Alosa sapidissima
Alosa sapidissima
(American Shad)
Fishes
Native Transplant
Collection Info
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18 results for Alosa sapidissima (American Shad)
Download Data

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
28256 CAMarinDrakes Bay (just north of San Francisco)1896 18050005 Tomales-Drake Baysestablished
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
1890930 CASolano[No locality description provided]2025 18050001 Suisun Bay 
1890966 CASolano[No locality description provided]2025 18050001 Suisun Bay 
1893073 CASolano[No locality description provided]2025 18050001 Suisun Bay 
1892088 CASolano[No locality description provided]2025 18050001 Suisun Bay 
1892969 CASolano[No locality description provided]2025 18050001 Suisun Bay 
1892977 CASolano[No locality description provided]2025 18050001 Suisun Bay 
747271 CASolanoCarquinez Strait, 1/2 mile above Crockett toll bridge1962 18050001 Suisun Bayestablished
613464 CASolanoCarquinez Strait, 1/2 mile above Crockett toll bridge1962 18050001 Suisun Bayestablished
163510 CASolanoSuisun Marsh [wetlands between Grizzly Bay and Fairfield]2002 18050001 Suisun 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. [2026]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [2/22/2026].

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