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不同饵料培养对罗格尼猛水蚤发育过程的影响

顾靓 胡思敏 马林 张琛 张贝叶 黄晖 刘胜

顾靓,胡思敏,马林,等. 不同饵料培养对罗格尼猛水蚤发育过程的影响[J]. 海洋学报,2024,46(9):77–85 doi: 10.12284/hyxb2024092
引用本文: 顾靓,胡思敏,马林,等. 不同饵料培养对罗格尼猛水蚤发育过程的影响[J]. 海洋学报,2024,46(9):77–85 doi: 10.12284/hyxb2024092
Gu Liang,Hu Simin,Ma Lin, et al. Effects of different diet culture the developmental process of the Robertgurneya sp.[J]. Haiyang Xuebao,2024, 46(9):77–85 doi: 10.12284/hyxb2024092
Citation: Gu Liang,Hu Simin,Ma Lin, et al. Effects of different diet culture the developmental process of the Robertgurneya sp.[J]. Haiyang Xuebao,2024, 46(9):77–85 doi: 10.12284/hyxb2024092

不同饵料培养对罗格尼猛水蚤发育过程的影响

doi: 10.12284/hyxb2024092
基金项目: 国家自然科学基金(42176118);国家重点研发计划课题(2022FY100602)。
详细信息
    作者简介:

    顾靓(1995—),女,河南省南阳市人,硕士,主要从事海洋底栖动物生态学研究。E-mail:guliang21@mails.ucas.ac.cn

    通讯作者:

    刘胜(1970—),男,四川省广安市人,研究员,主要从事珊瑚礁生态学研究。E-mail:shliu@scsio.ac.cn

  • 中图分类号: Q959.223+.32

Effects of different diet culture the developmental process of the Robertgurneya sp.

Funds: National Natural Science Foundation of China (42176118); National Key Research a nd Development Project of C hina (2022FY100602)
More Information
  • 摘要: 猛水蚤是分布广泛的小型底栖桡足类,在珊瑚礁区的礁石表生藻席中尤为丰富,由于其生境特殊性,目前对发育过程、培养条件的研究较少。本研究于2023年夏季在海南三亚鹿回头珊瑚礁区采集礁石表生藻席,从中分离出一种猛水蚤,经形态学鉴定其属于罗格尼猛水蚤属(Robertgurneya sp.)。在实验室内对其基本发育过程进行观察和记录,并研究了不同饵料培养方式(单种藻和混合藻)对其发育过程的影响。结果显示,罗格尼猛水蚤的成体体长为0.5~0.7 mm,生命周期为61~68 d。单次怀卵量、产卵次数、繁殖周期和生命周期在不同饵料培养下没有显著差异,但在混合藻培养下,罗格尼猛水蚤在胚胎发育期的平均卵径、孵化率、幼体存活率、无节幼虫Ⅵ期的最大体长明显高于单种藻培养组(p < 0.05),且其胚胎发育阶段和桡足幼体期的累计发育时间明显较短(p < 0.05)。研究结果表明,该猛水蚤具有较短的生命周期和较强的繁殖能力,鉴于藻席中存在丰富的底栖微藻和有机碎屑,栖息其中的猛水蚤可能能够为珊瑚礁小型鱼类等捕食者提供巨大的潜在食物资源,因此在珊瑚礁生态系统的物质循环和能量流通中发挥着重要的作用。
  • 图  1  罗格尼猛水蚤的采样区域(红色星号)

    Fig.  1  Sample area(red asterisk) of Robertgurneya sp.

    图  2  罗格尼猛水蚤在胚胎发育期的形态变化

    A. 交配受精;B. 多细胞期;C. 壳状胚胎期;D. 附肢原基出现期;E. 色素形成期;F. 眼点出现期;G. 破膜孵化

    Fig.  2  Morphological variation during embryonic development of Robertgurneya sp.

    A. Ovulation phase; B. multicellular stage; C. formation of carapace type embryo; D. appearance of appendage anlage; E. formation of pigment; F. appearance of eyespot; G. hatching

    图  3  罗格尼猛水蚤在无节幼虫、桡足幼体、成体阶段的形态变化

    Fig.  3  Morphological variation during Nauplius、Copepodite and adult of Robertgurneya sp.

    图  4  不同饵料培养对罗格尼猛水蚤各阶段体长的影响

    Fig.  4  Effects of different diet cultivation to the body length of Robertgurneya sp.

    图  5  不同饵料培养对罗格尼猛水蚤累计发育时间(a),怀卵量(b),孵化率、成活率(c)的影响

    Fig.  5  Effects of different diet cultivation to the accumulated developmental time (a), egg number (b), hatching rate and survival rate (c) of Robertgurneya sp.

    表  1  不同饵料培养对罗格尼猛水蚤繁殖周期、产卵次数、生命周期的影响

    Tab.  1  Effects of different diet cultivation on the reproduction cycle,brood number and life cycle of the Robertgurneya sp.

    营养类型 繁殖周期/d 产卵次数/只 生命周期/d
    单种藻 24.60 ± 1.14b 6.60 ± 0.55b 64.6 ± 3.36b
    混合藻 23.80 ± 0.84b 7.40 ± 0.89b 65.4 ± 4.51b
      注:相同字母代表不同饵料培养对罗格尼猛水蚤的繁殖周期、产卵次数及生命周期在p < 0.05 水平上无显著差异。
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  • 收稿日期:  2024-03-13
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