Hydroelectric power because in destroys the river basin and has a negative effect on fish migration.
水力发电因为破坏了流域和对鱼类的迁移有负面影响。
One commission study concluded the dam would affect fish migration and could drive endangered species, like the Mekong giant catfish, to extinction.
委员会的一份研究断定，大坝将会影响鱼类的回游，并可能加速诸如湄公河巨型鲶鱼这类濒危物种的灭绝。
Dams to be built across fish and crab migration routes shall be provided with appropriate fish passage facilities.
在鱼蟹回游通道筑坝，要建造相应的过鱼设施。
Scientists have studied the migration of fish over long distances.
科学家研究过鱼类远距离回游的现象。
Takifugu obscurus, popularly named obscure puffer, is a fish of river to sea migration.
暗纹东方鱼屯俗称河豚，属江海洄游性鱼类。
The __famous__migration is_probabe_the migration of the fish_ called_'salmon", this fish is bom in _ fresh_wath but it travels__many miles to salty water. There it spends _ its_ life ."
最著名的迁徙也许是被称为鲑鱼（大马哈鱼）的迁徙，这种鱼生在淡水中却要游到数英里外的咸水中，在那里度过一生，当天气转凉，它又洄游到淡水中，然后产子并在那里死去。
The __famous__migration is_probabe_the migration of the fish_ called_'salmon", this fish is bom in _ fresh_wath but it travels__many miles to salty water. There it spends _ its_ life ."
最著名的迁徙也许是被称为鲑鱼（大马哈鱼）的迁徙，这种鱼生在淡水中却要游到数英里外的咸水中，在那里度过一生，当天气转凉，它又洄游到淡水中，然后产子并在那里死去。
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