8214

• UCREFRP Catalog Number: 8214
• Author: Modde, T., D. Irving and R. Anderson.
• Title: Habitat Availability and Habitat Use of Endangered Fishes in the Yampa River during Baseflow Periods.
• USFW Year: 1997.
• USFW - Doc Type: Vernal, Utah and Grand Junction, Colorado.
• Copyright Material: NO

more variable at Cluster 115.5 (Figure 21). At flows of about 80 cfs there is an inflection point in
the plot ofthe C.V./discharge relationship (Figure 13).

HABITAT COMPOSITION
COMBINED CLUSTERS 94.0 & 115.5

140
120
--- 100
4:
Woo
'--0 80
C\l C
::J C\l
O"CI)
!:!2-::J 60
<(~
WI--
0:::'-" 40
<(
20

I I I I i I
I
............._..._.,0._._ -.. I -r-------r-.....--
; !
i --+--+
-. ...-- ! ----+-.--/ T--- t----t-< ..---
I I :
i ! I ,.1-..---/ I ; !
At- i
: i //f'" I I ! i
---~--- .....
L../ ! ! i l
; ;
'" :,</ -1 ! i
i i-i-i----------
/' "'-....
;Y'- i~ I ._-
r--.. j I iz
;
I r-------i. '
/ ! -4~l:t;-
/? ,
,,/ I .......... lr--I i I
i
_'m" -.. : l
~ g, :W.

o
o

50

100

150 200
FLOW (cfs)

250

300

Figure 18. Strata 8, habitat composition for modeled flow for 6 habitat types.

HABITAT VERSUS FLOW
Combined Clusters 94.0 & 115.5

300

------

CLASS I

--.--'1Itjf----

CLASS II

---+--

SHALLOW POOL

DEEP RUN

. ~>+:-._.-....

SHALLOW RUN

----------

FAST

350

2 250
o
o
o
:: ~ 200
~~
C
.t= ro 150
~ ~
ro 0
::J-C
g C 100
<l::
w
n:: 50
<l::

-.
-----------------<
.... ...----------------
------------- .-
..---------
i
.
1m
:
'-

o
o

100

200
FLOW (cfs)

300

1_._ GROSS

_ USUABLE I

Figure 19. Strata 8, habitat/flow relationships for 2 clusters combined.
38

400