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Hatchery Chinook Loss Tables of Confirmed and Unconfirmed CWT and CWT Releases, 10/1/2023 to 9/30/2024


Analysis & Queries: Salvage and Loss Summary || Delta Loss || Delta Salvage || Salvage Timing || Hatchery Chinook Loss Tables and CWT Releases || Salvage and Loss Detail Table

View WY:

Jump to Chinook Tables <> Confirmed Hatchery Loss <> Mutiple Releases Confirmed Hatchery Loss <> Unconfirmed Hatchery Loss <> Hatchery Releases of Interest

Generated: 26 Feb 2024 08:15:08 PST.
Preliminary data from Salvage and CWT Database (CDFW Bay Delta Region); subject to revision.

Confirmed Hatchery (Adipose-Fin Clipped) Chinook Salmon Loss at the SWP & CVP Delta Fish Facitilities, 10/1/2023 to 9/30/2024
Data through 2024-02-21

Release Start Release End CWT Tag Race Hatchery Release Site Release Type Loss CWT
Number
Released
% CWT Marked of
Total
Number
Released
% Loss of
CWT
Number
Released
First Loss Last Loss Confirmed Loss CWT Tagcodes
2023-12-18 2023-12-18 Late-Fall Coleman NFH Battle Creek at CNFH Production 510.150 942678100.0 0.054 2023-12-30 2024-02-11050045, 050046, 050047, 056687, 056688, 056728, 056729, 056730, 056731, 056732, 056733, 056734, 056735, 056736
2023-12-22 2023-12-22 Late-Fall Coleman NFH Battle Creek at CNFH Experimental 36.835 60764100.0 0.061 2024-01-09 2024-02-06056689
2023-12-29 2023-12-29 Late-Fall Coleman NFH Battle Creek at CNFH Experimental 31.746 71049100.0 0.045 2024-01-10 2024-02-10056690
2024-01-11 2024-01-11 Late-Fall Coleman NFH Battle Creek at CNFH Experimental 75.694 67018100.0 0.113 2024-01-24 2024-02-06056691
  1. Click on a column header to sort the table by that column.
  2. Number released with the adipose-fin clipped and a coded-wire tag (CWT).
  3. % Loss of Number Released = (Confirmed Loss/Number Released)*100.
  4. Chinook outside of the length-at-date criteria (Delta model) are not reported.
  5. The following CWT Tag Codes with confirmed recovery were used for more than 1 release group (release date, hatchery, production, race combination); the tag codes have been excluded from the table. In this dataset, there is no way to differentiate which release group was recovered if a CWT Tag Code is used for more than one. Please refer to the next table Multiple Release Groups for details.
    • 062945
    • 062946

Multiple Release Groups Confirmed Hatchery (Adipose-Fin Clipped) Chinook Salmon Loss at the SWP & CVP Delta Fish Facitilities, 10/1/2023 to 9/30/2024
Data through 2024-02-21

Confirmed Loss CWT Tagcodes Loss Total CWT
Number
Released
% CWT Marked of
Total
Number
Released
% Loss of
CWT
Number
Released
First Loss Last Loss CWT Number Released Release Start Release End CWT Tag Race Hatchery Release Site Release Type
062945 25.956 4477 100.0 1.160 2024-01-11 2024-02-09 2000 2023-08-31 2023-08-31 Spring SJ Restoration SCARF San Joaquin River at Friant Bridge Experimental
2477 2023-12-06 2023-12-06 Spring SJ Restoration SCARF San Joaquin River at Highway 140 SJRRP
062946 8.660 1466 100.0 1.181 2024-01-14 2024-02-09 406 2023-08-31 2023-08-31 Spring SJ Restoration SCARF San Joaquin River at Friant Bridge Experimental
1060 2023-12-06 2023-12-06 Spring SJ Restoration SCARF San Joaquin River at Highway 140 SJRRP
  1. Number released with the adipose-fin clipped and a coded-wire tag (CWT).
  2. % Loss of Number Released = (Confirmed Loss/Number Released)*100.
  3. Chinook outside of the length-at-date criteria (Delta model) are not reported.

Unconfirmed Hatchery (Adipose-Fin Clipped) Chinook Salmon Loss at the SWP & CVP Delta Fish Facitilities, 10/1/2023 to 9/30/2024
Data through 2024-02-21

Facility Loss
SWP4.330
CVPNA
  1. Adipose-fin clipped Chinook was observed during fish count, but tag code could not be determined (e.g., damaged tag, lost tag, no tag, or Chinook released).

Hatchery (Adipose-Fin Clipped) Chinook Salmon CWT Releases of Interest, 2023/2024, with no confirmed Delta Loss reported
Data through 2024-02-21

Release Start Release End CWT Tag Race Hatchery Release Site Release Type CWT
Number
Released
% CWT Marked
of Total Number Released
CWT Tagcodes
2024-02-16 2024-02-16 Winter Livingston Stone NFH Sacramento River at John F. Reginato River Access Production 365893 100.0050036, 056499, 056501, 056502, 056503, 056504, 056724, 056725
2024-02-14 2024-02-14 Spring SJ Restoration SCARF San Joaquin River at Highway 140 SJRRP 53446 100.0061939
2024-01-19 2024-01-19 Winter Livingston Stone NFH Sacramento River at John F. Reginato River Access Production 227527 100.0050033, 050034, 050035
2023-12-28 2023-12-28 Winter Livingston Stone NFH Sacramento River at John F. Reginato River Access Production 150654 100.0050031, 050032
2023-06-24 2023-06-24 Fall Feather River Hatchery San Francisco Bay at Brickyard Cove Production 201432 100.0060022
2023-06-21 2023-06-21 Fall Nimbus Hatchery Conoco San Pablo Bay Production 197688 25.0060027
2023-06-12 2023-06-12 Fall Feather River Hatchery San Francisco Bay Estuary and Ocean Science Center at Tiburon Production 249710 24.7060016, 060017, 060018
2023-06-11 2023-06-11 Fall Mokelumne Hatchery San Francisco Bay at Point San Quentin Production 195000 25.0060659, 063026
2023-06-10 2023-06-10 Fall Nimbus Hatchery San Francisco Bay Estuary and Ocean Science Center at Tiburon Production 168289 25.0060024
2023-06-09 2023-06-09 Fall Nimbus Hatchery Conoco San Pablo Bay Production 198924 25.0060025, 061568
2023-06-07 2023-06-07 Fall Feather River Hatchery Conoco San Pablo Bay Production 190717 25.0061070, 061550
2023-06-03 2023-06-03 Fall Feather River Hatchery Mare Island at San Pablo Bay Production 167989 25.0060010, 060012
2023-06-03 2023-06-03 Fall Mokelumne Hatchery Pillar Point Harbor Production 53750 25.0060031
2023-06-01 2023-06-01 Fall Mokelumne Hatchery Monterey Bay at Monterey Harbor Production 160000 100.0060029
2023-06-01 2023-06-01 Fall Nimbus Hatchery Mare Island at San Pablo Bay Production 167859 25.0060023
2023-05-31 2023-05-31 Fall Feather River Hatchery Mare Island at San Pablo Bay Production 168843 25.0060013, 060015
2023-05-31 2023-05-31 Fall Mokelumne Hatchery Monterey Bay at Santa Cruz Wharf Production 160000 100.0060030
2023-05-30 2023-05-30 Fall Mokelumne Hatchery San Francisco Bay at Fort Baker Production 150000 25.0061290, 063030
2023-05-29 2023-05-29 Fall Mokelumne Hatchery San Francisco Bay at Fort Baker Production 125000 25.0063029
2023-05-27 2023-05-27 Fall Mokelumne Hatchery Pillar Point Harbor Production 62500 25.0060031
2023-05-26 2023-05-26 Fall Feather River Hatchery San Francisco Bay Estuary and Ocean Science Center at Tiburon Production 168122 25.0060011, 060014
2023-05-24 2023-05-24 Fall Feather River Hatchery Conoco San Pablo Bay Production 254755 25.0060007, 060008, 060009
2023-05-22 2023-05-22 Fall Nimbus Hatchery Conoco San Pablo Bay Production 216392 25.0060026, 068740
2023-05-21 2023-05-21 Fall Mokelumne Hatchery Pillar Point Harbor Production 71250 25.0060031
2023-05-18 2023-05-18 Fall Merced Fish Facility San Joaquin River at Sherman Island Net Pen Production 107187 100.0060574, 061553
2023-05-17 2023-05-17 Fall Mokelumne Hatchery San Joaquin River at Sherman Island Net Pen Production 110000 25.0063009
2023-05-16 2023-05-16 Fall Nimbus Hatchery Lower American River at Sunrise Boat Ramp Production 213847 25.0060477
2023-05-15 2023-05-15 Fall Mokelumne Hatchery San Francisco Bay at Fort Baker Production 122500 25.0063028
2023-05-13 2023-05-13 Fall Mokelumne Hatchery San Francisco Bay at Fort Baker Production 105000 25.0063027
2023-05-11 2023-05-11 Fall Feather River Hatchery San Francisco Bay Estuary and Ocean Science Center at Tiburon Production 257928 25.6060973
2023-05-10 2023-05-10 Fall Mokelumne Hatchery San Joaquin River at Sherman Island Net Pen Production 110000 25.0063008
2023-05-09 2023-05-09 Fall Mokelumne Hatchery San Joaquin River at Sherman Island Direct Production 110000 25.0063007
2023-05-08 2023-05-08 Fall Feather River Hatchery Conoco San Pablo Bay Production 252261 25.0060019
2023-05-08 2023-05-08 Fall Merced Fish Facility San Joaquin River at Sherman Island Net Pen Production 61922 100.0061553
2023-05-04 2023-05-04 Fall Coleman NFH Battle Creek at CNFH Production 159936 25.0056719, 056720
2023-05-04 2023-05-04 Fall Merced Fish Facility San Joaquin River at Sherman Island Net Pen Production 39333 100.0061934
2023-05-03 2023-05-03 Fall Mokelumne Hatchery San Joaquin River at Sherman Island Net Pen Production 112500 25.0063006
2023-05-01 2023-05-02 Fall Feather River Hatchery Mare Island at San Pablo Bay Production 250631 25.0060020
2023-04-24 2023-04-24 Winter Coleman NFH North Fork Battle Creek, Manton, CA Jumpstart 77416 100.0056515, 056541
2023-04-24 2023-04-25 Fall Coleman NFH Battle Creek at CNFH Production 2348768 25.0056696, 056697, 056698, 056699, 056701, 056702, 056703, 056704, 056705, 056706, 056707, 056708, 056709, 056710, 056711, 056712, 056713, 056714, 056715, 056716, 056717, 056718
2023-04-21 2023-04-21 Fall Feather River Hatchery Feather River at Boyd's Pump Boat Ramp Production 252116 25.0060021
2023-04-21 2023-04-21 Fall Feather River Hatchery Feather River at Gridley Boat Launch Production 126074 25.0062883
2023-04-18 2023-04-18 Fall Mokelumne Hatchery San Joaquin River at Sherman Island Net Pen Production 110000 25.0063003
2023-04-11 2023-04-11 Spring Feather River Hatchery Feather River at Boyd's Pump Boat Ramp Production 450885 100.0062081, 062308, 062369, 063065
2023-04-11 2023-04-11 Spring Feather River Hatchery Feather River at Gridley Boat Launch Production 430995 100.0060791, 063066
2023-04-11 2023-04-11 Fall Feather River Hatchery Feather River at Gridley Boat Launch Production 126934 25.0060660
2023-03-29 2023-03-29 Fall Coleman NFH Battle Creek at CNFH Production 400897 25.0056675, 056692, 056693, 056694, 056695
2023-03-24 2023-03-24 Spring Feather River Hatchery Feather River at Boyd's Pump Boat Ramp Production 362343 100.0063064
2023-03-24 2023-03-24 Spring Feather River Hatchery Feather River at Gridley Boat Launch Production 366243 100.0063063
2023-03-17 2023-03-17 Winter Coleman NFH North Fork Battle Creek, Manton, CA Jumpstart 97134 100.0056489, 056498
2023-03-16 2023-03-16 Spring Feather River Hatchery Feather River at Boyd's Pump Boat Ramp Production 366267 100.0063061
2023-03-16 2023-03-16 Spring Feather River Hatchery Feather River at Gridley Boat Launch Production 365190 100.0063062
2023-03-16 2023-03-16 Spring SJ Restoration SCARF Eastside Bypass at El Nido Road SJRRP 139784 100.0063169
2023-03-15 2023-03-15 Fall Feather River Hatchery Sutter Bypass, Sacramento Ave Experimental 8601 3.2NA
2023-03-01 2023-03-01 Winter Livingston Stone NFH Sacramento River at John F. Reginato River Access Production 299866 100.0055892, 056586, 056587, 056588
2023-02-23 2023-02-23 Spring SJ Restoration SCARF San Joaquin River at Fremont Ford Bridge SJRRP 50932 100.0063170
2023-01-26 2023-01-27 Winter Livingston Stone NFH Sacramento River at John F. Reginato River Access Production 432458 100.0056521, 056522, 056523, 056524, 056586
2023-01-13 2023-01-13 Late-Fall Coleman NFH Battle Creek at CNFH Experimental 60712 100.0056493
  1. Click on a column header to sort the table by that column.

Data Set Notes:

  1. SacPAS obtains salvage data from Fish Salvage Monitoring, CDFW Bay Delta Region
    • Salvage Database, https://wildlife.ca.gov/Conservation/Delta/Salvage-Monitoring
    • WY2012: Specialized reporting of CWT data for Chinook by CDFW started.
    • WY2020: Specialized reporting of DNA Race information for Chinook by CDFW started. Currently available in "SacPAS Salvage and Loss Detail Table" query.
    • SacPAS uses loss estimation methods as detailed in "Chinook Salmon Loss Estimation for Skinner Delta Fish Protective Facility and Tracy Fish Collection Facility, 7/9/2018" https://filelib.wildlife.ca.gov/Public/salvage/Salmon%20loss%20estimation.docx

    • 20 April 2018: Due to an update strategy based on unique row identifiers, the SacPAS database occasionally accumulated duplicate rows of salvage data at the SWP and CVP. This resulted in salvage and loss numbers inflated by approximately 20% during the season (February-April, 2018). We have improved our data assimilation process and now report salvage and loss in line with the numbers from CDFW-Bay Delta Region. We would like to thank Geir Aasen at CDFW for his assistance in identifying and resolving this issue with SacPAS salvage and loss calculations.
  2. SacPAS obtains Export data from two sources:
    • Acrefeet in the database posted to Salvage Database, https://wildlife.ca.gov/Conservation/Delta/Salvage-Monitoring
    • CFS from the CDEC sites HRO (for SWP) and TRP (for CVP)
  3. The Delta Outflow, Sacramento River and San Joaquin River flow data are obtained from two sources:
    • CFS from CDEC for FPT (for Sacramento River), VNS (for San Joaquin River), DTO (for Delta Outflow)
    • CFS for FPT+SRWTP, VNS, and NDOI from DWR operations control documents posted to https://water.ca.gov/Programs/State-Water-Project/Operations-and-Maintenance/Operations-and-Delta-Status - 30 day PDF window loaded daily
  4. The Cross Channel Status is obtained from the log and change order PDFs located at https://www.usbr.gov/mp/cvo/ - The Cross Channel condition is checked daily via the "Latest Cross Channel Gate Order", and updates are extracted from the PDF log which is published at https://www.usbr.gov/mp/cvo/
  5. On a daily basis, SacPAS calculates the OMR tidally filtered flow and the OMR index based on methods as described in:
    California Department of Water Resources (DWR). 2017. Old and Middle River Flow Review: USGS Gauge Readings versus Index Calculations for 2011 through 2017. Online: https://cawaterlibrary.net/wp-content/uploads/2017/12/4-Old-and-Middle-River-Flow-Review.pdf
    See OMR Tidally Filtered Flow and Index Calculations as performed by SacPAS for full details. SacPAS calculated OMR Index is available for 28 October 2016 to the present.

Citation
Columbia Basin Research, University of Washington. (2024). SacPAS Hatchery Chinook Loss Tables of Confirmed and Unconfirmed CWT and CWT Releases. Available from www.cbr.washington.edu/sacramento/data/delta_cwt_tables.html
Generated: 26 Feb 2024 08:15:08 PST. www.cbr.washington.edu/sacramento/data/.

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SacPAS: Central Valley Prediction & Assessment of Salmon, University of Washington, Columbia Basin Research, www.cbr.washington.edu/sacramento/