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Buzby, N.; Lin, D.; Sutton, R. 2020. Neonicotinoids and Their Degradates in San Francisco Bay Water. SFEI Contribution No. 1002. San Francisco Estuary Institute: Richmond, CA.

In the summer of 2017, open Bay water samples were collected during the RMP Status and Trends Water Cruise. Samples were analyzed for 19 neonicotinoids and metabolites. The only neonicotinoid detected was imidacloprid, an active ingredient used in both urban and agricultural applications. Imidacloprid was detected at a single site above the method detection limits (2.2-2.6 ng/L) in Lower South Bay at a level of 4.2 ng/L. This value is within the range of concentrations found in a separate RMP study in water samples collected from the South and Lower South Bay margins in 2017. Imidacloprid was detected at 3 of 12 of the margin sites at levels between 3.9 and 11 ng/L; no other neonicotinoids were detected. Of note, these RMP studies appear to represent the first evaluation of ambient neonicotinoid concentrations in an estuarine environment in the nation.

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SFEI; Safran, S. M. 2014. Natural Flow Hydrodynamic Modeling Technology Support Phase 1 Technical Memorandum.

This technical memorandum summarizes the work to date carried out by the San Francisco Estuary Institute (SFEI) to generate a bathymetric-topographic digital elevation model (DEM) of the historical Sacramento-San Joaquin Delta (representative of early 1800s conditions). The historical DEM described in this document is an interim/draft product completed for Phase I of the Bay-Delta Natural Flow Hydrodynamics and Salinity Transport modeling project. It is expected that the product and methods described here will be refined during a second phase of the project.

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Kleckner, A.; Davis, J. 2024. Multi Year Plan 2024. SFEI Contribution No. 1167. San Francisco Estuary Institute: Richmond, CA.

The purpose of this document is to guide efforts and summarize plans developed within the RMP. The intended audience includes representatives of the many organizations who directly participate in the Program. This document will also be useful for individuals who are not directly involved with the RMP but are interested in an overview of the Program and where it is heading.


The organization of this Multi-Year Plan parallels the RMP planning process (Figure 2). Section 1 presents the long-term management plans of the agencies responsible for managing water quality in the Bay and the overarching management questions that guide the Program. The agencies’ long-term management plans provide the foundation for RMP planning (Figure 2). In order to turn the plans into effective actions, the RMP distills prioritized lists of management questions that need to be answered (Page 8). The prioritized management questions then serve as a roadmap for scientists on the Technical Review Committee, workgroups, and strategy teams to plan and implement scientific studies to address the most urgent information needs. This information sharpens the focus on management actions that will most effectively and efficiently

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Foley, M.; Davis, J.; Yee, D. 2023. Multi-Year Plan 2023. SFEI Contribution No. 1096. San Francisco Estuary Institute: Richmond, California.

The purpose of this document is to guide efforts and summarize plans developed within the RMP. The intended audience includes representatives of the many organizations who directly participate in the Program. This document will also be useful for individuals who are not directly involved with the RMP but are interested in an overview of the Program and where it is heading.  

The organization of this Multi-Year Plan parallels the RMP planning process (Figure 2). Section 1 presents the long-term management plans of the agencies responsible for managing water quality in the Bay and the overarching management questions that guide the Program. The agencies’ long-term management plans provide the foundation for RMP planning (Figure 2). In order to turn the plans into effective actions, the RMP distills prioritized lists of management questions that need to be answered (Page 8). The prioritized management questions then serve as a roadmap for scientists on the Technical Review Committee, workgroups, and strategy teams to plan and implement scientific studies to address the most urgent information needs. This information sharpens the focus on management actions that will most effectively and efficiently improve water quality in the Bay. 

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Baumgarten, S.; Beller, E. E.; Grossinger, R. M.; Askevold, R. A. 2015. Mt. Wanda Historical Ecology Investigation. SFEI Contribution No. 743. San Francisco Estuary Institute - Aquatic Science Center: Richmond, CA. p 51.
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Lowe, S. 2017. MS4 2009 Permit Monitoring Results (2010-2015) Summary of Sonoma County Water Agency’s Data for two Sites in Santa Rosa Creek. SFEI Contribution No. 832. San Francisco Estuary Institute: Richmond. CA. p 35.

This memo summarizes the Sonoma County Water Agency's  2009 receiving water monthly monitoring results for the North Coast Regional Water Quality Control Board's NPDES Permit No. R1-2009-0050.  The data were compiled, formatted and uploaded to SFEI’s Regional Data Center and are availble through CEDEN (https://ceden.waterboards.ca.gov/AdvancedQueryTool) under the Program Name "Russian River MS4 Program" and Project Names "2009 5 year Permit for RR_MS4 Program SCWA" and "2009 5 year Permit for RR_MS4 Program CSR".  The memo summarizes field measures and water chemistry, bacteria, and toxiciity results from two receving waters sites in Santa Rosa Creek downstream (C1-SRC-D) and upstream of the City of Santa Rosa.  

This memo was funded by a Suplemental Environmental Project (SEP) settlement of an enforcement action by the North Coast Regional Water Quality Control Board against the County of Sonoma.  2016.

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Cohen, A. N. 1998. Monitoring for Non-indigenous Organisms. SFEI Contribution No. 385. San Francisco Estuary Institute: Oakland, CA.
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Avellaneda, P. M.; Zi, T. 2024. Modeling Stormwater Loads of Contaminants of Emerging Concern: Literature Review and Recommendations. SFEI Contribution No. 1131. San Francisco Estuary Institute: Richmond, CA.
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Safran, S. M.; Clark, E.; Beller, E. E.; Grossinger, R. M. 2016. Mission Bay Historical Ecology Reconnaissance Study: Data Collection Summary (Technical Report). SFEI Contribution No. 777.

The goals of the Mission Bay Historical Ecology Reconnaissance Study were to collect and compile high-priority historical
data about the Mission Bay landscape, identify sources that could help to develop a deeper understanding of early
ecological conditions, and to identify future possible research directions based on the available data. This technical
memorandum is intended to document the archives consulted during the reconnaissance study, summarize the collected
and compiled data, and to identify potential next steps. A separate technical presentation to project staff and advisors will
summarize the preliminary findings and questions generated from a review of the historical dataset. Ultimately, this
research is intended to support the San Diego Audubon Society’s Mission Bay Wetlands Conceptual Restoration Plan (CRP)
and the ReWild Mission Bay project.

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Sedlak, M.; Sutton, R.; Miller, L.; Lin, D. 2019. Microplastic Strategy Update. SFEI Contribution No. 951. San Francisco Estuary Institute: Richmond, CA.

Based on the detection of microplastics in San Francisco Bay surface water and Bay Area wastewater effluent in 2015, the Regional Monitoring Program for Water Quality in San Francisco Bay (RMP) convened a Microplastic Workgroup (MPWG) in 2016 to discuss the issue, identify management information needs and management questions (MQs), and prioritize studies to provide information to answer these management questions. The MPWG meets annually to review on-going microplastic projects and to conduct strategic long-term planning in response to new information in this rapidly evolving field.


In this nascent field with new findings published almost daily, the Strategy is designed to be a living document that is updated periodically. This Strategy Update includes a short summary of recent findings from the San Francisco Bay Microplastics Project - a major monitoring effort in the Bay - and an updated multi-year plan based on the newly acquired knowledge and current management needs.

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Sutton, R.; Sedlak, M. 2017. Microplastic Monitoring and Science Strategy for San Francisco Bay. SFEI Contribution No. 798. San Francisco Estuary Institute: Richmond, Calif.
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Miller, E.; Klasios, N.; Lin, D.; Sedlak, M.; Sutton, R.; Rochman, C. 2020. Microparticles, Microplastics, and PAHs in Bivalves in San Francisco Bay. SFEI Contribution No. 976. San Francisco Estuary Institute: Richmond, CA.

California mussels (Mytilus californianus and hybrid Mytilus galloprovincialis / Mytilus trossulus) and Asian clams (Corbicula fluminea) were collected at multiple sites in San Francisco Bay. Mussels from a reference area with minimal urban influence were also deployed in cages for 90 days at multiple sites within the Bay prior to collection.Mussels from the reference time zero site, Bodega Head, had some of the lowest microparticle levels found in this study, along with resident clams from the San Joaquin and Sacramento Rivers and mussels transplanted to Pinole Point. The highest concentrations of microparticles were in mussels transplanted to Redwood Creek and Coyote Creek. The results of this study and current literature indicate that bivalves may not be good status and trends indicators of microplastic concentrations in the Bay unless the interest is in human health exposure via contaminated bivalve consumption.

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Jabusch, T.; Trowbridge, P. 2018. Microbial Water Quality at Minimally Human-Impacted Reference Beaches in Northern California. SFEI Contribution No. 858. San Francisco Estuary Institute : Richmond, CA.
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Jassby, A. D. 1996. Methods for Analysis of Spatial and Temporal Patterns. SFEI Contribution No. 18. San Francisco Estuary Institute: Richmond, CA.
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Cohen, A. N.; Weinstein, A. 1998. Methods and Data for Analysis of Potential Distribution and Abundance of Zebra Mussels in California. SFEI Contribution No. 225. A report for CALFED and the California Urban Water Agencies. San Francisco Estuary Institute: Richmond CA.
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Greenfield, B. K.; Ichikawa, G.; Stephenson, M.; Davis, J. A. 2002. Mercury in Sport Fish from the Delta Region (Task 2A). SFEI Contribution No. 252. San Francisco Estuary Institute / CALFED Final Project Report.: Oakland, CA. p 88 pp.
Greenfield, B. K.; Jahn, A. 2010. Mercury in San Francisco Bay forage fish. San Francisco Estuary Institute: Oakland, Ca.
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Slotton, D. G.; Jones, A. B. 1996. Mercury Effects, Sources, and Control Measures. SFEI Contribution No. 20. San Francisco Estuary Institute: Richmond, CA.
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Yee, D. 2008. Mercury and Methylmercury in North Bay Tidal Marshes. RMP Mercury Coordination Meeting: Oakland,Ca.
Davis, J. A.; Heim, W. A.; Bonnema, A.; Jakl, B.; Yee, D. 2018. Mercury and Methylmercury in Fish and Water from the Sacramento-San Joaquin Delta: August 2016 – April 2017. SFEI Contribution No. 908. Aquatic Science Center: Richmond, CA.

Monitoring of sport fish and water was conducted by the Delta Regional Monitoring Program (Delta RMP) from August 2016 to April 2017 to begin to address the highest priority information needs related to implementation of the Sacramento–San Joaquin Delta Estuary Total Maximum Daily Load (TMDL) for Methylmercury (Wood et al. 2010). Two species of sport fish, largemouth bass (Micropterus salmoides) and spotted bass (Micropterus punctulatus), were collected at six sampling locations in August and September 2016. The length-adjusted (350 mm) mean methylmercury (measured as total mercury, which is a routinely used proxy for methylmercury in predator fish) concentration in bass ranged from 0.15 mg/kg or parts per million (ppm) wet weight at Little Potato Slough to 0.61 ppm at the Sacramento River at Freeport. Water samples were collected on four occasions from August 2016 through April 2017. Concentrations of methylmercury in unfiltered water ranged from 0.021 to 0.22 ng/L or parts per trillion. Concentrations of total mercury in unfiltered water ranged from 0.91 to 13 ng/L.

Over 99% of the lab results for this project met the requirements of the Delta RMP Quality Assurance Program Plan, and all data were reportable. This data report presents the methods and results for the first year of monitoring. Historic data from the same or nearby monitoring stations from 1998 to 2011 are also presented to provide context. Monitoring results for both sport fish and water were generally comparable to historic observations.

For the next several years, annual monitoring of sport fish will be conducted to firmly establish baseline concentrations and interannual variation in support of monitoring of long-term trends as an essential performance measure for the TMDL. Monitoring of water will solidify the linkage analysis (the quantitative relationship between methylmercury in water and methylmercury in sport fish) in the TMDL. Water monitoring will also provide data that will be useful in verifying patterns and trends predicted by numerical models of mercury transport and cycling being developed for the Delta and Yolo Bypass by the California Department of Water Resources (DWR).

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Cohen, A. N.; Williams, E. H. 2002. Marine Exotic Species in the Caribbean: A Progress Report. University of Puerto Rico/Isla Magueyes Laboratory, La Parguera, Puerto Rico.
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Spotswood, E.; Grossinger, R.; Hagerty, S.; Bazo, M.; Benjamin, M.; Beller, E.; Grenier, L.; Askevold, R. A. 2019. Making Nature's City. SFEI Contribution No. 947. San Francisco Estuary Institute: Richmond, CA.

Cities will face many challenges over the coming decades, from adapting to a changing climate to accommodating rapid population growth. A related suite of challenges threatens global biodiversity, resulting in many species facing extinction. While urban planners and conservationists have long treated these issues as distinct, there is growing evidence that cities not only harbor a significant fraction of the world’s biodiversity, but also that they can also be made more livable and resilient for people, plants, and animals through nature-friendly urban design. 

Urban ecological science can provide a powerful tool to guide cities towards more biodiversity-friendly design. However, current research remains scattered across thousands of journal articles and is largely inaccessible to practitioners. Our report Making Nature’s City addresses these issues, synthesizing global research to develop a science-based approach for supporting nature in cities. 

Using the framework outlined in the report, urban designers and local residents can work together to connect, improve, and expand upon city greenspaces to better support biodiversity while making cities better places to live. As we envision healthier and more resilient cities, Making Nature’s City provides practical guidance for the many actors who together will shape the nature of cities.

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Lowe, S.; Salomon, M.; Pearce, S. 2016. Lower Peninsula Watershed Condition Assessment 2016. Technical memorandum prepared for the Santa Clara Valley Water District - Priority D5 Project. SFEI Contribution No. 809. San Francisco Estuary Institute: Richmond, CA. p 49.

In 2016 The Santa Clara Valley Water District and its consultants conducted a watershed wide survey to characterize the distribution and abundance of the aquatic resources within the Lower Peninsula watershed wtihin Santa Clara County, CA based on available GIS data, and to assess the overall ecological condition of streams within the watershed based on a statistically based, random sample design and the California Rapid Assessment Method for streams (CRAM).

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Gunther, A. J.; Blanchard, C.; Gardels, K. 1991. The Loading of Toxic Contaminants to the San Francisco Bay -Delta in Urban Runoff. SFEI Contribution No. 167. San Francisco Estuary Institue: Richmond, CA. p 82.
Vaughn, L. Smith; Panlasigui, S.; Spotswood, E. 2020. Livestock grazing and its effects on ecosystem structure, processes, and conservation. SFEI Contribution No. 1011. San Francisco Estuary Institute: Richmond, CA.
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Vaughn, L. Smith; Plane, E.; Harris, K.; Robinson, A.; Grenier, L. 2022. Leveraging Wetlands for a Better Climate Future: Incorporating Blue Carbon into California's Climate Planning. SFEI Contribution No. 1084. San Francisco Estuary Institute: Richmond, CA. p 31.

The 2022 update to California’s climate change Scoping Plan incorporates management actions in the state’s forests, shrublands/chaparral, grasslands, croplands, developed lands, deltaic wetlands, and sparsely vegetated lands. Missing from this list are the tidally-influenced coastal ecosystems outside the Sacramento-San Joaquin Delta. These blue carbon ecosystems support high rates of carbon storage and sequestration while providing many co-benefits that can enhance coastal climate change resilience. With sufficient data and robust modeling approaches, California has the opportunity to incorporate blue carbon in future Scoping Plan updates and set actionable targets for restoration, migration space conservation, and other management activities that promote long-term survival of the state’s coastal wetlands. To support this goal, this report offers a high-level overview of the state of the science for blue carbon quantification in California. This summary, which covers datasets and quantification approaches, key focus areas for additional science investment, and example scenarios for coastal wetland restoration, is intended to facilitate broader inclusion of blue carbon in future Scoping Plan updates and other state-level climate-planning documents.

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Grossinger, R. M.; Brewster, E. 2001. Land Use Timeline for Crow Canyon and the San Lorenzo Creek Watershed. SFEI Contribution No. 352. Alameda Countywide Clean Water Program. p 6 pp.
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SFEI. 2023. Landscape Scenario Planning Tool User Guide v2.2.0. San Francisco Estuary Institute: Richmond, Calif.
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Beller, E. E.; Robinson, A.; Grossinger, R. M.; Grenier, J. Letitia. 2015. Landscape Resilience Framework: Operationalizing Ecological Resilience at the Landscape Scale. SFEI Contribution No. 752. San Francisco Estuary Institute - Aquatic Science Center: Richmond, CA.
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Lowe, S.; Huck, K.; Misico, A.; Scirbe, L.; Sussman, D. 2023. Lahontan Surface Water Ambient Monitoring Program’s 20-Year Water Quality Review and Program Recommendations. SFEI Contribution No. 1110. San Francisco Estuary Institute: Richmond. CA. p 137.

This 20-year water quality monitoring status and trends report for the Lahontan Water Board’s Surface Water Ambient Monitoring Program (Regional SWAMP) provides an overview of the environmental settings across the Region to give the reader a sense of the diverse ecological landscape, land uses, distribution and abundance of aquatic resources, and fire history. It includes a retrospective analysis of the Regional SWAMP’s ongoing, targeted water quality monitoring results (2000 - 2021), and concludes by presenting an adaptive monitoring and assessment framework (adapted from the California Wetlands Monitoring Workgroup's Wetland and Riparian Monitoring Plan, known as "WRAMP").  The framework was used to review the program and recommend future monitoring changes to improve efficiencies and address some of the recommendations listed in the Regional SWAMP's 2019 Core Program Review. 

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Davis, J. A. 1988. Inventory of Priority Datasets Relating to the San Francisco Estuary. SFEI Contribution No. 141. San Francisco Estuary Institute: Richmond, CA. p 51.
Kramer, K. S. 1989. Inventory of Monitoring Programs in the San Francisco Bay and Delta. SFEI Contribution No. 156. AHI: Richmond, CA. p 48.
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Kramer, K. S. 1989. Inventory of Current Monitoring Programs in the San Francisco Bay and Delta. SFEI Contribution No. 155. San Francisco Estuary Institute: Richmond, CA. p 39.
Cohen, A. N. 2004. Invasions in the sea. SFEI Contribution No. 312. Vol. 22, pp 37-41.
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Cohen, A. N. 2001. An Introduction to the San Francisco Estuary Third Edition. San Francisco Estuary Project, Oakland CA, Save The Bay, Oakland CA and San Francisco Estuary Institute, Richmond CA: Oakland, Ca. Vol. Third Edit.
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Cohen, A. N. 2003. Introduction to the San Francisco Estuary. San Francisco Estuary Institute, Save the Bay and San Francisco Estuary Project: Oakland,CA.
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Hale, T.; Grosso, C. 2016. An Introduction to EcoAtlas: Applied Aquatic Science. San Francisco Estuary Institute: Richmond, CA. p 16 pages.

This memo was developed by SFEI to introduce the EcoAtlas tools, their intended (target) user community, and the short- and long-term intended applications. 

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Cohen, A. N. 1995. Introduced Species. Prepared for: California's Ocean Resources: An Agenda for the Future, California Resources Agency: Sacramento, CA.
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