One of the 2 snappers on WAnimals

Bony fish · Perciformes · Lutjanidae

Grey Snapper

Lutjanus griseus

Least Concern

The species is abundant and widely distributed; it faces no significant short-term risk. See full glossary

The grey snapper is brownish-grey with reddish glints and two prominent canines in the upper jaw. Juveniles grow among mangrove roots and in seagrass beds, and the adults move out to the reefs. By day it hangs in almost motionless groups under overhangs, and at night it goes out to hunt fish and crustaceans.

Size

30 cm – 89 cm

Lifespan

28 years

Diet

Carnivore

Feeds mainly on other animals.

Activity

Nocturnal

Active mainly at night.

Social structure

Colony

Lives in large concentrations, often for breeding reasons.

Sighting difficulty

Easy

Fun facts

  • It gathers to spawn at particular points on the reef following the lunar cycle, which makes those aggregations easy to find and highly vulnerable to overfishing.
  • It is one of the fish that best demonstrates the value of mangroves: reefs with mangrove nearby hold far larger snapper populations.
  • It tolerates fresh water and can move tens of kilometres up rivers.
  • Its life cycle depends on the mangrove. The juveniles grow up among the submerged roots, and isotope studies have shown that reefs neighbouring well-preserved mangroves hold much larger snapper populations.
  • It is cautious and distrustful, which has given it a reputation among anglers for being hard to fool: it refuses baits and rigs that other snappers accept.
  • It forms spawning aggregations at specific points in the lunar cycle, a behaviour that makes it very vulnerable if those aggregations are fished.
  • It can live close to thirty years, a long time for a medium-sized snapper.
  • Its colour varies from grey to reddish brown depending on the bottom and the state of the animal, and juveniles bear a dark band crossing the eye.

Life cycle & biology

Skeleton type
Vertebrate - internal bony skeleton (fish)
Habitat & environment
Mangroves, seagrass beds and reefs of the western Atlantic; juveniles in estuaries

Sources consulted: https://es.wikipedia.org/wiki/Lutjanus_griseus

Related species

Other species in the catalogue with the most in common with Grey Snapper — same habitat, park, country, tags or family.

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