USGS Western Ecological Research Center
Information on benthic macroinvertebrate populations is currently available from numerous agencies in disparate databases. To maximize the value of these data, San Francisco State University and the U. S. Geological Survey have combined data from several of these sources into a single comprehensive database. This gives managers a tool to easily extract species or biomass information from these data according to spatial and temporal queries. We included macroinvertebrate abundance, biomass and distribution information collected from the benthic zone of the San Francisco Bay. All macroinvertebrate data have been stored as tables inside a geodatabase and tied to spatial locations via relationship classes. Benthic Macroinvertebrate data were contributed by the following organizations:
Information about this project: provides an overview of the project, including contents, citation, author list and data use restrictions.
Help: Gives detailed information on how to select locations from the data blocks and extract data.
Macroinvertebrate Data Description: lists the various data sets included in the San Francisco Bay Benthic Macroinvertebrate Atlas. A map, brief description, and links to metadata, formatting information, and instructions for updating the data set are included for each.
Additional Data Description: lists additional, non-invertebrate specific data sets that have also been included as part of the Benthic Atlas.
Database Download: Zip file that contains the Benthic Atlas geodatabase, ArcMapTM file, and Help document.
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