李毅¹, 周大颜², 陈晓磁¹, 许莉莉^3,4, 曹亮^3,4
1.华能霞浦核电有限公司 宁德 351000;2.广西水产引育种中心, 南宁 530031;3.中国科学院海洋研究所海洋大科学研究中心 海洋生态与环境科学重点试验室, 青岛 266071;4.海洋国家实验室海洋生态与环境科学功能实验室, 青岛 266071

摘要:
本研究模拟研究了福宁湾四种常见海洋生物（大黄鱼Larimichthys crocea、黑鲷Sparus macrocephalus、口虾蛄Oratosquilla oratoria和三疣梭子蟹Portunus trituberculatus）在夏季温排水动态和静态温升条件下的热耐受性。结果表明，动态温升条件下四种受试生物的临界热最大值（CTM）均随温升速率的升高呈先上升后降低趋势，1℃/h和2℃/h处理组中各受试生物的热耐受性较高，四种受试生物的热耐受能力依次为三疣梭子蟹 > 黑鲷 > 大黄鱼 > 口虾蛄。静态试验结果表明：夏季自然水温30.0℃时四种受试生物的24小时高起始致死温度（24 h UILT₅₀）最低为35.6℃，建议夏季核电厂址海域排放口的最高排放温度限值不超过39.6℃。研究结果为核电厂温排水的环境影响评估提供了基础数据，为核电厂温排水的排放控制方案优化提供科学依据。
关键词:热耐受性温升速率高起始致死温度临界热最大值
DOI：10.11759/hykx20200304003
分类号:Q178.1;X57
基金项目:山东省重大科技创新工程专项（2018SDKJ0501-1）；青岛海洋科学与技术试点国家实验室海洋生态与环境科学功能实验室青年人才培育项目（LMEES-YTSP-2018-01-01）

Thermal tolerance of common marine organisms in Funing Bay by simulation of temperature increase in summer from thermal drainage
LI Yi¹, ZHOU Da-yan², CHEN Xiao-ci¹, XU Li-li^3,4, CAO Liang^3,4
1.Huaneng Xiapu nuclear power development Co. Ltd., Ningde 351000, China;2.Aquatic Species Introduction and Breeding Center of Guangxi, Nanning 530031, China;3.CAS Key Laboratory of Marine Ecology and Environment Sciences, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;4.Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
Abstract:
In this study, we used dynamic and static methods to investigate the thermal tolerance of four common marine species (Larimichthys crocea, Sparus macrocephalus, Oratosquilla oratoria, and Portunus trituberculatus) in Funing Bay. The results showed that the critical thermal maximum values of the four species first increased and then decreased with increase in the rate of temperature increase, and the organisms in the 1℃/h and 2℃/h groups had higher heat resistance. The order of the heat tolerances of the four species were determined to be as follows:P. trituberculatus > S. macrocephalus > L. crocea > O. oratoria. Static test results showed that the lowest 24-h upper incipient lethal temperature of the four tested organisms was 35.6℃ when the natural water temperature was 30.0℃, and the maximum discharge temperature from the discharge port at the nuclear power plant site was calculated to be 39.6℃ in summer. The results of this study provide the basic data for assessing the environmental impact of thermal discharge from nuclear power plants and provide a scientific basis for optimizing discharge control schemes for the thermal drainage of nuclear power plants.
Key words:heat tolerancerate of temperature increase24-hour upper incipient lethal temperaturecritical thermal maximum





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