两种东风螺幼虫附着和变态的化学诱导研究

柯才焕; 李少菁; 李复雪; 郑重

两种东风螺幼虫附着和变态的化学诱导研究

厦门大学海洋系、海洋浮游动物生态研究中心

基金项目: 国家教委博士点基金

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出版历程
- 收稿日期: 1995-03-05
- 修回日期: 1995-12-20

摘要

摘要: 在持续24h作用下,12×10^-3mol/dm³ K⁺可有效地诱导台湾东风螺(Babylonia formosae)和方斑东风螺(B.aerolata)的浮游幼虫90%以上完全变态.持续作用24h,15×10^-3mol/dm³ K⁺对方斑东风螺幼虫有毒害作用,但作用12h可取得较好的诱导效果.增加K⁺诱导变态的稚贝能正常活动和摄食.增加K⁺诱导的幼虫变态率随幼虫平均壳高的增大而提高.L-多巴、肾上腺素和去甲肾上腺素在5.5×10^-6～5.5×l0^-5mol/dm³时对方斑东风螺幼虫的变态无诱导活性,而多巴胺在10^-4mol/dm³时可诱导较12×10^-3mol/dm³ K⁺约少一半的变态率.钾通道阻滞剂TEA对K⁺诱导两种东风螺幼虫变态无阻抑作用.根据添加KCl诱导幼虫变态试验结果,初步认为幼虫获得变态能力时的壳高,在台湾东风螺是860.2～1009.8μm,在方斑东风螺是849.6～956.0μm.两种东风螺的浮游幼虫均有变态延迟现象.
- 化学诱导 /
- 变态 /
- 台湾东风螺 /
- 方斑东风螺 /
- 幼虫

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参考文献(9)

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