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Ocean animals

Red seabream

Amazing fact

The red sea bream has strong, sharp spines in its dorsal fin.

東京都島しょ農林水産総合センター
Red seabream in its habitat (illustration)

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An illustration based on the real animal.

A little discovery to share.

The red sea bream has strong, sharp spines in its dorsal fin.

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THE REAL WORLD

The real Red seabream

Scientific name
Pagrus major
Japanese name
マダイ
Group
Ocean animals
Order
Spariformes
Family
Sparidae
Genus
Pagrus
Facts about the real animal.
01

Called the 'king of fish', it lives in coastal waters from southern Hokkaido to the South China Sea.

02

Its body is red, with small cobalt-blue spots scattered over the upper part of its sides.

03

Both of its jaws have well-developed molar teeth, and it mainly eats crustaceans such as shrimp and crabs.

How the Red seabream lives

From spring to summer, it grows in places such as seaweed beds in shallow coastal water. As the water cools in autumn, growing juveniles move to deeper water offshore. Adult red sea bream return to shallow water in spring to lay eggs.

東京都島しょ農林水産総合センター

Basic data

Size
Total length: up to 100 cm
Diet
Crustaceans including shrimp and crabs
Range
Coastal areas from southern Hokkaido to southern Korea and the South China Sea
東京都島しょ農林水産総合センター

Where the Red seabream has been recorded

World map with dots where the Red seabream has been recorded
Each dot marks a place with observations or specimens shared on GBIF. Some records are of animals that strayed or were brought by people, so the dots are not always where the animal lives.

Records: GBIF.org (CC0 and CC BY 4.0 records, retrieved 2026-11-07). Map: Natural EarthSee the records on GBIF

Where it livesJapanAsiaCoastsOcean

Watch wild animals from a distance. Do not touch or feed them, and take care of the places where they live.

Names around the world

日本語
マダイ
简体中文
真鲷
繁體中文
日本真鯛
한국어
참돔

Names come from Wikidata and iNaturalist records. Where a language has no recorded name, we use the scientific name.

Sources and how we check

We check each fact against its source. The illustrations simplify how the real animal looks.

The classification (class, order, family, genus) follows Wikidata records, checked against GBIF. Classifications can change as research goes on.

The basic data are the values given in each source. They vary with how the animal is measured, whether it is male or female, and whether it lives in the wild or in captivity.

This page was translated from the original Japanese with the help of AI.

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