淡水鱼类（英文名称 freshwater fishes）指栖息于江河、湖沼、水库等淡水水域的鱼类。我国有淡水鱼类1400多种，淡水鱼类养殖产量位居世界第一，主要的养殖品种有青鱼、草鱼、鲢和鳙，俗称“四大家鱼”。
The diversity of intestinal bacteria in the six kinds of fresh fishes was investigated by denaturing gradient gel electrophoresis(DGGE) fingerprinting. The principal component analysis of DGGE profiles indicated that substantial inter subject variations existed in intestinal bacteria in freshwater fishes.
对六种淡水鱼肠道内的细菌进行DGGE指纹图谱的多样性分析,图谱中的优势性条带表明,淡水鱼类的肠道中存在着大量的细菌群落。
参考来源 - PCRData also suggested that FAA was an unlikely primary energy substrate during embryogenesis in freshwater fish.5.
同时,已有数据也说明在淡水鱼类的胚胎发生过程中,游离氨基酸不可能是其主要的能量来源。
参考来源 - 河川沙塘鳢（Odontobutis potamophila）早期发育过程中的器官发生、营养代谢及其能量收支的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
这些鱼类分为4个主要生态类型，包括河口性鱼类、近海鱼类、江海洄游型鱼类和淡水鱼类。
These fish could be categorized into four types, including estuarine fishes, marine fishes, diadromous fishes and of freshwater fishes.
黄鳝是我国重要的淡水鱼类。
Monopterus albus Zuiew is a important freshwater fish in our country.
一种东半球鲃属或须鲃属及有关科属的淡水鱼类。
Any of various Old World freshwater fishes of the genus Barbus or Puntius and related genera.
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