光色对豹纹鳃棘鲈幼鱼摄食、生长和存活的影响  

Effect of light color on feeding, growth, and survival of Plectropomus leopardus juveniles

作　　者：吴亮[1,2] 吴洪喜[2,3] 马建忠[2,3] 王瑶华[2,3] 陈婉情 刘志明[1,2] 关献涛[1,2] WU Liang WU Hong-xi MA Jian-zhong WANG Yao-hua CHENG Wan-qing LIU Zhi-ming GUAN Xian-tao(School of Fisheries and Life, Shanghai Ocean University, Shanghai 201306, China Zhejiang Mariculture Research Institute, Wenzhou 325005, China Zhejiang Key Lab of Exploitation and Preservation of Coastal Bio-Resource, Wenzhou 325005, China)

机构地区：[1]上海海洋大学水产与生命学院,上海201306 [2]浙江省海洋水产养殖研究所,浙江温州325005 [3]浙江省近岸水域生物资源开发与保护重点实验室,浙江温州325005

出　　处：《海洋科学》2016年第11期44-51,共8页Marine Sciences

基　　金：浙江省科技计划项目(2015F50009);浙江省近岸水域生物资源开发与保护重点实验室人才培养项目(2012F20020);温州市海水增养殖产业科技创新团队建设项目(C20120004);中央立项现代农业生产发展资金鱼类产业提升项目(浙海渔计[2013]48号)~~

摘　　要：为探究光色对鱼类摄食、生长和存活的影响,作者在模块化小型循环水养殖系统中,以豹纹鳃棘鲈(Plectropomus leopardus)幼鱼(体长21.2 cm±1.22 cm,体质量112.46 g±2.632 g)为对象,设置5种光色环境(红、黄、绿、白和黑暗),进行了4个月的循环水养殖实验。结果表明:绿光下豹纹鳃棘鲈幼鱼摄食率高、饵料转化率高、饵料系数低,但不同光色下豹纹鳃棘鲈幼鱼的摄食不存在显著性差异(P>0.05);幼鱼的体长增长,绿光组和红光组大,且与其余3组间差异显著(P<0.05);幼鱼的体质量增长,绿光组最大,红光组和黑暗组次之,白光组和黄光组最小,且三者间差异显著(P<0.05);各组幼鱼的肥满度并没有显著性差异(P>0.05);除白光组幼鱼存活率(只有50%)最低外,其余各组幼鱼存活率均在80%以上,其中绿光组最高,为88.33%。可见,在循环水养殖生产中,绿光环境有利于豹纹鳃棘鲈幼鱼的摄食、生长和存活。Abstract： To investigate the effect of light color on feeding, growth, and survival of Plectropomus Leopardus, we designed a series of aquaculture water-tank experiments for a small modular circulating-water aquaculture system using five different light colors （red, yellow, green, white, and black） on juvenile fish [initial length （21.2 cm±1.22 cm）; initial weight （112.46 g±2.632 g）]. The system was operated on a four-month circulating-water cycle. Our key resuits are summarized as follows： High-strength feeding intensity （（0.995%±0.052%）.d）, a high feed-conversion rate （85.767%±0.446%）, and the lowest bait coefficient （1.166±0.034） for the juveniles were observed under green light conditions; however, there were no significant differences in feeding of the juveniles under different light colors （P〉0.05）; A high growth rate was observed under green and red light conditions, and the growth in this case was significantly different from that in the other three groups （P〈0.05）; There were no significant differences in the condition factor （CF） for different light-treatment groups （P〉0.05）; The lowest survival rate （50%） was observed under white light; the survival rates in the other four groups were all higher than 80%. The maximum survival rate （88.33%） was observed under green light. In conclusion, juvenile fish may survive, grow, and feed better under green light in indoor circulating-water aquaculture systems.

关 键 词：豹纹鳃棘鲈(Plectropomus leopardus) 光色 摄食 生长 存活 

分 类 号：S96[农业科学—水产养殖]