Transcript presentation

Resident Fish Above Chief Joseph and
Grand Coulee Dams
Project No. 1997-004-00
Kalispel Tribe of Indians
Washington Department of Fish and Wildlife
Spokane Tribe of Indians
Colville Confederated Tribes
Jason Connor
Charles Lee
January 18, 2012
Project Goals
1. Assess current fishery and habitat conditions in
the Blocked Area using regionally standardized
data collection methods.
2. Compile standardized fishery, habitat, and water
quality data into publically accessible database to
facilitate data sharing, transparency, and ensure
policy makers and managers have access to the
latest research with which to base decisions.
3. Recommend and implement management
actions based on research results.
Major Accomplishments
1. Baseline tributary and lake fishery and habitat
assessments.
2. Box Canyon Reservoir resident fishery and
northern pike invasion.
3. Redband trout stock assessments on Spokane
River, Lake Roosevelt, and upper Columbia
River.
4. Westslope cutthroat trout movement and survival
in the Priest/Pend Oreille rivers.
5. Burbot stock assessments in Bead and Sullivan
lakes.
Objectives
1. Native redband trout stock assessment in lower
Spokane River, Lake Roosevelt, and upper
Columbia River.
2. Lake trout stock assessment in Priest and Upper
Priest lakes.
3. Box Canyon Reservoir northern pike and
resident fish monitoring.
4. Data management.
Box Canyon Reservoir northern pike and
resident fish monitoring
WDFW Standardized
warmwater surveys (3-5 yrs.)
Spring Pike Index Netting
Surveys SPIN (annually)
Gill net, fyke net, electrofishing
•Species composition
•Relative abundance
•Growth, size and age structure
•Condition
Gill netting Survey
•Abundance
•Growth, size and age structure
•Condition
•Maturity, fecundity
•Diet
•Total annual mortality
Priest Lake and Upper Priest Lake
lake trout stock assessment
1. Movement, behavior, and survival
2. Abundance
3. Population structure
IDFG methods developed at
Lake Pend Oreille
Trap nets, gill nets
Acoustic telemetry
Lake Roosevelt
Grand Coulee Dam
1939
Little Falls Dam 1910
243 km long
33,490 hectares
Upper Columbia
River
(US – Canada Border)
Additional ~ 26 km
Co-Managers
Washington Dept. of
Fish and Wildlife
Spokane Tribe of
Indians
Colville Confederated
Tribes
Big Sheep Creek
(WDFW / JSAP)
Rotary Screw Trap
Smolt Fence / Box
Trap
PIT Tag Array
Resistance Board
Weir
Kettle River
(WDFW)
Rotary Screw Trap
Sanpoil River (CCT)
Rotary Screw Trap
PIT Tag Array
Resistance Board
Weir
Blue Creek
(STOI / JSAP, LRFEP)
Smolt Fence / Box
Trap
PIT Tag Array
Adult Weir
Native Redband Trout Stock Assessment in Lake Roosevelt
and the Upper Columbia River
 Genetic Composition
 Recruitment
 Harvest
 Escapement
 Interactions with hatchery
stocks
Provide stock assessment data to managers to help in developing
strategies to manage for recreational and subsistence harvest,
while promoting healthy wild populations.
Big Sheep Creek Native Redband Trout Stock Assessment
2010
•Installed Rotary Screw Trap (RST)
•Constructed and Tested PIT Tag Array
•Weekly Discharge
2011
•Rotary Screw Trap (May-July)
Collected 137 Juvenile Redband
Genetics and Scale samples
•Modified Box Trap / Drift nets
Collected 32 YOY and 1 Juvenile
•Instream PIT tag detection
•Weekly Discharge Measurements
22 – 3,544 cfs
Kettle River Native Redband Trout Stock Assessment
2010
• Rotary screw trap installed October 18
• First redband trout collected November 4
2011
• 1,840 fish and 13 species collected
• May 13 discharge >26,000 cfs
• 17 redband collected
• One redband tagged August 30
2012
• Operate screw trap on Kettle River
• Juvenile trapping on Kettle River tributaries
Questions?