GT occurs in the Indo-Pacific from the Red Sea to South Africa across Australia and southern Japan to Hawaii. Depending on the region, its body color varies from blue-silver to light brown-grey and from a dirty gold to a black-brown color. The color lightens towards the flanks; the belly is usually whitish in color. Unlike the females, the back and flanks of adult males are dark to black-gray. The GT is the largest among the eight trevally species. Small scales cover the body, except for a small naked patch before the pelvic fins and at the base of the pectoral fins. This distinguishes it from the bigeye trevally, whose breast is fully scaled. The GT's head is beefy and profound. The lateral line starts near the upper end of the gill cover and arches underneath the second dorsal fin in a pronounced downward curve. The body is com-pressed, with a horizontal row of scutes on the caudal peduncle. These hard scales are so sharp © R. Balkow/www.getawaytours.eu 13 they can cut fishing lines with the greatest of ease.
Trevally & Co.
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