Migration
provided by Fishbase
Oceanodromous. Migrating within oceans typically between spawning and different feeding areas, as tunas do. Migrations should be cyclical and predictable and cover more than 100 km.
Morphology
provided by Fishbase
Dorsal spines (total): 8; Dorsal soft rays (total): 9; Analspines: 3; Analsoft rays: 9
Biology
provided by Fishbase
Found in brackish waters of bays, estuaries and tidal mangrove creeks, sometimes entering fresh water (Ref. 2847, 44894). Occurs in lotic and lentic freshwater (Ref. 7300).
分布
provided by The Fish Database of Taiwan
分布於印度-西太平洋區,包括印度-澳洲列島,北至臺灣。臺灣發現於西南部及南部海域。
利用
provided by The Fish Database of Taiwan
小型至中小型魚類,無食用價值。
描述
provided by The Fish Database of Taiwan
體較細長,呈長橢圓形,側扁;背部輪廓弧形,腹部輪廓與其同形。頭中小。眼中大。口大,斜裂;頜骨、鋤骨和腭骨均具呈絨毛狀齒。眶前骨及前鰓蓋骨均雙重緣,皆具細齒或小棘,其中前鰓蓋骨之後緣具6-13棘;眶上骨3-5棘;鰓蓋骨後緣無棘;間鰓蓋骨後緣具鋸齒。體被圓鱗,易脫落,頰部2列鱗,鰓蓋亦被鱗;側線完全。背鰭單一,具深缺刻,背鰭鰭條數VII-1+9;臀鰭鰭條數III+9;尾鰭深叉形。體透明而散有黑色素點。
棲地
provided by The Fish Database of Taiwan
主要棲息於沿岸、潟湖、沼澤或紅樹林,通常活動於汽水域,亦可進河川下游淡水域。群游性。肉食性魚類,以水生昆蟲及小型魚介貝類為食。