IUCN threat status:

Least Concern (LC)

Comprehensive Description

Read full entry


  Common names: shad (English), sábalo (Espanol), sardina (Espanol)
Dorosoma petenense (Günther, 1867)

Threadfin shad

Body deep, compressed; snout projecting, rounded; mouth small, at front, with a deep central notch between front of upper jaws, lower jaw enclosed by upper when mouth is closed; sides of lower jaw curved in below when viewed from front; ventral profile strongly convex, with complete scuted keel; last dorsal fin ray long, filamentous in adults; anal fin short, 17-27 rays, origin just behind base of dorsal fin; scales large (41-48 lateral rows), regularly arranged.

Grey-brown to blue-black above; sides silver; a black spot a little behind upper edge of operculum.

Size: 33 cm.

Habitat: common in mouths of rivers; lives in rivers and freshwater lakes.

Depth: 0-10 m.

A west Atlantic species introduced into rivers of the NE Gulf of California.   


Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© Shorefishes of the tropical eastern Pacific online information system. www.stri.org/sftep

Source: Shorefishes of the Tropical Eastern Pacific Online Information System


EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!