Table 2.

Distance-based linear model (DISTLM) results of the best set of environmental variables that account for variations in HAC-AOA, LAC-AOA, and ratio LAC/HAC for the whole data (n = 349).

	HAC mL−1				LAC mL−1				LAC/HAC
Variables	Prop.	Pseudo-F	p	Coeff	Prop.	Pseudo-F	p	Coeff	Prop.	Pseudo-F	p	Coeff
Latitude	0.122	59.11	0.001	−9.42					0.179	99.17	0.001	12.42
Depth	0.165	68.44	0.001	24.97	0.020	16.06	0.001	8.40	0.014	11.58	0.001	−26.28
Temp	0.009	6.39	0.001	−72.16	0.006	5.29	0.001	−9.33	0.066	40.61	0.001	54.18
Sal	0.012	8.07	0.001	42.25			NS		0.014	12.55	0.001	−35.68
Oxygen	0.029	17.28	0.001	−18.58			NS		0.012	10.68	0.001	24.07
Alkalinity	0.008	5.10	0.001	14.31	0.004	3.13	0.030	8.18			NS
DIC	0.005	3.62	0.001	−85.71	0.289	140.40	0.001	−16.07	0.197	84.94	0.001	53.93
Al (nM)			NS				NS		0.021	14.78	0.001	4.12
Cd (nM)	0.006	4.30	0.010	−26.26	0.005	4.08	0.010	21.01	0.006	5.52	0.004	27.53
Fe (nM)	0.005	3.35	0.025	−1.74	0.009	7.48	0.001	−2.58	0.004	3.40	0.016	0.46
Mn (nM)	0.045	25.55	0.001	10.28	0.062	44.39	0.001	9.90	0.003	2.87	0.024	−5.91
Ni (nM)	0.019	11.92	0.001	29.78			NS		0.020	15.67	0.001	−23.80
Pb (nM)	0.063	33.64	0.001	18.07	0.027	20.55	0.001	3.78	0.010	7.48	0.001	−13.39
Zn (nM)	0.005	3.30	0.001	−4.03			NS				NS
Y (pM)	0.010	7.00	0.001	−16.42	0.007	5.87	0.020	−7.31	0.018	14.75	0.001	−0.66
La (nM)	0.025	15.89	0.001	7.51	0.093	52.10	0.001	6.96	0.005	4.27	0.009	5.46
Fluorescence	0.013	8.25	0.001	0.26	0.079	50.41	0.001	8.79	0.062	42.69	0.001	1.02
PO${}_4^{3-}$ (μM)	0.010	7.04	0.001	70.95			NS		0.005	4.79	0.005	-51.78
Si (μM)			NS		0.007	5.61	0.020	-4.89		9.29	NS
NO${}_2^{-}$ (μM)			NS		0.006	4.66	0.016	4.16	0.013		0.001	-2.40
Cumulative	0.550				0.614				0.648

Pseudo-F and p-values were obtained by permutations (n = 999). Coeff: Coefficient for linear combinations of variables in the formation of dbRDA axis 1. As the basis of analyses, Bray-Curtis similarities were used for response variables. Oxygen, oxygen concentration (μM); DIC, dissolved inorganic carbon (μM).