SHI Jiong1, QIAN Wei-guo1,2, TANG Zhen-zhao3, HAN Zhen-xing1, ZHANG Shuo1,2
1.College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China；2. Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai 201306, China；3.South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China
Abstract: In this paper, juvenile dusty stingfishSebastisousmarmoratuswith body weight of 32.3-65.7 g was tamed for behavior by 150 Hz square rectangular interval sound. It was found that the juveniles in the treatment group became phonotaxis to the sound 3 days after being tamed. The response time of the fish in the treatment group to the sound was shown to be descended rapidly from the second day to the fifth day, even though significantly different from that in the control group (P<0.05), nearly to the control group at the 9th day, and at a low level from the 10th day to the 25th day, without significant difference (P>0.05), the minimal level (2 seconds) at 17th day. The aggregation time of the fish in the treatment group was found to be descend from the 2nd day to the 6th day, near to that in the control group at the 12th day (P>0.05), lower than that in the control group from the 14th day, significant difference between the two groups at the 14 th-16th day, 18-21st day, and 23-25th day, and the minimal level of 26 seconds at 19th day. The fish had gradually increase in aggregation rate in the treatment group, the maximal level of 86.7% at the 20th day, and the fish in the control showed irregular aggregation, significantly lower than the fish in the treatment group in the third day (P<0.05). From the 26th day, the dusty stingfish juveniles were not fed in the tanks where cylindrical artificial reefs were disposed and find the sound aggregation. In the last 5 days, the fish still showed phonotaxis to the sound, the minimal aggregation rate of 75.0% and very significantly different from the control group (P<0.01). The findings indicated that 150 Hz rectangular interval sound had good effect on aggregation of the dusty stingfish juveniles, even in the cylindrical artificial reefs.
2014, Vol. 29 
