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首页> 外文期刊>Marine biology >Anemonefish aggressiveness affects the presence of Dascyllus trimaculatus co-existing with host anemones
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Anemonefish aggressiveness affects the presence of Dascyllus trimaculatus co-existing with host anemones

机译：Anemonefish积极影响Dascyllus Trimaculatus的存在与宿主银源

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摘要

One of the most well-known symbiosis of coral reefs is the relationship between host anemones and anemonefish. Host anemones are used not only by anemonefish but also by other species such as the immature phase of the three spot damsel (Dascyllus trimaculatus). Anemonefish can be a superior competitor to D. trimaculatus, which shares host anemones as shelter resources. Interspecific competition for shelter resources is considered to be an important factor affecting community structure in coral reef fish. In this study, we investigated the factors affecting host anemone utilization of D. trimaculatus around Okinawajima Island. Among 296 colonies, D. trimaculatus inhabited 52 (= 17.6%) host anemones. Decision tree analyses (CHAID) using five independent variables (species of host anemone and anemonefish, presence/absence of adult anemonefish, numbers of immature anemonefish, and size of host anemone) revealed that D. trimaculatus rarely occupied the anemones Entacmaea quadricolor and Stichodactyla haddoni, and seldom cohabited with Amphiprion frenatus and A. polymnus. We experimentally presented a clay model of D. trimaculatus to colonies of six species of anemonefish and compared the duration of aggressive behavior. The aggressive behaviors of A. frenatus and A. polymnus were significantly longer and more intense than that of the other four species. Our findings demonstrate that species composition in anemone symbioses may be affected by coexisting anemonefish as aggressive behavior toward intruders differs among species.
机译：珊瑚礁最着名的共生之一是宿主Anemones和Anemonefish之间的关系。宿主银源素不仅由遮阳虫使用，而且由其他物种，如三个斑点谷物（Dascylus trimaculatus）的未成熟阶段。 Anemonefish可以是D. Trimaculatus的优越竞争对手，它将主持人作为庇护所资源分享。庇护所的三种竞争被认为是影响珊瑚礁鱼群结构的重要因素。在这项研究中，我们调查了影响冲绳岛岛周围D. Trimaculatus的宿主银莲花属性的因素。在296个菌落中，D. Trimaculatus居住52（= 17.6％）宿主银酮。决策树分析（CHAID）使用五个独立变量（宿主海葵和白莲花鱼种类，成年人的存在/缺失，未成熟的白鱼数量，宿主海葵的数量）揭示了D. Trimaculatus很少被占用Anemones Entacmaea Quedricolor和Stichodactyla Haddoni并且很少与Amphiprion Frenatus和A. polymnus同植。我们通过实验向六种Anemonefish的殖民地呈现D. Trimaculatus的粘土模型，并比较了侵略性行为的持续时间。 A.Frenatus和A. polymnus的侵略性行为明显更长，比其他四种物种更强烈。我们的研究结果表明，海葵中的物种组成可以通过将Anemone鱼共存，因为对入侵者的侵袭行为不同。

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  • 来源
    《Marine biology》 |2020年第6期|84.1-84.13|共13页
  • 作者

    Hayashi Kina; Tachihara Katsunori; Reimer James Davis;

  • 作者单位

    Univ Ryukyus Grad Sch Engn & Sci 1 Senbaru Nishihara Okinawa 9030213 Japan;

    Univ Ryukyus Grad Sch Engn & Sci 1 Senbaru Nishihara Okinawa 9030213 Japan;

    Univ Ryukyus Grad Sch Engn & Sci 1 Senbaru Nishihara Okinawa 9030213 Japan|Univ Ryukyus Trop Biosphere Res Ctr 1 Senbaru Nishihara Okinawa 9030213 Japan;

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