Glass Perch

Body very high, 50% of SL. Lateral line incomplete, but a few pored scales on a silvery midlateral band. Lower margin of inter operculum with few spines. The second spine of the first dorsal fin is strong and very long. Attains 8 cm TL.

A nonobligatory plant spawner.

Amphidromous. Refers to fishes that regularly migrate between freshwater and the sea (in both directions), but not for the purpose of breeding, as in anadromous and catadromous species. Sub-division of diadromous. Migrations should be cyclical and predictable and cover more than 100 km.Characteristic elements in amphidromy are: reproduction in fresh water, passage to sea by newly hatched larvae, a period of feeding and growing at sea usually a few months long, return to fresh water of well-grown juveniles, a further period of feeding and growing in fresh water, followed by reproduction there (Ref. 82692).

Dorsal spines (total): 8; Dorsal soft rays (total): 9 - 10; Analspines: 3; Analsoft rays: 9 - 10

Occurs in lotic and lentic freshwater (Ref. 7300).

Found in brackish-water, mangrove, estuarine and freshwater-stream habitats, usually within 20 km of the sea (Ref. 2847). They occur at temperatures ranging from 28 to 32°C. Found in schools and migrate to freshwater. Mainly diurnal. A predominantly marine or estuarine spawner. Caught by hand and scoop nets (Ref. 7242).

fisheries: minor commercial; price category: low; price reliability: very questionable: based on ex-vessel price for species in this family

分布於印度-西太平洋區，西起印尼，東至帛琉，北至日本南部，南至澳洲。臺灣發現於西南部及東北部海域。

小型至中小型魚類，無食用價值。

體較高，呈長卵圓形，側扁；背部輪廓弧形，腹部輪廓與其同形；眼上方之頭背部不凹入。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，具細齒或小棘；眶上骨1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；背前鱗數10-14；側線於體中部後方中斷。背鰭單一，具深缺刻，背鰭鰭條數VII-1+9-10；臀鰭鰭條數III+9-10；尾鰭深叉形。體透明而散有黑色素點。

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。