摘要
在不同的实验温度下测定了武汉东湖10种体外带卵轮虫和4种非带卵轮虫卵及其胚后发育时间。结果表明,在一定温度范围内卵的发育时间随温度升高而缩短,它们间的关系可用曲线回归方程1nD=a+blnT+c(1nT)~2描述。在相同的温度培养下,体外带卵轮虫卵的发育时间一般比非带卵轮虫的时间长。初步观察结果表明,胚后发育时间亦随温度升高而缩短。实验结果表明,卵的发育时间约占世代发育时间的31％(24—41％);胚后发育时间约占69％(59—76％)。本文还同其他研究者所获得的卵的发育时间与温度间的回归方程式、胚后发育时间等作了比较,并对其所产生差异的原因进行了讨论。
The egg and post-embryomic development time were determined for the some rotifers in Lake Donghu. Ten ovigerous females and four non-ovigerous females of the following species were successfully cultured: Brachianus calyciflorus, B. angularis, B. quadridentus, B. caudatus, Keratella cochlearis, K. quadrata, K. valga, Pompholyx sulcata, Polyanhra trigla, Filinia maior, Euchlanis dilatata, Synchaeta, stylata Epiphanes senta, and Asplanchna brightwelli. The curvilinear logarithmic equation: In D - a+b In T+c (In T)2 is fitted to the development times of eggs.The development time of ovigerous females was longer than that of non-ovigerous females at same temperature. The post-embryonic develpment time decreased also with increasing temperature. In all the experiments of the present paper, the egg development time comprises 31% (24-41%) for generation, and 69% (59-76%) for post-embryonic development time.The results are compared with those found in the literature, and the differences are discussed.
出处
《海洋与湖沼》
CAS
CSCD
北大核心
1989年第2期184-191,共8页
Oceanologia Et Limnologia Sinica
