Rastrelliger faughni Matsui, 1967
Island mackerel
Alumahan bato,  Island mackerel,  Alumahan,  Andohaw,  Anduhan,  Anduhaw,  Bantala-an,  Bulao-bulao,  Burao,  Buraw,  Burirawan,  Gutob,  Hasa-hasa,  Kabalyas,  Kapisnon,  Karabalyas,  Lumahan,  Panit,  Tamarang
Rastrelliger faughni
photo by Reyes, R.B.

Family:  Scombridae (Mackerels, tunas, bonitos), subfamily: Scombrinae
Max. size:  20 cm FL (male/unsexed); max.weight: 750.0 g
Environment:  pelagic-neritic; marine; depth range 2 - 150 m, oceanodromous
Distribution:  Indo-West Pacific: India to Fiji, north to Taiwan.
Diagnosis:  Dorsal spines (total): 8-11; Dorsal soft rays (total): 12-12; Anal spines: 0-0; Anal soft rays: 12-12; Vertebrae: 31. Head longer than body depth. Maxilla covered by lachrymal bone. Swim bladder present. Interpelvic process small and single. Anal spine rudimentary. Bristles on longest gill raker, 30 to 55 on one side. Gill rakers do not extend far into mouth. A black blotch behind pectoral fin base. The belly is yellowish silver; 2 to 6 large spots are at the base of the first dorsal fin; tow faint stripes are at the level of the lateral line in some specimens.
Biology:  Epipelagic, neritic species, occurring in waters where surface temperatures do not fall below 17°C. Forms schools of equally sized individuals. Feeds on the largest zooplankton organisms, thus complementing the planktonic food spectrum of the other two Rastrelliger species.
IUCN Red List Status: Data deficient (DD); Date assessed: 05 December 2009 Ref. (126983)
Threat to humans:  harmless
Country info:  Taken in commercial quantities by fish corrals (ibaklad), bag nets and round seines (sapiao). Museum: Western Calatagan, Batangas, UPZM 5453. Also Ref. 171.

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