Table 2:

The effect of high CO₂ and maximal swimming on body metrics, blood, and tissue variables of spiny damselfish

			Mass (g)	Standard length (mm)	Condition factor (K)	[Hb] (g 100 ml−1)	[Hb] (mM)	[Lactate] (mM)	[Glucose] (mM)	Muscle water (%)
Control	Rest	Mean	10.60	62.43	0.00424	6.50	1.03	1.33	2.87	74.25
		SEM	0.94	1.57	0.00008	0.30	0.05	0.30	0.40	0.41
		n	13	13	13	10	10	9	9	13
	Post-swimming	Mean	11.68	64.74	0.00445	7.20	1.14	3.27*	3.73	75.89*
		SEM	0.71	1.26	0.00011	0.31	0.05	1.20	0.49	0.28
		n	8	7	7	5	7	3	6	7
High CO2	Rest	Mean	13.20	65.35	0.00427	6.80	1.08	1.58	1.69	73.46
		SEM	0.37	2.69	0.00019	0.12	0.02	0.17	0.36	0.38
		n	10	10	10	7	5	9	9	10
	Post-swimming	Mean	10.17	61.59	0.00425	6.60	0.92	2.87*	2.67	75.00*
		SEM	1.02	2.17	0.00015	0.44	0.14	0.67	0.42	0.82
		n	8	8	8	8	8	7	7	8
Significance			n.s.	n.s.	n.s.	n.s.	n.s.	P = 0.045	n.s.	P < 0.001

Abbreviations: [Hb], haemoglobin concentration; n.s., non-significant. Asterisks demarcate significant differences between rest and post-swimming values within a given parameter; there were no effects of CO₂ treatment or interaction between CO₂ treatment and exercise (two-way ANOVA).