| Huang Ying,Ke Caihuan,Feng Danqing,Zhou Shiqiang,Li Fuxue. 2003. Observations on the morphology of embryonic and larval development in Styela canopus Savigny. Acta Oceanologica Sinica, (4):621－628 |
| Observations on the morphology of embryonic and larval development in Styela canopus Savigny |
| Observations on the morphology of embryonic and larval development in Styela canopus Savigny |
| Received:April 06, 2003 Revised:June 09, 2003 |
| DOI： |
| Key words:Styela canopus embryo larvae tadpole larvae ascidian |
| 中文关键词: Styela canopus embryo larvae tadpole larvae ascidian |
| 基金项目:This work was supported by the National Natural Science Foundation of China under contractNo.49976034. |
| Author Name | Affiliation | E-mail | | Huang Ying | Department of Oceanography, Institute of Subtropic Oceanography, Key Laboratory for Marine Environmental Science of the Ministry of Education, Xiamen University, Xiamen 361005, China | | | Ke Caihuan | Department of Oceanography, Institute of Subtropic Oceanography, Key Laboratory for Marine Environmental Science of the Ministry of Education, Xiamen University, Xiamen 361005, China | chke@xmu.edu.cn | | Feng Danqing | Department of Oceanography, Institute of Subtropic Oceanography, Key Laboratory for Marine Environmental Science of the Ministry of Education, Xiamen University, Xiamen 361005, China | | | Zhou Shiqiang | Department of Oceanography, Institute of Subtropic Oceanography, Key Laboratory for Marine Environmental Science of the Ministry of Education, Xiamen University, Xiamen 361005, China | | | Li Fuxue | Department of Oceanography, Institute of Subtropic Oceanography, Key Laboratory for Marine Environmental Science of the Ministry of Education, Xiamen University, Xiamen 361005, China | |
|
| Hits: 842 |
| Download times: 584 |
| Abstract: |
| The morphological characters on different developmental phases of embryo and larva and the schedule of the whole early developmental process in Styela canopus were observed and described.The types of reproduction and early development as well as the morphology of egg and larva in different ascidian species were compared.Styela canopus is oviparous.Its egg,230.4~336.0 μm in diameter,is equipped with extraembryonic cell layers measured 43.2~63.0 μm thick.The early development of Styela canopus is typical urodele development,including fertilization,cleavage,gastrulation,tadpole in membrane,tadpole,initiating metamorphosis and juvenile.The tadpole of Styela canopus,with a length of 0.6~0.9 mm,consists of trunk and tail.There are obvious notochord,ocellus and adhesive papillae in the tadpole.Under the water temperature of(25±0.5)℃ and the salinity of 27.0,the larva was hatched after 9.5~11.0 h since the fertilization. |
| 中文摘要: |
| The morphological characters on different developmental phases of embryo and larva and the schedule of the whole early developmental process in Styela canopus were observed and described.The types of reproduction and early development as well as the morphology of egg and larva in different ascidian species were compared.Styela canopus is oviparous.Its egg,230.4~336.0 μm in diameter,is equipped with extraembryonic cell layers measured 43.2~63.0 μm thick.The early development of Styela canopus is typical urodele development,including fertilization,cleavage,gastrulation,tadpole in membrane,tadpole,initiating metamorphosis and juvenile.The tadpole of Styela canopus,with a length of 0.6~0.9 mm,consists of trunk and tail.There are obvious notochord,ocellus and adhesive papillae in the tadpole.Under the water temperature of(25±0.5)℃ and the salinity of 27.0,the larva was hatched after 9.5~11.0 h since the fertilization. |
|
HTML
View Full Text
View/Add Comment Download reader |
| Close |
|
|
|
