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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

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

Please email info@sacriverscience.org to be added to the event notification list. 2026 Events Lessons Learned from 3 Years of Sacramento River Spring Pulse Flows Thursday, November 5, 2026 9:00 – 10:00 am PT Cyril Michel Project Scientist at UC Santa Cruz Fisheries Collaborative Program, i n affiliation with NMFS Southwest Fisheries Science Center Register for the Zoom link HERE. Tal k Summary : From 2024 to 2026, seven unique spring pulse flow events were generated on the Sacramento River through increased releases from Keswick Reservoir, with the goal of boosting overall spring outmigration success for juvenile Chinook salmon (Oncorhynchus tshawytscha). Acoustic telemetry and rotary screw trap captures were used to measure pulse flow performance and indicated a gradient of success across the seven events. This gradient can provide insight into the elusive mechanistic underpinning of the flow-survival relationship, and thereby better inform pulse flow implementation in the future. 2026 Fall Annual Meeting Thursday, September 10, 2026 The Science of Salmonid Reintroduction Strategies for Central Valley Tributaries View the Presentations: 2026 Fall Annual Meeting Recording Floodplain Science Webinars September 30, 2026 Parentage Based Tagging on the Lower Snake Register HERE The meeting will feature the following speakers: Matthew Campbell, Idaho Fish and Game Rod Engle, US Fish and Wildlife Service Michael Herr, Washington Department of Fish and Wildlife Shawn Narum, Columbia River Inter-Tribal Fish Commission Chris Sullivan, Idaho Fish and Game Bill Young, Nez Perce Tribe Talk Summary: Presentations and a moderated panel on the use of parentage based tagging (PBT) in the Lower Snake River. This webinar is part of an ongoing series working to develop a shared understanding of relevant and timely science around PBT in the Sacramento River Valley. June 11, 2026 Floodplain habitat usage by juvenile Chinook Salmon Eric Holmes, California Department of Water Resources This webinar covers salmon access mechanisms and differential growth potential in various habitats. June 3, 2026 Sacramento Valley Floodplain Science and Management Actions Bjarni Serup, California Department of Fish and Wildlife National Academy of Science’s (NAS) Recommendations for Shasta Reservoir Operations April 30, 2026 View the National Academy of Science's (NAS) Recommendations for Shasta Reservoir Operations: NAS Webinar - YouTube 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 Projec t : Shasta Chapter. The meeting featured 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 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 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.

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 Parentage Based Tagging on the Lower Snake Wednesday, September 30 | 1:00 - 3:00 p.m. PT Registe r HERE The meeting will feature the following speakers: Matthew Campbell, Idaho Fish and Game Rod Engle, US Fish and Wildlife Service Michael Herr, Washington Department of Fish and Wildlife Shawn Narum, Columbia River Inter-Tribal Fish Commission Chris Sullivan, Idaho Fish and Game Bill Young, Nez Perce Tribe Talk Summary: Presentations and a moderated panel on the use of parentage based tagging (PBT) in the Lower Snake River. This webinar is part of an ongoing series working to develop a shared understanding of relevant and timely science around PBT in the Sacramento River Valley.

Winter-run Chinook Salmon Brood Year Assessments Brood Year 2021 Winter-Run Chinook Salmon Operations and Monitoring Assessment Brood Year 2020 Winter-Run Chinook Salmon Operations and Monitoring Assessment Brood Year 2019 Winter-Run Chinook Salmon Operations and Monitoring Assessment

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.

There are no upcoming events at this time. Sacramento River Science Partnership Annual Workshop Thursday, October 26, 2023 9:00 am – 4:15 pm Lake Natoma Inn, Folsom CA Registration closes on October 20, 2023 Register Here! Sacramento River S cience Partnership (SRSP) is excited to announce its 2023 Fall Workshop. We hope you will be able to join us in person, though there will also be a virtual option. Registration closes - Friday 10/20/2023 Cost of ticket includes lunch, snack, and coffee Objectives Share information on water management based on ever changing hydrology, with outcomes and lessons learned from Victoria, Australia for application to California’s conditions. Share understanding of potential application of the Victorian Objectives to the Central Valley. Agenda Managing Water for the Environment During Drought: Lessons from Victoria, Australia - Theodore Grantham, Public Policy Institute of California Current strategies for considering seasonal hydrology when adapting management decision a. David Mooney, U.S. Bureau of Reclamation b. Levi Johnson, U.S. Bureau of Reclamation 3. Yolo Bypass Salmonid Habitat Restoration and Fish Passage Project a. Elizabeth Vasquez, Department of Water Resources Please reach out with any questions to: mschiappi@kearnswest.com Directions to Lake Natoma Inn Directions to Lake Natoma Inn from Historic Folsom Light Rail Station (0.3 mi): Head northwest on Reading Street to Leidesdorff Street; turn right onto Leidesdorff Street. Turn left onto Gold Lake Drive and continue to Lake Natoma Inn. Directions from Sacramento: Take US 50 east, exit at Folsom Blvd. and turn left. Follow Folsom Boulevard 4 miles to Greenback Lane. At Greenback Lane, turn right and continue over the Rainbow Bridge. Stay to the right onto Leidesdorff Street. The road will curve sharply to the right; take the first right onto Gold Lake Drive. 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

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. The paper “The Contribution of Managed Floodplains to the Recovery of Salmon in California: Challenges and Opportunities ”, published inSan Francisco Estuary & Watershed Science in June 2026, synthesizes key takeaways from the SRSP’s 2021 Floodplain Science and Management Symposium. 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.