado and Utah, 1991 and 1992 . 36

13 Electrofishing capture rates for October sampling trips, San
Juan River, New Mexico, Colorado, and Utah, 1991 and 1992 37

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