7089

• UCREFRP Catalog Number: 7089
• Author: Northwest Power Planning Council.
• Title: Strategy for Salmon
• USFW Year: 1992.
• USFW - Doc Type: Columbia River Basin Fish and Wildlife Program.
• Copyright Material: NO

Intermediate-term actions

· Evaluate, design and test prototype exten-
, ded-Iength screens at Snake anti Columbia
dams. .
"-
· Continue working on fish passage improve-
ments at Bonn~ille I?am. \

· Improve screerung and bypass for both juve-
nile and adult fish at the Leaburg and Walter-
ville hydroelectric projects in the ,Willamette
River Basin. Similar actions are called for at
the mid-Columbia public utility disjict
d.ams. I.

Red~ce losses to predators

.

As an experimen~ reduce the popuIatio~ of ,
squawfish~a salmbn predator,'by 20 per<:ent
in the Columbia River.

Evaluate and report on predation of salmon
I
by seals and sea lions in the lower Cohllnbia
River.,

.

. Barge juvenile fish past dams

)
Immediate actions

I ,

. Accelerate improvements in barge transpor-
tation of juvenile salmon past Sruike and
Coiumbia dams, including use of cooler ,
water and reduc~d densities of fish in barges
and :broader dispersion of the fish at release
sites.

/ Intermediate-term actions

,. . Study improved fish holding and lo~ding
facilities, alternative fish collection sites and .
alternative transportation technologies.

1985 _ :
United States and Canada sign Pacific Salmon Treaty, limiting ocean
harve$ts of salmon and committing to fish enhancement efforts. .

pY

Additional river actions.

· Conduct water availability studies, establish
minimum instream flow levels, deny new
water appropriations that would'~ ana-
dromoUs fish and acquire existihg water
rights on a "willing-seller" basis to improve
fish flows.

· Enforce water 'rights and withdrawallim:its
at, diversionS,inch1ding measuring devices.

'. Seek mitigation forlower water levels behind
Dworshak Dam.

. InstaH juvenile 'pIt tag qetectors at mainstem
dams to better track migration. '

· Evalqate impacts of flow operations on resi-
d~nt fish at Hungry Horse, Libby, Grand
Coulee and Dworshak dams.

· Study gas supersaturation resulting from
increased flows. .'

· Evaluate modifications to bypass r~lease
systerrisat dams to reduce juvenile mortality
and use of sound to guide fish away from
turbines.

· Report on the extent of predation and preda-
tor research in the mid-Columbia ~servoirs.

· Eval~ate feasibility of using-video-based
. . counting of adult fish, passing darns. Institute
if feasible.

· Evaluate adult fish losses between dams.

· EvalJ.1ate the ~ffects of recent shad population
increases.

· . , Continue to upgrade existing adult fish.
. passage facilities. .

· Upgrad~ the U.S. Army Corps of Engineers'
,Snake/aearw~ter :River temperatUre model
with 1991 data.

.1988
Power Planning Council designates 44,000 miles of stream as protected from
new hydropower development because they contain important fish or
wildlife habitat. I . ....