7739

• UCREFRP Catalog Number: 7739
• Author: Muth, R. T. and T. P. Nesler.
• Title: Associations Among Flow and Temperature Regimes and Spawning Periods and Abundance of Young of Selected Fishes, Lower Yampa River, Colorado, 1980-1984 - Final Report.
• USFW Year: 1993.
• USFW - Doc Type: \
• Copyright Material: NO

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1982).

Table I.-Fishes of the Yampa River, Colorado (adapted from Behnke et at 1982; Tyus et at

Princinal distribution by river sections.
Upper Middle Lower
Section Section ~ion Relative abundanceb

Taxon

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NATIVES

CyprIDIdae
Humpback chub GiJo cyphDc
Bonytail G. e1egtms"
Colorado roundtail chub G. robustD robustDc
Colorado squawflSh PtychocheiJus Iuciur
Colorado spectled dace /WnichJJrys oscu/us yarrow;
Calos1omldae
Colorado b1uehead sucker CtItostomw discobolus discobolus
Flannelmoutb sucker C 1Dtipinnis"
Mountain sucker C plolyrhynchus
Razorback sucker Xyrauchen texIl1IU.sC
s.Ja.DIdae
Colorado River cutthroat trout Oncorhynchus clDrlci pleuriticus"'
Mountain whitefISh Prosop;um wiJJiomson;
Cotticlae
Mottled sculpin Cottus bairdi pU1lCtulatu.s

x

I

x
X
X

X

I

X

X
X

X

I

X
X

X

I

X
NONNATIVES

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Cyprinidae
Red shiner Cyprine/Ja IutTensi.s
Common carp Cyprinu.s carpio
Utah chub GiJo alTario
Sand shiner NotTOpis stramineus
Fatbead minnow Pimephales promelas
Redside shiner Rkhordsonius bahearus
Creek chub Semotilus atromaculatu.s
Catostomldae
White sucker CalOStomus commerson;
Ictalurldae
Black bullhead Ame;uru.s melas
Channel catfISh Ictalurus punctatu.s
Esociclae
Northern pike Esox lucius
Salmonidae
Rainbow trout Oncorhynchus mykiss
Brown trout Sa/mo ITUIII1
Brook trout Salvelinus fontinalis
Cyprinoclontldae
Plains killifISh Fundulus ubrinus
ee......n:bIdae
Green sunfISh Lepomis cyanellus
Bluegill L m<<roehirus
Smallmouth bass M;cropteru.s dolomieu
Largemouth bass M. saJmoides
Pen:icIae
Walleye Slizostedion vitreum

X

X

X
X
X

I

x

X

I

X
X

I

X

X
X
X

X

I

X

I

I

X
X
X
X
X

rare
incidentald
common
rare
common

X
X

common to abundant
common
rare
incidental to rare

X

incidental to rare
common

common

X
X
X
X
X

common to abundant
common
incidental
common
common to abundant
common to abundant
rare

common

X

incidental to rare
common

X

rare to common

X

(X)mmon
incidental to rare
rare to common

incidental to rare

X
X
X
X

rare
incidental
incidental
incidental

X

incidental

.Upper section = headwaters downstream to Hayden, Colorado, middle section = Hayden downstream to
Cross Mountain Canyon, lower section = Cross Mountain Canyon downstream to Yampa-Green River
confluence. bRelative abundance within river sections of principal distnbution: abundant = occurring in
large numbers and consistently collected, common = occurring in moderate numbers and frequently
collected, rare = occurring in low numbers and having restricted or sporadic distribution, incidental =
occurring in very low numbers and known only from a few point collections. cFederally endangered.
dProbably extirpated from the Yampa River. cCandidate (under review) for federal listing.

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