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Mercury concentrations and stable isotope ratios of consumers from different subhabitats of wetlands in the San Francisco Bay, CA

Metadata Updated: July 6, 2024

Primary and secondary consumers are important links in the trophic transfer of methylmercury, and their methylmercury concentrations are often measured to assess the potential risk of toxicity to higher trophic level consumers, including humans. A better understanding of the link between methylmercury production in sediments and methylmercury bioaccumulation in tidal marsh primary and secondary consumers will improve the design of contaminant monitoring, remediation, and restoration efforts, thereby protecting human and wildlife health. To advance this goal, we characterized spatial variation in sediment biogeochemistry and methylmercury concentrations of sediments, water, and consumer tissues at a meso-scale among marsh subhabitats. Methylmercury concentrations and stable isotope ratios were measured in 15 genera of tidal marsh primary and secondary consumers (Genera: Assiminea, Myostotella, Geukensia, Macoma, Traskorchestia, Bembidion, Pardosa, Palaemon, Hemigrapsus, Tridentiger, Acanthogobius, Gillichthys, Gambusia, Gasterosteus, and Cottus). Samples were collected in four subhabitats: marsh edges, marsh interiors, 1st order channels, and 3rd order channels during summer of 2006.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Created Date December 12, 2023
Metadata Updated Date July 6, 2024

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date December 12, 2023
Metadata Updated Date July 6, 2024
Publisher U.S. Geological Survey
Maintainer
@Id http://datainventory.doi.gov/id/dataset/1cb1c37860ed28bb2038a6acfb9b62a5
Identifier USGS:656a619cd34e6cfa1a9c2cbd
Data Last Modified 20231206
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://datainventory.doi.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
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Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -122.7914,38.0394,-122.3904,38.2641
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash 9654eade9141bb3c03ddedbf72be7b45029f1db8760b9b7770826eb008d01c3e
Source Schema Version 1.1
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