Division of Fisheries Science, Central Agricultural Research Institute, ICAR, Port Blair 744101, India.
Fish Physiol Biochem. 2010 Mar;36(1):85-90. doi: 10.1007/s10695-008-9293-3. Epub 2008 Dec 11.
Teleost fish have developed their own specific adaptive mechanism, both behavioral and physiological, to maintain homeostasis in response to unfavorable temperatures. Therefore, this study was aimed at assessing the critical thermal maxima (CT(Max)), critical thermal minima (CT(Min)), and oxygen consumption rate of Anabas testudineus (17.03 +/- 1.2 g) after acclimating to three preset temperatures (25, 30, and 35 degrees C) for 30 days. The CT(Max) and CT(Min) were 40.15, 41.40, 41.88 degrees C and 12.43, 13.06, 13.94 degrees C, respectively, and were significantly different (P < 0.05). The thermal tolerance polygon for the specified temperatures was 278.30 degrees C(2). The oxygen consumption rate (117.03, 125.70, 198.48 mg O(2) kg(-1) h(-1), respectively) increased significantly (P < 0.05) with increasing acclimation temperatures. The overall results indicate that the thermal tolerance and oxygen consumption of A. testudineus are dependent on acclimation.
硬骨鱼类已经发展出自己特定的适应机制，包括行为和生理上的适应机制，以维持内环境稳定，从而适应不利的温度环境。因此，本研究旨在评估经过 30 天分别在 25、30 和 35°C 三种预设温度下驯化后的缘边箱鲀（17.03±1.2g）的最大临界温度（CT(Max)）、最小临界温度（CT(Min)）和耗氧量。CT(Max)和 CT(Min)分别为 40.15°C、41.40°C、41.88°C 和 12.43°C、13.06°C、13.94°C，差异显著（P＜0.05）。特定温度下的热耐受多边形为 278.30°C（2）。耗氧量（分别为 117.03、125.70、198.48mg O2kg-1h-1）随驯化温度的升高而显著增加（P＜0.05）。总的来说，结果表明，缘边箱鲀的耐热性和耗氧量取决于驯化。
