Department of Zoology, National University of Singapore, Kent Ridge, Singapore, 0511.
Fish Physiol Biochem. 1990 May;8(3):221-7. doi: 10.1007/BF00004461.
The mudskipper P. chrysospilos became inert at 0.76 μl O2.ml(-1) when it was allowed to respire in a 'closed respiratory chamber'. No ethanol was detected although it excreted three times more total carbon dioxide into the surrounding sea water than the amount of oxygen consumed. However, P. chrysospilos could survive environmental hypoxic exposure (0.8 μl O2.ml(-1)) for at least 6 h. Upon normoxic recovery, the oxygen debt repayment was only a small fraction of the oxygen deficit incurred during the 6 h of hypoxic exposure. It would therefore appear that P. chrysospilos was able to cope with environmental hypoxia by suppressing its metabolic rate.
当弹涂鱼 P. chrysospilos 在一个“封闭呼吸室”中呼吸时，当氧浓度降至 0.76 μl O2.ml(-1)时，它会变得不活跃。尽管它向周围海水中排泄的总二氧化碳量是耗氧量的三倍，但没有检测到乙醇。然而，P. chrysospilos 可以在至少 6 小时的环境缺氧暴露（0.8 μl O2.ml(-1))中存活。在恢复到正常氧水平后，氧气债务的偿还仅占缺氧暴露 6 小时期间氧气亏损的一小部分。因此，弹涂鱼似乎能够通过抑制其代谢率来应对环境缺氧。
