Gymnosarda unicolor (Rüppell, 1836)
Dogtooth tuna
Dogtooth tuna,  Tambakol,  Bangkalisan,  Gantaan,  Lanhu-an,  Panit,  Pundahan,  Tindukon
Gymnosarda unicolor
photo by Patzner, R.

Family:  Scombridae (Mackerels, tunas, bonitos), subfamily: Scombrinae
Max. size:  247.98 cm FL (male/unsexed); max.weight: 131 kg
Environment:  reef-associated; depth range 10 - 250 m, oceanodromous
Distribution:  Indo-Pacific: Red Sea and East Africa to French Polynesia, north to Japan, south to Australia.
Diagnosis:  Dorsal spines (total): 13-15; Dorsal soft rays (total): 12-14; Anal spines: 0-0; Anal soft rays: 12-13; Vertebrae: 38-38. Mouth fairly large, upper jaw reaching to middle of eye. Laminae of olfactory rosette 48 to 56. Interpelvic process large and single. Lateral line strongly undulating. Body naked posterior to corselet. Swim bladder large, spleen visible in ventral view on the right side of the body. The back and upper sides brilliant blue-black, lower sides and belly silvery; no lines, spots or other markings on the body.
Biology:  An offshore species found mainly around coral reefs. Generally solitary or occur in small schools of six or less. Preys on small schooling fishes such as Decapterus, Caesio, Nasio, Cirrhilabrus, Pterocaesio and squids. Marketed canned and frozen (Ref. 9684, 48637). Adults may be ciguatoxic (Ref. 37816).
IUCN Red List Status: (Ref. 115185)
Threat to humans:  reports of ciguatera poisoning
Country info:  Regularly caught in small numbers during certain seasons. Reported from Tubbataha Reefs (Ref. 53416).

Entered by: Luna, Susan M. - 17.10.90
Modified by: Valdestamon, Roxanne Rei - 10.06.15
Checked by: Agustin, Liza Q. - 17.03.94

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