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对鲫鱼仔、幼鱼及成鱼的耳石研究表明，鲫鱼耳石的第１日轮在孵化后２４～４８ｈ出现，以后每天形成１轮。耳石的轮纹数（Ｎ）和日轮数（Ｄ）的关系为Ｎ＝Ｄ－１．１４６。耳石平均长径和体全长成直线相关。鲫鱼耳石在发育过程中经历了不同形态的变化，增厚较慢，直到孵出后第４０天，不经研磨，其轮纹仍清晰可数，是研究鱼类耳石形成机理以及其他相关研究的好材料。微耳石出现较晚，星耳石是研究鲫鱼耳石的首选材料。本文还对早期耳石的制备方法进了探讨。
Studies on the otoliths of Carassius auratus, juvenile and adult fish showed that the first day of the otolith of Carassius auratus appeared 24 ~ 48h after hatching and formed one round every day. The relationship between the number of wheel ridges (N) and the number of days (D) of otolith is N = D-1.146. The average otolith diameter and body length into a straight line related. Carp otolith experienced different morphological changes in the development process, thickening slow, until 40 days after hatching, without grinding, the wheel mark is still clear and countable, is to study the mechanism of fish otolith formation and other related Good material for research. Microprotoliths appear late, otolith is the study of carp otolith the material of choice. This article also discusses the preparation of early otolith.