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采用软骨-硬骨双染色法对初孵仔鱼到56日龄菊黄东方鲀的脊柱、附肢骨骼及皮刺的早期发育进行系统研究。结果表明,第5天髓弓出现,第9天脊柱开始软骨化,第13天脉弓出现,第17天出现硬骨环,并从前往后开始硬骨化,第29天脊柱硬骨化完成。附肢骨骼开始发育的顺序依次为胸鳍、臀鳍和背鳍、尾鳍。胸鳍的发育以2日龄胸鳍的支鳍骨原基的出现为起点,28日龄软骨质的胸鳍支鳍骨形成,42日龄胸鳍硬骨化基本完成。背鳍和臀鳍出现在9日龄,29日龄同时开始硬骨化,至38日龄时,硬骨化完成并且出现分支鳍条。尾鳍发育以11日龄长出鳍条为起始特点,至38日龄硬骨化完成。期间伴随着鳍条转移、尾下骨及侧尾下骨生长发育、长出镰刀状横骨等特点。皮刺发育始于4日龄鱼少量肚皮刺的出现,16日龄开始长出头皮刺。所有肚皮刺硬骨化几乎是同时进行,而头皮刺则是从前往后进行。研究结果可为菊黄东方鲀早期发育过程中的功能性、适应性研究及该鱼的系统演化和分类提供依据。
The early development of the spine, appendage skeleton and prickle in newly hatched larvae of 56-day-old Chrysanthemum orientalis was systematically studied by the cartilage-tuber double staining method. The results showed that on the 5th day, the medulla oblongata appeared. On the 9th day, the spine started to cartilage, the arch appeared on the 13th day, and the hard bone ring appeared on the 17th day. Appendages began to develop bones in the order of pectoral, anal and dorsal fin, caudal fin. The development of pectoral fin started with the appearance of the basal fimbriae of 2-day-old pectoral fin. The pectoral fin of 28-day-old cartilaginous plexus formed, and the pectoral finification of 42-day-old was basically completed. Dorsal and anal fins appear at 9 days of age and begin to age at 29 days of age. By the age of 38 days, sclerostinis is completed and branching rays appear. The development of caudal fin to 11 days to grow the fin as the starting point to 38 days of sclerostinosis. During the accompanying rays of the fin, tail bone and lateral tail bone growth and development, the emergence of sickle-like transverse bone and so on. Prickle development began in the 4-day-old fish, a small amount of stab appeared, 16 days old began to grow scalp prickles. All belly prickles almost simultaneously, while the scalp prickles are carried forward from the back. The results provide the basis for the functional and adaptive studies of the early development of Chrysanthemum morifolium and the evolution and classification of the fish.