Fish Identifier
Permit (Trachinotus falcatus)
Fish4502 - Flickr - NOAA Photo Library by SEFSC Pascagoula Laboratory; Collection of Brandi Noble, NOAA/NMFS/SEFSC., via Wikimedia Commons, Public domain
reef

Permit

Trachinotus falcatus

A deep-bodied, silvery flats and reef fish of the western Atlantic, famed among anglers for its wary nature and sickle-shaped fins.

Habitat
Tropical flats & nearshore reefs
Size
40-90 cm
Diet
Carnivore

Spotted a fish like this?

Identify any fish from a photo, free.

Overview

The Permit (Trachinotus falcatus) is a member of the jack family Carangidae, found in warm coastal waters of the western Atlantic from Massachusetts to Brazil, including the Caribbean and Gulf of Mexico. It is closely related to pompanos, sharing their deep, disc-shaped body, but grows considerably larger. Permit are highly regarded flats and reef game fish, prized for their wary behavior and strong fights. They frequent shallow sand and grass flats as well as nearshore reefs and wrecks, often feeding in very shallow water where their tails and fins break the surface.

How to identify it

Key field marks:

  • Deep, disc-shaped, strongly laterally compressed body
  • Bright silvery sides with a subtle bluish-gray back
  • Long, sickle-shaped dorsal and anal fins, elongated in larger adults
  • Deeply forked tail fin
  • Small, blunt head with a short snout
  • Occasionally a faint yellowish tinge on the pelvic and anal fins Permit are distinguished from pompanos by their larger maximum size and taller, more elongated dorsal and anal fin lobes, and from other jacks by their strongly disc-shaped, deep body.

Habitat & range

Permit inhabit warm, shallow coastal waters of the western Atlantic, commonly found over sand and turtle grass flats, around mangrove shorelines, and near nearshore reefs and wrecks. They range from Massachusetts and Bermuda south through the Gulf of Mexico, Caribbean, and Brazil, with the greatest abundance in tropical and subtropical flats habitats such as those of Florida and the Bahamas. Permit often move onto very shallow flats to feed at high tide, retreating to deeper channels, reefs, or wrecks as the tide falls. They tolerate a range of salinities and are occasionally found near estuary mouths.

Behavior & ecology

Permit are wary, often solitary or small-group foragers that root along sandy and grassy flats for crabs, shrimp, and other invertebrates, tipping down head-first in shallow water to feed. Larger adults also frequent reefs and wrecks, feeding on similar benthic prey in deeper water. They are known for their caution around anglers and boats, making them a challenging sight-fishing target. Spawning occurs offshore in warm months, with pelagic eggs and larvae eventually settling in nearshore nursery habitats. As active benthic foragers, Permit help control populations of crabs and other invertebrates on flats and reef habitats.

Frequently asked questions

How do you identify a Permit?

Look for a deep, silvery, disc-shaped body with long, sickle-shaped dorsal and anal fins and a deeply forked tail.

What is the difference between Permit and Pompano?

Permit grow much larger and have taller, more elongated dorsal and anal fin lobes than the smaller, closely related pompano.

What habitat do Permit prefer?

Shallow sand and grass flats, mangrove shorelines, and nearshore reefs and wrecks in warm western Atlantic waters.