Juvenile Salmonid Collection System (JSCS) Pilot Project Fish and Environmental Data – McCloud River and Shasta Reservoir (2022–2025)
The California Department of Water Resources (DWR) conducted the Juvenile Salmonid Collection System (JSCS) Pilot Project from 2022 — 2025 to test new methods in fish capture and collect juvenile winter-run Chinook Salmon in the McCloud River (Wintu name: Winnemem Waywaket) as part of the greater effort to assess the feasibility of Chinook Salmon reintroduction above Shasta Dam. The goal of the JSCS Pilot Project was to test the performance of the JSCS structure in the McCloud Arm of Shasta Reservoir and to design, fabricate, and test configurations of the JSCS fish trap. DWR tested initial structural components of the JSCS in Shasta Reservoir in 2022 and operated the complete system at five sites across the reservoir–riverine interface in the McCloud Arm of Shasta Reservoir 2023 — 2024. Based on the results for those years, DWR redesigned the trap (JSCS V2) and deployed it in riverine conditions downstream of the McCloud Bridge Campground between September 30 — December 1, 2025. This dataset summarizes the data collected for the pilot study including environmental data collected on and around the JSCS fish trap, structural performance data for the JSCS fish trap, and fish capture data from the JSCS fish trap.
Data files
| Data title and description | Access data | File details | Last updated |
|---|---|---|---|
JSCS 2023-2025 Temperature Buoys Dataset The California Department of Water Resources (DWR) conducted the Juvenile Salmonid Collection System (JSCS) Pilot Project from 2022 — 2025 to test new methods in fish capture and collect juvenile winter-run Chinook Salmon in the McCloud River (Wintu name: Winnemem Waywaket) as part of the greater effort to assess the feasibility of Chinook Salmon reintroduction above Shasta Dam. The goal of the JSCS Pilot Project was to test the performance of the JSCS structure in the McCloud Arm of Shasta Reservoir and to design, fabricate, and test configurations of the JSCS fish trap. DWR tested initial structural components of the JSCS in Shasta Reservoir in 2022 and operated the complete system at five sites across the reservoir–riverine interface in the McCloud Arm of Shasta Reservoir 2023 — 2024. Based on the results for those years, DWR redesigned the trap (JSCS V2) and deployed it in riverine conditions downstream of the McCloud Bridge Campground between September 30 — December 1, 2025. This dataset summarizes the data collected for the pilot study including environmental data collected on and around the JSCS fish trap, structural performance data for the JSCS fish trap, and fish capture data from the JSCS fish trap. | Download | CSV | 03/18/26 |
JSCS 2023 – 2025 EXO Dataset The California Department of Water Resources (DWR) conducted the Juvenile Salmonid Collection System (JSCS) Pilot Project from 2022 — 2025 to test new methods in fish capture and collect juvenile winter-run Chinook Salmon in the McCloud River (Wintu name: Winnemem Waywaket) as part of the greater effort to assess the feasibility of Chinook Salmon reintroduction above Shasta Dam. The goal of the JSCS Pilot Project was to test the performance of the JSCS structure in the McCloud Arm of Shasta Reservoir and to design, fabricate, and test configurations of the JSCS fish trap. DWR tested initial structural components of the JSCS in Shasta Reservoir in 2022 and operated the complete system at five sites across the reservoir–riverine interface in the McCloud Arm of Shasta Reservoir 2023 — 2024. Based on the results for those years, DWR redesigned the trap (JSCS V2) and deployed it in riverine conditions downstream of the McCloud Bridge Campground between September 30 — December 1, 2025. This dataset summarizes the data collected for the pilot study including environmental data collected on and around the JSCS fish trap, structural performance data for the JSCS fish trap, and fish capture data from the JSCS fish trap. | Download | CSV | 03/18/26 |
JSCS 2023-2025 Fish Catch Dataset The California Department of Water Resources (DWR) conducted the Juvenile Salmonid Collection System (JSCS) Pilot Project from 2022 — 2025 to test new methods in fish capture and collect juvenile winter-run Chinook Salmon in the McCloud River (Wintu name: Winnemem Waywaket) as part of the greater effort to assess the feasibility of Chinook Salmon reintroduction above Shasta Dam. The goal of the JSCS Pilot Project was to test the performance of the JSCS structure in the McCloud Arm of Shasta Reservoir and to design, fabricate, and test configurations of the JSCS fish trap. DWR tested initial structural components of the JSCS in Shasta Reservoir in 2022 and operated the complete system at five sites across the reservoir–riverine interface in the McCloud Arm of Shasta Reservoir 2023 — 2024. Based on the results for those years, DWR redesigned the trap (JSCS V2) and deployed it in riverine conditions downstream of the McCloud Bridge Campground between September 30 — December 1, 2025. This dataset summarizes the data collected for the pilot study including environmental data collected on and around the JSCS fish trap, structural performance data for the JSCS fish trap, and fish capture data from the JSCS fish trap. | Download | CSV | 03/18/26 |
JSCS 2023-2025 Fish Forklength Dataset The California Department of Water Resources (DWR) conducted the Juvenile Salmonid Collection System (JSCS) Pilot Project from 2022 — 2025 to test new methods in fish capture and collect juvenile winter-run Chinook Salmon in the McCloud River (Wintu name: Winnemem Waywaket) as part of the greater effort to assess the feasibility of Chinook Salmon reintroduction above Shasta Dam. The goal of the JSCS Pilot Project was to test the performance of the JSCS structure in the McCloud Arm of Shasta Reservoir and to design, fabricate, and test configurations of the JSCS fish trap. DWR tested initial structural components of the JSCS in Shasta Reservoir in 2022 and operated the complete system at five sites across the reservoir–riverine interface in the McCloud Arm of Shasta Reservoir 2023 — 2024. Based on the results for those years, DWR redesigned the trap (JSCS V2) and deployed it in riverine conditions downstream of the McCloud Bridge Campground between September 30 — December 1, 2025. This dataset summarizes the data collected for the pilot study including environmental data collected on and around the JSCS fish trap, structural performance data for the JSCS fish trap, and fish capture data from the JSCS fish trap. | Download | CSV | 03/18/26 |
JSCS 2023-2025 Efficiency Trials Dataset The California Department of Water Resources (DWR) conducted the Juvenile Salmonid Collection System (JSCS) Pilot Project from 2022 — 2025 to test new methods in fish capture and collect juvenile winter-run Chinook Salmon in the McCloud River (Wintu name: Winnemem Waywaket) as part of the greater effort to assess the feasibility of Chinook Salmon reintroduction above Shasta Dam. The goal of the JSCS Pilot Project was to test the performance of the JSCS structure in the McCloud Arm of Shasta Reservoir and to design, fabricate, and test configurations of the JSCS fish trap. DWR tested initial structural components of the JSCS in Shasta Reservoir in 2022 and operated the complete system at five sites across the reservoir–riverine interface in the McCloud Arm of Shasta Reservoir 2023 — 2024. Based on the results for those years, DWR redesigned the trap (JSCS V2) and deployed it in riverine conditions downstream of the McCloud Bridge Campground between September 30 — December 1, 2025. This dataset summarizes the data collected for the pilot study including environmental data collected on and around the JSCS fish trap, structural performance data for the JSCS fish trap, and fish capture data from the JSCS fish trap. | Download | CSV | 03/18/26 |
JSCS 2023-2025 Fish Stomach Contents Dataset The California Department of Water Resources (DWR) conducted the Juvenile Salmonid Collection System (JSCS) Pilot Project from 2022 — 2025 to test new methods in fish capture and collect juvenile winter-run Chinook Salmon in the McCloud River (Wintu name: Winnemem Waywaket) as part of the greater effort to assess the feasibility of Chinook Salmon reintroduction above Shasta Dam. The goal of the JSCS Pilot Project was to test the performance of the JSCS structure in the McCloud Arm of Shasta Reservoir and to design, fabricate, and test configurations of the JSCS fish trap. DWR tested initial structural components of the JSCS in Shasta Reservoir in 2022 and operated the complete system at five sites across the reservoir–riverine interface in the McCloud Arm of Shasta Reservoir 2023 — 2024. Based on the results for those years, DWR redesigned the trap (JSCS V2) and deployed it in riverine conditions downstream of the McCloud Bridge Campground between September 30 — December 1, 2025. This dataset summarizes the data collected for the pilot study including environmental data collected on and around the JSCS fish trap, structural performance data for the JSCS fish trap, and fish capture data from the JSCS fish trap. | Download | CSV | 03/18/26 |
JSCS 2023-2025 Pre-fishing Discrete Water Quality Dataset The California Department of Water Resources (DWR) conducted the Juvenile Salmonid Collection System (JSCS) Pilot Project from 2022 — 2025 to test new methods in fish capture and collect juvenile winter-run Chinook Salmon in the McCloud River (Wintu name: Winnemem Waywaket) as part of the greater effort to assess the feasibility of Chinook Salmon reintroduction above Shasta Dam. The goal of the JSCS Pilot Project was to test the performance of the JSCS structure in the McCloud Arm of Shasta Reservoir and to design, fabricate, and test configurations of the JSCS fish trap. DWR tested initial structural components of the JSCS in Shasta Reservoir in 2022 and operated the complete system at five sites across the reservoir–riverine interface in the McCloud Arm of Shasta Reservoir 2023 — 2024. Based on the results for those years, DWR redesigned the trap (JSCS V2) and deployed it in riverine conditions downstream of the McCloud Bridge Campground between September 30 — December 1, 2025. This dataset summarizes the data collected for the pilot study including environmental data collected on and around the JSCS fish trap, structural performance data for the JSCS fish trap, and fish capture data from the JSCS fish trap. | Download | CSV | 03/18/26 |
JSCS 2023-2025 Water Velocity Pre-fishing Dataset The California Department of Water Resources (DWR) conducted the Juvenile Salmonid Collection System (JSCS) Pilot Project from 2022 — 2025 to test new methods in fish capture and collect juvenile winter-run Chinook Salmon in the McCloud River (Wintu name: Winnemem Waywaket) as part of the greater effort to assess the feasibility of Chinook Salmon reintroduction above Shasta Dam. The goal of the JSCS Pilot Project was to test the performance of the JSCS structure in the McCloud Arm of Shasta Reservoir and to design, fabricate, and test configurations of the JSCS fish trap. DWR tested initial structural components of the JSCS in Shasta Reservoir in 2022 and operated the complete system at five sites across the reservoir–riverine interface in the McCloud Arm of Shasta Reservoir 2023 — 2024. Based on the results for those years, DWR redesigned the trap (JSCS V2) and deployed it in riverine conditions downstream of the McCloud Bridge Campground between September 30 — December 1, 2025. This dataset summarizes the data collected for the pilot study including environmental data collected on and around the JSCS fish trap, structural performance data for the JSCS fish trap, and fish capture data from the JSCS fish trap. | Download | CSV | 03/18/26 |
JSCS 2023-2025 Water Depth Pre-fishing Dataset The California Department of Water Resources (DWR) conducted the Juvenile Salmonid Collection System (JSCS) Pilot Project from 2022 — 2025 to test new methods in fish capture and collect juvenile winter-run Chinook Salmon in the McCloud River (Wintu name: Winnemem Waywaket) as part of the greater effort to assess the feasibility of Chinook Salmon reintroduction above Shasta Dam. The goal of the JSCS Pilot Project was to test the performance of the JSCS structure in the McCloud Arm of Shasta Reservoir and to design, fabricate, and test configurations of the JSCS fish trap. DWR tested initial structural components of the JSCS in Shasta Reservoir in 2022 and operated the complete system at five sites across the reservoir–riverine interface in the McCloud Arm of Shasta Reservoir 2023 — 2024. Based on the results for those years, DWR redesigned the trap (JSCS V2) and deployed it in riverine conditions downstream of the McCloud Bridge Campground between September 30 — December 1, 2025. This dataset summarizes the data collected for the pilot study including environmental data collected on and around the JSCS fish trap, structural performance data for the JSCS fish trap, and fish capture data from the JSCS fish trap. | Download | CSV | 03/18/26 |
JSCS 2022-2025 Weather Dataset The California Department of Water Resources (DWR) conducted the Juvenile Salmonid Collection System (JSCS) Pilot Project from 2022 — 2025 to test new methods in fish capture and collect juvenile winter-run Chinook Salmon in the McCloud River (Wintu name: Winnemem Waywaket) as part of the greater effort to assess the feasibility of Chinook Salmon reintroduction above Shasta Dam. The goal of the JSCS Pilot Project was to test the performance of the JSCS structure in the McCloud Arm of Shasta Reservoir and to design, fabricate, and test configurations of the JSCS fish trap. DWR tested initial structural components of the JSCS in Shasta Reservoir in 2022 and operated the complete system at five sites across the reservoir–riverine interface in the McCloud Arm of Shasta Reservoir 2023 — 2024. Based on the results for those years, DWR redesigned the trap (JSCS V2) and deployed it in riverine conditions downstream of the McCloud Bridge Campground between September 30 — December 1, 2025. This dataset summarizes the data collected for the pilot study including environmental data collected on and around the JSCS fish trap, structural performance data for the JSCS fish trap, and fish capture data from the JSCS fish trap. | Download | CSV | 03/18/26 |
Supporting files
| Data title and description | Access data | File details | Last updated |
|---|---|---|---|
Thermometer Accuracy Verification SOP The standard operating procedures (SOP) followed to verify the accuracy of the HOBO serial loggers. | PDF | 03/18/26 | |
Calibration and Maintenance for Multi-Parameter Water Quality Instruments (EXO) The standard operating procedures (SOP) used to calibrate and maintain the YSI EXO2 meter. | PDF | 03/18/26 | |
Calibration and Maintenance for Multi-Parameter Water Quality Instruments (ProDSS) The SOP used to maintain and calibrate the YSI ProDSS (ProDSS) in the field; the meter was calibrated weekly. | PDF | 03/18/26 | |
JSCS Efficiency Trial SOP The SOP used for JSCS efficiency trials. | PDF | 03/18/26 | |
JSCS Drone Operations SOP The standard operating procedures (SOP) used for JSCS drone flights. | PDF | 03/18/26 | |
JSCS Trap Collection SOP The SOP used to process fish trapped by the JSCS. | PDF | 03/18/26 | |
JSCS Hydraulics SOP The standard operating procedures (SOP) used to capture hydraulic data about the JSCS. | PDF | 03/18/26 | |
JSCS Structure Inspection SOP The SOP used to inspect the JSCS structure. | PDF | 03/18/26 | |
JSCS Water Quality Sampling SOP The SOP used to measure water quality for the JSCS pilot study. | PDF | 03/18/26 | |
JSCS 2022-2025 Drone Imagery Aerial imagery of the JSCS during operations. | PDF | 03/18/26 |