Table 1. Sex ratio with shell height of mussel Mytilus coruscus

Shell height (mm) Number Sex ratio (F:M) Female (%) Male (%) Chi-square p-value Dominant sex
Total Female Male
20.1–30.0 35 14 21 1:1.50 40.00 60.00 1.40 0.310
30.1–40.0 35 16 19 1:1.19 45.71 54.29 0.26 0.737
40.1–50.0 41 19 22 1:1.16 46.34 53.66 0.22 0.759
50.1–60.0 57 30 27 1:0.90 52.63 47.37 0.16 0.795
60.1–70.0 35 23 12 1:0.52 65.71 34.29 3.46 0.084
70.1–80.0 16 6 10 1:1.67 37.50 62.50 1.00 0.461
80.1–90.0 33 21 12 1:0.57 63.64 36.36 2.46 0.158
90.1–100.0 36 24 12 1:0.50 66.67 33.33 4.00 0.061
100.1–110.0 30 18 12 1:0.67 60.00 40.00 1.20 0.365
110.1–120.0 32 28 4 1:0.14 87.50 12.50 18.00 <0.001
120.1–130.0 13 12 1 1:0.08 92.31 7.69 9.31 0.003
130.1≤ 14 12 2 1:0.17 85.71 14.29 7.14 0.012
Total 377 223 154 1:0.69 59.15 40.85 12.63 <0.001