Fin's Fish Guide
The Pelagic thresher (Alopias pelagicus) is a saltwater fish of the family Alopiidae that grows up to 428 cm.
Asia: Australia, China, Taiwan/Ch Taipei, Colombia, Cook Is., Costa Rica and others
Description
The pelagic thresher is a large shark (Alopiidae) from the open, warm waters of the Indian and Pacific oceans. The species reaches about 4.3 metres including the tail, of which the upper tail lobe makes up nearly half. With this long, whip-like tail it stuns schools of small fish before eating them. As an oceanic predator it swims from the surface to several hundred metres deep. It is not aggressive and virtually harmless to humans; its teeth are small.
Frequently asked questions
How do you recognise the Pelagic thresher?
The Pelagic thresher has a torpedo-shaped body and is mainly silver-grey.
Where does the Pelagic thresher live?
The Pelagic thresher lives in the sea (marine waters) and is mostly found around open water. Asia: Australia, China, Taiwan/Ch Taipei, Colombia, Cook Is., Costa Rica and others
How big does the Pelagic thresher get?
The Pelagic thresher grows to a maximum of about 428 cm. On average the species is around 276 cm.
Is the Pelagic thresher dangerous to humans?
No, the Pelagic thresher 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 Pelagic thresher edible?
Yes, the Pelagic thresher is commonly eaten.
More photos
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Alopias
More from the family Alopiidae
Want the complete picture on the Pelagic thresher?
Point your camera at the fish and Fin names the species in seconds. Free, and the Pelagic thresher is one of 12,519 species in the app.