摘要
经测量和数理统计分析,确定池养条件下幼螯(中华绒螯蟹幼蟹,下同)背甲长与年龄呈直线关系,体重与年龄为幂函数关系,并计算出它们相应的回归方程式。研究结果表明,在不同饲养条件下,幼蟹生长率略有差异,并揭示出幼蟹个体生长存在着显著的差异性。在营养和溶氧相似的条件下,动蟹在适温范围内的生长与水温呈正相关。根据对185只不同时期幼蟹的测量,计算出幼蟹背甲长对体重的关系式为W=0.4209L^(3.1150)。
The present paper deals with the growth characteristics of the juve-nile of woolly handed crab (Eriocheir sinensis) cultivated in ponds. The relationshipof length (L)/age (T) falls on a straight line, but that of weight (W)/age (T) isexponential. The regression equation of length or weight and age was determinedthrough calculation. The results obtained showed that there is a little differenceabout growth rate of the juvenile crab under different culture conditions, but obvi-ously there is a significant difference in individual growth. Either indoor or outdoorunder same food ration and dissolved oxygen, the relationship of the juvenile crabgrowth with water temperature is a positive correlation between 16.5℃ and 32.0℃.The general equation of the juvenile crab, based on the measurement of 185 indivi-duals, can be expressed as W=0.4209L^(3.1156).
出处
《水产学报》
CAS
CSCD
北大核心
1989年第1期17-23,共7页
Journal of Fisheries of China
关键词
池塘养
中华绒螯蟹
生长特性
蟹
culturing in pond
juvenile of Eriocheir sinensis
growth characteristics
