厦门文昌鱼人工繁殖和幼虫发育及其变态的研究
Study on the artificial breeding,larval development and metamorphosis of Xiamen amphioxus,Branchiostoma belcheri
-
摘要: 用组织学和胚胎学方法对厦门国家级自然保护区文昌鱼的生殖季节、胚胎发育和幼虫培育进行详细研究,结果表明,自然保护区文昌鱼生殖季节可分为两个繁殖时期,从6月初开始至7月初为繁殖高峰期,8和9月为繁殖小产期.观察人工繁殖得出,文昌鱼(Branchiostoma belcheri)产卵时间在傍晚19:00前后,可以观察到雌、雄文昌鱼的产卵和排精行为:雄性文昌鱼先离开沙,并跃出水面快速游动和排精,接着雌鱼也跃出水面,所有的卵通过破裂的性腺壁进入到围鳃腔并通过围鳃孔到水中受精,受精率在98.5%以上,还观察了文昌鱼幼虫发育并变态为幼鱼(长度为1.05～13.5mm)的全过程.Abstract: The reproductive season,embryo development and larval culture of amphioxus in the National Natural Protective Area of Xiamen were studied in detail by the methods of histology and embryology.The results indicate that the reproductive season of amphioxus in the National Natural Protective Area of Xiamen maybe divided into two breeding stages.One is the breeding peak stage which starts from June to the end of July,and another is small breeding stage which is in August and September.The observation on the artificial breeding suggests that amphioxus spawned initially at about 07:00 PM,and the spawning and spermiation behaviours in female and male amphioxus could be seen.The male amphioxus left firstly the sand,rushed up to the water surface,and swam as well as released sperms.Then,the fmale swam to the water surface,and all eggs passed out from broken wall of ovary into the at rial cavity and through the atriopore to the water.The fertility rate is about 98.5%.At the same time,the whole process of the development from larvae to young fish is observed with metamorphosis(length:1.05~13.50 mm).
-
方永强.文昌鱼在生殖内分泌进化中的地位[J].科学通报,1998,43(3):225-232. KOZMIK Z, HOLLAND L Z, SCHUBERT M, et al. Characterization of amphioxus, an evolutionarily conserved marker for chordate ventral mesoderm[J]. Genesis,2002, 29(8):172-179. 方永强.文昌鱼生态习性及其资源保护[J].动物学杂志,1987,22(2):41-45. 方永强,吕小梅,翁幼竹,等.厦门文昌鱼资源保护现状及其可持续利用[J].沈阳师范大学学报(自然科学版)(中国科协2003年学术年会专辑),21:31-35. 方永强,齐襄,梁萍,等.厦门文昌鱼性腺发育的周年变化[J].海洋学报,1990,12(5):631-637. 金德祥.文昌鱼[M].福州:福建人民出版社,1957. WU Xian-han, ZHANG Shi-cui, WANG Yong-yuan, et al. Laboratory observation on spawning, fecundity and larval development of amphioxus(Branchiostoma belcheri Tsingtaunese) [J]. Chin J Oceanol Limnol, 1994, 12(4):289-294. 吴贤汉,张士璀,王永元,等.青岛文昌鱼的生活史——年龄、生长和死亡研究[J].海洋与湖沼,1995,26(2):175-178. 林加涵,方永强,刘建,等.不同水温对文昌鱼性腺发育的影响[J].台湾海峡,1996,15(2):170-173. 金德祥.厦门文昌鱼早期胚胎发育的观察[J].动物学杂志,1964,(4):169-172. 方永强,汪敏.菲律宾蛤生殖机制的研究.Ⅰ.氨海水的生理作用及排放激素的发现[J].海洋学报,1983,5(2):236-243. 童第周,吴尚勤,叶毓芬.文昌鱼卵子分裂球的发育能力的研究[J].实验生物学报,1958,6(1):57-90. 方永强,齐襄,洪桂英.促性腺激素释放激素类似物诱导文昌鱼产卵的初步研究[J].台湾海峡,1989,8(3):278-280. 杜琦,程兆第.文昌鱼人工育苗初探[J].福建水产,1990,(3):16-22. KUBOKAWA K, MIZUTA T, MORISAWA M, et al. Gonadal state of wild amphioxus populations and spawning success in captive conditions during the breeding period in Japan[J]. Zoological Science, 2003, 20(7):889-895. -
点击查看大图
计量
- 文章访问数: 788
- HTML全文浏览量: 14
- PDF下载量: 1513
- 被引次数: 0
下载:
