가시꺽정이(cynectes maschalis) 仔稚魚의 成長에 따른 形態發達
Development of larvae and juveniles of the cottid fish, Ocynectes maschalis Jordan et starks
- 전남대학교 수산과학연구소
- 수산과학연구소 논문집
- 제7권
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1998.1263 - 71 (9 pages)
- 13
Ocynectes maschalis Jordan et Starks caught at Pusan brook was performed in May and June 1996, describe the development of larvae and juveniles. Absorption of the yolk was completed at about 7.7 ㎜ in total length(TL), and possessed 31~33 myomeres. Flexion of the notochord started and finished at about 9.7 ㎜ in TL and about 11.5 ㎜ in TL, respectively. Aggregate numbers of all fin rays and vertebrae were completed at over 15.8 ㎜ in TL, at which time the larvae reached the juvenile stage. The pigment patten became the same as that of adults in juveniles longer than 17.5 ㎜ in TL. Vertebrate began to develop from the anterior end and to ossify posteriorly. Neural and haemal spines of vertebrae ossified always prior to the corresponding centra. Ossification of vertebrae and caudal bones was nearly completed at 15.8 ㎜ in TL.
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