CAJ | 학술논문

波纹唇鱼(Cheilinus undulatus)是世界著名的濒危礁栖鱼类，具有特殊的生物学特性和较高的经济价值。本研究对波纹唇鱼的胚胎发育及初孵仔鱼的形态进行了观察，将其全过程划分为胚盘形成、卵裂、囊胚、原肠-神经胚、器官发生和孵化6个阶段，共26个发育时期。波纹唇鱼的受精卵为无色透明的浮性卵，圆球形，卵径为(635.6±50.0)μm，具油球1个，其卵径显著小于多数海水鱼类。在水温27.7–29.0℃、盐度30的条件下，受精卵历时15 h 30 min孵出仔鱼。初孵仔鱼全长为(1305.5±50.0)μm，卵黄囊前部长于仔鱼头部，且油球位于卵黄囊的最前端。结果显示，波纹唇鱼卵子较小，胚胎发育较快，其较快的胚胎发育与较小的初孵仔鱼可能是导致胚后发育阶段死亡率较高的重要原因。
파문진어(Cheilinus undulatus)시세계저명적빈위초서어류，구유특수적생물학특성화교고적경제개치。본연구대파문진어적배태발육급초부자어적형태진행료관찰，장기전과정화분위배반형성、란렬、낭배、원장-신경배、기관발생화부화6개계단，공26개발육시기。파문진어적수정란위무색투명적부성란，원구형，란경위(635.6±50.0)μm，구유구1개，기란경현저소우다수해수어류。재수온27.7–29.0℃、염도30적조건하，수정란력시15 h 30 min부출자어。초부자어전장위(1305.5±50.0)μm，란황낭전부장우자어두부，차유구위우란황낭적최전단。결과현시，파문진어란자교소，배태발육교쾌，기교쾌적배태발육여교소적초부자어가능시도치배후발육계단사망솔교고적중요원인。
Thehumphead wrasse, Cheilinus undulatus, is one of the most famous endangered reef fish in the world. As a social hermaphroditic fish, it has special biological characteristics and high economic value. In this study, we observed the embryonic development ofC. undulatusandanalyzed its features under a microscopy. Six periods, including zygote, cleavage, blastula, gastrula-neural, organogenesis, and hatching, were divided during the embryonic development ofC. undulatus. These 6 periods include 26 stages, including zygote, blastoderm formation, multi-cell, morula, and tail bud stageetc. The results showed thatC. undulatus had a float, transparent, spherical egg with a big oil globule. The diameter (635.6±50.0)μm of the egg was obviously shorter than eggs of many marine fishes. The neural plate appeared in the mid to late gastrula stage, and the embryonic development ofC. undulatus was remarkably quicker than other fishes under the same condition. The fertilized eggs were hatched after 15.5 h at water temperature of 27.7?29.0℃and salinity of 30. The total length of newly-hatched larvae were (1305.5±50.0)μm with an elliptic large yolk sac over the head and a shining oil globule in the front of it. These results suggest that the embryo development of C. undulatus was faster than many other fishes due to smaller egg. The special embryonic development features of thehumphead wrasse may cause high mortality in the post embryonic stage.