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首页> 外文期刊>Marine biology >Host selection and ovipositor length in eight sympatric species of sculpins that deposit their eggs into tunicates or sponges
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Host selection and ovipositor length in eight sympatric species of sculpins that deposit their eggs into tunicates or sponges

机译：宿主选择和产卵中的八种Sculpins的Sympatric种类，将它们的鸡蛋存放在饰饰或海绵中

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摘要

Interspecific interactions between parasites and hosts can influence the evolution of behavioural and morphological adaptations of both parasites and their hosts. There is, however, little empirical evidence available regarding the evolution of reproductive traits driven by these interactions. In this paper, we investigated host selection and ovipositor length in nine sympatric marine sculpins that oviposit into tunicates or sponges. Field and genetic studies have revealed host use for eight out of nine species of sculpins investigated here: five species of Pseudoblennius, two species of Furcina and one species of Vellitor. For one species studied (V. minutus), no egg masses could be found. Ovipositor length reflects morphology of host species utilised: six sculpin species had extremely long ovipositors allowing females to attach eggs to the deep atrium of solitary tunicates, whereas the two species that attached their eggs to the small space of atrial siphon of colonial tunicates and the spongocoel of sponges had short ovipositors. Ovipositor length varied between solitary-tunicate spawners and species with longer ovipositors selected larger tunicates. Since the ancestral form is non-parasitic, the ovipositor evolved as an adaptation to utilise sponges and tunicates as hosts. Sculpins found sympatrically may show host specificity to avoid interspecific competition for spawning niches and ovipositors may have evolved depending on the species and size of host invertebrates.
机译：寄生虫和宿主之间的间隙相互作用可以影响寄生虫及其主持人的行为和形态适应的演变。然而，有关这些相互作用驱动的生殖特征的演变的实证证据很少。在本文中，我们研究了九个Sympatric海绵体中的宿主选择和产卵，即输卵或海绵中的排卵。田间和遗传研究揭示了八种九种石窟中的宿主用途：五种伪Blennius，两种Furcina和一种瓦片。对于研究的一个物种（V.Minutus），没有找到蛋群。 Ovipositor长度反映了所使用的宿主物种的形态：六种Sculpin物种具有极长的产卵，允许女性将鸡蛋连接到孤独的肌肤的深层荨麻疹，而用鸡蛋的两个物种到殖民突厥的小空间和水肺部的小空间海绵有短的产卵。孤立血肿的产卵器和物种之间的产卵量变化，具有较长的Ovipositors选择较大的姿势。由于祖先形式是非寄生的，因此产卵器演变为适应，以利用海绵和姿势作为主机。发现Sysptally可能显示宿主特异性以避免用于产卵的竞争，并且Oviposits可能会根据宿主无脊椎动物的种类和大小而发展。

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  • 来源
    《Marine biology》 |2019年第5期|59.1-59.13|共13页
  • 作者

    Awata Satoshi; Sasaki Haruka; Goto Tomohito; Koya Yasunori; Takeshima Hirohiko; Yamazaki Aya; Munehara Hiroyuki;

  • 作者单位

    Osaka City Univ Grad Sch Sci Lab Anim Sociol 3-3-138 Sugimoto Sumiyoshi Osaka 5588585 Japan|Niigata Univ Fac Sci Sado Marine Biol Stn Sado Japan;

    Niigata Univ Fac Sci Sado Marine Biol Stn Sado Japan;

    Niigata Univ Fac Sci Sado Marine Biol Stn Sado Japan;

    Gifu Univ Fac Educ Dept Biol Gifu Japan;

    Tokai Univ Sch Marine Sci & Technol Dept Marine Biol Shizuoka Japan|Res Inst Humanity & Nat Kyoto Japan;

    Hokkaido Univ Field Sci Ctr Northern Biosphere Usujiri Fisheries Stn Hakodate Hokkaido Japan;

    Hokkaido Univ Field Sci Ctr Northern Biosphere Usujiri Fisheries Stn Hakodate Hokkaido Japan;

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