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首页> 外文期刊>日本水産学会誌 >Differences in temperature adaptability among three races of ayu Plecoglossus altivelis under the same raising condition [Japanese]
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Differences in temperature adaptability among three races of ayu Plecoglossus altivelis under the same raising condition [Japanese]

机译：相同举重条件下，三场比赛三场比赛中温度适应性的差异[日文]

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摘要

Temperature adaptability was compared among three different races of ayu Plecoglossus altivelis at 205-220 days of age by recording changes in their tolerance temperatures after acclimation to various temperatures. These races were raised under the same conditions from hatching up to the performance of temperature-tolerance tests to make environment factors uniform. Tolerance temperatures of the fish changed depending on the acclimation temperature within the race and there were significant differences in the indices of temperature tolerance among he races. Average critical thermal maximum and minimum acclimated to 15-23degreesC and ranged from 29.7-32.2degreesC, 2.5-6.0degreesC in amphidromous form, 28.7-31.7degreesC, 2.3-5.3degreesC in landlocked form and 29.7-33.0degreesC, 1.7-5.0degreesC in Setogawa artificial landlocked form. The magnitude of thermal tolerance zones for each race calculated from the upper and lower incipient lethal temperatures against acclimation temperatures were 481degreesC(2), 415degreesC(2) and 517degreesC(2) respectively. These results suggested that a difference may exist in the temperature adaptability among the ayu races.
机译：通过在适应于各种温度的情况下记录其容差温度的变化，在205-220天的Ayu Plecoglossus Altivelis的三种不同种族中比较了温度适应性。这些比赛在与孵化的相同条件下提高了宽度耐受耐温试验的性能，以使环境因素均匀。鱼的耐受温度根据种族内的适应温度而改变，并且他种族之间的温度耐受索引存在显着差异。平均临界热量和最小值适应15-23degreesc，从29.7-32.2degreesc，2.5-6.0degreesc，28.7-31.7degreesc，2.3-5.3degreesc，内陆形式，29.7-33.0degreesc，1.7-5.0degreesc Setogawa人工内陆形式。从上部和较低初始致命温度计算的每种竞争区域的热容差区的大小分别为481degreesc（2），415degreesc（2）和517degreesc（2）。这些结果表明，AYU比赛中的温度适应性中可能存在差异。

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