Simple download service (Atom) of the dataset: Priority Watercourses for the Protection of Amphihalin Migratory Fish by 2021 in the Rhine-Meuse Basin

Priority Watercourses for the Protection of Amphihalin Migratory Fish by 2021 in the Rhine-Meuse Basin Amphihalous migratory fish belong to species that are obliged to move between freshwater and sea in order to complete their life cycle. All these species breed in rivers and grow at sea except the eel that does exactly the opposite and breeds in the Sargasses Sea.《莱茵-默兹流域截至2021年需优先保护的两栖洄游鱼类（Amphihalous Migratory Fish）优先保护水道》 两栖洄游鱼类（Amphihalous Migratory Fish）是指必须在淡水与海洋之间往返移动以完成完整生命周期的物种。 除鳗鱼外，其余所有此类物种均在河流中产卵繁育、于海洋中生长；鳗鱼则恰好相反，于马尾藻海（Sargasses Sea）产卵繁育。