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Big-scaled bream (Lutjanus johnii) — Lutjanidae

Big-scaled bream

Lutjanus johnii
Family: Lutjanidae
LC · Least Concern

The Big-scaled bream (Lutjanus johnii) is a brackish-water fish of the family Lutjanidae that grows up to 97 cm.

Length
97 cm
Water
Brackish
Depth
0.0–80.0 m
Diet
Carnivore
Behaviour
Solitary
Activity
Nocturnal
Body shape
Torpedo-shaped
Substrate
Stone or rock
Danger
Harmless
Range
Indo-West Pacific; coral reefs, juveniles in mangrove estuaries.
Edibility
Commonly eaten

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Description

John's snapper is a large snapper of the family Lutjanidae from the Indo-West Pacific. The species grows to about 97 cm and has a yellow-bronze body in which each scale bears a dark spot, together often forming a pattern of oblique rows, and a conspicuous black blotch high on the flank above the lateral line. Adults inhabit coral reefs; juveniles live in mangrove estuaries and sometimes enter fresh water. As a predator it hunts fishes, crustaceans and cephalopods. John's snapper is an important food fish. Large reef specimens can locally contain ciguatera; do not eat those.

Frequently asked questions

How do you recognise the Big-scaled bream?

The Big-scaled bream has a torpedo-shaped body, is mainly yellow-gold and shows a spots pattern. Dark spot on every scale and a black flank blotch; large specimens may contain ciguatera.

Where does the Big-scaled bream live?

The Big-scaled bream lives in brackish water and is mostly found around stony or rocky ground. Indo-West Pacific; coral reefs, juveniles in mangrove estuaries.

How big does the Big-scaled bream get?

The Big-scaled bream grows to a maximum of about 97 cm. On average the species is around 50 cm.

Is the Big-scaled bream dangerous to humans?

No, the Big-scaled bream is harmless to humans. The flesh can contain ciguatera in tropical areas; do not eat large reef specimens from risk areas. In case of poisoning (tingling, gastrointestinal symptoms, temperature-reversal sensation), seek medical care.

Is the Big-scaled bream edible?

Yes, the Big-scaled bream is commonly eaten.

More photos

Big-scaled bream (Lutjanus johnii) — Lutjanidae — 2
Williams, Jeffrey T. (CC0 1.0) via GBIF — USNM
Big-scaled bream (Lutjanus johnii) — Lutjanidae — 3
Wikimedia Commons — George Henry Ford (Public domain)
Big-scaled bream (Lutjanus johnii) — Lutjanidae — 4
iNaturalist ((c) Bob Joynes, some rights reserved (CC BY-NC))
Big-scaled bream (Lutjanus johnii) — Lutjanidae — 5
Williams, Jeffrey T. (CC0 1.0) via GBIF — USNM
Fin

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All data

Identification

English name
Big-scaled bream verified
Scientific name
Lutjanus johnii
Family
Lutjanidae
Other names
Fingermark bream; Fingermark seaperch; Golden snapper; John's snapper; Moses perch; Snapper; John's seaperch; John's sea-perch; Mangrove red snapper; Mangrove snapper; One spot snapper; Red bream verified

Appearance

Size class
Extra large verified
Max length (cm)
97.0 verified
Average length (cm)
50.0 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Yellow / gold inferred
Pattern
Spots inferred
Tail shape
Straight inferred
Mouth position
Terminal inferred
Lips
Thick / fleshy inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Brackish sourced
Substrate
Stone or rock sourced
Min depth (m)
0.0 verified
Max depth (m)
80.0 verified
Natural range
Indo-West Pacific; coral reefs, juveniles in mangrove estuaries. inferred
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Fishes, crustaceans and cephalopods sourced
Social behaviour
Solitary inferred
Territorial
No inferred
Activity
Nocturnal inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
Dark spot on every scale and a black flank blotch; large specimens may contain ciguatera. sourced

For anglers

Edibility
Commonly eaten sourced
Fishing method
Fishing with natural bait (fish, shrimp, worm) or lures close to reef and rock structures. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced
First aid
The flesh can contain ciguatera in tropical areas; do not eat large reef specimens from risk areas. In case of poisoning (tingling, gastrointestinal symptoms, temperature-reversal sensation), seek medical care. sourced

Status & sources

Sources
FishBase via GBIF (DwC-A), CC-BY-NC 4.0

Same genus Lutjanus

More from the family Lutjanidae

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