Fish ontogeny, allometric growth patterns, and otolith microstructure are fundamental in aquaculture and essential for understanding the early-life ecology of fish. Culter alburnus is a commercially important fish species and an excellent breeding target for aquaculture. In this study, newly hatched C. alburnus larvae were reared to the juvenile stage in a hatchery. Three days post hatch, the eyes, mouth, and intestine had developed, and the larval yolk sac had been completely absorbed. Fin rays started to differentiate in the flexion stage and were fully developed by the postflexion stage. Pigmentations were well developed in the juveniles. Culter alburnus larvae were characterized by 39–43 myomeres and 23–25 anal fin rays, swim bladder shape, and pigmentation. Head length, height, and musculature height showed positive allometric growth patterns, suggesting that head and trunk growth was prioritized. Positive allometric growth of the tail was simultaneous with the formation of fins, suggesting that swimming mode transformation, diet changes, and habitat shifts occurred after the start of the postflexion stage. Otolith growth increments in both the sagittae and lapilli were deposited daily, with the first increment formed on day 1 on the sagittae and day 4 of yolk sac absorption on the lapilli. Increments were thin and faint during the early developmental stage, gradually increasing to reach the broadest widths and the strongest contrast at the postflexion stage, which may be related to habitat shifts. This information will assist in the breeding and hatchery production of C. alburnus and establish suitable methods for analyzing this species’ spatiotemporal distributions and early-life traits.

鱼类个体发育、异速生长模式和耳石微结构是水产养殖的基础，对于了解鱼类的早期生态至关重要。Culter alburnus是一种具有重要商业价值的鱼类，也是水产养殖的绝佳育种目标。在这项研究中，新孵化的C. alburnus幼虫在孵化场饲养到幼鱼阶段。孵化三天后，眼睛、嘴巴和肠子都发育了，幼虫的卵黄囊已经完全吸收了。鳍条在屈曲阶段开始分化，并在屈曲后阶段完全发育。色素沉着在幼鱼中发育良好。鲟幼虫的特征是 39-43 个肌节和 23-25 个臀鳍条、鳔形状和色素沉着。头部长度、高度和肌肉组织高度显示出正的异速生长模式，表明头部和躯干的生长被优先考虑。尾巴的异速生长与鳍的形成同时发生，这表明在后屈阶段开始后发生了游泳方式的转变、饮食的变化和栖息地的变化。矢状面和乳突中的耳石生长增量每天都沉积，第一个增量形成在第 1 天在矢状面和第 4 天卵黄囊吸收在乳头上。在早期发育阶段增量是细而微弱的，逐渐增加到在后屈阶段达到最宽的宽度和最强的对比度，这可能与栖息地变化有关。这些信息将有助于育种和孵化场生产C. alburnus并建立合适的方法来分析该物种的时空分布和早期生命特征。