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首页> 外文期刊>Marine biology >Interactions between fangblennies (Plagiotremus rhinorhynchus) and their potential victims: fooling the model rather than the client?
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Interactions between fangblennies (Plagiotremus rhinorhynchus) and their potential victims: fooling the model rather than the client?

机译：房犬（Plagiotremus rhinorhynchus）与其潜在受害者之间的相互作用：愚弄模型而不是服务对象？

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Lepidophagous (scale-eating) blue-striped fangblennies (Plagiotremus rhinorhynchus Bleeker 1852) are often found sympatrically with the bluestreak cleaner wrasse (Labroides dimidiatus Valenciennes 1839). They have some resemblance to the juvenile L. dimidiatus and have previously been reported as aggressive cleaner wrasse mimics. We observed 14 P. rhinorhynchus on a small area in the barrier reef near Hoga Island, Indonesia to assess the effects of client size on the behaviour and attack success of fangblennies: our results suggest that fangblennies are selective with regard to victim size; fish avoided by the fangblennies are significantly larger than those not avoided and attack success is significantly higher at intermediate victim size classes. The behaviour of the victims also has a significant direct effect on the foraging success of the fangblennies; where the potential victim posed, 63.6% were ignored by the fangblenny and only 7.4% of attacks were successful on posing fish as opposed to a surprise attack success rate of 71.6%. Overall, victims which exhibited the pose behaviour were significantly smaller in size. It appears likely that the predatory strategy of these fangblennies varies with victim size and that mimicry plays a minor role in attracting potential victims. We suggest that in common with other mimetic fish the resemblance of fangblennies to juvenile bluestreak cleaner wrasse allows them to actively hunt in areas where adult cleaners are common thus, indirectly improving their feeding opportunities.
机译：经常发现鳞翅目（食鳞）蓝条纹犬齿（Plagiotremus rhinorhynchus Bleeker 1852）与蓝条纹清洁器濑鱼同属（Labroides dimidiatus Valenciennes 1839）。它们与幼小的L. dimidiatus有相似之处，并且以前被报道为攻击性的清洁濑鱼模。我们在印度尼西亚霍加岛附近的堡礁的一小片区域观察到了14头鼻斜纹夜蛾，以评估客户规模对房犬行为和攻击成功的影响：我们的结果表明，房犬对受害人的规模具有选择性。犬齿避免的鱼比未避免的鱼大得多，在中等规模的受害鱼类别下，攻击成功率明显更高。受害者的行为对犬只的觅食成功也有重大的直接影响。潜在的受害者造成了63.6％的攻击，而blblblenny忽略了这一点，只有7.4％的攻击成功诱捕了假鱼，而突击攻击的成功率为71.6％。总体而言，表现出摆姿势的受害者的身材明显较小。这些犬牙的掠夺策略似乎随受害者人数的不同而变化，模仿在吸引潜在受害者中起次要作用。我们建议，与其他模拟鱼一样，犬ble与幼小蓝斑清洁器濑鱼的相似之处使它们能够在成年清洁器常见的地区积极捕猎，从而间接改善了它们的觅食机会。

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