Thornton, New South Wales, Australia.
J Fish Biol. 2020 Nov;97(5):1564-1568. doi: 10.1111/jfb.14503. Epub 2020 Sep 23.
This study investigated tool use by the graphic tuskfish Choerodon graphicus in New Caledonia. Anvils included rocks, a conical shell, flat dead corals and a concrete mooring. Sixteen tool-use events were observed in 10 h. A tool-use event often involved more than one anvil (44%). On average, C. graphicus struck prey six times and spent 84 s at an anvil. The only prey items brought to anvils were bivalve and gastropod molluscs. These results provide a foundation for future research on tool use in fishes.
本研究调查了新喀里多尼亚的纹腹叉鼻鲀使用工具的情况。所使用的工具包括岩石、锥形贝壳、扁平死珊瑚和混凝土系泊物。在 10 小时内观察到了 16 次工具使用事件。一个工具使用事件通常涉及不止一个砧（44%）。平均而言，纹腹叉鼻鲀会击打猎物六次，并在砧上花费 84 秒。唯一被带到砧上的猎物是双壳类和腹足类软体动物。这些结果为鱼类工具使用的未来研究奠定了基础。
