Table 3. Results of randomisation tests (N = 105 repetitions) regarding differences in individual swimming distances for the cave (a) and the surface mollies (b).

Significant results are marked with star.

	(a) Cave molly		(b) Surface molly
Compared treatments	Value of test statistic	P-value	Value of test statistic	P-value
G12a - G12b	89.2	0.13	35.1	0.18
G12a - G6	37.8	0.58	99.2	<0.01*
G12b - G6	51.4	0.18	64.1	0.12