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Abstract ▼ AI-Helper

Naturally beared larvae obtained from female fish kept in the aquarium were reared for 45 days in the laboratory. The naturally beared larvae were 3.19 mm in average total length (TL) with 9+15~16=24~25 myomeres. Melanophores were distributed on the dorsal margin of intestine tube, ventral margins o...

Naturally beared larvae obtained from female fish kept in the aquarium were reared for 45 days in the laboratory. The naturally beared larvae were 3.19 mm in average total length (TL) with 9+15~16=24~25 myomeres. Melanophores were distributed on the dorsal margin of intestine tube, ventral margins of the tail and around the oil globule, but none on the top of head and on the pectoral fins. The larva (3.35 mm TL) consumed all yolk and oil globule in 5 days after bearing, and jaw bones and clavicle began to be ossified rapidly. In 22 days after bearing, the larvae averaged 6.30 mm TL and the caudal notochord flex $45^{\circ}C$. Fin development in S. marmoratus larvae proceeds in the following sequence : caudal, pectoral, dorsal, anal and ventral fin.