돌가자미(kareius bicoloratus) 仔稚漁의 成長에 따른 形態發達

Development of larva and juvenile of the stone flounder, Kareius bicoloratus

Artificial fertilization of stone flounder, Kareius bicoloratus (Basilewsky) caught at Pusan brook was performed in January 28, 1994 and hatched larvae were reared for 70 days to describe the development of larvae and juveniles. Newly-hatched larvae were measured 2.98 to 3.01㎜ in total length (TL, mean: 2.99㎜), and mouth and anus were not yet open. Melanophores were observed on the head and on the dorsal and ventral part of the caudal region. After 9 days the larvae attained 4.82~5.10㎜ in TL, and became the postlarvae absorbing the yolk completely. In 37 days after hatching, the larvae grew to 9.10㎜ in TL, and the caudal notochord flex at 45 Individuals of 13.52~14.74㎜ in TL (52 days after hatching) are regarded to have attained to the juvenile stage. All the fins were well formed with complete set of fin rays (D. 67~69: A. 49~52: P. 11~12: V. 6: C. 16~18).