4209

• UCREFRP Catalog Number: 4209
• Author: U.S. Fish and Wildlife Service.
• Title: Alternative Methods of Preserving and Recovering Three Endangered Colorado River Fishes, and Identification of Significant Environmental Issues.
• USFW Year: n.d.
• USFW - Doc Type: \
• Copyright Material: NO

A. Status Quo (No Action)
Section 7(a) of the Ends
for endangered species t
funded, or carried out t
the continued existence
or result in the destruc
~~
of such species .
required to utilize the:
purposes of the ESA by c
of endangered or threats
Under t}ie provisions of
in a project within the
the Secretary of the i.n
a biological assessment
impacts. If effect is
biological opinion as t
threatened species will
"reasonable and prudent
jeopardy, and which can
permit or license appii
action. Such alternati
project design or opera
offset or compensate fo
The FWS recognizes that
existence and survival
fishes, the river syste
annual fluctuations in
system of large lakes a
natural range of the fi
and natural migration r
The Colorado River Fish
research project establ
data enabling FWS to de
by the fish for surviva
rearing. streamflows a
life stages of the fish
of the river system con
recovery of the fish.
Under Section 7 of the F
whether these streamflo~
under project condition;
measures to be carried c
for project effects is
ngered Species Act provides protection
y maintaining that "any action authorized,
y a federal agency does nut jeopardize
of any endangered or threatened species
tion or adverse modification of habitat
In addition, federal agencies are
r authorities in furtherance of the
arrying out programs for the conservation
ned species.
Section 7, any Federal agency involved
UCRS must enter into consultation with
erior (or his-/her designee) and conduct
of the proposal to determine potential
etermined, the FWS-must then issue a
whether jeopardy to an endangered or
result. The FWS must also suggest
alternatives" that will avoid such
be taken by the Federal agency or the
ant in implementing the proposed
es may i.nvol.ve modification of the
ion, ur other measures designed to
potential impacts.
a mu.l.titude of factors can affect the
f a species. In the case of the UCRB
has changed from one of extreme
low, temperature, and turbidity to a
d highly regulated streamflows. The
hes has subsequently been restricted
utes of the squawfish have been blocked.
ries Project (CRFP), a cooperative
shed in 1979, has collected valuable
ermine environmental criteria needed
spawning, and young-of-the-year
d temperatures required by various
have been determined for certain areas
idered essential for preservation and
SA, projects undergo review to determine
and temperature criteria can be met
In addition, funding of additional
ut by tt~e FWS to offset and compensate
n alterciat.ive presented by FWS. Such