Emperor

Description: Lower edge of eye is intersected by line from snout tip to the middle of the caudal fin fork. Eye diameter usually about equal to the length of the snout. The interorbital space is convex and about equal to eye diameter. The inner surface of the pectoral fin axil is scaleless. Overall color is silver, sometimes slightly brown dorsally, with about eight transverse brown bars on the sides, the first crossing through the eye, the remainder below the dorsal fin and across the caudal peduncle. Scattered blotches and speckling is sometimes evident on sides. Fins are clear to yellow-orange with caudal margins and tips often deep red (Ref. 2295). Body depth 2.2-2.4 in SL (Ref. 90102).

Dorsal spines (total): 10; Dorsal soft rays (total): 10; Analspines: 3; Analsoft rays: 10

Found on the continental shelf (Ref. 75154). In sandy areas and rocky reefs (Ref. 9137).

Inhabits sandy or low-relief rocky bottoms (Ref. 11228). Feeds on bottom-living invertebrates. Marketed fresh (Ref. 9775). May be solitary or in small groups, on flat offshore trawling grounds, occasionally near shallow coral reefs (Ref. 90102).

fisheries: minor commercial; price category: high; price reliability: questionable: based on ex-vessel price for species in this genus

分布於印度-西太平洋區，西起東非，東至所羅門群島，北至日本南部，南至澳洲北部。台灣分布於澎湖海域。

一般以流刺網、潛水或陷阱法等方式捕獲，為肉質鮮美的食用魚，適合各種的烹調方法。

體延長而呈長橢圓形。吻尖。眼大，下緣位於吻端至尾叉中央部位的平行線上。口端位；兩頜具犬齒及絨毛狀齒，下頜犬齒向外；上頜骨上緣平滑。頰部具鱗4-6列；胸鰭基部內側不具鱗；側線鱗數47-48；側線上鱗列數5.5。背鰭單一，不具深刻，具硬棘X，軟條10；臀鰭硬棘III，軟條10；胸鰭軟條14；尾鰭深分叉，兩葉先端尖銳，中間鰭條短於眼徑。體一致為銀白色，體背有時呈淡褐色；體側具約8條暗色橫帶，有時不顯；頭側無任何斑紋。各鰭透明至淡橘紅色；尾鰭有時具紅緣。以前所記載之白鱲變種(/Gymnocranius griseus/)為本種之誤鑑。

主要棲息於沿岸及近海砂泥底質或礁岩外緣之砂地上的水域，棲息深度可達100公尺深。主要覓食底棲的甲殼類、頭足類或其他小魚等為食。

Inhabits trawling grounds of the continental shelf. Feeds on bottom-living invertebrates.