Tissue residues and hazards of water-borne pesticides for federally listed and candidate fishes of the Sacramento-San Joaquin River Delta, California: 1993-1995

Metadata Updated: December 12, 2017

The Sacramento-San Joaquin Delta is formed at the confluence of the south-flowing Sacramento River and the north-flowing San Joaquin River. The Delta provides habitat to many species of aquatic wildlife, including the federally-listed, threatened Delta smelt (Hypomesus transpacificus) and Sacramento winter-run chinook (Oncorhynchus tschawytscha) and the proposed-threatened longfin smelt (Spirinchus thaleichthys) and Sacramento splittail (Pogonichthys macrolepidotus). Many fisheries are in a rapid decline in the Delta, smelt populations are estimated to have declined approximately 90% in the last 20 years, and water contamination is one suspected cause. This report summarizes the results of three studies conducted by the U.S. Fish and Wildlife Service between 1994 and 1995. Biologists surveyed water and fish for metals, trace elements, and organics from the Sacramento and San Joaquin Rivers, to evaluate potential metal and trace element loading, and performed toxic identification evaluations (TIEs) on water from the back sloughs of the Delta. The studies were scoping in nature, designed to screen for potential problems and define the direction and focus of future investigations.

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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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Metadata Created Date December 2, 2017
Metadata Updated Date December 12, 2017

Metadata Source

Harvested from DOI CKAN Harvest Source

Additional Metadata

Resource Type Dataset
Metadata Created Date December 2, 2017
Metadata Updated Date December 12, 2017
Publisher Fish and Wildlife Service
Unique Identifier FWS_ServCat_23401
Brent Frakes
Maintainer Email
Public Access Level public
Bureau Code "010:18"
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
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Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Data Quality true
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Harvest Object Id 70aeb443-2bc2-4ae7-9905-7d90d911f736
Harvest Source Id 9364572a-43e2-4cb5-a0ee-589c8af0e137
Harvest Source Title FWS-servecat
Data First Published 2001-07-01
Homepage URL https://ecos.fws.gov/ServCat/Reference/Profile/23401
Data Last Modified 2001-07-01
Program Code "010:094", "010:028"
Related Documents "https://ecos.fws.gov/ServCat/Reference/Profile/23401"
Source Datajson Identifier true
Source Hash e22f7e50b690d9838b41cb648b7b605674940890
Source Schema Version 1.1
Category "Unpublished Report"

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