Table 3. ANCOVA statistics for oxygen consumption rates (MO₂) and critical oxygen levels (PO_{2 crit}) of fish exposed to different temperatures (21 and 27 °C) and exposed or not to jellyfish.

Factor	MO2			PO2 crit.
	df	F value	P value	df	F value	P value
Time	1	1.357	0.246	1	2.349	0.128
Jellyfish	1	19.231	2.46 e−05	1	46.172	4.13 e−10
Temperature	1	53.849	2.56 e−11	1	0.173	0.678
Jelly. x Temp.	1	7.230	0.008	1	3.156	0.078

P < 0.05 was considered significant.