Relationship between body weight and fecundity: For stage 1 of embryonic development, linear regression was F = 219.3 BW+63038 (R2 = 0.091) (Fig. 7). Linear regression for stage 2 was F = 735.7 BW+2184 (R2 = 0.709) (Fig. 8) while stage 3 was F = 814.0 BW+11758 (R2 = 0.621) (Fig. 9). The result showed that fecundity increasing as BW increased.
Ovarian development stage: A total of 12 female crabs were dissected to observe the ovarian development through histological assessment. CW range from 9.64 to 13.05 cm and BW range from 83 to 200 g of crab samples were used to determine the ovarian development. The progress of ovarian development was classified into four stages based on the presence of the most advanced oocytes with the histological observation (Table 3, Fig. 10).