Juvenile Salmonid Emigration Monitoring in the Middle Sacramento River. Diane Coulon California Department of Fish and Wildlife

Transcription

1 Juvenile Salmonid Emigration Monitoring in the Middle Sacramento River Diane Coulon California Department of Fish and Wildlife

2 Monitoring is conducted primarily to develop information on emigration timing and race of juvenile Chinook salmon and steelhead trout. The National Marine Fisheries Service Operations Criteria and Procedures Biological Opinion states Sacramento River new juvenile monitoring station: The exact location to be determined, between RBDD and Knights Landing, in order to give early warning of fish movement and determine survival of listed fish species leaving spawning habitat in the upper Sacramento River. Objectives: Provide data on juvenile salmonid downstream movement patterns to create greater flexibility in water management by providing advanced notice of emigrating salmonids moving to the Delta. Current planning efforts are focused on developing solutions to protect Delta fisheries while providing a sustainable and relaible water conveyance system. Data will assisst in conflict resolution between water management operations and listed species. Enhance existing RST Monitoring sites; ability to track movement of emigrating salmonids between sites. Provide assurance against interruptions in emigrant data due to a failure at one of the other monitoring sites. Identify influences of middle Sacramento River flood relief structures on downstream movement of salmonids. Correlate abiotic factors with fish movement patterns.

3

4 Tisdale Weir RST s Two 8 RST s at River Mile 159 on RL w/ river and shore anchor Installed 7/7/10 and fished since installation Upstream of Tisdale Weir but downstream of Moulton and Colusa Weirs Max CFS for the Sac is 66K Location was selected to evaluate the weirs affects on fish abundance etc. Assess timing and relative abundance Moulton and Colusa Weirs using Tisdale KL data can be used to evaluate Tisdale Weir (spills most frequently)

5 Moulton Weir RST s Two 8 RST s at River Mile 120 on RR w/river and shore anchor Installed 7/9/10 and continuously fished through 3/19/10 Unique in that it is only sampling location in the mainstem river that all fish pass, even during high flow events. Upstream of all major flood relief structures: Tisdale, Colusa and Moulton weirs. All weirs drain into the Sutter bypass. Has the greatest range and fluctuation in flows.

6 RBDD (RM 243) GCID (RM 205) Moulton Weir * (RM 159) Tisdale Weir RST location (2 x 8 cone) Tisdale Weir (RM 120) Knights Landing (RM 88)

7 CFS Sacramento River Hydrograph Mean Daily Flows Mean on Daily the Sacramento Flows on River the Sacramento at Ordbend (ORD), River Hamilton at Butte City (HMC), (BTC), Butte Colusa(COL), City (BTC), Colusa(COL), and below Wilkins and below Slough Wilkins (WLK) Slough (WLK) BTC COL WLK HMC ORD BTC COL WLK Flow Tisdale RST s Stable flows w/ little riparian inundation Flow Moulton RST s

8 CFS Percent Flow (cfs) and Cumulative Percent Distribution of Catch 1 BTC (cfs) Fall Spring Winter Late-fall Ad-clip CS Hatchery Release

9 CFS Percent Flow (cfs) and Relative Percent Distribution of Catch 1 Flow cfs (@ COL) # Winter # Spring # Fall

10 Flow (cfs) Number of fish Comparison of salmon catch to flow 10/1/12-12/15/12 45, , , ,000 25,000 20,000 Flow (cfs) Fish captured , , , Date

11 Comparison of salmon catch to flow 3/4/13-5/23/13

12 Number of fish OCAP BO Sacramento River new juvenile monitoring station: to give early warning of fish movement and determine survival of listed fish species leaving spawning habitat TIS Spring KL Spring Date

13 Number of fish OCAP BO Sacramento River new juvenile monitoring station: to give early warning of fish movement and determine survival of listed fish species leaving spawning habitat TIS Winter 20 KL Winter Date

14 Number of fish p.m. Check 7 a.m. Check /29 4/30 5/1 5/2 5/3 5/4 5/5 5/6 5/7 5/8 5/9 5/10 5/11 5/12 5/13 5/14 5/15 5/16 5/17 Date

15 UPCOMING ACTIONS Establish trap efficiencies under different flows. Obtain additional data on movement of hatchery and wild fish in 24 hour period. Compare passage and relative abundance between Sac. River trapping sites. Identify and compare emigrant cues between trapping locations: -thermal barriers, different flow regimes, hatchery releases. Additional comparison of hatchery release size and trap capture.