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Ocean animals

Indo-Pacific tarpon

Amazing fact

In low-oxygen water, the Indo-Pacific tarpon can gulp surface air and use its swim bladder to supplement its oxygen supply.

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Indo-Pacific tarpon in its habitat (illustration)

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An illustration based on the real animal.

A little discovery to share.

In low-oxygen water, the Indo-Pacific tarpon can gulp surface air and use its swim bladder to supplement its oxygen supply.

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THE REAL WORLD

The real Indo-Pacific tarpon

Scientific name
Megalops cyprinoides
Japanese name
イセゴイ
Group
Ocean animals
Order
Elopiformes
Family
Megalopidae
Genus
Megalops
Facts about the real animal.
01

A fish of Japanese seas, the southern Korean Peninsula and Taiwan, and the warm waters of the Indian Ocean and western Pacific.

02

It lives near the surface along warm coasts.

03

Young fish move into brackish and fresh water.

How the Indo-Pacific tarpon lives

Adults often eat crustaceans, insects and fish beneath floating aquatic plants. Spawning peaks in the summer wet season in coastal seas and estuaries. The larvae have flat, transparent, ribbon-like bodies. Juveniles feed on plankton.

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Basic data

Range
Yakushima, the Ryukyu Islands, southern Korean Peninsula, Taiwan, and warm waters of the Indian to western Pacific Oceans, and elsewhere
鳥羽水族館

Where the Indo-Pacific tarpon has been recorded

World map with dots where the Indo-Pacific tarpon 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
イセゴイ
简体中文
大海鲢
繁體中文
大海鰱
Português (Brasil)
Tarpão-do-Indo-Pacífico
Bahasa Indonesia
Bulan-bulan
Tiếng Việt
Cá cháo lớn

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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