王 峰^1，2，3，雷霁霖²，高淳仁²，黄 滨 ²，赵 侠^1，2
（1 中国海洋大学水产学院，山东 青岛 266003；
2 青岛市海水鱼类种子工程与生物技术重点实验室 中国水产科学研究院黄海水产研究所，山东 青岛266071；
3 青岛农业大学动物科技学院，山东 青岛266109）

摘要：在封闭循环水养殖条件下，半滑舌鳎（Cynoglossus semilaevis Günther）的平均养殖密度（15. 07±0. 22）kg/m3，观测半滑舌鳎的呼吸频率，检测养殖水体中溶氧、氨氮、亚硝酸氮等24 h内摄食和代谢的变化规律。结果表明：（1）半滑舌鳎摄食前、后的呼吸频率平均值分别为27.3次/min和34.7次/min，摄食后的呼吸频率显著高于摄食前；（2）投喂前、后2.5 h内，水中溶氧一直处于下降趋势，在摄食2.5 h后，水中溶氧处于稳定的上升趋势；（3）投喂后，氨氮、亚硝酸氮浓度显著增高，2.5 h后达到峰值，随后缓慢降低，在下次投喂前0.5 h达到最低值。说明半滑舌鳎摄食活动对循环水养殖水质的影响呈现规律性，也说明循环水养殖模式可以满足半滑舌鳎对水质的基本要求。

关键词：半滑舌鳎；循环水养殖；摄食；水质

Effect of Cynoglossus semilaevis adult fish feeding rhythm in recirculating aquaculture to main water quality factors
WANG Feng1, 2, 3, LEI Ji-lin 2, GAO Chun-ren 2, HUNG Bin2, ZHAO Xia1, 2
(1 College of fisheries, Ocean University of China, Qingdao 266003, China; 2 Marine Fish Breeding and Biotechnology Laboratory, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Science, Qingdao 266071, China;
3 College of animal science，Qingdao Agriculture University, Qingdao 266109, China )

Abstract: In order to collect more data base of intensive Aquaculture of Cynoglossus semilaevis, in high density of the closed recirculating aquaculture system, Cynoglossus semilaevis’s breath rate were observed, and the changing of DO, NH3-N and NO2－-N in culturing water were also collected in the key times of a day when the fish’s feeding and metabolism changed. There were three results as follows: (1) The average breath rate of Cynoglossus semilaevis was 27.3 r/min before feeding and 34.7 r/min after feeding. It shows that the number of the fish’s breath rate ascend remarkably after they were feed; (2) The number of DO was in a dropping trend in the 2.5 hours before and after feeding, and in an rising trend 2.5 hours after feeding; (3) The numbers of NH3-N and NO2－-N in the culture water remarkably rise after breeding, and 2.5 hours later it touch an summit number. After that, the number drop down slowly to the lowest number until 0.5 hours before next feeding. The result showed that there were regulations of effect feeding to culture water, also show that recirculation aquaculture system meet the need of water quality.

Keywords: Cynoglossus semilaevis; recirculating aquaculture; feeding; water quality

基金项目：农业公益性行业科研专项（nyhyzx07-046）；国家鲆鲽类产业技术体系建设专项资金（nycytx-50）；农业公益性行业科研专项资助（201003024）
作者简介：王峰（1977—），男，讲师，博士研究生，研究方向：鱼类增养殖、循环水养殖模式。E-mail: randy966@163.com
通讯作者：雷霁霖（1935—），中国工程院院士，研究员，博士生导师，研究方向：海水鱼类生态、繁殖和增养殖技术。 E-mail: leijl@ysfri.ac.cn

（来源：《渔业现代化》2012,39(4):8-11，21）