Threadfin Shad and Similar Species
Dorosoma petenense
Got a photo? Identify fish instantly with the Fishby app.
Open the appSeveral fish can be confused with Threadfin Shad. Here are the key differences.
Species often confused with {name}
Gizzard Shad
Dorosoma cepedianum
Key differences: Gizzard Shad also have an elongated last dorsal fin ray, but it is typically shorter and less pronounced than in Threadfin Shad. The most reliable distinction is the mouth: Gizzard Shad have a subterminal mouth (snout overhangs the mouth), while Threadfin Shad have a terminal mouth. Gizzard Shad also tend to grow larger and have a more robust body.
Skipjack Herring
Alosa chrysochloris
Key differences: Skipjack Herring are more elongated and streamlined, lack the elongated dorsal fin ray, and have a more pointed snout. They are also typically larger and more predatory.
Explore Threadfin Shad
Identify fish anywhere
Free on iOS, Android, and Web. Photo identification, full species details, and more.