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Pacific Estuarine Ecosystem Indicator Research (PEEIR) Consortium: Biogeochemistry and Bioavailability Component

EPA Grant Number: R828676C003
Subproject: this is subproject number 003 , established and managed by the Center Director under grant R828676
(EPA does not fund or establish subprojects; EPA awards and manages the overall grant for this center).
Center: Pacific Estuarine Ecosystem Indicator Research (PEEIR) Consortium
Center Director: Anderson, Susan L.
Title: Pacific Estuarine Ecosystem Indicator Research (PEEIR) Consortium: Biogeochemistry and Bioavailability Component
Investigators: Higashi, Richard M. , Fan, Teresa W-M. , Holden, Patricia , Kuivila, Katherine , Nelson, Douglas , Scow, Kate
Current Investigators: Higashi, Richard M. , Cao, Yiping , Collins, Josh , Córdova-Kreylos, Analucis , Fan, Teresa W-M. , Green, Peter , Green, Sarah , Hechinger, Ryan , Holden, Patricia , Hollibaugh, James T. , Huspeni, Todd , LaMontagne, Michael , Lafferty, Kevin , Lay, Mui , Li, Lin , Melack, John , Myers, Monique , Page, Henry M. , Rosso, Pablo , Scow, Kate , Ustin, Susan L. , VanDeWerfhorst, Laurie
Institution: University of California - Davis , U.S. Geological Survey , University of California - Santa Barbara
Current Institution: University of California - Davis , San Francisco Estuary Institute , U.S. Geological Survey , University of California - Santa Barbara , University of Georgia
EPA Project Officer: Levinson, Barbara
Project Period: March 1, 2001 through February 28, 2005
RFA: Environmental Indicators in the Estuarine Environment Research Program (2000)
Research Category: Ecological Indicators/Assessment/Restoration

Description:

Objective:

The overall objective of this research project is to develop field indicators and the knowledge base to help assess the consequences of changes in chemical form of pollutants in tidal marshes. Most organic and inorganic pollutants relentlessly change chemical form due to biogeochemical processes. Different forms in turn define both toxicity and bioavailability. Our general objective is founded on two principles that involve biogeochemistry and bioavailability. Knowledge of factors involved in modifying chemical form and bioavailability is critical for accurately assessing and predicting organismal exposure and higher order ecotoxicological effects.

This research project's particular emphasis is on the assessment of metals and organic pollutant bioavailability in relation to sedimentary lower trophic-level biomarkers. This emphasis on rooted plants and sediment microbes is because they often are the entry point of pollutants into the food chain and are major drivers of the biogeochemistry of the tidal marsh. The specific objective of this research project is to uncover the chemical, biochemical, and biotic markers that herald the bioavailability, transport, and/or biotransformation of selected metal and organic pollutants. These markers, in appropriate concert with others generated by PEEIR, can comprise indicators of pollutant stress on marsh ecosystems.

Publications and Presentations:

Publications have been submitted on this subproject: View all 46 publications for this subproject | View all 133 publications for this center

Journal Articles:

Journal Articles have been submitted on this subproject: View all 14 journal articles for this subproject | View all 34 journal articles for this center

Supplemental Keywords:

bioavailability, transformations, biogeochemistry, selenium, mercury, pesticides, watersheds, estuary, ecological effects, ecosystem indicators, aquatic, integrated assessment, EPA Region 9. , Ecosystem Protection/Environmental Exposure & Risk, ENVIRONMENTAL MANAGEMENT, Water, RFA, ECOSYSTEMS, Ecosystem/Assessment/Indicators, Risk Assessment, exploratory research environmental biology, estuarine research, Terrestrial Ecosystems, Ecological Monitoring, Ecological Indicators, Ecological Effects - Environmental Exposure & Risk, Ecosystem Protection, Aquatic Ecosystems, bioavailability, biomarkers, water quality, aquatic ecosystem, anthropogenic stresses, ecosystem indicators, ecological restoration, ecological risk assessment, environmental indicators, bioindicator, coastal ecosystems, wetlands, ecosystem restoration, wetland ecosystem, trophic effects, ecosystem assessment, biogeochemistry, estuaries, nutrients, aquatic ecology

Progress and Final Reports:
2002 Progress Report
2003 Progress Report
2004 Progress Report
Final Report


Main Center Abstract and Reports:
R828676    Pacific Estuarine Ecosystem Indicator Research (PEEIR) Consortium

Subprojects under this Center: (EPA does not fund or establish subprojects; EPA awards and manages the overall grant for this center).
R828676C000 Pacific Estuarine Ecosystem Indicator Research (PEEIR) Consortium: Administration and Integration Component
R828676C001 Pacific Estuarine Ecosystem Indicator Research (PEEIR) Consortium: Ecosystem Indicators Component
R828676C002 Pacific Estuarine Ecosystem Indicator Research (PEEIR) Consortium: Biological Responses to Contaminants Component: Biomarkers of Exposure, Effect, and Reproductive Impairment
R828676C003 Pacific Estuarine Ecosystem Indicator Research (PEEIR) Consortium: Biogeochemistry and Bioavailability Component

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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.

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