The Longtail tuna (Thunnus tonggol) is a saltwater fish of the family Scombridae that grows up to 145 cm.
Description
The longtail tuna is a fast open-water predator from the Indo-West Pacific. The species grows to about 145 cm and has a powerful, torpedo-shaped, blue-black body with silvery-white flanks and a row of small finlets before the relatively long tail. As a pelagic predator it schools in nearshore open water and hunts small fish, squid and crustaceans. It is an important commercial food and sport fish. The IUCN assesses the species as Least Concern (LC).
Frequently asked questions
How do you recognise the Longtail tuna?
The Longtail tuna has a torpedo-shaped body, is mainly blue and shows a plain pattern. Torpedo-shaped body with finlets on the tail; fast schooling tuna
Where does the Longtail tuna live?
The Longtail tuna lives in the sea (marine waters) and is mostly found around open water. Indo-West Pacific
How big does the Longtail tuna get?
The Longtail tuna grows to a maximum of about 145 cm. On average the species is around 70 cm.
Is the Longtail tuna dangerous to humans?
No, the Longtail tuna 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 Longtail tuna edible?
Yes, the Longtail tuna is commonly eaten.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Thunnus
More from the family Scombridae

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Point your camera at the fish and Fin names the species in seconds. Free, and the Longtail tuna is one of 12,519 species in the app.