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Water quality dependent recovery from Aluminum stress in Atlantic salmon Smolt

机译:大西洋鲑鱼鲑鱼铝胁迫对水质的依赖恢复

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摘要

In Norway, a variable pH target (pH 6.2-6.4 during most of the year, but 6.4 during the smoltification period) is used to reduce the cost of liming salmon rivers. Here we test the adequacy of this liming strategy. Atlantic salmon presmolts exposed to sublethal acidic water (pH 5.9, <25 μg Ali·L~-1) for more than 3 months showed impaired seawater tolerance, elevated gill-Al concentrations, severe gill tissue changes, elevated blood plasma glucose concentrations, but no effect on blood plasma chloride.
机译:在挪威,使用可变的pH值目标(一年中的大部分时间pH值为6.2-6.4,而在糖化期为pH值6.4)可降低鲑鱼河石灰的成本。在这里,我们测试这种限制策略的适当性。暴露于亚致死性酸性水(pH 5.9,<25μgAli·L〜-1)超过3个月的大西洋鲑鱼前鲑显示出海水耐受性受损,g-铝浓度升高,tissue组织严重变化,血浆葡萄糖浓度升高,但对血浆氯化物无影响。

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