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  • Title

    The effects of early hypersaline acclimation due to climate change on the toxicity of pyrethroid, an insecticide, in salmonids.

    Lead University of California - Riverside [UC Riverside]
    Description Sea level rise and drought are expected to result in hypersaline waterways in the Delta. Endangered Chinook salmon and Steelhead trout go through smoltification to be able to live and mature in saline environments. However, with salinities and temperatures increasing in historically freshwater areas, these fish may be facing new stressors. Pesticide runoff into the Delta is common due to the urbanization and agriculture of many regions and can adversely affect fish. Additionally, previous research has shown that salinity exposure increases the toxicity of contaminants in anadromous fish, and it is had been demonstrated that bifenthrin, a common insecticide in the Bay, can have endocrine disrupting effects on juvenile salmonids. This project will examine the impacts of hypersaline conditions, various temperatures, and exposure to bifenthrin on the development and survival of juvenile Chinook salmon and Steelhead trout. Specifically, it will: Test the impacts of premature hypersaline acclimation and temperature on the survivial and smoltification process of a range of juvenile salmonids; Test the combined impacts of premature hypersaline acclimation, temperature, and bifenthrin exposure on smoltification, survival and behavior;and Predict the population level effects of drought and pesticide runoff on the health of endangered salmonids Additionally, this research will provide information to CA Department of Pesticide Regulation for potential pesticide management in the Delta, as well as to the CA Department of Fish and Wildlife for conservation practices of endangered juvenile salmonids in the Delta.
    Science topics Salinity
    Updated April 29, 2022
  • Title

    Aquatic Invasive Species Program [CDFW]

    Lead California Department of Fish and Wildlife [CDFW]
    Description The mission of the Invasive Species Program is to reduce the negative effects of non-native invasive species on the wildlands and waterways of California. We are involved in efforts to prevent the introduction of these species into the state, detect and respond to introductions when they occur, and prevent the spread of invasive species that have become established. Our projects address problems with introduced animals and plants, both terrestrial and aquatic. More fundamentally, we try to identify and address the ways by which the species are introduced, typically inadvertently, by human activities. Studies show that preventing introductions is the most effective and cost-efficient way to manage invasive species. We conduct our work in coordination with other government agencies and non-governmental organizations.
    Science topics Habitat, Invasive / non native species, Main channels, Managed ponds, Mollusks, Other species, Recreation & tourism, Saltwater / freshwater marshes, Sloughs, Submerged aquatic vegetation, Vessels and shipping channels
    Updated July 31, 2024
  • Title

    Groundwater Ambient Monitoring and Assessment Program [GAMA]

    Lead U.S. Geological Survey [USGS]
    Description The Groundwater Ambient Monitoring and Assessment (GAMA) Program is California's comprehensive groundwater quality monitoring program that was created by the State Water Resources Control Board (State Water Board) in 2000. It was later expanded by Assembly Bill 599 - the Groundwater Quality Monitoring Act of 2001. AB 599 required the State Water Board, in coordination with an Interagency Task Force (ITF) and Public Advisory Committee (PAC) to integrate existing monitoring programs and design new program elements as necessary, resulting in a publicly accepted plan to monitor and assess groundwater quality in basins that account for 95% of the state's groundwater use. The GAMA Program is based on interagency collaboration with the State and Regional Water Boards, Department of Water Resources, Department of Pesticide Regulations, U.S. Geological Survey, and Lawrence Livermore National Laboratory, and cooperation with local water agencies and well owners.
    Science topics Groundwater, Salinity, Hg and methyl mercury, Hydrocarbons / polycyclic aromatic hydrocarbons PAH, Flame retardants, Endocrine disruptors, Lead, Arsenic, Selenium, Constituent of emerging concern CEC, Nitrogen / ammonia, Other discharge contaminants, Conductivity, Habitat, Fecal coliform / E. coli
    Updated April 29, 2022
  • Title

    Stream Pollution Trends Monitoring Program [SPOT]

    Lead California State Water Resources Control Board [SWRCB]
    Description The SPoT project is primarily funded by SWAMP. SPoT monitors trends in sediment toxicity and sediment contaminant concentrations in selected large rivers throughout California and relates contaminant concentrations and toxicity to watershed land uses. It is designed to improve our understanding of watersheds and water quality by monitoring changes in both over time, evaluating impacts of development, and assessing the effectiveness of regulatory programs and conservation efforts at the watershed scale.
    Science topics Wastewater discharge, Dredging, Urban development, Bedload, Chemistry, Toxicity, Energy and mines, Vessels and shipping channels
    Updated April 29, 2022
  • Title

    Surface Water Protection Program

    Lead California Department of Pesticide Regulation [DPR]
    Description CA Department of Pesticide Regulation is the lead agency for regulating the registration, sales and use of pesticides in California. It is required by law to protect the environment, including surface waters, from environmentally harmful pesticides by prohibiting, regulating, or controlling the uses of such pesticides. The Surface Water Protection Program addresses both agricultural and nonagricultural sources of pesticide residues in surface waters. It has preventive and response components that reduce the presence of pesticides in surface waters. The preventive component includes local outreach to promote management practices that reduce pesticide runoff. Prevention also relies on DPR's registration process in which potential adverse effects to surface water quality, particularly those in high-risk situations are evaluated. The response component includes mitigation options to meet water quality goals, recognizing the value of self-regulating efforts to reduce pesticides in surface water as well as regulatory authorities of DPR, the State Water Resources Control Board (SWRCB) and the Regional Water Quality Control Boards (RWQCB).
    Science topics Surface water / flow, Groundwater, Toxicity, Endocrine disruptors, Copper, Constituent of emerging concern CEC, Insecticides, Rodenticides, Herbicides, Fungicides, Main channels, Sloughs, Backwater, Non-forested vegetation, Habitat
    Updated April 29, 2022