• 关键词：卷载效应  幼鱼  仔虾  高温冲击  模拟试验

• 基金项目：

• 盛连喜
• 东北师范大学环境科学系, 长春 130024

• 侯文礼
• 东北师范大学环境科学系, 长春 130024

• 赵国
• 东北师范大学环境科学系, 长春 130024

• 李多元
• 东北师范大学环境科学系, 长春 130024

• 王显久
• 东北师范大学环境科学系, 长春 130024

• 汝少国
• 东北师范大学环境科学系, 长春 130024

• 摘要：根据青岛电厂运行观测和模拟实验, 分析了卷载效应中机械损伤和高温冲击对梭幼鱼(LizahaematochliaTemminckandSchlegel)和对虾仔虾(PenaeusChinesisOsne-ck)的危害。研究表明, 电厂冷却系统内流速≥2.Om/s, 滤网孔径8mm时, 对体长7-17mm和20-34mm仔虾的致死率分别为28.3%-55.3%和28.6%-66.9%;对体长20-40mm梭幼鱼的致死率为63.4%-78.8%.卷载致死率与生物的密度、体长及形态特征有关。模拟实验结果为：0.9

• Abstract：Entrainment injured rate of young fish and postlarve shrimp by high tem perature shock and mechanical force in the power plant cooling system were analyzed based on simulating test and field observation.The results showed that lethal rate of the postlarve shrimp of 7-17mm and 20-30mm are 28.3%-55.3%, diameter of screening is 8rnm in the power plant cooling system.In the same condition, the lethal rate of young fish of body length 20-40mm is 63.4%-78.8%. Diameter of screening are 8mm and 10mm, obstratice rate are 40%-48.3%and 30%-33% respectively, when water flow speed is 0.9-1.05m/s and body length of young fish is 25-42mm.Lethal rate of young fish is 20%with water temperature of 40℃ and shock duration of 2 minu-tes.

• Key words：entrainment effect  young fish  postlarve shrimp  simulating test  high temperature shock.

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