Table 2.

Summary of statistical analyses of activity using permutation tests (post hoc test)

Activity	Temperature (°C)	4	6	8	10	12
Total activity	4	—	Z = 2.81	Z = −3.33	Z = −2.70	—
			P = 0.004	P < 0.001	P = 0.007
	6		—	Z = −3.90	Z = −3.68	—
				P < 0.001	P < 0.001
	8			—	—	Z = 2.41
						P = 0.01
	10				—	Z = 2.02
						P = 0.03
	12					—
Fast swimming	4	—	—	—	—	Z = 2.75
						P = 0.005
	6		—	—	—	Z = 3.01
						P = 0.002
	8			—	—	Z = 2.92
						P = 0.003
	10				—	Z = 2.84
						P = 0.004
	12					—
Slow swimming	4	—	Z = 3.47	Z = −3.25	—	—
			P < 0.001	P = 0.001
	6		—	Z = −3.97	Z = −3.82	Z = −2.55
				P < 0.001	P < 0.001	P = 0.01
	8			—	Z = 2.55	—
					P = 0.01
	10				—	—
	12					—
Static swimming	4	—	Z = −2.95	—	Z = −3.35	—
			P = 0.003		P < 0.001
	6		—	—	—	—
	8			—	Z = 2.84	—
					P = 0.004
	10				—	—
	12					—