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尼罗罗非鱼[Tilapia nilo tica]原产在非洲的内陆水域和中东大西洋沿岸,是罗非鱼属中优良品种之一,体重可达11斤。其突出的优点是:个体大,生长快,较耐寒,生活力强、肉味鲜美。目前,尼罗罗非鱼正以养殖鱼类后起之秀的声誉为世界各国所关注,已在世界许多国家大力推广。被引进我国以后,已在全国许多地方崭露头角,对提高我国塘鱼产量起了很重要的作用。尼罗罗非鱼体侧扁,背高,无口须、下颌比上颌稍长,背鳍、胸鳍和尾鳍都大,尾鳍未端为纯园形,不分叉。鳞片硬园,侧线断续分上下两段。体色因栖息环境不同有变化(生殖时期也有差异),一般情况下呈黄棕色。体表有9条黑色纹带,背鳍下方7条,尾柄上2条。
Tilapia nilo tica, native to Africa’s inland waters and the Middle East Atlantic coast, is one of the fine varieties of tilapia and weighs 11 pounds. Its prominent advantages are: large individuals, fast growth, more cold, strong vitality, meat flavor. At present, the reputation of Nile tilapia, a rising star of farmed fish, has attracted worldwide attention and has been vigorously promoted in many countries in the world. After being introduced into our country, it has emerged in many parts of the country and played an important role in raising the production of pond fish in our country. Nile tilapia body flat side, high back, no mouth whiskers, lower jaw longer than the maxillary, dorsal, pectoral and caudal fin are large, caudal fin at the end of pure garden-shaped, not forked. Scale Park, off-line intermittent points up and down the two sections. Body color due to different habitat changes (reproductive age are also different), under normal circumstances was brown. The surface has 9 black stripes, 7 below the dorsal fin, caudal peduncle 2.