Departamento de Biología, Facultad de Ciencias, Universidad Nacional Autónoma de México, Circuito exterior Cd. Universitaria, Mexico 04510.
J Therm Biol. 2013 Jan;38(1):14-9. doi: 10.1016/j.jtherbio.2012.09.001. Epub 2012 Sep 29.
Thermopreference, tolerance and oxygen consumption rates of early juveniles Octopus maya (O. maya; weight range 0.38-0.78g) were determined after acclimating the octopuses to temperatures (18, 22, 26, and 30°C) for 20 days. The results indicated a direct relationship between preferred temperature (PT) and acclimated temperature, the PT was 23.4°C. Critical Thermal Maxima, (CTMax; 31.8±1.2, 32.7±0.9, 34.8±1.4 and 36.5±1.0) and Critical Thermal Minima, (CTMin; 11.6±0.2, 12.8±0.6, 13.7±1.0, 19.00±0.9) increased significantly (P<0.05) with increasing acclimation temperatures. The endpoint for CTMax was ink release and for CTMin was tentacles curled, respectively. A thermal tolerance polygon over the range of 18-30°C resulted in a calculated area of 210.0°C(2). The oxygen consumption rate increased significantly α=0.05 with increasing acclimation temperatures between 18 and 30°C. Maximum and minimum temperature quotients (Q10) were observed between 26-30°C and 22-26°C as 3.03 and 1.71, respectively. These results suggest that O. maya has an increased capability for adapting to moderate temperatures, and suggest increased culture potential in subtropical regions southeast of México.
在将章鱼适应 20 天温度（18、22、26 和 30°C）后，测定了早期幼章鱼（O. maya；体重范围为 0.38-0.78g）的热偏好、耐受性和耗氧率。结果表明，偏好温度（PT）与适应温度之间存在直接关系，PT 为 23.4°C。临界热最大值（CTMax；31.8±1.2、32.7±0.9、34.8±1.4 和 36.5±1.0）和临界热最小值（CTMin；11.6±0.2、12.8±0.6、13.7±1.0、19.00±0.9）随着适应温度的升高而显著增加（P<0.05）。CTMax 的终点是墨汁释放，CTMin 的终点是触手卷曲。在 18-30°C 的范围内，热耐受多边形导致计算出的面积为 210.0°C（2）。耗氧率随着适应温度从 18°C 到 30°C 的升高而显著增加（α=0.05）。在 26-30°C 和 22-26°C 之间观察到最大和最小温度商（Q10）分别为 3.03 和 1.71。这些结果表明，O. maya 具有适应中等温度的能力增强，并表明在墨西哥东南部的亚热带地区具有增加的养殖潜力。
