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  • An Introduction to High-Frequency Nutrient and Biogeochemical Monitoring for the Sacramento– San Joaquin Delta, Northern California

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    An Introduction to High-Frequency Nutrient and Biogeochemical Monitoring for the Sacramento– San Joaquin Delta, Northern California

    U.S. Geological Survey (USGS), Delta Regional Monitoring Program | July 11, 2017...
    Summary

    This report is the first in a series of three reports that provide information about high-frequency (HF) nutrient and biogeochemical monitoring in the...

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  • Assessment of Nutrient Status and Trends in the Delta in 2001–2016: Effects of drought on ambient concentrations and trends

    Assessment of Nutrient Status and Trends in the Delta in 2001–2016: Effects of drought on ambient concentrations and trends

    San Francisco Estuary Institute (SFEI) / Aquatic Science Center (ASC) | March 1, 2018...
    Summary

    Nutrients and the effects of nutrients on water quality in the Sacramento-San Joaquin Delta is a priority focus area for the Delta Regional...

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  • Biology-based Stressor Thresholds

    Biology-based Stressor Thresholds

    California State Water Resources Control Board | October 1, 2011...
    Summary

    The objective of this memo is to describe how biological assessment data (such as those collected using Surface Water Ambient Monitoring Program (SWAMP)...

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  • Blurred lines: Multiple freshwater and marine algal toxins at the land-sea interface of San Francisco Bay, California

    Blurred lines: Multiple freshwater and marine algal toxins at the land-sea interface of San Francisco Bay, California

    Harmful Algae, Elsevier | March 10, 2018...
    Summary

    San Francisco Bay (SFB) is a eutrophic estuary that harbors both freshwater and marine toxigenic organisms that are responsible for harmful algal blooms....

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  • Characterizing and quantifying nutrient sources, sinks and transformations in the Delta: synthesis, modeling, and recommendations for monitoring

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    Characterizing and quantifying nutrient sources, sinks and transformations in the Delta: synthesis, modeling, and recommendations for monitoring

    San Francisco Estuary Institute (SFEI) | January 5, 2016...
    Summary

    The Sacramento-San Joaquin Delta (the Delta) receives high loads of the nutrients nitrogen (N) and phosphorous (P) from wastewater treatment effluent and agricultural...

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  • Delta Regional Monitoring Program Nutrients Synthesis: Modeling to Assist Identification of Temporal and Spatial Data Gaps for Nutrient Monitoring

    Delta Regional Monitoring Program Nutrients Synthesis: Modeling to Assist Identification of Temporal and Spatial Data Gaps for Nutrient Monitoring

    San Francisco Estuary Institute (SFEI) | March 1, 2018...
    Summary

    Nutrient loads are an important water quality management issue in the Sacramento-San Joaquin Delta (Delta) and there is consensus that the current monitoring...

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  • Designing a High-Frequency Nutrient and Biogeochemical Monitoring Network for the Sacramento–San Joaquin Delta, Northern California

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    Designing a High-Frequency Nutrient and Biogeochemical Monitoring Network for the Sacramento–San Joaquin Delta, Northern California

    U.S. Geological Survey (USGS), Delta Regional Monitoring Program | July 11, 2017...
    Summary

    This report is the third in a series of three reports that provide information about how high-frequency (HF) nutrient monitoring may be used...

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  • Dissolved Oxygen in South San Francisco Bay: Variability, Important Processes, and Implications for Understanding Fish Habitat

    Dissolved Oxygen in South San Francisco Bay: Variability, Important Processes, and Implications for Understanding Fish Habitat

    San Francisco Estuary Institute (SFEI) | October 30, 2018...
    Summary

    Dissolved oxygen (DO) is a key water quality parameter that is related to nutrient enrichment in estuaries around the world. In 2017-2018, the San...

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  • Gaps and opportunities in nitrogen pollution policies around the world

    Gaps and opportunities in nitrogen pollution policies around the world

    Nature Sustainability | July 6, 2020...
    Summary

    Nitrogen pollution is an important environmental issue gaining traction in policy circles. However, there is little understanding of current nitrogen policies around the...

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  • Historical Ecology and Landscape Change in the Central Laguna de Santa Rosa

    Historical Ecology and Landscape Change in the Central Laguna de Santa Rosa

    San Francisco Estuary Institute (SFEI) | March 1, 2017...
    Summary

    This study synthesizes a diverse array of data to examine the ecological patterns, ecosystem functions, and hydrology that characterized a central portion of...

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