中文摘要：

在水温15.6℃~31.0℃、盐度19.0~30.2,单体筐养条件下进行三疣梭子蟹人工养殖,对其生长过程中形态学变化进行观察测量,旨在了解单体筐养条件下梭子蟹蜕壳与生长规律。试验期间共观察到三疣梭子蟹11次蜕壳,蜕壳周期时间随期数的增加而逐渐拉长。平均体重由Ⅰ期的（12±1）mg增长至Ⅻ期的（205.23±25.69）g。体重的相对增重率在仔蟹阶段（Ⅰ~Ⅳ期）迅速增加,Ⅳ期时生长最快,增重率达到337.50%,幼蟹阶段（Ⅴ~Ⅶ期）维持在194.68%~199.64%之间,成蟹阶段（Ⅷ期以后）随期数增加而缓慢减小。各蜕壳间期甲宽（CW）、体长（BL）与体重（BW）呈指数关系,分别为W=1.18×10~（-4）×L~（2.996）（R~2=1.000）和W=4.05×10~（-4）×L~（2.998）（R~2=1.000）。此外,建立了通过体重判断期龄的判定函数,总判对率达到91.76%。以上结果可为三疣梭子蟹生物学研究及养殖生产提供参考依据。

英文摘要：

The rules of molting and growth of Portunus trituberculatus were observed in this study. The crabs were cultured in single individual basket at temperature 15. 6℃- 31. 0℃,salinity of 19. 0- 30. 2. During the growing douration,eleven molting phenomena were observed,the interval of molting increased with the growth. Meanwhile,the average body weight gradually increased from（ 12 ±1） mg to（ 205. 23 ± 25. 69） g. The relative growth rate of body weight increased rapidly at the period of crablet（ Ⅰ ~ Ⅳ）,which ould reach up to 337. 50% at the period Ⅳ,but maintained between 194. 68% and 199. 64% during the juvenile crab period（ Ⅴ ~Ⅶ） and decreased slowly after Ⅶ period. The correlations between carapace width（ CW）,body length（ BL） and body weight（ BW）in each period were exponential,W = 1. 18 × 10~（-4）× L~（2. 996）（ R~2= 1. 000） was added to describe the correlation between CW（ CW = L）and BW（ BW = W）. W = 4. 05 × 10~（-4）× L~（2. 998）（ R~2= 1. 000） was added to describe the correlation between BL（ BL = L） and BW（ BW = W）. Moreover,a function was established to infer the growth period from body weight with an accuracy of 91. 76%. These results can provide some references for the biology studies and culture of P. trituberculatus.