Table 4.

Correlations between model residuals (model minus measurements) in the fraction of total chlorophyll by combined pico- and nano-phytoplankton (F_p,n) and picophytoplankton (F_p, cells <2 μm) and other variables collected in the dataset.

Variable	Fp, n			Fp
	r	p	N	r	p	N
Total chlorophyll (C)	0.00	0.962	136	−0.03	0.740	136
Temperature	0.34	0.000	134	0.26	0.002	134
Salinity	0.23	0.008	133	−0.07	0.398	133
DOC	0.16	0.073	132	0.03	0.737	132
TDN	0.16	0.072	133	0.17	0.045	133
Silicate	0.05	0.590	122	0.18	0.046	122
Nitrite	0.12	0.193	122	0.26	0.004	122
Nitrate	0.06	0.533	122	0.15	0.090	122
Phosphate	−0.09	0.322	121	0.07	0.464	121
Picoeukaryotes cells *	–0.18	0.040	131	–0.20	0.022	131
Synechococcus cells *	−0.04	0.638	131	−0.13	0.127	131
Prochlorococcus cells *	−0.26	0.187	27	−0.25	0.212	27

Bold indicates significant correlations (p < 0.05).

^*Cell numbers were log₁₀ transformed when running the correlations.