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Ocean animals

Blacktip grouper

Amazing fact

The blacktip grouper changes from female to male as it grows.

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

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An illustration based on the real animal.

A little discovery to share.

The blacktip grouper changes from female to male as it grows.

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THE REAL WORLD

The real Blacktip grouper

Scientific name
Epinephelus fasciatus
Japanese name
アカハタ
Group
Ocean animals
Order
Perciformes
Family
Serranidae
Genus
Epinephelus
Facts about the real animal.
01

A grouper that lives on rocky reefs and coral reefs along the coast.

02

It lives in Japanese waters from Toyama Bay and Sagami Bay to the Ryukyu Islands, and across a wide area of the Indian and Pacific Oceans.

03

It was given its name because its body is red.

How the Blacktip grouper lives

It catches and eats fish, shrimp and crabs. It is often hidden in gaps between rocks. It lays eggs mainly in summer. The long dorsal and pelvic fin spines of larvae shorten as the young settle on the seabed.

東京都島しょ農林水産総合センター沖縄美ら海水族館

Basic data

Range
Izu Islands, Ogasawara Islands, Ryukyu Islands, southern Korean Peninsula, southern Taiwan, Hong Kong, the Indo-Pacific, and elsewhere
鳥羽水族館

Where the Blacktip grouper has been recorded

World map with dots where the Blacktip grouper 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

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
アカハタ
简体中文
横条石斑鱼
繁體中文
橫帶石斑魚
한국어
홍바리
Français
Rougette
Português (Brasil)
Garoupa-de-faixas-vermelhas
Bahasa Indonesia
Kerapu sendok

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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