WY2022 Conditions for the Salmon Monitoring Team -- ARCHIVE

Content on this page is updated daily and includes the most up-to-date datasets contained in the SacPAS database. Juvenile monitoring and salvage data are updated as made available publicly.

• CDEC 6:00am
• Knights Landing RST 8:10am, 4:10pm
• Sacramento Trawls and Beach Seines weekly, typically Monday
• Salvage 6:10am, 1:10pm

• Juvenile Monitoring & Sampling data queries
• Juvenile Salvage & Loss data queries
• Loss and Salvage Predictor real-time forecasts from approximately December to mid-June

Species Distribution Estimates

Estimates presented during weekly meetings. Submitted by BOR to SacPAS after weekly meetings for automated generation of plots.

Juvenile Sampling

Juvenile Sampling Summary for 06/20/2022-06/26/2022 (last 7 days) and 06/13/2022-06/19/2022 (previous 7 days)

• Tisdale Weir RST: Preliminary data from CDFW via StreamNet and CDEC; subject to revision.
• Knights Landing RST: Preliminary data from CDFW via StreamNet and CDEC; subject to revision. Turbidity is a discrete measure. KNL measured in FTU which should be roughly equivalent to NTU.
• Sacramento Trawls (@ Sherwood Harbor): Preliminary data from USFWS Lodi and CDEC; subject to revision.
• Sacramento Beach Seines: Preliminary data from USFWS Lodi and CDEC; subject to revision.
• Chipps Island Trawls: Preliminary data from USFWS Lodi and CDEC; subject to revision.
• Mossdale Trawls: Preliminary data from USFWS Lodi and CDEC; subject to revision.
• Averages: calculated for all non-null data points within the 7 day reporting period.

Updated: Monday, 27-Jun-2022 08:16:04 PDT

Historical Migration Pattern for "Today"

Updated: Friday, 27-Sep-2024 08:29:16 PDT

CWT Spring Surrogates

For WY 2022 there are multiple groups of spring-run Chinook salmon hatchery surrogates used to meet requirements in both the Proposed Action and the ITP.

• Proposed Action (PA) 4.10.5.10.2 Additional Real-Time OMR Restrictions and Performance Objectives
• ITP Condition of Approval 8.6.4

PA 4.10.5.10.2 / COA 8.6.4 Young-of-Year Spring-run Chinook Salmon Hatchery Surrogate Summary Table, Water Year 2022

Single-Year Loss Thresholds

Single-Year Loss Thresholds (PA 4-69)

In each year, typically January/February, Reclamation and DWR propose to avoid exceeding an annual loss threshold equal to 90% of the greatest annual loss that occurred in the historical record from 2010 through 2018 for each of:

• Natural Winter-Run Chinook Salmon (loss= 1.17% of JPE)
• Hatchery Winter-Run Chinook Salmon (loss= 0.12% of JPE)
• Natural Central Valley Steelhead from December through March (loss =1,414)
• Natural Central Valley Steelhead from April through June 15 (loss = 1,552)

Summary Loss Table

Natural Winter-Run Chinook Salmon Loss

Natural Central Valley Steelhead

Daily Loss Table

Alerts: Deer Creek, Mill Creek, Wilkins Slough, Knights Landing

Updated: Monday, 27-Jun-2022 08:30:03 PDT

Monitor Deer Creek and Mill Creek for average daily flow >95 cfs or >50% change from prior day

Monitor for both conditions: Wilkins Slough average daily flow >7500 cfs and Knights Landing temperature <56.3F

DCC Operations

No winter/older Chinook sampling data for Knights Landing, Sacramento Trawls or Sacramento Beach Seines for period, 10/1/2021 - 12/31/2021.

Updated: Monday, 31-Jan-2022 16:15:06 PST

Part 1: DCC operations by Knights Landing or Sacramento Catch Indices (PA 4-56)
Monitoring period: 1 October-30 November
Water quality criteria per D-1641 are met and either the Knights Landing Catch Index or Sacramento Catch Index is greater than 5.0 fish per day (close until both < 3/day)
Water quality criteria per D-1641 are met, either Knights Landing Catch Index or the Sacramento Catch Index are greater than 3.0 fish per day but less than or equal to five fish per day. (closed for 3 days)

Data Set Notes:

1. 2019 Biological Opinions, USBR includes link to "Chapter 4 Proposed Action" PDF
2. Water condtions data courtesy of CDEC.
3. Knights Landing RST and Tisdale RST data courtesy of CDFW via StreamNet.
   • The Knights Landing RST: uses Frank Fisher length-at-date model to categorize Chinook into "older" and "fry/smolt".
4. Sacramento Trawls, Sacramento Beach Seines, Chipps Island Trawls, and Mossdale Trawls sampling data courtesy of USFWS Lodi weekly.
   • Sacramento Beach Seines: Verona, Elkhorn, Sand Cove, Miller Park, Sherwood Harbor, Discovery Park, American River, Garcia Bend.
   • 30 November 2020: Sampling at Mossdale Trawls stopped; sampling at the sites deemed "non-essential" during COVID-19 response.
5. Salvage data courtesy of Fish Salvage Monitoring, CDFW Bay Delta Region
   • Salvage Database, ftp://ftp.dfg.ca.gov/salvage/
   • We use loss estimation methods as detailed in "Chinook Salmon Loss Estimation for Skinner Delta Fish Protective Facility and Tracy Fish Collection Facility, 7/9/2018" ftp://ftp.wildlife.ca.gov/salvage/Salmon%20loss%20estimation.docx