摘要
本文以菲律宾蛤仔的受精卵孵化、蛤苗培育至成贝生长等阶段的发育生长速度为主要研究对象。文中系统地记述了菲律宾蛤仔的胚胎发育、浮游幼虫培育、幼苗至成贝诸阶段的生长发育速度、生长特点以及亲蛤的繁殖能力。经1978-81年三年暂养试验表明,9月底将亲蛤暂养于池塘内并适当地控制生态条件,能使亲蛤的性腺保持三个月不排放精卵,从而可延长繁殖期,做到有计划地分批催产和育苗。1至3龄亲蛤都能繁殖后代,但以3龄亲给为好。
The development rates of the clams at various stages fromembryoes, planktonic larvae and spats to adult as well as the growth features and the development of gonad have been studied in this experiment. Fertilized eggs wereobtained from artificial induced breeding of Ruditapes philippinarum in laboratory,spats were collected in the sea area each year,and biological measurements and histolo-gical study of gonad were conducted It was found by 3-year temporal culturing expe-riments(1978-1981) that gonads of parent clams could remain unproducing withinthree months by temporal culturing in pools. At the end of September under cruciallycontrolled ecological conditions, this prolonging of time makes convenient to theinduced breeding and spating in batches. Experiment indicated that all parent clamsfrom 1-year to 3-year could propagate, but the 3-year clams were better.
出处
《水产学报》
CAS
1988年第1期1-11,共11页
Journal of Fisheries of China
关键词
菲律宾蛤仔
生长发育
繁殖
性别
性比
calm(Ruditapes Philippinarum)
growth
development
propagation
