Radboud University Nijmegen, Institute for Water and Wetland Research, Department of Environmental Science, P. O. Box 9010, 6500 GL Nijmegen, The Netherlands.
J Fish Biol. 2013 Jul;83(1):190-206. doi: 10.1111/jfb.12167.
Data on low dissolved oxygen (DO₂) tolerance of freshwater fish species of north-western Europe were used to create species sensitivity distributions (SSD). Lowest observed effect concentrations (LOEC) and 100% lethal concentrations (LC₁₀₀) data were collected from the scientific literature. Comparisons were made among life stages as well as between native and exotic species. In addition, lethal DO₂ concentrations were compared to oxygen concentrations corresponding to maximum tolerable water temperatures of the same species. Fish eggs and embryos were the least tolerant. Juveniles had a significantly lower mean LOEC than adults, but there was no difference in mean LC₁₀₀ between the two groups. The difference in lethal oxygen concentrations between adults and juveniles was largest for three salmonids, although it remains uncertain if this was a result of smoltification. There were no significant differences between native and exotic species; however, data on exotics are limited. DO₂ concentrations converted from maximum tolerable water temperatures were 3·9 times higher than the measured lethal DO₂ concentrations, which may reflect changes in respiration rates (Q₁₀) and may also relate to the simplicity of the model used.
利用北欧淡水鱼类对低溶解氧（DO₂）耐受性的数据，创建了物种敏感度分布（SSD）。从科学文献中收集了最低观察效应浓度（LOEC）和 100%致死浓度（LC₁₀₀）的数据。比较了不同生命阶段以及本地种和外来种之间的差异。此外，还将致死 DO₂浓度与同一物种最大耐受水温对应的氧浓度进行了比较。鱼卵和胚胎的耐受性最低。幼鱼的平均 LOEC 明显低于成鱼，但两组之间的平均 LC₁₀₀没有差异。对于三种鲑鱼，成鱼和幼鱼之间的致死氧浓度差异最大，尽管这是否是变态的结果仍不确定。本地种和外来种之间没有显著差异；然而，有关外来种的数据有限。从最大耐受水温转换而来的 DO₂浓度比实测的致死 DO₂浓度高 3.9 倍，这可能反映了呼吸速率（Q₁₀）的变化，也可能与所使用模型的简单性有关。
