Kır Mehmet, Sunar Murat Can, Altındağ Barış Can
Faculty of Fisheries, Mugla Sitki Kocman University, 48000 Kotekli, Mugla, Turkey.
Faculty of Fisheries, Mugla Sitki Kocman University, 48000 Kotekli, Mugla, Turkey.
J Therm Biol. 2017 Apr;65:125-129. doi: 10.1016/j.jtherbio.2017.02.018. Epub 2017 Mar 3.
The present study reports the temperature tolerance, estimated using dynamic and static methodologies, and preferred temperature range, based on oxygen consumption rate (OCR), of juvenile meagre (Argyrosomus regius) (Asso, 1801) (3.4±0.9g) after 30 days of acclimation at 18, 22, 26 and 30°C. Meagre has dynamic and static thermal tolerance zones of 551°C and 460°C, respectively and is a low resistance fish species, with a resistance zone area of 87°C. The OCR of juvenile meagre at the above acclimation temperatures was 370, 410, 618 and 642mghkg, respectively, and is significantly different (P<0.0001, n=20). The fact that OCR increases by rising temperatures and gradually decreases after 26°C indicates that the preferred temperature range of juvenile meagre is between 26 and 30°C. Our study suggests that meagre is unable to respond to low and high temperature variation in aquaculture facilities or its natural habitats.
本研究报告了在18、22、26和30°C下适应30天后，利用动态和静态方法估算的幼龄军曹鱼（Argyrosomus regius）（阿索，1801年）（3.4±0.9克）的温度耐受性，以及基于耗氧率（OCR）的偏好温度范围。军曹鱼的动态和静态热耐受区分别为551°C和460°C，是一种低抗性鱼类，抗性区面积为87°C。上述适应温度下幼龄军曹鱼的OCR分别为370、410、618和642毫克/小时·千克，且差异显著（P<0.0001，n = 20）。OCR随温度升高而增加，在26°C后逐渐降低，这一事实表明幼龄军曹鱼的偏好温度范围在26至30°C之间。我们的研究表明，军曹鱼无法应对水产养殖设施或其自然栖息地中的低温和高温变化。
