Japanese anchovy
Fish · Last reviewed 2026-08-11
The forage anchovy of the north-west Pacific, supporting one of the world's largest fisheries and most of the predatory fish of the Japanese and Korean coasts.
A supporting record, not a fishing profile
This page is here so FishingHQ can describe a biological relationship accurately — usually because a fish covered elsewhere on the site feeds on this. It covers what it is, where it lives and the evidence behind that relationship, and deliberately nothing about methods, bait or tackle. Its presence here is not a statement that anybody fishes for it.
The Japanese anchovy fills the same position in the north-west Pacific that the northern anchovy fills off California and the European anchovy fills in the Mediterranean: an abundant, short-lived, plankton-feeding shoaling fish that everything larger depends on.
It supports an extremely large commercial fishery and is deeply embedded in the food culture of the region, eaten at every life stage from the transparent larvae sold as shirasu to dried adults used for stock.
Ecologically it is the link between plankton production in the Kuroshio and Oyashio current systems and the predator community above it. Japanese sea bass, amberjack, mackerel and a long list of others feed on it, and anchovy abundance in the region varies on decadal cycles in a pattern comparable to the sardine-anchovy alternation seen in other upwelling systems.
The record exists so that the diets of Japanese sea bass and Japanese amberjack can name their prey directly.
Identification
FishingHQ holds no photograph of this species whose identity and licensing it can vouch for, so it is not showing one. Misidentified fish photographs teach identification wrongly, and a picture with an unchecked caption would be worse than none. The identification points below are what to look at instead.
- Scientific name
- Engraulis japonicus
- Family
- Engraulidae
- Water
- Saltwater
- Conservation status
- Least Concern
- Regions
- East Asia
- Slender, rounded silver body with a broad bright silver lateral band.
- Large mouth extending well behind the eye, beneath a pointed overhanging snout.
- Blue-green back with a metallic sheen; belly smooth and unkeeled.
- Anal fin short and set well back, distinguishing it from the sardines it shoals alongside.
Size
- Typical
- 10–15 cm
- Large
- up to about 18 cm
Lifecycle and reproduction
Matures within the first year and lives two to three years at most. As with other anchovies, populations depend almost entirely on current recruitment and respond quickly to ocean conditions.
Spawns in batches across an extended season, chiefly in spring and autumn depending on latitude, releasing buoyant ellipsoidal eggs into coastal and shelf water.
Feeding and senses
A planktivore feeding on copepods and other small planktonic crustaceans, using both particulate feeding and filter feeding depending on prey density.
Vision for particulate feeding and lateral-line schooling. The species is strongly attracted to light at night, which is the basis of the commercial fishery that targets it.
Through the year
Migrates seasonally with water masses along the Japanese and Korean coasts, moving north with warming water and south again in autumn. Predator fisheries track the movements closely.
Distribution
The north-west Pacific around Japan, Korea, eastern China and Taiwan, and into the Sea of Japan and the Yellow Sea, in coastal and shelf waters.
This is a biological range — where the species occurs, not a prediction that you will catch one. To browse the fishing geography FishingHQ holds, start at fishing places.
Why anglers care
Not a rod-and-line target. Its significance to anglers is as the forage species around which the region's coastal predator fishing is organised, and as a bait fish supplied commercially.
Handling and returning
Very soft and quick to spoil, and handled by anglers only as commercially supplied bait rather than caught and kept alive. Frozen anchovy used as bait deteriorates rapidly once thawed and should not be refrozen.
Where to go next
Similar and related fish
What these connections rest on (1)
Scientific evidence — 1 connection
Supported by peer-reviewed research or fisheries science. The sources are listed and can be checked.
Japanese sea bass
Recorded diet evidence identifies Engraulis japonicus as a food item of this predator at species level. The edge is written at that granularity and no further.
- FishBase: a global information system on fishes — Froese, R. and D. Pauly, eds. — FishBase Consortium (Scientific institute)Relied on for: Food items recorded for this predator, including Engraulis japonicus.States this directlyPassage read and verified
- FAO Species Identification Guides for Fishery Purposes and the FAO Species Catalogues — Food and Agriculture Organization of the United Nations (Scientific institute)Relied on for: Species account describing the diet of this predator in the region where Engraulis japonicus occurs.Background and mechanism onlyCitation checked — the work exists and is described correctly
Where you will find it
What these connections rest on (1)
Scientific evidence — 1 connection
Supported by peer-reviewed research or fisheries science. The sources are listed and can be checked.
Korea
A distribution association between an animal and a described water body, which is what the `inhabits` predicate is for — the kind of water rather than a named mark.
- FishBase: a global information system on fishes — Froese, R. and D. Pauly, eds. — FishBase Consortium (Scientific institute)Relied on for: Distribution, habitat association and depth range recorded for the species, including its occurrence in the water body concerned.States this directlyPassage read and verified
- The IUCN Red List of Threatened Species — International Union for Conservation of Nature (Conservation authority)Relied on for: Assessment and range account for the species, including the systems and coasts it occupies.Background and mechanism onlyCitation checked — the work exists and is described correctly
More fish
Not related to this page — just the rest of the section, because this record connects to very little and a short page should still lead somewhere.
Sources for this page
- FishBase: a global information system on fishes — Froese, R. and D. Pauly, eds. — FishBase Consortium (Scientific institute)Relied on for: Species identity, binomial, family placement, size, distribution and recorded biology for this species.States this directlyPassage read and verified
- FAO Species Identification Guides for Fishery Purposes and the FAO Species Catalogues — Food and Agriculture Organization of the United Nations (Scientific institute)Relied on for: The regional species account describing identity, distribution and the role of this species in the fisheries and food webs it belongs to.States this directlyCitation checked — the work exists and is described correctly
How FishingHQ labels evidence is explained in the evidence policy.