不同光照强度对黄盖鲽仔稚鱼摄食情况的影响  

Effect of Different Light Intensity on Feeding Condition of Larvae and Juveniles of Pseudopleuronectes yokohamae

作　　者：王荟杰 刘越 代乾良 武世雄 王伟 WANG Hui-jie;LIU Yue;DAI Qian-liang(Liaoning Key Laboratory of Applied Biology and Aquaculture of Fish,Dalian Ocean University,Dalian,Liaoning 116023)

机构地区：[1]大连海洋大学辽宁省北方鱼类应用生物学与增养殖重点实验室,辽宁大连116023

出　　处：《安徽农业科学》2022年第3期79-83,共5页Journal of Anhui Agricultural Sciences

基　　金：辽宁省科技重大专项计划项目(2020JH1/10200002)。

摘　　要：分别以20、25和35日龄的黄盖鲽(Pseudopleuronectes yokohamae)仔稚鱼为试验对象,设置光照强度0~1000 lx的9个试验组,计算黄盖鲽仔稚鱼的摄食强度和90 min内的摄食率。再以20 d黄盖鲽仔稚鱼为试验对象,设置光照强度100~500 lx的5个试验组,计算90 min内的摄食效率。结果表明:在0~1000 lx光照强度内,黄盖鲽仔稚鱼的最佳摄食强度对应的光照强度为100~600 lx。在光照强度0~1000 lx内,黄盖鲽仔稚鱼达到最佳摄食强度时的光照强度为100~600 lx。20 d和35 d仔稚鱼在光照强度400 lx时摄食强度最大,其中35 d日龄仔稚鱼摄食强度随光照强度增加而减弱。摄食效率在进食后10 min达到最大,随后开始降低。试验结果明确了黄盖鲽仔稚鱼最佳摄食光照强度,为黄盖鲽人工育苗及健康养殖技术提供依据。The feeding intensity and feeding rate within 90 min were calculated by using 9 experimental groups of 20,25 and 35-day age larvae of Pseudopleuronectes yokohamae under light intensity of 0-1000 lx,respectively.Then,five experimental groups with light intensity of 100-500 lx were set to calculate the feeding efficiency within 90 minutes.The results showed that in the light range of 0-1000 lx,the optimal feeding intensity corresponding to the light intensity range of 100-600 lx for larvae and juveniles of Pseudopleuronectes yokohamae.The feeding intensity of 20-day-old and 35-day-old larval fish was the highest when the light intensity was 400 lx,and the feeding intensity of 35-day-old larval fish decreased with the increase of light intensity.The feeding efficiency reached the maximum at 10 min after eating,and then began to decrease.The results indicated the optimal feeding light intensity for larvae and juveniles of fish,which provided the basis for artificial seedling breeding and healthy breeding technology of Pseudopleuronectes yokohamae.

关 键 词：黄盖鲽 仔稚鱼 光照强度 摄食 

分 类 号：S965[农业科学—水产养殖]