LESSONS LEARNED PILOT STUDY MAY 12, 2009 – SEPTEMBER 13, 2009 Leslie Alber.
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Transcript of LESSONS LEARNED PILOT STUDY MAY 12, 2009 – SEPTEMBER 13, 2009 Leslie Alber.
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Acoustic Telemetry: Adult Spring-Run Chinook Salmon
on The Lower Yuba River
LESSONS LEARNEDPILOT STUDY
MAY 12, 2009 – SEPTEMBER 13, 2009
Leslie Alber
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Objective
To determine spatial and temporal distributions◦ immigration period (spring)◦holding period (spring through fall)◦spawning period (fall)
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Tagged 30 adult spring-run Chinook Salmon
◦ Hook-and-line sampling◦ MAY 12, 2009 – MAY 26, 2009
◦ Vemco V13 transmitters via esophageal/gastric insertion Random repeat intervals of 30-90 sec
Methods
Passive TrackingActive Tracking
◦ 19 VEMCO VR2W monitoring receivers Yuba/Feather River Confluence Narrows
Reach (below Englebright Dam)◦Maintained & downloaded by Jonathan Nelson and the Wild Trout crew
◦VEMCO VR100 mobile tracking receiver w/ VH110 directional hydrophone Weekly surveys by boat (Narrows Confluence)
or foot (Narrows Englebright) May 20, 2009 – November 13, 2009
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Study Area
VR2W Locations
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29 Fish Detected(58086 - 58114)
5 Never detected above DPD
2 Last detected in the Feather River
3 "Lost" Never detected after DPD
24 Fish detected above DPD
10 Detected in the Narrows reach
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8 Detected below DPD plunge pool/ Station 05/05A
2 Tagged at RM2 6 Tagged at DPD1 Held at DPD
before and after being detected
downstream
2 Last detected in the Feather River
3 Detected downstream before
holding at DPD
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Lowest receiver downstream
Highest receiver upstream
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North Ladder South Ladder Unknown23 0 1
Passes
Ladder Use North (Daguerre 03) vs. South (Daguerre 04)
24 Fish passed
DPD
North Side South Side
18 11
North Side South Side
55% 45%
Average / Min / Max
52 / 0 / 210
# of Passes Between the North and South Sides of DPD
# of Fish Dominantly @
Overall Percentage
Percentage of Detections - DPD Plunge Pool North (Daguerre 01) vs. South (Daguerre 02)
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The area between DPD and Hwy 20 was most likely used largely as a migratory corridor.
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By August 31, 2009 (date of first observed redd) 16 fish were detected at or above Hwy 20◦ The remaining 8 fish were first detected in this section
between September 1, 2009 and September 25, 2009
Above Hwy 20
Below Hwy 20
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5
2
1
9
4
Sept. 7-11, 2009Sept. 14-18, 2009Sept. 21-28, 2009Sept. 28- Oct. 2, 2009Oct. 5-9, 2009
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Daguerre Point Dam
Timbuctoo
Hwy 20 Bridge
Narrows Pool
Simpson Lane Bridge
Feather River
* Week Following First Observed ReddRST site
Movement of Adult Spring-Run Chinook Salmon
Lower Yuba River
May 12-18, 2009May 19-25, 2009May 26- June 1, 2009June 2-8, 2009June 9-15, 2009June 16-22, 2009June 23-29, 2009June 30- July 6, 2009July 7-13, 2009July 14-20, 2009July 21-27, 2009July 28- Aug. 3, 2009Aug. 4-10, 2009Aug. 11-17, 2009Aug. 18-24, 2009Aug. 25-31, 2009Sept. 1-7, 2009Sept. 8-14, 2009Sept. 15-21, 2009Sept. 22-28, 2009Sept. 29- Oct. 5, 2009Oct. 6-12, 2009Oct. 13-19, 2009Oct. 20-26, 2009Oct. 27- Nov. 2, 2009Nov. 3-9, 2009Nov. 10-13, 2009
Index-Area Site
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Summary
Individual movement patterns were diverseFish held in the DPD plunge pool1/3 of the Chinook tagged were tracked in the
Narrows ReachAll fish tracked above DPD were detected at
or above Hwy 20 during the spawning period
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Acknowledgments
Jonathan Nelson, Roger Bloom, Brian Hennes and the Wild Trout Crew
Brian Kreb, Jen Bergman, Duane Massa, Casey Campos, Ryan Greathouse, Kyle Thompson, Colin Purdy, Derek Givens, & Naoaki Ikemiyagi (PSMFC Yuba River Crew)
River Management TeamLand Owners (UC Davis Extension, Cordua
Irrigation District, PG&E, Yuba Recreation Inc.)
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Questions?