Estimating Abundance of Juvenile Winter-run Chinook Salmon Entering and Exiting the Delta [SAIL]
Description / purpose
This is a continuation of a five-year project funded by CDWR and CDFW and the Central Valley Project Improvement Act in 2017. The objective of the project is to improve estimates of population abundances for fall, winter and spring run juvenile Chinook Salmon at Sacramento and Chipps Island by improving trawl efficiency estimates using data from releases of coded wire tags (CWT), acoustic tags (AT), and by genetically sampling the trawl catch in 2025 and 2026. The project will (1) develop statistical models for estimating trawl efficiencies using 2016-2025 data for paired AT-CWT releases of winter run and fall-run Chinook Salmon; (2) use 2016-2025 genetic sampling of trawl catch in combination with efficiency estimates to estimate population abundances of fall, spring and winter run at Sacramento and Chipps Island for 2016-2025; (3) implement trawl efficiency studies for multiple salmon runs in 2025-2026 informed by the prior results and in coordination with hatcheries for inclusion of AT fish with existing CWT releases; and (4) combine trawl efficiencies with genetic samples of trawl catch to provide estimates of fall, spring and winter-run salmon abundance (with estimated precision) entering and exiting the Delta in 2016-2025.
Linked science activities
| ID | Title |
|---|---|
| #50153 | Delta Juvenile Fish Monitoring Program [DJFMP] → |
Collaborators
Activity status
- 1 Awarded / Initiating (2017)
- 2 In progress / Ongoing (2017 - 2025)
- 3 Complete
Funding summary
Total allocated funding: $0
| Label | Value |
|---|---|
| Contract # or labor code | PEN#322 |
| Implementing organization | U.S. Fish and Wildlife Service [USFWS] |
| Funding organization | California Department of Water Resource [DWR] |
| Funding Source | Not provided |
| Date of award | 2020 |
| Date of fiscal year-end | Not provided |
| Total award amount | $0 |
| State type of obligation | Not provided |
| Federal type of obligation | Not provided |
| Reimbursability | Not provided |
| Procurement mechanism | Not provided |
| Annual expenditures |
2021 - $600000.00 |
| Label | Value |
|---|---|
| Contract # or labor code | PEN#322 |
| Implementing organization | U.S. Fish and Wildlife Service [USFWS] |
| Funding organization | U.S. Bureau of Reclamation [USBR] |
| Funding Source | Not provided |
| Date of award | 2020 |
| Date of fiscal year-end | Not provided |
| Total award amount | $0 |
| State type of obligation | Not provided |
| Federal type of obligation | Not provided |
| Reimbursability | Not provided |
| Procurement mechanism | Not provided |
| Annual expenditures |
2021 - $757000.00 |
Products and outputs
None provided