温度对不同体质量红鳍东方鲀幼鱼耗氧率和排氨率的影响  

Influence of temperature on oxygen consumption and ammonia excretion in tiger puffer Takifugu rubripes juveniles with various body weights

作　　者：何亚[1] 王华[1] 王伟[1] 刘恒明[2] 张涛 姜志强[1] 

机构地区：[1]大连海洋大学农业部北方海水增养殖重点实验室,辽宁大连116023 [2]大连海洋大学海洋科技与环境学院,辽宁大连116023 [3]大连天正实业有限公司,辽宁大连116011

出　　处：《大连海洋大学学报》2014年第5期481-485,共5页Journal of Dalian Ocean University

基　　金：国家海洋公益性行业科研专项(2012418025);辽宁省科技厅重大项目(2011203005);辽宁省教育厅计划项目(L2011117);辽宁省科学事业公益研究基金资助项目(2012005001);辽宁省自然科学基金资助项目(2014020149)

摘　　要：在实验室条件下,进行了3种温度（15、20、25℃）对体质量分别为（23.9±2.0）、（30.1±1.5）、（43.8±1.6）g的红鳍东方鲀Takifugu rubripes幼鱼呼吸和代谢的影响试验。结果表明：在温度为15~25℃时,红鳍东方鲀幼鱼的耗氧率（RO）和排氨率（RN）均随着温度的升高而增大,RO和RN与温度（T）之间的关系符合指数函数关系;红鳍东方鲀幼鱼的耗氧率和排氨率均随着鱼体质量的增加而减少,RO和RN与体质量（W）之间的关系符合幂函数关系;红鳍东方鲀幼鱼的O/N值随温度的升高而降低,随体质量的增加而升高。研究表明,在试验温度范围内,红鳍东方鲀幼鱼对温度的敏感性相对较弱,温度变化对其代谢的影响较小,且红鳍东方鲀幼鱼摄取的主要能源物质是蛋白质。The effects of temperature （ 15 , 20 and 25 ℃） and body weight [ （ 23 . 9 ± 2 . 0 ） , （ 30 . 1 ± 1 . 5 ） and （43. 8±1. 6） g] on oxygen consumption rate （ RO ） and ammonia excretion rate （ RN ） were investigated in tiger puffer Takifugu rubripes juveniles in a lab. The results showed that the values of RO and RN were increased with the water temperature increasing, with exponential relationship, at water temperature （ T） from 15 ℃ to 25 ℃. How-ever, the values of RO and RN were shown to be decreased with the increase in fish body weight, with power rela-tionship. In addition, the O/N ratios of the juveniles were decreased with warming water temperature, but in-creased with increase in body weight. The findings indicate that the tiger puffer juveniles have the relatively weak sensitivity to temperature, and less effect of temperature fluctuation on metabolism, and use dietary protein as main energy sources.

关 键 词：红鳍东方鲀 耗氧率 排氨率 温度 

分 类 号：S917.4[农业科学—水产科学]