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Patterns in bird and pollinator occupancy and richness in a mosaic of urban office parks across scales and seasons. Ecology and Evolution 14 (3).
2024. Urbanization is a leading cause of global biodiversity loss, yet cities can provide resources required by many species throughout the year. In recognition of this, cities around the world are adopting strategies to increase biodiversity. These efforts would benefit from a robust understanding of how natural and enhanced features in urbanized areas influence various taxa. We explored seasonal and spatial patterns in occupancy and taxonomic richness of birds and pollinators among office parks in Santa Clara County, California, USA, where natural features and commercial landscaping have generated variation in conditions across scales. We surveyed birds and insect pollinators, estimated multi-species occupancy and species richness, and found that spatial scale (local, neighborhood, and landscape scale), season, and urban sensitivity were all important for understanding how communities occupied sites. Features at the landscape (distance to streams or baylands) and local scale (tree canopy, shrub, or impervious cover) were the strongest predictors of avian occupancy in all seasons. Pollinator richness was influenced by local tree canopy and impervious cover in spring, and distance to baylands in early and late summer. We then predicted the relative contributions of different spatial scales to annual bird species richness by simulating “good” and “poor” quality sites based on influential covariates returned by the previous models. Shifting from poor to good quality conditions locally increased annual avian richness by up to 6.8 species with no predicted effect on the quality of the neighborhood. Conversely, sites of poor local and neighborhood scale quality in good-quality landscapes were predicted to harbor 11.5 more species than sites of good local- and neighborhood-scale quality in poor-quality landscapes. Finally, more urban-sensitive bird species were gained at good quality sites relative to urban tolerant species, suggesting that urban natural features at the local and landscape scales disproportionately benefited them.
Petaluma River Watershed Contemporary Riparian Condition Assessment. Petaluma River Watershed Contemporary Riparian Condition Assessment. SFEI Contribution No. 1160. San Francisco Estuary Institute: Richmond, CA.
2024. (7.81 MB)Petaluma River Baylands Strategy. Prepared by San Francisco Estuary Institute, Sonoma Land Trust, Point Blue Conservation Science, Ducks Unlimited, and Sonoma Resource Conservation District. Funded by the Wildlife Conservation Board.
. 2023. (12.81 MB) (12.16 MB)Pharmaceuticals, pesticides, and ultraviolet filters in wastewater discharges to San Francisco Bay as drivers of ecotoxicity. Environmental Pollution 336 . SFEI Contribution No. 1153.
2023. Research in the United States evaluating ecotoxic risk to receiving waters posed by contaminants occurring in wastewater discharges typically has focused on measurements of pharmaceuticals and personal care products (PPCPs), with limited evaluations of UV filters and phenylpyrazole and neonicotinoid pesticides. In this study, concentrations of 5 representative pharmaceuticals, 11 pesticides or pesticide degradation products, and 5 ultraviolet filters were measured in 24 h composite samples of six wastewater discharges representing ∼70% of the total wastewater discharged to San Francisco Bay during the summer and fall of 2021. No significant difference was observed between concentrations measured on weekdays vs. weekends. A hydrodynamic model of San Francisco Bay was used to estimate annual average dilution factors associated with different subembayments. With and without considering dilution effects, Risk Quotients were calculated using the 90th percentile of measured concentrations in wastewater effluents and threshold concentrations associated with ecotoxicity. Risk Quotients were highest for the neonicotinoid pesticide, imidacloprid, and exceeded ecotoxicity thresholds in the lower South Bay by a factor of 2.4, even when considering dilution. Compared to commonly measured pharmaceuticals, Risk Quotients for imidacloprid were higher than those for carbamazepine, trimethoprim and diclofenac, and comparable to those for propranolol and metoprolol. Risk Quotients for the pesticide, fipronil, and the UV filter, oxybenzone, were higher than for carbamazepine. The results highlight the need to incorporate pesticides and UV filters with high Risk Quotients into studies in the United States evaluating ecotoxic risk associated with contaminants in municipal wastewater discharges.
PFAS in San Francisco Bay Water. SFEI Contribution No. 1094. San Francisco Estuary Institute: Richmond, CA.
2022. (2.37 MB)Per- and polyfluoroalkyl substances (PFAS), a family of thousands of synthetic, fluorine-rich compounds commonly referred to as “forever chemicals,” are known for their thermal stability, non-reactivity, and surfactant properties. These unique compounds have widespread uses across consumer, commercial, and industrial products, resulting in widespread occurrence in the environment and wildlife across the globe. This study analyzed ambient surface water in San Francisco Bay for 40 PFAS to discern the occurrence, fate, and potential risks to ecological and human health.
Eleven of 40 PFAS were detected in ambient surface water collected in 2021 from 22 sites in the Bay. Seven PFAS (PFPeA, PFHxA, PFHpA, PFOA, PFBS, PFHxS, and PFOS), were found in at least 50% of samples. PFHxA and PFOA were the most frequently detected analytes (detection frequencies of 86% and 77%, respectively). PFPeA and PFHxA were generally found at the highest concentrations across sites, with median and maximum concentrations of 1.6 and 4.8 ng/L and 1.5 and 5.7 ng/L, respectively. Pairwise Spearman's correlations revealed strong positive correlations (p <0.001; r > 0.77) among the seven PFAS detected in at least 50% of sites, suggesting significant similarities between their sources, pathways, and/or fate in the environment. PFBA, PFNA, PFDA, and 6:2 FTS were found at a limited number of sites in the Bay. 6:2 FTS was found at a single site at 14 ng/L, the highest concentration of any individual PFAS in the Bay. The sums of detected PFAS for all sites had median and maximum concentrations of 10 and 29 ng/L, respectively.
Priority margin unit stormwater monitoring to support load estimates of PCBs into San Leandro Bay and the Emeryville Crescent. SFEI Contribution No. 1088. San Francisco Estuary Institute: Richmond, CA.
2022. (2.06 MB)PCBs in Shiner Surfperch in Priority Margin Areas of San Francisco Bay. SFEI Contribution No. 1054.
2021. (7.81 MB)Conceptual models developed for selected San Francisco Bay margin areas (referred to as priority margin units, or PMUs) have identified shiner surfperch as a crucial indicator of PCB impairment, due to their explicit inclusion as an indicator species in the PCBs TMDL, importance as a popular sport fish species, tendency to accumulate high PCB concentrations, site fidelity, and other factors. The conceptual models recommend periodic monitoring of shiner surfperch to track trends in the PMUs, and as the ultimate indicator of progress in reduction of impairment. The objectives of this study were to 1) establish baselines for long-term monitoring of PCB concentrations in shiner surfperch in four PMUs, and 2) understand local spatial variation in shiner PCB concentrations to support optimization of the long-term sampling design. This study also provided valuable information on the presence of shiner surfperch and other species in the PMUs.
Peninsula Watershed Historical Ecology Study. SFEI Contribution No. 1029. San Francisco Estuary Institute: Richmond, Ca.
2021. (204.95 MB) (21.97 MB)Pollutants of Concern Reconnaissance Monitoring Progress Report, Water Years 2015-2020. SFEI Contribution No. 1061. San Francisco Estuary Institute: Richmond, CA.
2021. (3.22 MB)The San Francisco Bay polychlorinated biphenyl (PCB) and mercury (Hg) total maximum daily loads (TMDLs) call for implementation of control measures to reduce PCB and Hg loads entering the Bay via stormwater. In 2009, the San Francisco Bay Regional Water Quality Control Board (Regional Water Board) issued the first Municipal Regional Stormwater Permit (MRP). This MRP contained a provision aimed at improving information on stormwater pollutant loads in selected watersheds (Provision C.8.) and piloted a number of management techniques to reduce PCB and Hg loading to the Bay from smaller urbanized tributaries (Provisions C.11. and C.12.). To address C8, a previously developed fixed station loads monitoring technique was refined that incorporated turbidity and stage sensors recording at 5-15 minute intervals with the collection of velocity and water samples using both manual and auto sampling techniques to compute loads. In 2015, the Regional Water Board issued the second iteration of the MRP. “MRP 2.0” placed an increased focus on identifying those watersheds, source areas, and source properties that are potentially the most polluted and are therefore most likely to be cost-effective areas for addressing load-reduction requirements.
Pollutants of Concern Reconnaissance Monitoring Progress Report, Water Years 2015 - 2019. SFEI Contribution No. 987. San Francisco Estuary Institute: Richmond, CA.
2020. (1.6 MB)Reconnaissance monitoring for water years 2015, 2016, 2017, 2018 and 2019 was completed with funding provided by the Regional Monitoring Program for Water Quality in San Francisco Bay (RMP). This report is designed to be updated each year until completion of the study. At least one additional water year (2020) is underway. An earlier draft of this report was prepared for the Bay Area Stormwater Management Agencies Association (BASMAA) in support of materials submitted on or before March 31st 2020 in compliance with the Municipal Regional Stormwater Permit (MRP) Order No. R2-2015-0049.
Pilot Study Examining Spatial Differences in Water Quality Between Shoal and Channel Habitats. SFEI Contribution No. 948. San Francisco Estuary Institute: Richmond, CA.
2019. (3.11 MB)Pollutants of Concern Reconnaissance Monitoring Progress Report, Water Years 2015-2018. SFEI Contribution No. 942. San Francisco Estuary Institute: Richmond, CA.
2019. (3.37 MB)Prioritizing Candidate Green Infrastructure Sites within the City of Ukiah: A Demonstration of the Site Locator Tool of GreenPlan-IT. Report prepared for the City of Ukiah Department of Public Works under Supplemental Environmental Project # R1-018-0024. San Francisco Estuary Institute: Richmond. CA.
2019. (1.62 MB)This report describes the application of GreenPlan-IT’s Site Locator Tool to identify and rank candidate GI installation sites within the City of Ukiah. The Site Locator Tool is the first (foundational) tool of the GreenPlan-IT toolkit, meaning that the outputs are required inputs for both the Hydrologic Modeling and Optimization tools. The Site Locator Tool addresses the question: where are the best locations for GI implementation based on local planning priorities?
The Pulse of the Bay 2019: Pollutant Pathways. SFEI Contribution No. 954. San Francisco Estuary Institute: Richmond, CA.
. 2019. (21.42 MB)Per and Polyfluoroalkyl Substances (PFAS) in San Francisco Bay: Synthesis and Strategy. SFEI Contribution No. 867. San Francisco Estuary Institute : Richmond, CA.
2018. (3.2 MB)Petaluma Valley Historical Hydrology and Ecology Study. SFEI Contribution No. 861. San Francisco Estuary Institute: Richmond, CA.
2018. (121.7 MB) (43.68 MB)This study reconstructs the historical landscape of the Petaluma River watershed and documents the major landscape changes that have taken place within the watershed over the past two centuries. Prior to Spanish and American settlement of the region, the Petaluma River watershed supported a dynamic and interconnected network of streams, riparian forests, freshwater wetlands, and tidal marshes. These habitats were utilized by a wide range of plant and animal species, including a number of species that are today listed as threatened or endangered such as Ridgway’s Rail, Black Rail, salt marsh harvest mouse, California red-legged frog, Central California Coast steelhead, and soft bird’s beak (CNDDB 2012, SRCD 2015). Agricultural and urban development beginning in the mid-1800s has significantly altered the landscape, degrading habitat for fish and wildlife and contributing to contemporary management challenges such as flooding, pollutant loading, erosion, and sedimentation. While many natural areas and remnant wetlands still exist throughout the watershed—most notably the Petaluma Marsh—their ecological function is in many cases seriously impaired and their long-term fate jeopardized by climate change and other stressors. Multi-benefit wetland restoration strategies, guided by a thorough understanding of landscape history, can simultaneously address a range of chronic management issues while improving the ecological health of the watershed, making it a better place to live for both people and wildlife.
Pollutants of Concern Reconnaissance Monitoring Water Years 2015, 2016, and 2017. SFEI Contribution No. 840. San Francisco Estuary Institute: Richmond, CA.
2018. (5.55 MB)Passage of fiproles and imidacloprid from urban pest control uses through wastewater treatment plants in northern California. Environmental Toxicology and Chemistry 36, 1473-1482 . SFEI Contribution No. 783.
2017. Urban pest control insecticides, specifically fipronil and its four major degradates (fipronil sulfone, sulfide, desulfinyl, and amide) and imidacloprid, were monitored during drought conditions in eight San Francisco Bay wastewater treatment plants (WWTPs). In influent and effluent, ubiquitous detections were obtained in units of ng/L for fipronil (13-88), fipronil sulfone (1-28), fipronil sulfide (1-5) and imidacloprid (58-306). In influent, 100% of imidacloprid and 62 ± 9% of total fiproles (fipronil and degradates) were present in the dissolved state, with the balance being bound to filter-removable particulates. Targeted insecticides persisted during wastewater treatment, regardless of treatment technology utilized (imidacloprid: 93 ± 17%; total fiproles: 65 ± 11%), with partitioning into sludge (3.7-151.1 μg/kg dry weight as fipronil) accounting for minor losses of total fiproles entering WWTPs. The load of total fiproles was fairly consistent across the facilities but fiprole speciation varied. This first regional study on fiprole and imidacloprid occurrences in raw and treated California sewage revealed ubiquity and marked persistence to conventional treatment of both phenylpyrazole and neonicotinoid compounds. Flea and tick control agents for pets are identified as potential sources of pesticides in sewage meriting further investigation and inclusion in chemical-specific risk assessments.
Per- and polyfluoroalkyl substances (PFAS) in San Francisco Bay wildlife: Temporal trends, exposure pathways, and notable presence of precursor compounds. Chemosphere 185, 1217-1226 . SFEI Contribution No. 839.
2017. Pilot Study of Contaminants of Emerging Concern (CECs) in the Russian River Watershed: Lessons Learned. SFEI Contribution No. 852. San Francisco Estuary Institute: Richmond, CA.
2017. (796.56 KB)Pollutants of concern reconnaissance monitoring final progress report, water years 2015 and 2016. SFEI Contribution No. 817.
2017. (4.01 MB)The Pulse of the Bay: The 25th Anniversary of the RMP. SFEI Contribution No. 841. San Francisco Estuary Institute: Richmond, CA.
. 2017. (15.72 MB)Pollutants of concern (POC) loads monitoring progress report, water years (WYs) 2012, 2013, and 2014. SFEI Contribution No. 741.
2016. (2.58 MB)Pollutants of concern (POC) reconnaissance monitoring final progress report, water year (WY) 2015. SFEI Contribution No. 787.
2016. (2.71 MB)Poly- and perfluoroalkyl substances in wastewater: Significance of unknown precursors, manufacturing shifts, and likely AFFF impacts. Water Research . SFEI Contribution No. 780.
2016. In late 2014, wastewater effluent samples were collected from eight treatment plants that discharge to San Francisco (SF) Bay in order to assess poly- and perfluoroalkyl substances (PFASs) currently released from municipal and industrial sources. In addition to direct measurement of twenty specific PFAS analytes, the total concentration of perfluoroalkyl acid (PFAA) precursors was also indirectly measured by adapting a previously developed oxidation assay. Effluent from six municipal treatment plants contained similar amounts of total PFASs, with highest median concentrations of PFHxA (24 ng/L), followed by PFOA (23 ng/L), PFBA (19 ng/L), and PFOS (15 ng/L). Compared to SF Bay municipal wastewater samples collected in 2009, the short chain perfluorinated carboxylates PFBA and PFHxA rose significantly in concentration. Effluent samples from two treatment plants contained much higher levels of PFASs: over two samplings, wastewater from one municipal plant contained an average of 420 ng/L PFOS and wastewater from an airport industrial treatment plant contained 560 ng/L PFOS, 390 ng/L 6:2 FtS, 570 ng/L PFPeA, and 500 ng/L PFHxA. The elevated levels observed in effluent samples from these two plants are likely related to aqueous film forming foam (AFFF) sources impacting their influent; PFASs attributable to both current use and discontinued AFFF formulations were observed. Indirectly measured PFAA precursor compounds accounted for 33%–63% of the total molar concentration of PFASs across all effluent samples and the PFAA precursors indicated by the oxidation assay were predominately short-chained. PFAS levels in SF Bay effluent samples reflect the manufacturing shifts towards shorter chained PFASs while also demonstrating significant impacts from localized usage of AFFF.
Primary Production in the Delta: Then and Now. San Francisco Estuary and Watershed Science 14 (3).
2016. (864.19 KB)To evaluate the role of restoration in the recovery of the Delta ecosystem, we need to have clear targets and performance measures that directly assess ecosystem function. Primary production is a crucial ecosystem process, which directly limits the quality and quantity of food available for secondary consumers such as invertebrates and fish. The Delta has a low rate of primary production, but it is unclear whether this was always the case. Recent analyses from the Historical Ecology Team and Delta Landscapes Project provide quantitative comparisons of the areal extent of 14 habitat types in the modern Delta versus the historical Delta (pre-1850). Here we describe an approach for using these metrics of land use change to: (1) produce the first quantitative estimates of how Delta primary production and the relative contributions from five different producer groups have been altered by large-scale drainage and conversion to agriculture; (2) convert these production estimates into a common currency so the contributions of each producer group reflect their food quality and efficiency of transfer to consumers; and (3) use simple models to discover how tidal exchange between marshes and open water influences primary production and its consumption. Application of this approach could inform Delta management in two ways. First, it would provide a quantitative estimate of how large-scale conversion to agriculture has altered the Delta's capacity to produce food for native biota. Second, it would provide restoration practitioners with a new approach—based on ecosystem function—to evaluate the success of restoration projects and gauge the trajectory of ecological recovery in the Delta region.
Primary Production in the Sacramento-San Joaquin Delta: A Science Strategy to Quantify Change and Identify Future Potential. SFEI Contribution No. 781.
2016. (4.26 MB)Project: Statistical Design, Analysis and Guidance on the Pajaro and Lower Peninsula Watershed Assessments. TASK 3: GRTS Survey Designs and Sample Draws Memorandum – Pajaro and Lower Peninsula Watersheds. SFEI Contribution No. 763.
2015. (641.94 KB)PCBs in San Francisco Bay: Assessment of the Current State of Knowledge and Priority Information Gaps. SFEI Contribution No. 727. SFEI: Richmond, CA.
2014. (11.99 MB)Pollutants of Concern (POC) Loads Monitoring Data Progress Report: Water Years (WYs) 2012 and 2013. SFEI Contribution No. 708. SFEI: Richmond, CA. pp 1-84.
2014. (1.91 MB)Polybrominated Diphenyl Ethers (PBDEs) in San Francisco Bay: A Summary of Occurrence and Trends. SFEI Contribution No. 713. San Francisco Estuary Institute: Richmond, CA. p 62.
2014. (2 MB)Polychlorinated biphenyls in the exterior caulk of San Francisco Bay Area buildings, California, USA. Environment International 66, 38-43.
2014. (267.06 KB)Pollutants of concern (POC) loads monitoring data progress report, water year (WY) 2012. SFEI: Richmond, CA.
2013. (2.33 MB)Predictors of Mercury Spatial Patterns in San Francisco Bay Forage Fish. Environmental Toxicology and Chemistry 32 (12), 2728-2737.
2013. (919.57 KB)Perfluoroalkyl compounds (PFCs) in wildlife from an urban estuary. Journal of Environmental Monitoring 14, 146-154.
2012. Pollutant Monitoring in the North Richmond Pump Station: A Pilot Study for Potential Dry Flow and Seasonal First Flush Diversion for Wastewater Treatment. San Francisco Estuary Institute: Richmond, CA.
2012. (1.4 MB)Pollutants of Concern (POC) Loads Monitoring Data, Water Year (WY) 2011. San Francisco Estuary Institute: Richmond, CA.
2012. (1.03 MB)The Pulse of the Delta: Linking Science & Management through Regional Monitoring. Aquatic Science Center: Richmond, CA.
. 2012. (17.41 MB)Preliminary Simulations of Sediment Dynamics in the South San Francisco Bay. San Francisco Estuary Institute: Oakland, CA.
2011. (2.83 MB)The Pulse of the Delta: Monitoring and Managing Water Quality in the Sacramento - San Joaquin Delta. Aquatic Science Center: Oakland, CA.
. 2011. (13.18 MB)Petaluma River Impairment Assessment for Nutrients, Sediment/Siltation, and Pathogens Part 1: Existing Information and TMDL Comparison. Aquatic Science Center: Oakland.
2010. (1.89 MB)Procedures for the Collection and Storage of Environmental Samples in the RMP Specimen Bank. San Francisco Estuary Institute: Oakland, CA.
2010. (545.86 KB)Pharmaceuticals and Personal Care Products in Wastewater Treatment Plant Influent and Effluent and Surface Waters of Lower South San Francisco Bay. San Francisco Estuary Institute: Oakland, Ca.
2009. Power Analysis and Optimization of the RMP Status and Trends Program. SFEI Contribution No. 555.
2008. (2.25 MB)Patterns and trends in sediment toxicity in the San Francisco Estuary. Environmental Research 105, 145-155.
2007. (972.24 KB)Patterns and trends in sediment toxicity in the San Francisco Estuary. Environmental Research 105 (1), 145-155 . SFEI Contribution No. 496.
2007. Phytoplankton and bacterial assemblages in ballast water of U.S. military ships as a function of port of origin, voyage time, and ocean exchange practices. Harmful Algae 6, 486-518.
2007. (2.54 MB)A Pilot Study of the Effects of Contaminants on surfperch (Cymatogaster aggregata) in the San Francisco Bay Estuary. San Francisco Estuary Institute.
2007. (1.62 MB)Polychlorinated biphenyls (PCBs) in San Francisco Bay. Environmental Research 105, 67-86 . SFEI Contribution No. 526.
2007. (1 MB)Potential Distribution of Zebra Mussels (Dreissena polymorpha) and Quagga Mussels (Dreissena bugensis) in California Phase 1 Report. A Report for the California Department of Fish and Game. San Francisco Estuary Institute.
2007. (2.37 MB)Preventing the introduction of non-native species with imported oyster shell used for cultch in restoration projects: an inspection, and consideration of future protocols. Proceedings of the 2006 West Coast Native Oyster Restoration Workshop.
2007. (4.48 MB)The Panama Canal: Cutting a canal through Central America. In Bridging Divides: Maritime Canals as Invasion Corridor. . Bridging Divides: Maritime Canals as Invasion Corridor. Kluwer Academic Publishing: Dordrecht, The Netherlands.
2006. The Panama Canal: Species Introductions and the Panama Canal. In Bridging Divides: Maritime Canals as Invasion Corridors. . Bridging Divides: Maritime Canals as Invasion Corridors. Kluwer Academic Publishing: Dordrecht, The Netherlands.
2006. 2006.
Pinole Creek Sediment Source Assessment: Pavon Creeks Sub-basin. SFEI Contribution No. 515. San Francisco Estuary Institute. p 67.
2006. (51.71 MB) (25.63 MB)Polycyclic aromatic hydrocarbon (PAH) contamination in San Francisco Bay: A 10-year retrospective of monitoring in an urbanized estuary. Environmental Research 105, 101-118 . SFEI Contribution No. 492.
2006. (1.22 MB)Pyrethroids, Pyrethrins, and Piperonyl Butoxide in Sediments by High Resolution Gas Chromatography/High Resolution Mass Spectrometry. Journal of Chromatography 7 . SFEI Contribution No. 439.
2006. (120.43 KB)Pelagic Organism Decline. SFEI Contribution No. 511.
2005. Pinole Creek Watershed Sediment Source Assessment. A technical report of the Regional Watershed Program, San Francisco Estuary Institute (SFEI), Oakland, California. (appendix only). SFEI Contribution No. 316. San Francisco Estuary Institute: Oakland, CA.
2005. (1.29 MB)Pinole Creek Watershed Sediment Source Assessment. A technical report of the Regional Watershed Program, San Francisco Estuary Institute (SFEI), Oakland, California. (report only -- no appendix). SFEI Contribution No. 316. San Francisco Estuary Institute: Oakland, CA.
2005. (4.28 MB)Polycyclic aromatic hydrocarbons in bivalves from the San Francisco estuary: Spatial distributions, temporal trends, and sources (1993–2001). Marine Environmental Research 60, 466-488 . SFEI Contribution No. 501.
2005. A practical guide for the development of a wetland rapid assessment method: the California experience. J. of the American Water Resources Association . SFEI Contribution No. 448.
2005. Project Report: 2004 Rapid Assessment Survey for Exotic Species in San Francisco Bay. SFEI Contribution No. 451. San Francisco Estuary Institute: Oakland, Ca.
2005. Pyrethroid Insecticides: An Analysis of Use Patterns, Distributions, Potential Toxicity and Fate in the Sacramento-San Joaquin Delta and Central Valley. SFEI Contribution No. 415. San Francisco Estuary Institute.
2005. (2.99 MB)A PAH Fate Model for San Francisco Bay. Chemosphere . SFEI Contribution No. 114.
2004. (452.15 KB)Phase 2 (2003) Bioassessment of Waterbodies Treated with Aquatic Pesticides. SFEI Contribution No. 117. San Francisco Estuary Insitute: Oakland, CA.
2004. (577.14 KB)Polycyclic aromatic hydrocarbons in San Francisco Estuary sediments. Marine Chemistry 86, 169-184 . SFEI Contribution No. 82.
2004. (1.89 MB)Polycyclic aromatic hydrocarbons in the San Francisco Estuary water column: Sources, spatial distributions, and temporal trends (1993-2001). Chemosphere 909-920 . SFEI Contribution No. 311.
2004. A Proposed Lentic Benthic Bioassessment Procedure for California (Protocol Brief for Biological Sampling in Lakes, Reservoirs, and Ponds). SFEI Contribution No. 315. San Francisco Estuary Institute.
2004. (455.8 KB) 2003.
Potential for increased mercury accumulation in the Estuary food web: Issues in San Francisco Estuary Tidal Wetlands Restoration. San Francisco Estuary and Watershed Science 1 . SFEI Contribution No. 288.
2003. Practical Guidebook to the Control of Invasive Aquatic and Wetland Plants of the San Francisco Bay - Delta Region. SFEI Contribution No. 127. San Francisco Estuary Institute.
2003.