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ISSN 2095-1388

主管 辽宁省教育厅

主办 大连海洋大学




2023. 温度和光照周期对硬头鳟幼鱼生长、生理及行为的影响. 大连海洋大学学报, 38(2): 251-258. doi: 10.16535/j.cnki.dlhyxb.2022-219
引用本文: 2023. 温度和光照周期对硬头鳟幼鱼生长、生理及行为的影响. 大连海洋大学学报, 38(2): 251-258. doi: 10.16535/j.cnki.dlhyxb.2022-219
ZHANG Xu, ZHANG Jia, WANG Jie, LI Haixia, HU Yu, MA Zhen. 2023. Effects of temperature and photoperiod on growth, physiology and behavior of juvenile steelhead trout (Oncorhynchus mykiss). Journal of Dalian Ocean University, 38(2): 251-258. doi: 10.16535/j.cnki.dlhyxb.2022-219
Citation: ZHANG Xu, ZHANG Jia, WANG Jie, LI Haixia, HU Yu, MA Zhen. 2023. Effects of temperature and photoperiod on growth, physiology and behavior of juvenile steelhead trout (Oncorhynchus mykiss). Journal of Dalian Ocean University, 38(2): 251-258. doi: 10.16535/j.cnki.dlhyxb.2022-219


  • 基金项目:






  • 中图分类号: S917.4

Effects of temperature and photoperiod on growth, physiology and behavior of juvenile steelhead trout (Oncorhynchus mykiss)

  • Fund Project: 广东省重点领域研发计划项目(2021B0202030001)
  • 为确定硬头鳟(Oncorhynchus mykiss)幼鱼在养殖环境下的最佳温度和光照周期组合,基于生产上普遍使用的温度和光照周期,试验共设置4个处理组,分别为13 ℃ & 16L∶8D(T1)、16 ℃ & 16L∶8D(T2)、13 ℃ & 12L∶12D(T3)和16 ℃ & 12L∶12D(T4),幼鱼初始体质量为(8.0±0.5)g,在不同温度和光照周期组合条件下养殖40 d,测定不同条件下硬头鳟的生长性能、生理指标及行为表现。结果表明:试验结束时,T1组幼鱼的生长性能显著高于其他处理组(P<0.05), T4组幼鱼肝脏的SOD活性显著高于其他处理组(P<0.05),长光照组(T1、T2)幼鱼渗透压调节能力(NKA活性)显著高于自然光照组(T3、T4)(P<0.05); T1组幼鱼游泳运动能力显著低于其他处理组(P<0.05),当光照周期相同时,16 ℃处理组幼鱼集群指标(鱼到中心点的距离、鱼间的平均距离)显著低于13 ℃处理组(P<0.05); 温度和光照周期对硬头鳟幼鱼的生长性能、生理指标和行为表现均存在显著的交互作用(P<0.05)。研究表明,与温度条件相比,延长光照时间更有助于提高硬头鳟幼鱼整体的生理调节能力,在淡水养殖阶段,13 ℃ & 16L∶8D 的条件有助于提高硬头鳟幼鱼的生长和渗透压调节能力,减少幼鱼的自发性活动并增强其集群性。
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收稿日期:  2022-07-14



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