Lu Ying-Tzu, Liu Min-Yun, He You, Liao Te-Yu
Department of Oceanography, National Sun Yat-sen University, Kaohsiung 80424, Taiwan. E-mail:
Taiwan Ocean Research Institute, National Applied Research Laboratories, Kaohsiung 852, Taiwan. E-mail:
Zool Stud. 2016 Jul 12;55:e31. doi: 10.6620/ZS.2016.55-31. eCollection 2016.
is a small goby distributed in the Ishigaki Island and Taiwan. Hobbyists found attacked on the caudal fin of fishes kept together. In this study we investigate whether this fin-eating behavior occurs in the field and whether can be considered a fin-eater. Behavior observation in a tank showed snapped off a piece of fins and swallowed. Among preserved immediately after capture, a fin fragment and a few scales were recovered in the gut of a specimen and DNA barcoding shows the fin fragment belonging to . The fin-eating behavior of occurs in captivity and in the wild. In addition, the 3D renderings of oral jaws of were provided. Oral teeth are numerous and arranged in close proximity to each other all together like a bladed dentition, which may provide the capability to shear the fin of its prey. The present study shows a fin-eater despite not feeding exclusively on fins.
是一种分布于石垣岛和台湾的小型虾虎鱼。爱好者发现其对一同饲养的鱼类的尾鳍进行攻击。在本研究中，我们调查这种食鳍行为是否在野外发生，以及是否可被视为食鳍者。在水箱中的行为观察显示它咬下一块鳍并吞咽。在捕获后立即保存的标本中，在一个标本的肠道中发现了一块鳍碎片和一些鳞片，DNA条形码显示鳍碎片属于[该虾虎鱼]。[该虾虎鱼]的食鳍行为在圈养和野外均会发生。此外，还提供了[该虾虎鱼]口腔颌骨的3D渲染图。口腔牙齿众多，全部紧密排列在一起，如同有刃的齿列，这可能使其具备剪切猎物鳍的能力。本研究表明[该虾虎鱼]是食鳍者，尽管并非仅以鳍为食。
