TABLE 2.
Descriptive statistics of all cockles examined in this study and number of males, females, and indeterminate C. edule from three Irish sites, one French site, and one Portuguese site
| Male | Female | Indeterminate | Total | Sex Ratio | Chi‐square test | Length (mm) | Growth RINGS | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Range | Mean | Range | Mean | |||||||
| Carlingford | 58 | 102 | 69 | 229 | 1:1.7 | χ 2 = 12.1, df = 1, p < 0.001 | 21.0–45.8 | 33.8 | 1–11 | 4.2 |
| Dundalk | 138 | 178 | 163 | 479 | 1:1.3 | χ 2 = 5.06, df = 1, p = 0.02 | 18.1–49.1 | 32.7 | 0–9 | 2.9 |
| Cork | 168 | 177 | 62 | 407 | 1:1.1 | χ 2 = 0.23, df = 1, p = 0.63 | 9.5–49.9 | 32.9 | 0–13 | 3.6 |
| Arcachon | 100 | 113 | 26 | 239 | 1:1.1 | χ 2 = 0.80, df = 1, p = 0.37 | 16.2–40 | 28.6 | 1–7 | 3.7 |
| Aveiro | 123 | 116 | 43 | 282 | 1:0.9 | χ 2 = 0.21, df = 1, p = 0.65 | 7–36 | 25.8 | — | — |
| Total | 587 | 686 | 333 | 1,636 | 1:1.2 | χ 2 = 7.7, df = 1, p = 0.006 | 7–49.9 | 31.1 | 0–13 | 3.4 |