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团头鲂Megalobrama amblycephala Yih

英文名: Bluntnose black bream

地方名: 武昌鱼

分类地位: 鲤形目,鲤科,鲂属

形态特征: 体形侧扁,轮廓为菱形状。胸部平坦。腹棱不完全。头部比较短小。口较小,吻比较圆钝,故被定义为团头鲂。尾柄短,其长度等于或小于尾柄高。胸鳍比较短小。背鳍iii- 7;臀鳍iii- 26~29。侧线鳞50~60。体呈灰黑色,有一道道灰白色纵纹。

生态习性: 栖息在水草丛生水体的中下层,属偏草食性的杂食性鱼类。在人工饲养条件下可摄食配合饲料。2~3 龄性成熟,性成熟个体500g 左右,繁殖期5~6 月。

地理分布: 原产于长江中下游,是湖北梁子湖的特产。20 世纪80 年代引入宁夏,是宁夏池塘、湖泊主要养殖品种。

经济价值: 肉味鲜美,个体大小适中,适合消费者饮食习惯,经济价值较高。

ENGLISH NAME:Bluntnose black bream

LOCAL NAME:Wuchangyu

CLASSIFICATION:Cypriniformes;Cyprinidae; Megalobrama

MORPHOLOGICAL CHARACTERISTICS: Compressed body in diamond shape; flat thoracic region; incomplete abdomen scutes; small and shrot head; small mouth; because of its obtuse round mouth, it is called as Bluntnose black bream; short caudal peduncle which length is equal to or less than that of width; short pectoral fin; dorsal fin iii-7; anal fin iii-26~29; scales in lateral line 50~60; body is grey black with offwhite longitudinal stria-tions around.

ECOLOGICAL HABITS: It inhabits in middle and under stratum of water body with thick aquatic plants, which belongs to omnivore fish but with phytophagous tendency; the cul-tured fish may eat artificial mixed feed; it matures at the age of 2~3; the matured adult weighs around 500g; the breeding period is from May to June.

GEOGRAPHICAL DISTRIBUTION: It is originated from the middle and lower reaches of Changjiang River, and it is a speciality product of Liangzi Lake in Hubei Province. It was introduced in Ningxia in 1980's, and it is the major culturing species in lakes and ponds in Ningxia.

ECONOMIC VALUE: Because of its delicious food, moderate size, it is popular in restaurant. WndbVSzAa0dbECv6CTKU1jpgUkyMK4oCz84thn7pzdM+EQv5m6Rj4w+/CrdPWurV

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