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 .

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

2022 Events 2022 Temperature Modeling Webinar November 4, 2022 CVP Water Temperature Modeling Platform Project – Randi Field Evaluating Water Temperature Modeling and Prediction in the Sacramento River Basin: Meteorological Forcings – Andy Wood NOAA Southwest Fisheries Science Center Temperature Modeling – Eric Danner et al. Shasta Lake Flow and Temperature Modeling: CE-QUAL-W2 – Mike Deas TCD Selective Withdrawal – Alexander Forrest et al. Temperature Modeling Webinar, November 4, 2022 (recording) 2022 Upper Sacramento Urgent Salmon Actions Science-Sharing Webinar September 22, 2022 SRSP Science-Sharing Webinar Agenda SRSP Science-Sharing Webinar Video: https://www.youtube.com/watch?v=z5e8e0R8Ya4 2022 Presentation to Science Subcommittee Application of spatial explicit drift foraging model to characterize enhanced forging habitat for juvenile Chinook salmon in a restored side channel complex (Sean Luis, Cramer Fish Sciences) April 15, 2022 View Presentation here View Recording here: https://youtu.be/3uUFIEfld5w 2022 Fish Trends Webinar Upper Sacramento River Monitoring – Josh Israel Winter Run Chinook Salmon in Upper Sacramento River in 2021 – Doug Killam SRSP 2022 Fish Trends Meeting Summary of Results: 2021 RBDD RST – Bill Poytress Mechanisms, impacts, and mitigation for thiamine deficiency in Central Valley salmon – Rachel C. Johnson Update on Mill and Deer Creek spring-run Chinook populations, recovery actions, and current research – Matthew R. Johnson Connecting Species Recovery Actions and Effects – Scott Blankenship Spring Outmigration Survival through the Sacramento River – Jeremy Notch 2022 Bioenergetics Modeling Presentations to Science Subcommittee January 13, 2022 Quantification of Thermal Impacts Across Freshwater Life Stages to Improve Temperature Management of Anadromous Salmonids (Alyssa FitzGerald, SWFSC/NMFS/UCSC) Fitting Growth Models to CV Chinook Data (Peter Dudley, SWFSC/NMFS/UCSC) View a recording here: https://www.youtube.com/watch?v=nfTtHru96Sg Please email info@sacriverscience.org to be added to the event notification list.

Please email info@sacriverscience.org to be added to the event notification list. 2026 Events National Academy of Science’s (NAS) Recommendations for Shasta Reservoir Operations When: Thursday, April 30 | 9:00 - 11:00 a.m. PT Register here to receive the Zoom link. We have invited a panel of researchers convened by the NAS to share their recommendations from the Review of the Long-Term Operations of the Central Valley Project and the State Water Project : Shasta Chapter. The meeting will feature the following speakers: Peter Goodwin, University of Maryland Center for Environmental Sciences (emeritus), Chair Erin N. Bray, San Francisco State University Rene Henery, Trout Unlimited Jay R. Lund, University of California, Davis (emeritus) Steven Sadro, Tahoe Environmental Research Center and University of California, Davis Patrick J. Sullivan, Cornell University (emeritus) About the Webinar During the webinar, the speakers will address: NAS recommendations for cold water pool management at Shasta Reservoir  The weight of the evidence supporting the mechanistic relationships between cold water pool management and benefits to the Sacramento River fisheries, and in particular, winter- and fall-run Chinook.  Outstanding areas of scientific uncertainty that could be reduced to improve decision making.   Sacramento River Science Partnership Annual Meeting Condition and Survival of Outmigrating Juvenile Salmonids in the Sacramento River February 6, 2026: In-Person Meeting SRSP Workshop Agenda: View the 2025 Annual Meeting Presentations Recording: SRSP 2025 Annual Meeting - YouTube 2026 Annual Fish Trends Meeting Wednesday, April 1, 2026 2026 Fish Trends Webinar Video

2021 Floodplain Science & Management Symposium The Sacramento River Science Partnership (SRSP) hosted a virtual Floodplain Science and Management Symposium focused on the Sacramento River watershed on October 13-15, 2021 . Decision-makers, managers, scientists, and project proponents from across state and federal resource agencies, academic institutions, NGOs, and landowning and growing communities joined over Zoom in conversation about floodplains’ role in salmonid recovery and management questions related to more intensively managed floodplain projects. Other stakeholders and community members interested in listening and learning watched the presentation via livestream. Scroll down to find links to recordings of the event, presentation slides, and background materials. The OBJECTIVES of the symposium were to: Share floodplain science research – including work on flood bypasses and agricultural fields as well as more natural floodplains – to build a joint understanding of floodplain ecological function and its relationship with salmonid and green sturgeon recovery; Identify existing gaps in knowledge related to the role of floodplains in successful recovery for salmonids and green sturgeon in the Sacramento River watershed; Explore lessons learned from existing floodplain habitat projects and recent permitting efforts in the Sacramento watershed, and the tools and methodologies currently used to evaluate benefits and potential risks of management actions to salmonids and green sturgeon; and Inform a management conversation about what additional information and/or metrics for monitoring and evaluation are needed to assess, scale, and adaptively manage more intensively managed floodplain projects to benefit salmonids and green sturgeon at a population scale. AGENDA: The agenda is linked here . The first portion of the symposium (on October 13 and the morning of October 14) focused on building a joint understanding of the state of floodplain science in the context of the salmonid life cycle. The remaining portion of the symposium (October 14 and the morning of October 15) focused on the management context in which this science is being used, including exploring questions resource agencies and other stakeholders have about assessing the benefits and risks of management actions on floodplains to salmonids and green sturgeon, the tools and methodologies currently used to evaluate those benefits and risks, and what has been learned from completed and ongoing floodplain management activities. MEETING DOCUMENTATION & SUMMARIES: Recordings of all three days of the event are available on YouTube: Day 1: Wednesday, October 13, 9am-3:45pm Day 2: Thursday, October 14, 9am-3:45pm Day 3: Friday, October 15, 9am-12pm The presentation slides are organized according to agenda topic and linked below: Introductions & Keynote Presentation Hydrologic Function The Adult Experience The Juvenile Experience Closing Presentation (Ted Sommer) Synthesis Discussions of Science Presentations Management Context for Floodplain Science Managed Floodplain Projects: Case Studies & Tools for Evaluation of Benefits, Risks, & Feasibility Synthesis Discussions of Management-focused Presentations BACKGROUND MATERIALS: Floodplain Science Summary Summary of Ecological and Physical Conditions Characterizing Sacramento River Floodplain Habitats and Importance for Anadromous Fish This paper summarizes the state of the science regarding the function and role of floodplains in aquatic ecosystems in general, and specifically their role with respect to anadromous salmonids and sturgeon in the Sacramento Valley and portions of the Sacramento-San Joaquin Delta. It was drafted by staff at Anchor QEA in collaboration with the Planning Committee. NMFS White Paper NMFS’ White Paper on Central Valley Floodplain Management for Salmon: Considerations for Balancing Food Web Productivity and Fish Viability First distributed in 2019, NMFS lightly revised and condensed this paper for the Floodplain Symposium. The purpose of this document is to advance the dialogue with scientists, restoration practitioners, other agencies, and stakeholders by summarizing current science, outlining areas of agreement and disagreement, and recommending considerations to help make choices about active versus passive floodplain restoration design. Managed Floodplain Design Criteria CDFW and DWR Managed Floodplain Design Criteria and Considerations (September 2020) This document was referenced in multiple of the Thursday and Friday management-focused talks by NMFS and CDFW staff. The document is a collaborative effort between California Department of Fish & Wildlife (CDFW) and California Department of Water Resources (DWR) to identify key attributes for optimizing juvenile salmonid rearing habitat in managed agricultural floodplains, while providing for adult passage. List of Floodplain Science Documents This is a collaboratively compiled list of published papers germane to Sacramento Valley floodplains (habitat, ecosystem function, use by salmonids, etc.) and not meant to be inclusive of all relevant science. This list is being provided to the community as a tool to facilitate access to peer-reviewed and gray literature on these topics but without endorsement of the contents. We encourage attendees to add any additional relevant papers to the spreadsheet . ADDITIONAL MATERIALS DISCUSSED DURING SYMPOSIUM: California Department of Fish and Wildlife Document Library This online library contains fish rescue reports for Fremont Weir-Yolo Bypass and Tisdale Weir-Tisdale-Sutter Bypass. NMFS Fish Passage Guidelines and Other Related Resources Information and Resources about Dams on the West Coast Anadromous Salmonid Passage Facility Design California Screening Criteria Please email info@sacriverscience.org to be added to the event notification list.

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

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

Steelhead at Coleman Hatchery 6x4 Salmon eggs 6x4 Adult CV spring-run Chinook 6x4 Steelhead at Coleman Hatchery 6x4 1/19 Steelhead at Coleman Hatchery 6x4 Salmon eggs 6x4 Adult CV spring-run Chinook 6x4 Steelhead at Coleman Hatchery 6x4 1/19 Steelhead at Coleman Hatchery Salmon Eggs Adult Central Valley Spring-Run Chinook Steelhead at Coleman Hatchery 1/19

Science Plan • SRSP Science Plan September 2020 • SRSP Science Activities

2023 Events SRSP 2023 Fall Workshop Drought To Deluge: Using The Victorian Objectives To Plan For Variable Water Years In The Upper Sacramento River October 26, 2023: Workshop Materials Meeting Agenda Managing Water for a Drought: Lessons from Victoria, Australia Breakout Group Materials Recording to the Full Day Workshop: https://www.youtube.com/watch?v=HsPO1Xm95e4 SRSP Spring 2023 Annual Workshop Upper Sacramento River 2022 Urgent Salmon Actions & Drought Actions March 10, 2023 Meeting Agenda Meeting Recording Investigations into the emergence of widespread thiamine deficiency in California Salmon (Rachel Johnson, SWFSC) Prevention and Treatment for Thiamine Deficiency Complex at California Hatcheries (Kevin Kwak, CDFW) Sacramento River Science Partnership Workshop: Thiamine Deficiency Complex Management Actions 2023 (Brian Ellrott, NMFS) The McCloud River Pilot Project 2022 (Matt Johnson, CDFW) Monitoring of Spring-run Chinook Translocated into Clear Creek (Sam Provins, USFWS) Adult Salmon Translocation (Brian Krempasky, USFWS) Reconnecting Winter run Chinook salmon to ancestral waters: monitoring reintroduction to the McCloud River (Rachel Johnson, SWFSC) Hatchery Production of Winter-Run Chinook Salmon (Kevin Niemela, USFWS) Livingston Stone National Fish Hatchery (Derek Rupert, Reclamation) Hatchery Actions and Drought Response (Bob Clarke, USFWS) Hatcheries and Long Term Recovery of Central Valley Chinook Salmon (Amanda Cranford, NMFS) Annual Fish Trends Meeting - Webinar Sacramento River Fish Trends February 24, 2023 SRSP 2023 Fish Trends Agenda Recording of SRSP 2023 Fish Trends Meeting Winter-run Chinook Salmon in the Sacramento River in 2022 - Doug Killam, CDFW 2022 RBDD RST Summary of Results - Bill Poytress, USFWS-RBFWO Winter-run Chinook Salmon Population Analysis 2016, 2020 and 2021 - Scott Blankenship, Cramer Fish Sciences ITAG activities and juvenile spring-run Chinook salmon survival through the Sacramento River - Flora Cordoleani, Jeremy Notch - SWFSC/UC Sant Cruz Impacts of artificial light at night on predator-prey interaction and juvenile salmon survival - Cyril Michel, SWFSC Please email info@sacriverscience.org to be added to the event notification list.