Nor did MRPP results suggest any significant
differences in community composition between
crayfish and non-crayfish sites (P€aij€anne: A = 0.007,
P = 0.12; Saimaa: A = 0.013, P = 0.07). In both lakes,
shore slope (P€aij€anne r = 0.71, Saimaa r = 0.45) and
relative exposure (P€aij€anne r = 0.54; Saimaa r = 0.59)
correlated with NMS-solution axes (Fig. 4c,d).