Fin's Fish Guide
The Pacific sleeper shark (Somniosus pacificus) is a saltwater fish of the family Somniosidae that grows up to 440 cm.
North America: Canada, Taiwan/Ch Taipei, Japan, Mexico, Russia, USA and others
Description
The Pacific sleeper shark is a large deep-sea shark (Somniosidae) from cold waters of the northern Pacific. The species reaches at least 4 metres and has a bulky, cylindrical, grey-brown body with small fins, a short blunt snout and small eyes. As a sluggish dweller of the depths it feeds on fish, squid, crustaceans and carrion, including large prey such as marine mammals. Through its deep, remote way of life it is harmless to humans.
Frequently asked questions
How do you recognise the Pacific sleeper shark?
The Pacific sleeper shark has an elongate, eel-like body and is mainly brown.
Where does the Pacific sleeper shark live?
The Pacific sleeper shark lives in the sea (marine waters) and is mostly found around mixed bottom. North America: Canada, Taiwan/Ch Taipei, Japan, Mexico, Russia, USA and others
How big does the Pacific sleeper shark get?
The Pacific sleeper shark grows to a maximum of about 440 cm.
Is the Pacific sleeper shark dangerous to humans?
No, the Pacific sleeper shark 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.
More photos
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Somniosus
More from the family Somniosidae
Want the complete picture on the Pacific sleeper shark?
Point your camera at the fish and Fin names the species in seconds. Free, and the Pacific sleeper shark is one of 12,519 species in the app.