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为了解音响驯化技术对南海北部真鲷(Chrysophrys major)幼鱼的驯化效果,在实验室条件下采用200Hz方波连续音对体长4.4～6.6 cm的真鲷幼鱼进行连续8 d音响驯化,结果表明:对照组(无音响驯化组)真鲷幼鱼试验期间在水池中随机分布,试验组(音响驯化组)真鲷幼鱼在驯化期间出现次数最大的区域逐渐向声源靠近。驯化期间试验组真鲷幼鱼的反应时间逐渐缩短,驯化第4天后反应时间无明显变化,驯化全过程反应时间均快于对照组;驯化期间聚集时间逐渐缩短,驯化第4天后聚集时间无明显变化,从第3天起快于对照组;停留时间从第3天增加明显并远高于对照组;聚集率呈逐渐增加趋势,第4天后聚集率无明显变化,整个驯化过程,试验组聚集率均高于对照组。由此可见,200 Hz方波连续音对南海北部真鲷幼鱼具有明显的驯化效果,且在驯化4 d后真鲷幼鱼即可建立明显的条件反射。
In order to understand the domestication of juvenile Chrysophrys major in the northern South China Sea, juvenile red sea bream of 4.4 ~ 6.6 cm in length was subjected to continuous domestication for 8 days under the laboratory conditions using 200 Hz square wave continuous tone, The results showed that in the control group (juvenile acclimation group), the juvenile red sea breams were randomly distributed in the ponds during the experiment. The juveniles of the juvenile seabream in the experimental group (acclimation group) gradually moved towards the sound source in the areas where the juvenile seabream occurred most during domestication. During the acclimation period, the reaction time of juvenile red sea bream was gradually shortened. After the acclimation, there was no significant change in the reaction time after 4 days of acclimation, and the reaction time was faster in acclimation than in the control group. The acclimation time decreased gradually during acclimation period, Changes from the third day faster than the control group; residence time increased significantly from the third day and much higher than the control group; the aggregation rate showed a gradual increase in the fourth day after the concentration had no significant change during the entire acclimation process, experimental group aggregation Rates were higher than the control group. It can be seen that the 200 Hz square wave continuous wave has obvious domestication effect on juvenile red sea bream in the South China Sea. After being domesticated for 4 days, the juvenile red sea bream can establish the obvious conditioned reflex.