It's a huge freshwater fish, easy to catch and eat, and tempting to introduce into non-native waters.
尼罗河鲈鱼是一种体型巨大的淡水鱼，易于捕捞和烹饪。所以人们尝试将它引入原产地之外的水域。How about that tail that looks kind of like a toilet brush, the cichlid fish takes care of that.
尾巴得有点儿像厕所刷该怎么办呢？淡水鱼将全程负责。SDS-substrate-PAGE method was modified and used to characterize the proteinases from the digestive organs of freshwater fish.
改进SDS-底物-PAGE技术以用于分析检测淡水鱼中的消化蛋白酶。any of several small Indo-Australian freshwater fishes that catch insects by squirting water at them and knocking them into the water.
几种印度-澳大利亚的小淡水鱼，通过将水滴喷向昆虫并击落它们而捕食昆虫。The pearl river delta is China's grain, sugar, mulberry and freshwater fish is one of important origin.
珠江三角洲是中国粮食、蔗糖、桑蚕和淡水鱼重要产地之一。A small Eurasian freshwater fish(Gobio gobio) related to the carp and used for bait.
鮈鱼一种小型的亚欧淡水鱼（鮈鱼鲤科），与鲤鱼近缘，用作鱼饵。Mosquitofish, freshwater fish with a taste for mosquito larvae, are highly social.
食蚊鱼是淡水鱼，以蚊子幼虫为食，高度的群体化。A primitive, bony freshwater fish(Amia calva)of central and eastern North America, with a long, spineless dorsal fin.
弓鳍鱼北美洲中部和东部的一种原始、多骨的淡水鱼（弓鳍鱼弓鳍鱼属），具有长的无脊的背鳍Reaching a maximum length of about 16 inches (40 centimeters), the freshwater fish is native to northeastern and mid-Atlantic North America.
这种最长可达16英寸（40厘米）的淡水鱼原产于东北美和中大西洋。