7834

• UCREFRP Catalog Number: 7834
• Author: Burdick, B. D. a. R. B. B.
• Title: Experimental Stocking Of Adult Razorback Sucker In The Upper Colorado And Gunnison Rivers.
• USFW Year: 1997.
• USFW - Doc Type: \
• Copyright Material: NO

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RADIOTELEMETRY HABITAT USE
Colorado River
Razorback sucker
N=12 fish
n=57 observations
Legend
MC=main channel
BA=backwater
EP=eddy/pool
SC=side channel
34 TS=tributary/stream
EM=embayment
SH=shoreline
PO=pool
GP=gravel pit
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MC BA EP SC EM PO GP
HABITAT TYPE
TS SH
Figure 7. Cumulative frequency of habitat use for 12 radiotagged
razorback sucker in the Upper Colorado River, April-August
1994 and March-October 1995. The value immediately above the
bars indicates the cumulative number of observations per
habitat type for all 12 fish. Refer to Appendix; Table B.1.
for frequency of habitat used per fish.
Habitats used by these fish did not necessarily indicate habitat preference.
More meaningful data would be to determine habitat preferred by razorback sucker.
To determine if razorback sucker prefer particular habitat types, usage would
have to be compared with habitat availability. However, habitat availability was
not determined or calculated in the immediate vicinity when a fish was contacted.
In this study, the priority was to determine 1) general fish movement and
dispersal 2) survivorship following stocking, and 3) general habitat use.
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