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首页> 外文期刊>The Progressive Fish-Culturist >TOXICITY OF AMMONIA TO FINGERLING WHITE BASS - EFFECT OF SELECTED ENVIRONMENTS ON UPTAKE DYNAMICS
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TOXICITY OF AMMONIA TO FINGERLING WHITE BASS - EFFECT OF SELECTED ENVIRONMENTS ON UPTAKE DYNAMICS

机译：氨对白鲈的毒性-选择环境对摄取动力学的影响。

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摘要

The 96-h median lethal concentration of un-ionized ammonia-nitrogen for fingerling white bass Morone chrysops (mean weight +/- SD, 4.4 +/- 1.42 g) at 19.7 +/- 0.4 degrees C was 0.63 +/- 0.17 mg/L in soft (less than or equal to 5.0 mg calcium/L) freshwater. The uptake of ammonia by fingerling white bass (mean weight, 14.0 +/- 2.74 g) was similar in soft freshwater, hard (78.3 +/- 3.80 mg calcium/L) freshwater, and dilute (7.4 +/- 0.30 g sea salt/L) seawater. However, exposure time did affect the concentration of plasma ammonia in exposed white bass. Based on the observations in this study and others, it is estimated that growth of fingerling white bass should not be inhibited if fish are continuously exposed to un-ionized ammonia nitrogen at 0.06 mg/L or less.
机译：在19.7 +/- 0.4摄氏度下鱼种白鲈Morone chrysops（平均体重+/- SD，4.4 +/- 1.42 g）的非电离氨氮的96小时平均致命浓度为0.63 +/- 0.17 mg / L在淡水（钙含量小于或等于5.0 mg / L）中。在淡水，硬水（78.3 +/- 3.80 mg钙/ L）和淡水（7.4 +/- 0.30 g的海盐）中，鱼种鲈鱼（平均体重14.0 +/- 2.74 g）对氨的吸收相似。 / L）海水。但是，暴露时间的确会影响暴露的白色低音中血浆氨的浓度。根据本研究等的观察，估计如果鱼连续暴露于0.06 mg / L或更少的非离子氨氮下，鱼种白鲈鱼的生长就不会受到抑制。

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