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Objectives Disclose and discuss ongoing and planned monitoring, biological and physical modeling, and analysis and synthesis related to voluntary species recovery and water management goals. Disclose and discuss priorities for reducing uncertainty regarding the conditions necessary to achieve desired fishery and water management goals by developing and applying one or more conceptual models linking actions to expected outcomes to provide for transparency in the scientific basis for decision making and priorities. Identify and pursue opportunities to consolidate the number of collaborative forums addressing fishery needs in the upper Sacramento River watershed and support a regional structured decision-making process (that includes structured decision-making under the Central Valley Project Improvement Act). Coordinate a Science and Monitoring Plan for the upper Sacramento River that is integrated with other science and monitoring efforts addressing Central Valley salmon stocks. Develop and undertake experimental actions to test hypotheses and address shared priority management questions. Facilitate and establish protocols for collaboration among the scientific and stakeholder community for the discussion of findings, prior to publication, and the shared synthesis of new science into decision support models. Identify and understand the trade-offs of decisions between different species and water uses.

2021 Events Spring Pulse Flow Science-Sharing Webinar December 9, 2021: Workshop Materials Spring Pulse Scenario Planning Presentation Science Sharing Webinar Spring Pulse Flows: https://www.youtube.com/watch?v=DQby-rxsgBs CVPIA Habitat Restoration Update to Science Subcommittee October 28, 2021: Workshop Materials CVPIA Habitat Restoration Update Presentation CVPIA Habitat Restoration Video: https://www.youtube.com/watch?v=6W7Qu2pJRiw Floodplain Science & Management Symposium October 13-15, 2021 : Symposium Materials Information, recordings, presentations, and background materials. Fish Trends Webinar May 21, 2021: Presentations Red Bluff Trapping Counts, RSTs, and Winter-Run JPE Summary (Bill Poytress, USFWS) Summary of 2020 Acoustic Tagging Results (Jeremey Notch, SWFSC/NMFS) Flow-Survival Paper (Cyril Michel, SWFSC/NMFS) Shasta Fall Flow Coordination and Shallow Redd Monitoring in 2020 (Matt Johnson, CDFW) Planned 2021 Monitoring (Evan Sawyer, NMFS) Temperature Dependent Mortality Modeling Webinar February 4, 2021: Presentations Sacramento River Temperature Dependent Mortality Modeling Science Webinar Additional Information Targeting river operations to the critical thermal window of fish incubation: model and case study on Sacramento River winter-run Chinook salmon (Anderson et al.) , including Supplemental Information Effects of Temperature on early early-life survival of Sacramento river fall- and winter-run Chinook salmon. 1996 USFWS final report Spawn Timing of Winter-Run Chinook Salmon in the Upper Sacramento River (E. Dusek Jennings and A. N. Hendrix (2020)) DOI: https://doi.org/10.15447/sfews.2020v18iss2art5 Temperature Modeling Webinar January 29, 2021: Presentations Sacramento River Temperature Modeling Science Webinar Please email info@sacriverscience.org to be added to the event notification list.

2024 Events Sacramento River Science Partnership 2024 Annual Workshop Habitat Restoration for Chinook Salmon Juvenile Rearing in the Upper Sacramento River November 7, 2024: Restoration Site Visit in the Upper Sacramento River Restoration Site Visit Itinerary November 8, 2024: In-Person Workshop SRSP Workshop Agenda View the Workshop Presentations here: https://youtu.be/LFcwUcu04Ao Collaboratory for Equity in Water Allocation (COEQWAL) Webinar - May 22, 2024 Presented by Theodore Grantham, UC Berkeley COEQWAL Final Agenda Sacramento River Fish Trends SRSP Science Webinar - March 29, 2024 2024 Fish Trends Final Agenda Fish Trends presentation files Winter-run Chinook Carcass and Redd Surveys - Methods, Analysis, & Results Red Bluff Trapping Counts, RSTs, and Winter-run Chinook JPE Summary - 2023 Results Interim Winter-run Chinook Genetic Analysis - Sac Trawl, Chipps Trawl, and SWP/CVP Salvage Genetic Analysis Summary of Outmigration Survival through the Sacramento River & Telemetry Studies - Preliminary Analysis Fall-run Chinook Salmon Escapement Adult Upstream Salmon Migration Fish Trends presentation recordings Opening Remarks and Winter-run Chinook Carcass and Redd Surveys Red Bluff Trapping Counts, RSTs, and Winter-run Chinook JPE Summary Interim Winter-run Chinook Genetic Analysis Summary of Outmigration Survival through the Sacramento River & Telemetry Studies Fall-run Chinook Salmon Escapement Adult Upstream Salmon Migration Please email info@sacriverscience.org to be added to the event notification list.

Who We Are Formed in 2018, to establish and maintain a science enterprise for voluntary collaborative research, modeling, monitoring, and synthesis relevant to salmonid and other in-river species recovery and water management on the main stem Sacramento River to facilitate joint learning and fact-finding between and among scientists and managers. Members Bureau of Reclamation California Department of Fish & Wildlife Department of Water Resources Southwest Fisheries Science Center National Oceanic and Atmospheric Administration US Fish & Wildlife Service Sacramento River Settlement Contractors SRSP Documents Sacramento River Science Partnership Project Brief Sacramento River Science Partnership Charter

Structured Decision Making 2022-2023 Egg-to-Fry Structured Decision Making Egg-to Fry Value of Information Interim Report: Influence Diagram and Qualitative Analysis To Advance Structured Decision-Making

Parentage Based Tagging (PBT) The SRSP’s Science Subcommittee has been charged with hosting a series of science sharing presentations focused on parentage based tagging (PBT). The goals of these presentations include: Develop a shared understanding of PBT among a variety of audiences including scientists, field technicians, fishermen, water users, agency staff, and NGOs. Develop a shared understanding PBT as a tool that can be used to meet a range of objectives using lessons learned from other regions and applications. Presentation Recordings 9/4/25: Unifying Salmon Monitoring Through Genetic Intelligence , Scott Blankenship, Cramer Fish Sciences 9/4/25: Parentage-Based Tagging (PBT) and Potential Applications to California Chinook Harvest and Escapement Monitoring and Modeling , Will Satterthwaite, NOAA Southwest Fisheries Science Center 9/11/25: Fry as a Lost Life History Strategy , Stephanie Carlson, UC Berkeley 12/5/25: Tracking fish too small to tag: PBT at Coleman National Fish Hatchery - Christian Smith, USFWS 12/11/25: The Origins of PBT and its Applications in the California Central Valley , Carlos Garza, NOAA and Anthony Clemento, UC Santa Cruz 1/8/2026: Applying Parentage Methods to Detect Gravel Augmentation Effects on Juvenile Chinook Salmon Recruitment Rates , Scott Blankenship, Cramer Fish Sciences 1/22/2026: Monitoring Fall-run Chinook Salmon Life Stage Release Diversification Using Parentage Based Tagging Mike Brown, CDFW 3/12/2026: Genetic Monitoring of Salmonids in the Columbia River Basin , Shawn Narum, Jon Hess, and Rebekah Horn, Columbia River Inter-Tribal Fish Commission (CRITFC) Upcoming Presentations

Winter Instability Flows Presentation Recordings 2/5/2026: Leveraging the Infrastructure of a Highly Modified Ecosystem to Support the Migrations of an Imperiled Species , Cyril Michel, Southwest Fisheries Science Center/UC Santa Cruz 5/14/2026 – Building Ecosystem Resilience with Functional Flows , Sarah Yarnell, PhD, Research Hydrologist, Center for Watershed Sciences, UC Davis 5/21/2026 – A Method to Implement Natural Flow Regimes for Regulated Rivers , Nicholas A. Som, Unit Leader, USGS California Cooperative Fish and Wildlife Research Unit and Seth W. Naman, Fish Biologist, NOAA Fisheries

Sacramento River Science Partnership A voluntary science enterprise established to inform joint learning on species recovery and water management on the mainstem of the Sacramento River Steelhead at Coleman National Fish Hatchery Near Ord Bend Side Channel Restoration Project Steelhead at Coleman National Fish Hatchery 1/19 Partnership Shares Science to Find Fish and Water Solutions

Resources Sacramento Science Collaboratives CSAMP CVPIA Science Integration Team Central Valley Salmon Habitat Partnership Data Repositories Brood Year 2019 Winter-Run Chinook Salmon Operations and Monitoring Assessment CSAMP at Bay-Delta Live SacPAS Reclamation Information Sharing Environment (RISE) NOAA Fisheries Science and Data Environmental Data Initiative (EDI) SRWP Data Portal IEP Interagency Ecological Program Sacramento River Technical Teams Sacramento River Temperature Task Group Water Operations Management Team Documents

Join Us There are several opportunities to collaborate with the Partnership. Attend science-sharing events , including quarterly science webinars and annual science workshops. Visit the Events page for more information on recent and upcoming events. Participate in an ad-hoc group. The Partnership occasionally forms small groups to help with tasks such as planning science-sharing events or developing science activities. Become a member. Membership is open to those who meet the following eligibility criteria: Are resource agencies, NGOs, coalitions of constituents of the Sacramento River, academic research institutions. Membership will not include private consultants and private organizations. Manage or work on issues related to the Sacramento River and its fisheries and water management. Represent a credible voice in the Sacramento River community of resource managers and scientists. Sign the SRSP Charter. Commit to participate in Partnership and Science Subcommittee meetings and ad-hoc groups as appropriate. If you are interested in engaging with us or becoming a member, please email info@sacriverscience.org .