Burrow Utilization in the Goby Eutaeniichthys gilli Associatedwith the Mud Shrimp Upogebia yokoyai
Burrow Utilization in the Goby Eutaeniichthys gilli Associatedwith the Mud Shrimp Upogebia yokoyai
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DOI：
10.2108/zs140055
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发表时间：
2014-08-01
影响因子：
0.9
通讯作者：
Itani, Gyo
中科院分区：
文献类型：
--
作者：
Henmi, Yumi;Itani, Gyo
在日本高知县的实验室中，我们调查了河口虾虎鱼（Eutaeniichthys gilli）对泥虾（Upogebia yokoyai）洞穴的利用。虾虎鱼利用虾洞在主机的存在，没有捕食者，当泥表面被水覆盖。虾虎鱼花了四分之一到一半的时间在虾洞在实验坦克。虾虎鱼频繁进出虾洞，每次持续数秒至数分钟。虾虎鱼也以大致相同的方式利用空的人工洞穴。建议E.鳃金龟以小型甲壳类动物和泥面上的其他有机物为食，经常利用虾洞躲避捕食者，即使没有捕食者也是如此。北太平洋湾虾虎鱼洞穴利用的重复进化与E. gilli，这是海湾虾虎鱼的最接近的外群。
We investigated the estuarine goby's (Eutaeniichthys gilli) utilization of mud shrimp (Upogebia yokoyai) burrows in laboratory experiments at Kochi, Japan. The goby utilized the shrimp burrow in the presence of the host, without predators, when the mud surface was covered with water. The goby spent one quarter to half the time in shrimp burrows in experimental tanks. The goby frequently entered and exited the shrimp burrows, with bout durations of several seconds to several minutes. The goby also utilized vacant artificial burrows in much the same manner. It is suggested that E. gilli feeds on small-sized crustaceans and other organic matter on the mud surface frequently utilizing shrimp burrows for possible predator avoidance even when no predator is present. Repeated evolution of burrow utilization in the North Pacific bay gobies in both the East and West Pacific would correlate with burrow commensalism in E. gilli, which is the most proximal outgroup of the bay gobies.