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Cherry salmon (Oncorhynchus masou) — Salmonidae

Cherry salmon

Oncorhynchus masou
Family: Salmonidae
EN · Endangered
NativeIntroduced

The Cherry salmon (Oncorhynchus masou) is a fish that lives in both fresh and salt water of the family Salmonidae that grows up to 79 cm.

Length
79 cm
Water
Euryhaline
Depth
0.0–200.0 m
Diet
Carnivore
Behaviour
Small groups
Body shape
Torpedo-shaped
Substrate
Mixed bottom
Danger
Harmless
Range
Rivers and coastal sea of the northwest Pacific.
Edibility
Commonly eaten

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Description

The masu or cherry salmon (Oncorhynchus masou) is an Asian Pacific salmon of the family Salmonidae from the northwestern Pacific. The species occurs in two forms: a river form that stays in headwaters, defends a territory and feeds mainly on insects, small crustaceans and fishes, and a sea-run form that migrates downstream in schools to the sea, where it feeds on small fishes and pelagic crustaceans. Spawning fish often develop handsome red hues. The species reaches almost 80 cm, is a valued sport and food fish, but is considered Endangered (EN) owing to habitat loss and fishing.

Frequently asked questions

How do you recognise the Cherry salmon?

The Cherry salmon has a torpedo-shaped body, is mainly silver-grey and shows a spots pattern. Two forms (river-migrating and sea-migrating); spawning animals develop red tints; endangered (EN).

Where does the Cherry salmon live?

The Cherry salmon lives in both fresh and salt water and is mostly found around mixed bottom. Rivers and coastal sea of the northwest Pacific.

How big does the Cherry salmon get?

The Cherry salmon grows to a maximum of about 79 cm.

Is the Cherry salmon dangerous to humans?

No, the Cherry salmon is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.

Is the Cherry salmon edible?

Yes, the Cherry salmon is commonly eaten.

More photos

Cherry salmon (Oncorhynchus masou) — Salmonidae — 2
iNaturalist ((c) kisaland, some rights reserved (CC BY-NC))
Cherry salmon (Oncorhynchus masou) — Salmonidae — 3
iNaturalist ((c) sergeymakeev, some rights reserved (CC BY-NC))
Cherry salmon (Oncorhynchus masou) — Salmonidae — 4
iNaturalist ((c) trickytris, some rights reserved (CC BY-NC))
Cherry salmon (Oncorhynchus masou) — Salmonidae — 5
iNaturalist ((c) gwt555, some rights reserved (CC BY-NC))
Fin

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All data

Identification

English name
Cherry salmon verified
Scientific name
Oncorhynchus masou
Family
Salmonidae
Other names
Cherry salmon; Japanese salmon; Masu salmon; Salmon; Salmon trout; Satsukimasu salmon verified

Appearance

Size class
Large verified
Max length (cm)
79.0 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Silver / grey inferred
Pattern
Spots inferred
Tail shape
Forked inferred
Mouth position
Terminal inferred
Lips
Thin inferred
Barbels
No sourced
Dorsal fins
Two separate inferred
Dorsal spines
No sourced

Habitat & distribution

Water type
Euryhaline sourced
Substrate
Mixed bottom sourced
Min depth (m)
0.0 verified
Max depth (m)
200.0 verified
Natural range
Rivers and coastal sea of the northwest Pacific. inferred
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Insects, small crustaceans and fishes sourced
Social behaviour
Small groups inferred
Territorial
No inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
Two forms (river-migrating and sea-migrating); spawning animals develop red tints; endangered (EN). sourced

For anglers

Edibility
Commonly eaten sourced
Fishing method
Fished in rivers with artificial flies, spinners and small lures; given its threatened status, release is preferred. sourced
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced
First aid
This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status. verified

Status & sources

Sources
FishBase via GBIF (DwC-A), CC-BY-NC 4.0

Same genus Oncorhynchus

More from the family Salmonidae

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