Fishery Modernization ›› 2026, Vol. 53 ›› Issue (1): 74-83. doi: 10.26958/j.cnki.1007-9580.2026.01.007
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ZHANG Zheng1 ,ZHAO Jingsi 1 ,TIAN Tao 1,2,3 ,YU Xiaoming 1,2,3 ,XING Binbin 1,2,3 ,YIN Leiming1,2,3 ,WU Zhongxin 1,2,3( 1 Centre for Marine Ranching Engineering Science Research of Liaoning,Dalian 116023,Liaoning,China;2 Marine Ranching Industry Research Institute of Dalian Ocean University,Dalian 116023,Liaoning,China;3 Key Laboratory of Facility Fisheries,Ministry of Education,Dalian 116023,Liaoning,China)
张正1 ,赵婧思1 ,田涛1,2,3 ,于晓明1,2,3 ,邢彬彬1,2,3 ,殷雷明1,2,3 ,吴忠鑫1,2,3( 1 大连海洋大学辽宁省海洋牧场工程技术研究中心 , 辽宁 大连 ,116023;
2 大连海洋大学海洋牧场产业研究院 ,辽宁 大连 ,116023;
3 设施渔业教育部重点实验室(大连海洋大学) ,辽宁 大连 ,116023)
Abstract: To explore the responses of Sebastes schlegelii to different dissolved oxygen environments,We selected juvenile S. schlegelii with an average weight of (0. 520 ± 0. 130 g) and set up 4 groups of different DO ( 3,5,7, 10 mg/L). The experimental period was 28 days, and the effects of different dissolved oxygen levels on the movement behavior, growth performance,and blood biochemistry of juvenile S. schlegelii were observed and analyzed. The results showed that : with the increase of dissolved oxygen levels,the spontaneous swimming speed,inter-individual distance and nearest neighbor distance of the experimental fish significantly increased and reached the highest in group 10 mg/L,while cohesion,coordination and polarity gradually decreased. With the increase of dissolved oxygen levels,the survival rate,specific growth rate,feed conversion rate ,liver-to-body ratio and viscera-to-body ratio of the experimental fish significantly increased and reached the maximum in Group 10 mg/L. With the increase of dissolved oxygen levels,the contents of total protein,total cholesterol and triglyceride in the blood of the fish gradually increased,the contents of glucose and alanine aminotransferase first decreased and then remained stable,the content of aspartate aminotransferase first decreased and then increased.
Key words: dissolved oxygen, Sebastes schlegelii, grow, group behaviour, physiology
摘要： 为探究许氏平鲉(Sebastes schlegelii) 幼鱼对不同溶氧环境的反应 ,选取平均体质量 0. 520±0. 130 g 的许氏平鲉幼鱼 ,设置 3、5、7(对照组)、10 mg/L 溶氧含量处理组 ,试验周期 28 d,观察分析了不同溶氧水平对许氏平鲉幼鱼运动行为、生长性能及血液生化的影响 。结果显示 :随着水体溶氧含量的增加 ,试验鱼的 自发游泳速度、个体间距离、最近邻距离显著增大(P<0. 05) ,且均在 10 mg/L 溶氧水平时达到最高 ,凝聚力、协调性及极性逐渐减小;当水体溶氧含量不断增加时 ,许氏平鲉幼鱼的存活率、特定生长率、饲料转化率、肝体比及脏体比这几项指标 ,均表现出显著提升的趋势(P<0. 05) ,且均在 10 mg/L 组时达到最大;随着水体溶氧含量的增加 ,鱼体血液中总蛋白、总胆固醇、甘油三酯含量逐渐升高 ;葡萄糖、谷丙转氨酶含量先降低后持续稳定;谷草转氨酶含量先降低后升高 。结果表明 ,低氧胁迫会影响许氏平鲉的行为以及生理指标 ,并造成许氏平鲉生长缓慢。
