農業部-水產試驗所全球資訊網農業部-水產試驗所全球資訊網

本研究針對短鰭黃鱲鰺在低水溫耐受性進行相關研究，主要目的是探討短鰭黃鱲鰺對低溫之耐受性；實驗分為兩部份：(一) 急速降溫耐受性實驗，結果顯示短鰭黃鱲鰺在急速降溫下，極限耐受水溫為12℃。（二）緩慢降溫實驗，結果顯示短鰭黃鱲鰺的紅血球數及血球容積比，於降溫達14℃後，第24 h 顯著低於控制組，至48 h後漸回升；血紅素在降溫後第24 h漸上升，且於72 h 顯著高於控制組；葡萄糖、乳酸及皮質醇濃度於開始降溫時逐漸上升。

In this study, two experiments were conducted to investigate the tolerances of acute and chronic cold shock stress on pompano. The extreme tolerance of acute cold shock in pompano was 12ºC. In the chronic cold shock experiments, the temperature was reduced from 26 ºC to 14 ºC within three days and then maintained at 14 ºC. After 24 hours, the RBC number and hematocrit in the plasma were lower than the control set, and then increased after 48 hours. Hemoglobin increased with time and was higher than the control set after 72 hours. The concentrations of glucose, lactate, and cortisol in the plasma of the fish kept in the cold pond also revealed significantly differences to the control set.