Longtail tuna (Thunnus tonggol) is a saltwater species recorded in Taiwan, Singapore, Malaysia. It is found at depths of ≥ 10 m. The main season in Taiwan, Singapore, Malaysia runs spring, winter.
Scientific name: Thunnus tonggol · Water: Saltwater · Season: Spring, Winter
Size: up to 145 cm
The longtail tuna is a scombrid and a predominantly neritic species that avoids very turbid water and areas of reduced salinity such as estuaries; it forms schools of varying size. It feeds on a variety of fishes, cephalopods and crustaceans, particularly stomatopod larvae and prawns. Its range covers the Indo-West Pacific, from the Red Sea and East Africa to New Guinea, north to Japan and south to Australia, with a record from New Zealand. In season in spring and winter, it occurs from 10 m downward and reaches about 145 cm fork length, commonly 70 cm, and up to about 35.9 kg, living about nineteen years. It is a highly commercial species and a game fish, marketed mainly fresh and dried salted but also smoked, canned and frozen, in the highest price band. IUCN lists it as data deficient. Trophic level is 4.5, fishing vulnerability moderate at 44 of 100, climate vulnerability high to very high at 75, and resilience medium.
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