水体逐渐酸化对鱼类耗氧量模式的影响

Comparative biochemistry and physiology. C: Comparative pharmacology Pub Date : 1993-07-01 DOI:10.1016/0742-8413(93)90081-U

Peter L.M. Van Dijk , Guido E.E.J.M.Van Den Thillart , Sjoerd E. Wendelaar Bonga

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引用次数: 8

摘要

1. 将鲤鱼(Cyprinus carpio)和罗非鱼(Oreochromis mossambicus)置于流式呼吸计中一周，并在恒定的水O2浓度下连续测量耗氧量。我们的测量表明，罗非鱼在酸性水(pH 4.0)中的标准代谢率(SMR)、平均耗氧量和最大代谢率均有所降低，而鲤鱼则没有。根据我们的研究结果，我们提出，鲤鱼和罗非鱼可能有不同的策略来度过pH值下降的时期:罗非鱼避免运动带来的额外压力，而鲤鱼试图逃离酸性条件。

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The influence of gradual water acidification on the oxygen consumption pattern of fish

1. Carp (Cyprinus carpio) and tilapia (Oreochromis mossambicus) were kept in a flow-through respirometer for a week, while continuous oxygen consumption measurements were carried out, at a constant water O₂ concentration.

2. Our measurements showed that tilapia decreased its standard metabolic rate (SMR), its average oxygen consumption, and its maximum metabolic rate in acid water (pH 4.0), whereas carp did not.

3. It is proposed, based on our results, that carp and tilapia probably have different strategies to survive pH depression episodes: whereas tilapia avoids the additional stress of exercise, carp tries to escape the acid conditions.

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Comparative biochemistry and physiology. C: Comparative pharmacology

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