Jacks & Trevally
Threadfin Trevally
Alectis ciliaris
SaltwaterCarangidaeLeast Concern
About
The Threadfin Trevally is a striking fish characterized by its elongated, thread-like dorsal and anal fin filaments, especially prominent in juveniles. Adults are generally silvery with a slightly bluish tinge and are fast-swimming predators.
- Average size
- Up to 59 inches, commonly 15-30 inches; up to 57 lbs
- Colors
- Silvery, bluish-gray, sometimes with darker blotches; juveniles have long, thread-like filaments that are often dark or black.
- Diet
- Carnivorous; feeds on small fish, crustaceans, and cephalopods.
- Region
- Found in tropical and subtropical waters worldwide, including the Gulf of Mexico and occasionally along the Atlantic coast of the southeastern United States.