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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16

Gila sp. 1980 r -
1981
1982 0.051
1983
1984
...--.--------------.--.--------.--------.--.---------------------------------------...----------
Rhlnlchthys
osculus

en
w
>
~
Z

-0.282

----------------.---.-.--.-----.-.----.----------------------------------------------------------

Cstostomus
discobolus

-0.299

----------.-----------------------.----------------------------.----.----------------------------

Catostomus
latipinnis

0.309

Cyprinel/l!
futrensls

-0.950*

______________________________________________.______________e_____________________._____._______

Notropis
strBmineus

en
w
>
;::
<(
Z
Z
o
Z

-0.954*

---.--------------.-------.-----.-.--------------.--.------.-------------------------------------

Pimephales
promelas

-0.977*

----------.--.....--...--..-..-.-.----.-.--...-..-.-...-.----.-----...-..-.-.-.-.-..-.-...-..-.--

Richardsonius
bahestus

0.570

1

OCT

Figure 5.-Estimated annual spawning periods (horizontal bars; determined from collections of
age-O fish) for selected fishes, lower Yampa River, Colorado, 1980-1984, and correlations (pearson r)
among years between estimated number of days, beginning April 1, to annual initiation of spawning and
estimated total number of days in the annual spawning period for each taxon. Coefficients in bold type
foUowed by an asterisk (*) are statisticaUy significant (r ~ 0.878; df = 3; P :s: 0.05). Gila sp. primarily G.
robusta robusta.