The ear structure in fish, known as an otolith, is made up of minerals. 鱼身上的耳结构被称为耳石，是由矿物构成的。
As compared with that of artificial T. albonubes population, the otolith increment of wild population was higher in definition and contrast, but not regular in width. 与人工养殖的唐鱼相比，自然种群唐鱼耳石生长轮的清晰度和对比度高，但生长轮宽度规则性较低。
