Brian Bergamaschi
Dr. Brian Bergamaschi is a research biogeochemist with the USGS California Water Science Center and adjunct Faculty at California State University Sacramento.
Brian received a Ph.D. in Chemical Oceanography from the University of Washington, in Seattle, WA, where he specialized in analyzing the sources and fates of natural organic material in the environment. His main interests are in understanding processes of carbon and nutrient cycling in aquatic environments and related biogeochemical processes. His particular interest is developing methods to quantify interactions between physical and biogeochemical processes. His research ranges in scale from light-mediated molecular transformations, to tidally driven wetland exchange, to effects of changing continental-scale nutrient fluxes on coastal carbon processes. His current projects largely focus on aquatic biogeochemical processes, aquatic habitat quality and carbon cycling in aquatic systems.
Science and Products
Trends in Dissolved Organic Carbon (DOC) in the Sacramento-San Joaquin Delta
Methylmercury and Low Dissolved Oxygen Events in Suisun Marsh
Mercury and Dissolved Organic Matter in Delta Wetlands
Sources of Disinfection Byproduct-forming Material in the State Water Project
High-Speed Mapping of Nutrient Distributions and Water Quality Survey - Lower South San Francisco Bay
Dynamics of zooplankton in the Cache Slough Complex
Phytoplankton production and nutrient transformations in shallow water wetland habitats
Interactions Between Physical Processes and Suspended Sediment Quality in Relation to Spawning Migrations of Delta Smelt
Causes and Relevance of Phytoplankton Blooms in the Northern Sacramento-San Joaquin Delta
Effects of Aquatic Vegetation on Water Quality and Residence Time in the Bay-Delta
Transport of dissolved organic matter by river networks from mountains to the sea: a re-examination of the role of flow across temporal and spatial scales
Optical signals of water for prediction of wastewater contamination, human-associated bacteria, and fecal indicator bacteria in surface water of Great Lake tributaries from 2011 to 2016
Spatial assessment of nutrients and water-quality constituents in Suisun Marsh with the salinity control gate reoperation experiment; a Delta Smelt Resiliency Strategy experiment 2018
Assessment of water-quality in the California Sacramento-San Joaquin Delta during a North Delta directed flow action: August - October 2018
Assessment of nutrients and water-quality constituents in the North Delta during Yolo Bypass flooding events in March 2017
Assessment of nutrients and water-quality constituents at the Sacramento-San Joaquin River Confluence during a phytoplankton bloom in July 2017
High-Resolution Measurements to Identify Effects of Aquatic Vegetation on Water Quality and Stratification
Assessing spatial variability of nutrients and related water quality constituents in the California Sacramento-San Joaquin Delta at the landscape scale: 2018 High resolution mapping surveys (ver. 2.0, October 2023)
High-speed, continuous water quality mapping of Utah Lake, Salt Lake City, UT
Continuous underway water quality and water isotope measurements in a hydrodynamically complex tidal environment
Trihalomethane precursors: Land use hot spots, persistence during transport, and management options
Hydrologic export is a major component of coastal wetland carbon budgets
Tidal wetland gross primary production across the continental United States, 2000–2019
The use of stable isotope-based water age to evaluate a hydrodynamic model
Spatial variability of phytoplankton in a shallow tidal freshwater system reveals complex controls on abundance and community structure
Procedures for using the Horiba Scientific Aqualog® fluorometer to measure absorbance and fluorescence from dissolved organic matter
Direct and indirect effects of tides on ecosystem-scale CO2 exchange in a brackish tidal marsh in Northern California
Potential for negative emissions of greenhouse gases (CO2, CH4 and N2O) through coastal peatland re-establishment: Novel insights from high frequency flux data at meter and kilometer scales
Using paired in situ high frequency nitrate measurements to better understand controls on nitrate concentrations and estimate nitrification rates in a wastewater-impacted river
Irrigation as a fuel pump to freshwater ecosystems
Dissolved organic matter compositional change and biolability during two storm runoff events in a small sgricultural watershed
Synthesis of data from high-frequency nutrient and associated biogeochemical monitoring for the Sacramento–San Joaquin Delta, northern California
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Trends in Dissolved Organic Carbon (DOC) in the Sacramento-San Joaquin Delta
Methylmercury and Low Dissolved Oxygen Events in Suisun Marsh
Mercury and Dissolved Organic Matter in Delta Wetlands
Sources of Disinfection Byproduct-forming Material in the State Water Project
High-Speed Mapping of Nutrient Distributions and Water Quality Survey - Lower South San Francisco Bay
Dynamics of zooplankton in the Cache Slough Complex
Phytoplankton production and nutrient transformations in shallow water wetland habitats
Interactions Between Physical Processes and Suspended Sediment Quality in Relation to Spawning Migrations of Delta Smelt
Causes and Relevance of Phytoplankton Blooms in the Northern Sacramento-San Joaquin Delta
Effects of Aquatic Vegetation on Water Quality and Residence Time in the Bay-Delta
Transport of dissolved organic matter by river networks from mountains to the sea: a re-examination of the role of flow across temporal and spatial scales
Optical signals of water for prediction of wastewater contamination, human-associated bacteria, and fecal indicator bacteria in surface water of Great Lake tributaries from 2011 to 2016
Spatial assessment of nutrients and water-quality constituents in Suisun Marsh with the salinity control gate reoperation experiment; a Delta Smelt Resiliency Strategy experiment 2018
Assessment of water-quality in the California Sacramento-San Joaquin Delta during a North Delta directed flow action: August - October 2018
Assessment of nutrients and water-quality constituents in the North Delta during Yolo Bypass flooding events in March 2017
Assessment of nutrients and water-quality constituents at the Sacramento-San Joaquin River Confluence during a phytoplankton bloom in July 2017
High-Resolution Measurements to Identify Effects of Aquatic Vegetation on Water Quality and Stratification
Assessing spatial variability of nutrients and related water quality constituents in the California Sacramento-San Joaquin Delta at the landscape scale: 2018 High resolution mapping surveys (ver. 2.0, October 2023)
High-speed, continuous water quality mapping of Utah Lake, Salt Lake City, UT
Continuous underway water quality and water isotope measurements in a hydrodynamically complex tidal environment
Trihalomethane precursors: Land use hot spots, persistence during transport, and management options
Hydrologic export is a major component of coastal wetland carbon budgets
Tidal wetland gross primary production across the continental United States, 2000–2019
The use of stable isotope-based water age to evaluate a hydrodynamic model
Spatial variability of phytoplankton in a shallow tidal freshwater system reveals complex controls on abundance and community structure
Procedures for using the Horiba Scientific Aqualog® fluorometer to measure absorbance and fluorescence from dissolved organic matter
Direct and indirect effects of tides on ecosystem-scale CO2 exchange in a brackish tidal marsh in Northern California
Potential for negative emissions of greenhouse gases (CO2, CH4 and N2O) through coastal peatland re-establishment: Novel insights from high frequency flux data at meter and kilometer scales
Using paired in situ high frequency nitrate measurements to better understand controls on nitrate concentrations and estimate nitrification rates in a wastewater-impacted river
Irrigation as a fuel pump to freshwater ecosystems
Dissolved organic matter compositional change and biolability during two storm runoff events in a small sgricultural watershed
Synthesis of data from high-frequency nutrient and associated biogeochemical monitoring for the Sacramento–San Joaquin Delta, northern California
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.