| 青虾产卵周期的观察 |
| |
| 引用本文： | 杞桑.青虾产卵周期的观察[J].水生生物学报,1977,1(2):191-196. |
| |
| 作者姓名： | 杞桑 |
| |
| 作者单位： | 中山大学生物学系动物学教研室 |
| |
| 摘 要： | 珠江下游鱼池产的青虾,产卵期为3月初至11月底。繁殖期间抱卵率出现两次高峰。春季出现在4月下旬至5月中旬;秋季出现在9月中旬。但后者不十分明显。5月以前抱卵雌虾的平均体长为36.4±2.3毫米,6月以后的平均体长为24.1±2.2毫米,t=123,p0.01。将抱卵雌虾分为7个体长组,比较了各体长组的抱卵率,个体较大的雌虾抱卵率总是较高。抱卵量（Y）与体长（X）呈指数关系,回归方程为:Y=6.310e0.1151X,F0.05F=1862.5F0.01。
|
| 关 键 词： | , |
SOME OBSERVATIONS ON THE REPRODUCTIVE CYCLE OF FRESH-WATER PRAWN,MACROBRACHIUM NIPPONENSE (DE HAAN) |
| |
| QI SANG.SOME OBSERVATIONS ON THE REPRODUCTIVE CYCLE OF FRESH-WATER PRAWN,MACROBRACHIUM NIPPONENSE (DE HAAN)[J].Acta Hydrobiologica Sinica,1977,1(2):191-196. |
| |
| Authors: | QI SANG |
| |
| Abstract: | Annual variations in percentage of egg-carrying females were taken as a means of studying the reproductive cycle of the fresh-water prawn,Macrobrachium nipponense.The materials were mainly collected from fish ponds of Kwangtung Province, South China. Results indicate that the reproductive season of this prawn lasts from early dareh to late November. The number of egg-carrying females reaches a peak between avid-April and mid-May, and again in mid-September when the peak is less obvious.
|
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《水生生物学报》浏览原始摘要信息 |
| 点击此处可从《水生生物学报》下载免费的PDF全文 |
|
