Abstract

The thermoadaptive characteristics of the lake minnow Rhynchocypris percnurus (Pallas, 1814) have been obtained for the first time in experimental conditions. The final preferred temperature in adult fish previously acclimated to a water temperature of 15°С is ~23°С. The sublethal temperature, as determined by a critical thermal maximum at a water heating rate of 8°C/h, in fingerlings and adult fish is 31.6–31.9°C and the upper lethal temperature is 33.5–33.8°C. Established thermoadaptation characteristics of the lake minnow are higher than those compared to the common minnow P. phoxinus (L.), which may be due to the difference in the ecology of these species.

中文翻译：

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Minnow Rhynchocypris Percnurus湖的首选温度和热阻（Pallas，1814）

摘要

experimental鱼Rhynchocypris percnurus（Pallas，1814）湖的热适应特性是在实验条件下首次获得的。之前适应水温为15°С的成鱼的最终首选温度为〜23°С。在鱼种和成鱼中，亚致死温度由在8°C / h的水加热速率下的临界热最大值确定，为31.6–31.9°C，最高致死温度为33.5–33.8°C。与普通的lake鱼P. phoxinus（L.）相比，min鱼的已建立的热适应特征要高，这可能是由于这些物种的生态差异所致。