一、中国香鱼的研究和工作概况１．资源概况香鱼是沿岸小型过河口的洄游性鱼类。凡产香鱼的江河溪流都具有如下条件：①与海相通，香鱼在潮水所至的咸淡水交汇处产卵后，仔鱼可顺流冲到海湾中越冬生长；②底质必须为石砾底、水色清澈、水流湍急、水温相对偏低，这些地方是香鱼 First, the Chinese ayu research and work profiles 1. Resource Profile Ayu is a migratory fish along a small river crossing. All the rivers and streams that produce sweet-smelling fish have the following conditions: ①At the same time as the sea, the sweetfish can runoff to the bay for the winter growth when the sweetfish spawn at the junction of brackish water from the tidewater; ②The sediment must be gravel Bottom, clear water, fast-flowing, relatively low temperature, these places are sweet fish