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
5/8/2025 517.5 4.3% Flow>95cfs 257.3 -3.2% Flow>95cfs 6107.0    
5/7/2025 496.2 0.1% Flow>95cfs 265.7 -3.3% Flow>95cfs 6836.0    
5/6/2025 495.8 -6.0% Flow>95cfs 274.8 -6.6% Flow>95cfs 7947.5    
5/5/2025 527.3 -7.2% Flow>95cfs 294.0 -10.9% Flow>95cfs 9256.2 49.8 WLK>7500cfs and KNL<56.3F
5/4/2025 568.1 1.7% Flow>95cfs 330.1 14.6% Flow>95cfs 10142.0 50.2 WLK>7500cfs and KNL<56.3F
5/3/2025 558.5 3.2% Flow>95cfs 288.1 -1.1% Flow>95cfs 10232.1 50.1 WLK>7500cfs and KNL<56.3F
5/2/2025 541.0 1.1% Flow>95cfs 291.4 -2.0% Flow>95cfs 10042.8 50.1 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 05/02/2025-05/08/2025 (last 7 days) and 04/25/2025-05/01/2025 (previous 7 days)

Juvenile Sampling Summary for 05/02/2025-05/08/2025 (last 7 days) and 04/25/2025-05/01/2025 (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
05/02/2025-05/08/2025Min Sample Date2025-05-022025-05-022025-05-022025-05-052025-05-02
05/02/2025-05/08/2025Max Sample Date2025-05-082025-05-052025-05-072025-05-082025-05-08
05/02/2025-05/08/2025Days with Sampling44020
05/02/2025-05/08/2025Fall Chinook29524555164
05/02/2025-05/08/2025Spring Chinook53120157
05/02/2025-05/08/2025Winter Chinook00000
05/02/2025-05/08/2025LateFall Chinook00000
05/02/2025-05/08/2025Chinook (ad-clip)1016000
05/02/2025-05/08/2025Steelhead (natural)00000
05/02/2025-05/08/2025Steelhead (ad-clip)00000
05/02/2025-05/08/2025Avg Flow (cfs)384.39746.48651.95599.720143.320143.320117.62326.8
05/02/2025-05/08/2025Avg Water Temp (F)17.250.164.464.463.465.6
05/02/2025-05/08/2025Avg Turbidity (NTU)14.819.816.3
04/25/2025-05/01/2025Min Sample Date2025-04-252025-04-252025-04-252025-04-282025-04-292025-04-282025-04-25
04/25/2025-05/01/2025Max Sample Date2025-05-012025-05-012025-04-272025-04-302025-05-012025-05-012025-04-26
04/25/2025-05/01/2025Days with Sampling7730200
04/25/2025-05/01/2025Fall Chinook050120312297839
04/25/2025-05/01/2025Spring Chinook013112402427
04/25/2025-05/01/2025Winter Chinook0000000
04/25/2025-05/01/2025LateFall Chinook0010000
04/25/2025-05/01/2025Chinook (ad-clip)02460000
04/25/2025-05/01/2025Steelhead (natural)1000000
04/25/2025-05/01/2025Steelhead (ad-clip)0000000
04/25/2025-05/01/2025Avg Flow (cfs)462.48808.47805.16171.521336.521336.525515.62255.6
04/25/2025-05/01/2025Avg Water Temp (F)16.148.545.060.860.862.063.2
04/25/2025-05/01/2025Avg Turbidity (NTU)14.722.22.519.5
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 05/08, 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
99.9%
(99.7%,100.1%)
BY: 2015 - 2023
99.9%
(99.7%,100.1%)
WY: 2015 - 2024
Chinook, LAD Spring-run, Unclipped 97.9%
(95.7%,100.1%)
BY: 2015 - 2023
99.9%
(99.9%,100.0%)
BY: 2015 - 2023
99.7%
(99.1%,100.2%)
BY: 2015 - 2023
98.6%
(97.3%,99.9%)
BY: 2015 - 2023
92.8%
(88.6%,97.0%)
BY: 2015 - 2023
75.7%
(56.5%,94.9%)
WY: 2015 - 2024
Steelhead, Unclipped (January-December) 20.2%
(8.5%,31.9%)
BY: 2015 - 2024
78.9%
(56.9%,100.9%)
BY: 2015 - 2024
71.6%
(51.4%,91.9%)
BY: 2015 - 2024
84.3%
(73.6%,94.9%)
BY: 2015 - 2024
78.6%
(68.6%,88.7%)
BY: 2015 - 2024
 
Chinook, DNA Winter-run, Unclipped (Water Year)           100.0%
(100.0%,100.0%)
WY: 2020 - 2024
Steelhead, Unclipped (Water Year)           85.7%
(75.8%,95.7%)
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 Chinook2025-05-07OverallMedian Travel Time6.49966.25976.7706
Winter Chinook2025-05-07OverallSurvival0.0292170.00510530.063188
Winter Chinook2025-05-07Sacramento RiverMedian Travel Time6.0666
Winter Chinook2025-05-07Sacramento RiverRouting Probability0.59730.562340.63214
Winter Chinook2025-05-07Sacramento RiverSurvival0.0297090.00415240.064021
Winter Chinook2025-05-07Yolo BypassMedian Travel Time10.071911
Winter Chinook2025-05-07Yolo BypassRouting Probability000
Winter Chinook2025-05-07Yolo BypassSurvival0.430590.118970.71731
Winter Chinook2025-05-07Sutter SloughMedian Travel Time6.10667
Winter Chinook2025-05-07Sutter SloughRouting Probability0.135430.11310.16132
Winter Chinook2025-05-07Sutter SloughSurvival0.0454680.00678170.10107
Winter Chinook2025-05-07Steamboat SloughMedian Travel Time5.87156
Winter Chinook2025-05-07Steamboat SloughRouting Probability0.13740.116290.15889
Winter Chinook2025-05-07Steamboat SloughSurvival0.0270.00267730.065777
Winter Chinook2025-05-07Interior DeltaMedian Travel Time9.591910
Winter Chinook2025-05-07Interior DeltaRouting Probability0.129870.103050.15715
Winter Chinook2025-05-07Interior DeltaSurvival0.0127459.794e-40.030793
Late-fall Chinook2025-05-07OverallMedian Travel Time11.768.983216.276
Late-fall Chinook2025-05-07OverallSurvival0.402030.29860.49773
Late-fall Chinook2025-05-07Delta Cross ChannelMedian Travel TimeNANANA
Late-fall Chinook2025-05-07Delta Cross ChannelRouting Probability000
Late-fall Chinook2025-05-07Delta Cross ChannelSurvivalNANANA
Late-fall Chinook2025-05-07Georgiana SloughMedian Travel Time16.84711.65926.434
Late-fall Chinook2025-05-07Georgiana SloughRouting Probability0.2770.2190.382
Late-fall Chinook2025-05-07Georgiana SloughSurvival0.187010.0780150.3445
Late-fall Chinook2025-05-07Sacramento RiverMedian Travel Time9.94047.028114.893
Late-fall Chinook2025-05-07Sacramento RiverRouting Probability0.4580.36190.521
Late-fall Chinook2025-05-07Sacramento RiverSurvival0.537960.390910.64796
Late-fall Chinook2025-05-07Sutter and Steamboat SloughMedian Travel Time10.4267.476415.848
Late-fall Chinook2025-05-07Sutter and Steamboat SloughRouting Probability0.2640.2350.293
Late-fall Chinook2025-05-07Sutter and Steamboat SloughSurvival0.411230.242080.57886

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 CDEC202531Data17.4
precipPrecipitation Inches, 5 day running sum, Stockton Fire Station (SFS) from CDEC202531Data0.21
om.sumOMR Flows CFS, sum of tidally-filtered discharge at Middle River and Bacon Island from USGS202531Data-2217
sacSacramento Flows CFS, Freeport (FPT) from CDEC202531Data20719
dccDCC Gate Status from BOR202531Dataclosed
sjrSan Joaquin River Flow CFS, Vernalis (VNS) from CDEC 202531Data2317
exportExports CFS, sum of Pumping Discharge at HRO and TRP from CDEC202531Data2009
steelhead.pwSteelhead Previous Week202531Data2.72
winter.pwWinter Chinook Previous Week202531Data0
temp.malWater Temperature °C, Mallard Island (MAL) from CDEC202532Forecast17.4
precipPrecipitation Inches, 5 day running sum, Stockton Fire Station (SFS) from CDEC202532Forecast0.21
om.sumOMR Flows CFS, sum of tidally-filtered discharge at Middle River and Bacon Island from USGS202532Forecast-2217
sacSacramento Flows CFS, Freeport (FPT) from CDEC202532Forecast20719
dccDCC Gate Status from BOR202532Forecastclosed
sjrSan Joaquin River Flow CFS, Vernalis (VNS) from CDEC 202532Forecast2317
exportExports CFS, sum of Pumping Discharge at HRO and TRP from CDEC202532Forecast2009
steelhead.pwSteelhead Previous Week202532Forecast2.72
winter.pwWinter Chinook Previous Week202532Forecast0
Fish, Loss and Salvage Predictor Input and Output
Parameter TokenParameter DescriptionWater YearWeekValue
Steelhead.LowPredicted Steelhead, Low %2025310
Steelhead.MedianPredicted Steelhead, Median %2025313
Steelhead.HighPredicted Steelhead, High %20253155
Winter.Run.LowPredicted Chinook Winter Run, Low %2025310
Winter.Run.MedianPredicted Chinook Winter Run, Median %2025310
Winter.Run.HighPredicted Chinook Winter Run, High %20253113
Steelhead.Observed.lossObserved Steelhead loss20253125
Winter.Run.Observed.lossObserved Chinook Winter Run loss2025310
Steelhead.Cumulative.lossObserved Steelhead Cumulative loss202531549
Winter.Run.Cumulative.lossObserved Chinook Winter Run Cumulative loss202531158
Steelhead.LowPredicted Steelhead, Low %2025320
Steelhead.MedianPredicted Steelhead, Median %2025323
Steelhead.HighPredicted Steelhead, High %20253255
Winter.Run.LowPredicted Chinook Winter Run, Low %2025320
Winter.Run.MedianPredicted Chinook Winter Run, Median %2025320
Winter.Run.HighPredicted Chinook Winter Run, High %2025323
Steelhead.Observed.lossObserved Steelhead loss202532NA
Winter.Run.Observed.lossObserved Chinook Winter Run loss202532NA
Steelhead.Cumulative.lossObserved Steelhead Cumulative loss202532549
Winter.Run.Cumulative.lossObserved Chinook Winter Run Cumulative loss202532158

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 2025-05-07
Data ItemDNA Winter-run ChinookLAD Winter-run ChinookNatural Steelhead
Loss Total Last 1-7 days (05/02/2025-05/08/2025)0019.54
Loss Total Last 8-14 days (04/25/2025-05/01/2025)005.44
Cumulative Loss Total (07/01/2024-06/30/2025)28.83158.36549.26
Cumulative Loss Percent of Threshold (07/01/2024-06/30/2025)5.83%NA18.31%
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
2025-05-07028.830158.360549.26
2025-05-06028.830158.360549.26
2025-05-05028.830158.362.72549.26
2025-05-04028.830158.365.44546.54
2025-05-03028.830158.362.72541.1
2025-05-02028.830158.368.66538.38
2025-05-01028.830158.362.72529.72
2025-04-30028.830158.360527
2025-04-29028.830158.362.72527
2025-04-28028.830158.360524.28
2025-04-27028.830158.360524.28
2025-04-26028.830158.360524.28
2025-04-25028.830158.360524.28
2025-04-24028.830158.360524.28
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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: