Workgroups & Teams

WY2025 Current Conditions for the Salmon Monitoring Team

DCC Operations

graphic Catch Index Knights Landing, Sacramento Trawls, Sacramento Beach Seines (10/1/2024 - 12/31/2024)
Catch Index Knights Landing, Sacramento Trawls, Sacramento Beach Seines (10/1/2024 - 12/31/2024)
Alerts for Environmental Surrogates (Flow and Temperature)
Date Knights Landing RST: Winter Chinook: Catch Index Knights Landing RST: Older Chinook: Catch Index Sacramento Trawls: Older Chinook: Catch Index Sacramento Beach Seines: Older Chinook: Catch Index Alert: Catch Index > 5 Alert: Catch Index 3 < X ≤ 5
2024-12-30     1.6 2.3    
2024-12-29            
2024-12-28            
2024-12-27     3.2 5.3 SacBeach 5.3 SacTrawl 3.2
2024-12-26     0      
2024-12-25            
2024-12-24            
2024-12-23 0 0 0.8 0    
2024-12-22 0 0        
2024-12-21 0 0        
2024-12-20 0 0 0 1.3    
2024-12-19 7.8 8.2     KNLOlder 8.2
KNLWinter 7.8
 
2024-12-18 5.5 6.9 0.8 0 KNLOlder 6.9
KNLWinter 5.5
 
2024-12-17            
2024-12-16     2.4 4.8   SacBeach 4.8
2024-12-15            
2024-12-14            
2024-12-13 0 0        
2024-12-12 0 0 0 0    
2024-12-11 1.0 1.0 0 0    
2024-12-10 0 0        
2024-12-09 0 0 0 0    
2024-12-08 0.5 0.5        
2024-12-07 0 0        
2024-12-06 0.7 1.4 0 1.6    
2024-12-05 1.2 1.2        
2024-12-04 1.3 1.3 0 0    
2024-12-03 0 0        
2024-12-02     0 2.0    
2024-12-01            
2024-11-30            
2024-11-29       1.6    
2024-11-28            
2024-11-27     15.2 3.0 SacTrawl 15.2  
2024-11-26     27.2   SacTrawl 27.2  
2024-11-25     21.6 4.0 SacTrawl 21.6 SacBeach 4.0
2024-11-24            
2024-11-23            
2024-11-22       0    
2024-11-21 0 0 0      
2024-11-20 0 0 0 0    
2024-11-19 0 0        
2024-11-18 0 0 0 0    
2024-11-17 0 0        
2024-11-16 0 0        
2024-11-15 0 0 0 0    
2024-11-14 0 0 0      
2024-11-13 0 0   0    
2024-11-12 0 0 0 0    
2024-11-11 0 0        
2024-11-10 0 0        
2024-11-09 0 0        
2024-11-08 0 0 0 0    
2024-11-07 0 0        
2024-11-06 0 0 0 0    
2024-11-05 0 0        
2024-11-04 0 0 0 0    
2024-11-03 0 0        
2024-11-02 0 0        
2024-11-01 0 0   0    
2024-10-31 0 0 0      
2024-10-30 0 0 0 0    
2024-10-29 0 0        
2024-10-28 0 0 0 0    
2024-10-27 0 0        
2024-10-26 0 0        
2024-10-25 0 0 0 0    
2024-10-24 0 0        
2024-10-23 0 0 0 0    
2024-10-22 0 0        
2024-10-21 0 0 0 0    
2024-10-20 0 0        
2024-10-19 0.5 0.5        
2024-10-18 0 0 0 0    
2024-10-17 0 0 0 0    
2024-10-16 0 0 0      
2024-10-15 0 0   0    
2024-10-14 0 0        
2024-10-13 0 0        
2024-10-12 0 0        
2024-10-11 0 0 0 0    
2024-10-10 0 0        
2024-10-09 0 0 0 0    
2024-10-08 0 0        
2024-10-07     0 0    
2024-10-06            
2024-10-05            
2024-10-04 0 0 0 0    
2024-10-03 0 0        
2024-10-02 0 0 0 0    
2024-10-01 0 0        
0 value indicates sampling occurred. Calculations generated by SacPAS. Data Courtesy of USFWS Lodi and CDFW via StreamNet.

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)

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

Daily Average Flow and Temperature Last 7 Days
Date Mill Creek (MLM): mean daily flow (cfs) Mill Creek (MLM): flow percent change Mill Creek (MLM): Alert Deer Creek (DCV): mean daily flow (cfs) Deer Creek (DCV): flow percent change Deer Creek (DCV): Alert Wilkins Slough (WLK): mean daily flow (cfs) Knights Landing RST: water temperature (f) WLK-KNL: Alert
5/20/2025 429.8 4.4% Flow>95cfs 215.4 -3.2% Flow>95cfs 7504.3    
5/19/2025 411.8 -1.1% Flow>95cfs 222.4 -4.3% Flow>95cfs 7701.5 51.6 WLK>7500cfs and KNL<56.3F
5/18/2025 416.3 -5.8% Flow>95cfs 232.4 -1.9% Flow>95cfs 7526.8 50.8 WLK>7500cfs and KNL<56.3F
5/17/2025 442.0 6.7% Flow>95cfs 237.0 -2.1% Flow>95cfs 7521.2 50.6 WLK>7500cfs and KNL<56.3F
5/16/2025 414.1 8.1% Flow>95cfs 242.0 -4.4% Flow>95cfs 8511.6 49.6 WLK>7500cfs and KNL<56.3F
5/15/2025 382.9 -1.7% Flow>95cfs 253.2 -0.3% Flow>95cfs 9858.2 48.9 WLK>7500cfs and KNL<56.3F
5/14/2025 389.4 -12.9% Flow>95cfs 254.1 -12.0% Flow>95cfs 10957.0 49.1 WLK>7500cfs and KNL<56.3F
Calculations generated by SacPAS. Data Courtesy of CDEC and CDFW via StreamNet.

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

Juvenile Sampling

Juvenile Sampling Summary for 05/14/2025-05/20/2025 (last 7 days) and 05/07/2025-05/13/2025 (previous 7 days)

Juvenile Sampling Summary for 05/14/2025-05/20/2025 (last 7 days) and 05/07/2025-05/13/2025 (previous 7 days)
Date RangeData ItemButte Creek Diversion and RSTTisdale Weir RSTKnights Landing RSTLower Feather River RSTLower Sacramento River RSTSacramento Trawls (@ Sherwood Harbor)Sacramento Beach SeinesChipps Island TrawlsMossdale Trawls
Date RangeData ItemButte Creek Diversion and RSTTisdale Weir RSTKnights Landing RSTLower Feather River RSTLower Sacramento River RSTSacramento Trawls (@ Sherwood Harbor)Sacramento Beach SeinesChipps Island TrawlsMossdale Trawls
05/14/2025-05/20/2025Min Sample Date2025-05-142025-05-142025-05-142025-05-152025-05-142025-05-15
05/14/2025-05/20/2025Max Sample Date2025-05-192025-05-192025-05-192025-05-202025-05-192025-05-15
05/14/2025-05/20/2025Days with Sampling660300
05/14/2025-05/20/2025Fall Chinook147902210
05/14/2025-05/20/2025Spring Chinook201080
05/14/2025-05/20/2025Winter Chinook000000
05/14/2025-05/20/2025LateFall Chinook100000
05/14/2025-05/20/2025Chinook (ad-clip)200000
05/14/2025-05/20/2025Steelhead (natural)100000
05/14/2025-05/20/2025Steelhead (ad-clip)100000
05/14/2025-05/20/2025Avg Flow (cfs)341.09705.28511.54756.918012.518012.517170.62041.1
05/14/2025-05/20/2025Avg Water Temp (F)50.148.165.265.266.265.5
05/14/2025-05/20/2025Avg Turbidity (NTU)17.32.213.5
05/07/2025-05/13/2025Min Sample Date2025-05-072025-05-072025-05-072025-05-072025-05-072025-05-082025-05-072025-05-08
05/07/2025-05/13/2025Max Sample Date2025-05-102025-05-132025-05-132025-05-092025-05-122025-05-132025-05-122025-05-13
05/07/2025-05/13/2025Days with Sampling47720200
05/07/2025-05/13/2025Fall Chinook351144331375118188
05/07/2025-05/13/2025Spring Chinook260000413
05/07/2025-05/13/2025Winter Chinook00000000
05/07/2025-05/13/2025LateFall Chinook42000000
05/07/2025-05/13/2025Chinook (ad-clip)732400000
05/07/2025-05/13/2025Steelhead (natural)03000000
05/07/2025-05/13/2025Steelhead (ad-clip)01000000
05/07/2025-05/13/2025Avg Flow (cfs)336.29516.47750.15031.216021.116021.115732.32041.4
05/07/2025-05/13/2025Avg Water Temp (F)18.750.947.849.265.665.664.266.8
05/07/2025-05/13/2025Avg Turbidity (NTU)16.220.42.57.927.6
source of Avg Flow (cfs)Butte Creek nr Chico (BCK)Colousa (COL)Wilkins Slough (WLK)Boyd's Landing (FSB)Verona (VON)Freeport (FPT)Freeport (FPT)Delta OutFlow (DTO)Vernalis (VNS)
source of Avg Water Temp (F)Butte CreekTisdale WeirKnights LandingLower Feather RiverLower Sacramento RiverHood (SRH)Hood (SRH)Chipps Island TrawlsVernalis (VNS)
source of Avg Turbidity (NTU)Butte CreekTisdale WeirKnights LandingLower Feather RiverLower Sacramento RiverSacramento TrawlsSacramento TrawlsChipps Island TrawlsMossdale Trawls
  • Butte Creek Diversion and RST: Preliminary data from CDFW via CalFish; subject to revision.
  • Tisdale Weir RST: Preliminary data from CDFW via CalFish and CDEC; subject to revision.
  • Knights Landing RST: Preliminary data from CDFW via CalFish and CDEC; subject to revision. Turbidity is a discrete measure. KNL measured in FTU which should be roughly equivalent to NTU.
  • Lower Feather River RST: Preliminary data from CDFW via CalFish; subject to revision.
  • Lower Sacramento River RST: Preliminary data from CDFW via CalFish; subject to revision.
  • 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.

Historical Migration Pattern for "Today"

Average Percent by 05/20, with 95%CI, of annual emigrating population for juveniles of each species of interest captured at the following locations and salvaged at SWP and CVP Delta facilities
Species Red Bluff Diversion Dam Tisdale RST Knights Landing RST Sac Trawl (Sherwood) Catch Index Chipps Island Trawl Catch Index Salvage
Chinook, LAD Winter-run, Unclipped 100.0%
(100.0%,100.0%)
BY: 2015 - 2023
100.0%
(100.0%,100.0%)
BY: 2015 - 2023
100.0%
(100.0%,100.0%)
BY: 2015 - 2023
100.0%
(100.0%,100.0%)
BY: 2015 - 2023
100.0%
(100.0%,100.0%)
BY: 2015 - 2023
100.0%
(100.0%,100.0%)
WY: 2015 - 2024
Chinook, LAD Spring-run, Unclipped 99.5%
(99.2%,99.9%)
BY: 2015 - 2023
100.0%
(100.0%,100.0%)
BY: 2015 - 2023
100.0%
(100.0%,100.0%)
BY: 2015 - 2023
100.0%
(99.9%,100.0%)
BY: 2015 - 2023
99.2%
(98.3%,100.1%)
BY: 2015 - 2023
91.7%
(80.3%,103.2%)
WY: 2015 - 2024
Steelhead, Unclipped (January-December) 28.2%
(13.3%,43.2%)
BY: 2015 - 2024
83.8%
(63.5%,104.0%)
BY: 2015 - 2024
78.5%
(60.4%,96.6%)
BY: 2015 - 2024
89.5%
(80.7%,98.3%)
BY: 2015 - 2024
88.5%
(80.4%,96.6%)
BY: 2015 - 2024
 
Chinook, DNA Winter-run, Unclipped (Water Year)           100.0%
(100.0%,100.0%)
WY: 2020 - 2024
Steelhead, Unclipped (Water Year)           92.9%
(85.9%,100.0%)
WY: 2015 - 2024
Calculations generated by SacPAS Migration Timing and Conditions by Cohort and Salvage Timing. Data Courtesy of USFWS, Red Bluff; CDFW via StreamNet and CDEC; USFWS, Lodi.

Delta STARS Estimates

Current estimates generated by the Delta STARS tool. STARS Predicted Survival, Travel-Time and Routing for Late-Fall Run and Winter Run Chinook. Delta STARS developed by USGS Quantitative Fisheries Ecology Section and deployed by SacPAS.

Delta STARS Survival and Routing Estimates
StockDateRouteParameterEstimateLower 80% Credible LimitUpper 80% Credible Limit
Winter Chinook2025-05-20OverallMedian Travel Time6.43076.13856.6376
Winter Chinook2025-05-20OverallSurvival0.00433659.0421e-50.0099494
Winter Chinook2025-05-20Sacramento RiverMedian Travel Time6.01266
Winter Chinook2025-05-20Sacramento RiverRouting Probability0.599380.564840.63246
Winter Chinook2025-05-20Sacramento RiverSurvival0.00412125.7124e-50.0094257
Winter Chinook2025-05-20Yolo BypassMedian Travel Time10.085911
Winter Chinook2025-05-20Yolo BypassRouting Probability000
Winter Chinook2025-05-20Yolo BypassSurvival0.359020.0332560.72131
Winter Chinook2025-05-20Sutter SloughMedian Travel Time6.07666
Winter Chinook2025-05-20Sutter SloughRouting Probability0.135720.114410.1579
Winter Chinook2025-05-20Sutter SloughSurvival0.00821951.2559e-40.01731
Winter Chinook2025-05-20Steamboat SloughMedian Travel Time5.77956
Winter Chinook2025-05-20Steamboat SloughRouting Probability0.136730.116450.15681
Winter Chinook2025-05-20Steamboat SloughSurvival0.00357554.0325e-50.0081654
Winter Chinook2025-05-20Interior DeltaMedian Travel Time9.457910
Winter Chinook2025-05-20Interior DeltaRouting Probability0.128170.102760.15505
Winter Chinook2025-05-20Interior DeltaSurvival0.00202061.1873e-50.0047431
Late-fall Chinook2025-05-20OverallMedian Travel Time11.5928.954815.823
Late-fall Chinook2025-05-20OverallSurvival0.403010.305840.50304
Late-fall Chinook2025-05-20Delta Cross ChannelMedian Travel TimeNANANA
Late-fall Chinook2025-05-20Delta Cross ChannelRouting Probability000
Late-fall Chinook2025-05-20Delta Cross ChannelSurvivalNANANA
Late-fall Chinook2025-05-20Georgiana SloughMedian Travel Time16.69311.48125.22
Late-fall Chinook2025-05-20Georgiana SloughRouting Probability0.27750.2170.382
Late-fall Chinook2025-05-20Georgiana SloughSurvival0.184380.0812050.35067
Late-fall Chinook2025-05-20Sacramento RiverMedian Travel Time9.79097.022614.476
Late-fall Chinook2025-05-20Sacramento RiverRouting Probability0.4580.35190.52
Late-fall Chinook2025-05-20Sacramento RiverSurvival0.534540.403140.65525
Late-fall Chinook2025-05-20Sutter and Steamboat SloughMedian Travel Time10.4657.342215.073
Late-fall Chinook2025-05-20Sutter and Steamboat SloughRouting Probability0.2660.23390.2941
Late-fall Chinook2025-05-20Sutter and Steamboat SloughSurvival0.409540.239040.5648

Loss&Salvage Predictor Estimates

Current estimates generated by the Loss and Salvage Predictor tool. Predicts loss and/or salvage of endangered steelhead and winter run Chinook salmon at the CVP and SWP pumping facilities at the southern end of the Sacramento-San Joaquin Delta. Available Decemer to mid-June.

plot Estimates of Winter-run Chinook Loss generated by Loss and Salvage Predictor tool
Estimates of Winter-run Chinook Loss generated by Loss and Salvage Predictor tool
plot Estimates of Steelhead Loss generated by Loss and Salvage Predictor tool
Estimates of Steelhead Loss generated by Loss and Salvage Predictor tool
Environmental Conditions, Loss and Salvage Predictor Input and Output
Parameter TokenParameter DescriptionWater YearWeekWeek TypeValue
temp.malWater Temperature °C, Mallard Island (MAL) from CDEC202533Data19.1
precipPrecipitation Inches, 5 day running sum, Stockton Fire Station (SFS) from CDEC202533Data0
om.sumOMR Flows CFS, sum of tidally-filtered discharge at Middle River and Bacon Island from USGS202533Data-1837
sacSacramento Flows CFS, Freeport (FPT) from CDEC202533Data18358
dccDCC Gate Status from BOR202533Dataclosed
sjrSan Joaquin River Flow CFS, Vernalis (VNS) from CDEC 202533Data2093
exportExports CFS, sum of Pumping Discharge at HRO and TRP from CDEC202533Data1462
steelhead.pwSteelhead Previous Week202533Data40.08
winter.pwWinter Chinook Previous Week202533Data0
temp.malWater Temperature °C, Mallard Island (MAL) from CDEC202534Forecast19.1
precipPrecipitation Inches, 5 day running sum, Stockton Fire Station (SFS) from CDEC202534Forecast0
om.sumOMR Flows CFS, sum of tidally-filtered discharge at Middle River and Bacon Island from USGS202534Forecast-1837
sacSacramento Flows CFS, Freeport (FPT) from CDEC202534Forecast18358
dccDCC Gate Status from BOR202534Forecastclosed
sjrSan Joaquin River Flow CFS, Vernalis (VNS) from CDEC 202534Forecast2093
exportExports CFS, sum of Pumping Discharge at HRO and TRP from CDEC202534Forecast1462
steelhead.pwSteelhead Previous Week202534Forecast9.34
winter.pwWinter Chinook Previous Week202534Forecast0
Fish, Loss and Salvage Predictor Input and Output
Parameter TokenParameter DescriptionWater YearWeekValue
Steelhead.LowPredicted Steelhead, Low %2025330
Steelhead.MedianPredicted Steelhead, Median %2025339
Steelhead.HighPredicted Steelhead, High %20253355
Winter.Run.LowPredicted Chinook Winter Run, Low %2025330
Winter.Run.MedianPredicted Chinook Winter Run, Median %2025330
Winter.Run.HighPredicted Chinook Winter Run, High %2025330
Steelhead.Observed.lossObserved Steelhead loss2025330
Winter.Run.Observed.lossObserved Chinook Winter Run loss2025330
Steelhead.Cumulative.lossObserved Steelhead Cumulative loss202533589
Winter.Run.Cumulative.lossObserved Chinook Winter Run Cumulative loss202533158
Steelhead.LowPredicted Steelhead, Low %2025340
Steelhead.MedianPredicted Steelhead, Median %2025343
Steelhead.HighPredicted Steelhead, High %20253455
Winter.Run.LowPredicted Chinook Winter Run, Low %2025340
Winter.Run.MedianPredicted Chinook Winter Run, Median %2025340
Winter.Run.HighPredicted Chinook Winter Run, High %2025340
Steelhead.Observed.lossObserved Steelhead loss202534NA
Winter.Run.Observed.lossObserved Chinook Winter Run loss202534NA
Steelhead.Cumulative.lossObserved Steelhead Cumulative loss202534589
Winter.Run.Cumulative.lossObserved Chinook Winter Run Cumulative loss202534158

Spring Surrogates

Spring-Run Chinook Salmon Hatchery Surrogate Summary Table, Water Year 2025
Type Hatchery Release Start Release End Race Total # of Fish Released # of CWT Fish Released Tag Codes Loss Threshold (0.25% of CWT Released) Confirmed Loss % Loss of CWT Number Released First Loss Last Loss Confirmed Loss CWT Tag Codes
Yearling Coleman NFH 2024-11-20 2024-11-20 Late-Fall 698,892 698,892050038, 050039, 050040, 050041, 050042, 050043, 050044, 052900, 053300, 053400, 053500 1747.23 1051.21 0.15% 2024-11-29 2025-04-05050038, 050039, 050040, 050041, 050042, 050043, 050044, 052900, 053300, 053400, 053500
Yearling Coleman NFH 2024-12-13 2024-12-13 Late-Fall 77,355 77,355053100 193.39 72.52 0.09% 2024-12-25 2025-01-12053100
Yearling Coleman NFH 2025-01-17 2025-01-17 Late-Fall 74,425 74,425053000 186.06 43.34 0.06% 2025-01-30 2025-04-04053000
Young-of-year Feather River Hatchery 2025-03-14 2025-03-14 Spring 961,411 476,741063233 1191.85 16.56 0.00% 2025-04-06 2025-04-06063233
Young-of-year Feather River Hatchery 2025-03-21 2025-03-21 Spring 962,741 475,831063230 1189.58 110.13 0.02% 2025-03-31 2025-05-02063230
Young-of-year Feather River Hatchery 2025-04-09 2025-04-09 Spring 1,012,800 504,304061537, 062012, 062884 1260.76 0.00 0.00%
Young-of-year Feather River Hatchery 2025-04-23 2025-04-24 Fall 1,505,055 376,122063265, 063195 940.31 0.00 0.00%
Young-of-year Coleman NFH 2025-04-15 2025-04-15 Fall 2,122,103 695,170056600, 056700, 056747, 056748, 056768, 056800 1737.93 0.00 0.00%
Young-of-year Coleman NFH 2025-04-28 2025-04-30 Fall 1,472,338 368,085056750, 056751, 056749, 056752 920.21 0.00 0.00%
Surrogate releases identified by SaMT and based on PA 3.7.4.5.7.

Single-Year Loss Thresholds

Single-Year Loss Thresholds

  • Natural Winter-Run Chinook Salmon (loss= 0.5% of JPE)
  • Natural Central Valley Steelhead (loss = 3000)

Loss Summary Table

Unclipped Chinook and Steelhead Loss Summary, Monitoring Period 2024-07-01 to 2025-06-30, max data date possible 2025-05-19
Data ItemDNA Winter-run ChinookLAD Winter-run ChinookNatural Steelhead
Loss Total Last 1-7 days (05/14/2025-05/20/2025)000
Loss Total Last 8-14 days (05/07/2025-05/13/2025)0040.08
Cumulative Loss Total (07/01/2024-06/30/2025)28.83158.36589.34
Cumulative Loss Percent of Threshold (07/01/2024-06/30/2025)5.83%NA19.64%
Single-Year Loss Threshold494.47NA3000

Natural DNA Winter-Run Chinook Salmon Loss Figures

graph loss Natural DNA Winter-Run Chinook Salmon
Natural DNA Winter-Run Chinook Salmon Loss Cumulative to Date with Single Year Loss Thresholds

Natural LAD Winter-Run Chinook Salmon Loss Figures

graph loss Natural Winter-Run Chinook Salmon
Natural LAD Winter-Run Chinook Salmon Loss Cumulative to Date with Single Year Loss Thresholds
graph loss Natural Winter-Run Chinook Salmon with WY2009-2018 history
Natural LAD Winter-Run Chinook Salmon Loss Cumulative to Date with WY2009-2018 history and Single Year Loss Thresholds
graph loss Natural Winter-Run Chinook Salmon with WY2009-2018 history
Natural LAD Winter-Run Chinook Salmon Loss Cumulative to Date with historical years and Single Year Loss Thresholds

Natural Central Valley Steelhead Loss Figures

graph loss Natural Central Valley Steelhead
Natural Central Valley Steelhead Loss Cumulative to Date with Single Year Loss Thresholds
graph Natural Central Valley Steelhead with WY2009-2018 history
Natural Central Valley Steelhead Loss Cumulative to Date with Historical Loss and Single Year Loss Thresholds
graph loss Natural Central Valley Steelhead with WY2009-2018 history
Natural Central Valley Steelhead Loss Cumulative to Date with Historical Loss and Single Year Loss Thresholds

Daily Loss Table

Unclipped Chinook and Steelhead Loss Daily, Monitoring Period 2024-07-01 to 2025-06-30
DateDNA Winter-run Chinook : Daily LossDNA Winter-run Chinook : Cum LossLAD Winter-run Chinook : Daily LossLAD Winter-run Chinook : Cum LossNatural Steelhead : Daily LossNatural Steelhead : Cum Loss
DateDNA Winter-run Chinook : Daily LossDNA Winter-run Chinook : Cum LossLAD Winter-run Chinook : Daily LossLAD Winter-run Chinook : Cum LossNatural Steelhead : Daily LossNatural Steelhead : Cum Loss
2025-05-19028.830158.360589.34
2025-05-18028.830158.360589.34
2025-05-17028.830158.360589.34
2025-05-16028.830158.360589.34
2025-05-15028.830158.360589.34
2025-05-14028.830158.360589.34
2025-05-13028.830158.360589.34
2025-05-12028.830158.360589.34
2025-05-11028.830158.365.44589.34
2025-05-10028.830158.3634.64583.9
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Data Notes

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

  1. Long-Term Operation of the Central Valley Project and State Water Project, Bay-Delta Office, USBR
  2. Long-Term Operation – Biological Assessment: Chapter 3 – Proposed Action, USBR
    • 3.7.4.5.3 Winter-Run Chinook Salmon Annual Loss Threshold, pg 3-62
    • 3.7.4.5.5 Steelhead Annual Threshold, pg 3-65
  3. Water condtions data courtesy of CDEC.
  4. 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".
  5. 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.
  6. 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
SacPAS Related Queries and Tools: