Katsuwonus pelamis (Linnaeus, 1758)
Skipjack tuna
Barilis,  Batala-an panit,  Buslugan,  Gulyasan,  Rayado,  Skipjack tuna,  Agtun,  Bangkulis,  Bankulis,  Bariles,  Bolis,  Budlis,  Budlisan,  Bulis,  Golyasan,  Gulyaman,  Gulyangan,  Gulyasan,  Karaw,  Oceanic bonito,  Palawayan,  Panit,  Pawayan,  Poyan,  Pundahan,  Puy-yan,  Puyan,  Sambagon,  Skipjack,  Sobad,  Striped tuna,  Tambacol,  Tangi (Simmandya),  Tulingan,  Turingan
Katsuwonus pelamis
photo by Freitas, R.

Family:  Scombridae (Mackerels, tunas, bonitos), subfamily: Scombrinae
Max. size:  110 cm FL (male/unsexed); max.weight: 35 kg; max. reported age: 12 years
Environment:  pelagic-oceanic; depth range 0 - 260 m, oceanodromous
Distribution:  Cosmopolitan in tropical and warm-temperate waters. Not found in the Black Sea. Highly migratory species, Annex I of the 1982 Convention on the Law of the Sea (Ref. 26139).
Diagnosis:  Dorsal spines (total): 14-16; Dorsal soft rays (total): 14-15; Anal spines: 0-0; Anal soft rays: 14-15; Vertebrae: 41-41. Interpelvic process small and bifid. Body without scales except for the corselet and the lateral line. Swim bladder absent. The back is dark purplish blue, lower sides and belly silvery, with 4 to six very conspicuous longitudinal dark bands which in live specimens may appear as continuous lines of dark blotches.
Biology:  Found in offshore waters; larvae restricted to waters with surface temperatures of 15°C to 30°C (Ref. 6390). Exhibit a strong tendency to school in surface waters with birds, drifting objects, sharks, whales and may show a characteristic behavior like jumping, feeding, foaming, etc. Feed on fishes, crustaceans, cephalopods and mollusks; cannibalism is common. Spawn throughout the year in the tropics, eggs released in several portions (Ref. 35388). Eggs and larvae are pelagic (Ref. 6769). Preyed upon by large pelagic fishes (Ref. 6885). Also taken by trolling on light tackle using plugs, spoons, feathers, or strip bait (Ref. 9684). Marketed fresh, frozen or canned (Ref. 9340); also dried-salted and smoked (Ref. 9987).
IUCN Red List Status: (Ref. 115185)
Threat to humans:  reports of ciguatera poisoning
Country info:  Also Ref. 168, 393, 6565.

Entered by: Luna, Susan M. - 17.10.90
Modified by: Luna, Susan M. - 29.02.12
Checked by: Luna, Susan M. - 19.08.99

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