Table 5 The effect of latitude on conchological indices in the two morphotypes studied
Index | Intercept | Latitude | pvalue | F | R 2 |
|---|---|---|---|---|---|
L. fragilis morphotype | |||||
 SW/SH | −1.11 | 0.06 | 0.000 | 24.28 | 0.49 |
 SpH/SW | 1.40 | −0.03 | 0.000 | 30.1 | 0.55 |
 BWH/SW | 0.20 | 0.02 | 0.000 | 25.67 | 0.51 |
 AW/AH | −0.885 | −0.06 | 0.000 | 60.94 | 0.71 |
L. stagnalis morphotype | |||||
 SW/SH | −0.98 | 0.06 | 0.27 | 1.36 | 0.06 |
 SpH/SW | 0.207 | −0.01 | 0.053 | 3.154 | 0.13 |
 BWH/SW | 0.290 | 0.02 | 0.37 | 1.03 | 0.05 |
 AW/AH | 2.864 | −0.09 | 0.012 | 4.98 | 0.20 |