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Table 1 Sex ratio and absolute monthly frequencies of crab S. crabricauda by sex in Persian Gulf

From: Growth and population biology of the sand-bubbler crab Scopimera crabricauda Alcock 1900 (Brachyura: Dotillidae) from the Persian Gulf, Iran

Month Male Female Sex ratio Chi test
January (2016) 21 33 1:1.57 (p = 0.10)
February* 43 12 1:0.28 (p = 0.00)
March 22 26 1:1.18 (p = 0.56)
April* 36 14 1:0.39 (p = 0.00)
May* 29 13 1:0.45 (p = 0.01)
June* 28 5 1:0.18 (p = 0.00)
July* 38 10 1:0.26 (p = 0.00)
August* 25 3 1:0.12 (p = 0.00)
September* 21 6 1:0.29 (p = 0.00)
October* 21 7 1:0.33 (p = 0.01)
November* 31 10 1:0.32 (p = 0.00)
December* 30 9 1:0.30 (p = 0.00)
January (2017)* 30 11 1:0.37 (p = 0.00)
Total* 375 159 1:0.42 (p = 0.00)
  1. *Significant differences from the 1:1 ratio (chi-square test, P < 0.05)