碩士 / 國立臺灣海洋大學 / 水產養殖學系 / 98 / The study used the clear and stain method to confer early skeletal development in larvae and juvenile of the orange-spotted and giant grouper. The larvae of Epinephelus coioides (about 2.4mm TL) had not developed significant skeleton at the first day after hatching(DAH), but some already had cleithra of os embranaceum. At the second DAH(about 2.5mm TL), the larvae could develop the maxilla of membranaceum, Meckel’s cartilage, quadrate, symplectic-hyomandibular cartilage, ceratohyal-epihyal cartilage, trabecula and coraco-scapular cartilage in the oral region. At the third DAH(about 2.7mm TL), besides all of the foregoing cartilage had lengthened and broadened, the basibranchial and ceratobranchial cartilage become more significant. The scleral cartilage had taken shape at the fourth DAH(about 2.8mm TL). The embranaceum of the 2nd dorsal and pelvic fin spines appear and lengthen at the 9th DAH(about 3.4mm TL). The dentary had ossified at the 12th DAH(about 3.5mm TL). At the 16th DAH(about 4.3mm TL), the embranaceum of the preopercle appear. The neural spine and haemal spine cartilage are forming in vertebrae. At the 21th DAH(about 5.6mm TL), the oral region had almost ossified. The bones in branchial region were appeared. The frontal had ossified, too. The preflexion of notochord was begun, and the caudal fin had developed. At the 27th DAH(about 9.3mm TL), the dorsal fin, pelvic fins, and anal fin had ossified. At the 30th DAH(about 14.5mm TL), all skeleton were almost ossified, and the larval’s cranial roof had became the same with the adult’s. At the 35th DAH(about 25.0mm TL), the length of the 2nd dorsal and pelvic fin spines with the total length had become as short as the adult.
The larval development of E. lanceolatus were similar to E. coioides in previous six days(about 2.4~3.3mm TL), but E. lanceolatus’s TL were just longer 7~9% than E. coioides. In the 7th DAH(about 3.5mm TL), the larvae of E. lanceolatus had developed the 2nd dorsal and pelvic fin spines, and that were earlier than E. coioides for 2 days. The larval development of E. lanceolatus in the 12th DAH were similar to E. coioides in the 16th DAH. This study demonstrated that the larval’s skeleton of E. lanceolatus grown faster, so the E. lanceolatus had more difficulties in aquaculture than E. coioides.
| Identifer | oai:union.ndltd.org:TW/098NTOU5086027 |
| Date | January 2010 |
| Creators | Yu-Ting Chen, 陳毓婷 |
| Contributors | Hong-Ming Chen, 陳鴻鳴 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 67 |
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