Fin's Fish Guide
The Blackmouth (Oncorhynchus tshawytscha) is a fish that lives in both fresh and salt water of the family Salmonidae that grows up to 150 cm.
Description
The chinook or king salmon is the largest of the Pacific salmons, reaching about 1.5 metres. The species is anadromous: it grows up in the northern Pacific and returns to spawn in the river where it was born. At sea the body is streamlined and silvery with dark spots on the back and tail; in the breeding season the fish change colour and males develop a hooked lower jaw. As a predator it eats crustaceans and fishes. After spawning the adults die. The species is a highly valued sport and food fish and is harmless to humans.
Frequently asked questions
How do you recognise the Blackmouth?
The Blackmouth has a torpedo-shaped body, is mainly silver-grey and shows a spots pattern. Largest Pacific salmon; anadromous and dies after spawning (semelparity).
Where does the Blackmouth live?
The Blackmouth lives in both fresh and salt water and is mostly found around mixed bottom. North Pacific; spawns in rivers of North America and Northeast Asia.
How big does the Blackmouth get?
The Blackmouth grows to a maximum of about 150 cm. On average the species is around 70 cm.
Is the Blackmouth dangerous to humans?
No, the Blackmouth 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 Blackmouth edible?
Yes, the Blackmouth is a highly prized food fish.
More photos
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Oncorhynchus
More from the family Salmonidae
Want the complete picture on the Blackmouth?
Point your camera at the fish and Fin names the species in seconds. Free, and the Blackmouth is one of 12,519 species in the app.