Alosa sapidissima
Alosa sapidissima
(American Shad)
Fishes
Native Transplant
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8 results for Alosa sapidissima (American Shad)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
28261 CA Carquinez Strait, near San Francisco1896 18050002 San Pablo Bayestablished
29378 CA Linsoon Bay, a branch of the harbor of San Francisco1873 18050002 San Pablo Bayestablished
28243 CA Linsoon Bay, a branch of the harbor of San Francisco1873 18050002 San Pablo Baycollected
28260 CA San Pablo Bay (north of San Francisco Bay)1896 18050002 San Pablo Bayestablished
1892087 CASan Francisco[No locality description provided]2024 18050002 San Pablo Bay 
1893045 CASan Francisco[No locality description provided]2025 18050002 San Pablo Bay 
620773 CASan FranciscoSan Francisco Bay1873 18050002 San Pablo Bayestablished
28244 CASolanoVallejo1874 18050002 San Pablo Bayestablished

Data Disclaimer: Number of records does not imply species abundance. This summary represent collection records only and may not reflect the actual distribution of established populations. These data are preliminary or provisional and are subject to revision. They are being provided to meet the need for timely best science. The data have not received final approval by the U.S. Geological Survey (USGS) and are provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the data.

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The data represented on this site vary in accuracy, scale, completeness, extent of coverage and origin. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. We highly recommend reviewing metadata files prior to interpreting these data.

Citation information: U.S. Geological Survey. [2025]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [12/5/2025].

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For general information and questions about the database, contact Wesley Daniel. For problems and technical issues, contact Matthew Neilson.