Japanese threadfin bream: A pinkish marine fish used in crab sticks and fisheries across the Indo-Pacific.

The Japanese threadfin bream is a marine fish found from the Red Sea to Japan. It supports commercial fisheries and is often processed into crab sticks or fish meal. This fast-growing species lives in coastal waters over sandy bottoms.

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Maximum length reaches 34 cm
Key ingredient in crab sticks
Found in Indo-Pacific coastal waters
Matures sexually at one year old
Has a long yellow tail filament

What it is

This marine ray-finned fish belongs to the threadfin and whiptail bream family. Its body is pinkish on top, turning silvery on the sides and belly. A golden tint covers the head behind the eye. Eleven or twelve light yellow stripes run horizontally along the flank. A reddish-yellow blotch sits below the front of the lateral line. The dorsal fin is white with a red-edged yellow margin. The upper tail lobe extends into a long yellow filament. Adults usually reach 25 cm, though some grow to 34 cm.

Where it lives

The species inhabits a wide area of the Indo-Pacific. Its distribution stretches from the Red Sea and Tanzania in the west to the Philippines and Japan in the east. Southern limits include Indonesia and Timor-Leste. It also lives in the Persian Gulf and Gulf of Oman. Reports of its presence in the Mediterranean are now attributed to a different species. These fish dwell in coastal waters at depths between 5 and 80 metres. They prefer bottoms composed of mud or sand.

How it lives

Japanese threadfin breams typically swim in schools. They are demersal, meaning they live near the sea floor. Their diet includes other fishes, crustaceans, and molluscs, particularly cephalopods. They also consume polychaete worms and echinoderms. This species grows quickly and has a short lifespan. Individuals reach sexual maturity when they are about one year old. This rapid growth cycle supports their role in local ecosystems and fisheries.

A drawing made by EveryFish from what this page says. It is a diagram, not a picture of the real fish.

Fish and people

Fisheries target this species throughout its range using trawls and gill nets. It is an important resource for both commercial and artisanal fishers. Humans consume the meat, often as an ingredient in manufactured crab sticks. In Pakistan, smaller specimens are processed into fish meal. This utilisation makes it a significant economic species in many coastal communities. The fish is valued for its abundance and ease of capture in shallow waters.

Questions people ask about Japanese threadfin bream

What does the Japanese threadfin bream look like?

It has a pinkish back and silvery belly with yellow horizontal stripes. The upper tail lobe extends into a long yellow filament. A reddish-yellow blotch appears under the lateral line.

Where is this fish found?

It lives in the Indo-Pacific region, from the Red Sea and Tanzania to Japan and Indonesia. It inhabits coastal waters over muddy or sandy bottoms at depths up to 80 metres.

How is this fish used by people?

It is caught by trawling and gill netting for food. The meat is commonly used in crab sticks. Smaller fish are ground into fish meal in places like Pakistan.

Good reading and sources

Where this page comes from

The facts on this page come from the Wikipedia article "Nemipterus japonicus", written by its contributors and used under the CC BY-SA 4.0 licence, and from its Wikidata record (CC0). EveryFish rewrote the text in its own words, with AI assistance, and compares every page with the article to make sure no passage is copied. It may be reused under the same CC BY-SA 4.0 licence with a link back.

It may contain mistakes, and figures change over time. Nothing here is investment or buying advice. If something is wrong, tell us. Last refreshed 2026-11-15.

Photo credits on this page

The small pictures above come from Wikimedia Commons under free licences. Some are cropped to fit.