Korean rockfish

Amazing fact

Korean rockfish give birth to tiny fish rather than laying eggs.

茨城県栽培漁業協会

Korean rockfish in its habitat (illustration)

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An illustration based on the real animal.

A little discovery to share.

Korean rockfish give birth to tiny fish rather than laying eggs.

Source茨城県栽培漁業協会 — ソイ類（クロソイ）

THE REAL WORLD

The real Korean rockfish

Scientific name: Sebastes schlegelii
Japanese name: クロソイ
Group: Ocean animals

Order: Scorpaeniformes
Family: Sebastidae
Genus: Sebastes

Facts about the real animal.

It lives on rocky seabeds near the shore.

鳥羽水族館 — クロソイ

Young fish seem to often stay with seaweed drifting near the surface.

鳥羽水族館 — クロソイ

It lives along the coasts from Hokkaido through much of Japan, and in China and Korea.

鳥羽水族館 — クロソイ

How the Korean rockfish lives

They eat fish, crustaceans, and cephalopods. As they grow, they move from bays to the open sea. They move into shallow waters when it is time to give birth.

鶴岡市立加茂水族館宮城県水産技術総合センター

Basic data

Range: Hokkaido, Seto Inland Sea, Suruga Bay, Tosa Bay, China, and Korean Peninsula, and elsewhere

鳥羽水族館

Where the Korean rockfish has been recorded

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

Where it livesJapan Asia Coasts

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: クロソイ
简体中文: 黑鲪
繁體中文: 許氏平鮋
한국어: 조피볼락
Português (Brasil): Cantarilho-chinês
Русский: Тёмный окунь

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

Sources and how we check

鳥羽水族館 — クロソイChecked: 2026-11-04
宮城県水産技術総合センター — 南三陸のさかな図鑑-クロソイChecked: 2026-11-07
鶴岡市立加茂水族館 — クロソイChecked: 2026-11-07
茨城県栽培漁業協会 — ソイ類（クロソイ）Checked: 2026-11-07

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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