Table 5 Monthly sex ratio of E. tetradactylum collected in Pattani Bay from January to December 2021

Dry

Jan-21

24

7

-

1:0.29

9.32

0.002

Feb

25

4

3

1:0.16

15.21

 < 0.001

Mar

16

15

2

1:0.93

0.03

0.86

Apr

24

5

2

1:0.21

12.45

 < 0.001

SW monsoon

May

35

13

1

1:0.37

10.08

0.001

Jun

15

12

3

1:0.8

0.33

0.56

Jul

26

20

5

1:0.77

0.78

0.38

Aug

14

36

-

1:2.57

9.68

0.002

Sep

15

13

3

1:0.86

0.14

0.71

NE monsoon

Oct

16

14

-

1:0.87

0.13

0.72

Nov

16

12

2

1:0.75

0.57

0.45

Dec-21

16

15

-

1:0.93

0.32

0.86

Total

242

166

21

1:0.69

14.16*

 < 0.001