Table 1. Environmental parameters and cellular abundances from KByT.

	Coastal				Transition				Offshore
	Summer	Fall	Winter	Spring	Summer	Fall	Winter	Spring	Summer	Fall	Winter	Spring
	(n = 24)	(n = 24)	(n = 36)	(n = 36)	(n = 8)	(n = 8)	(n = 12)	(n = 12)	(n = 8)	(n = 8)	(n = 12)	(n = 12)
Seawater temp. (°C)	27.6 ± 0.6	26.5 ± 1.3	24.0 ± 0.4	26.5 ± 1.5	27.0 ± 0.6	26.3 ± 0.9	24.0 ± 0.5	25.4 ± 1.0	26.7 ± 0.5	26.2 ± 0.8	23.9 ± 0.6	25.2 ± 0.8
pH	7.9 ± 0.1	7.9 ± 0.2	8.0 ± 0.1	7.9 ± 0.2	8.0 ± 0.1	7.9 ± 0.3	8.0 ± 0.1	7.8 ± 0.2	8.1 ± 0.2	8.0 ± 0.2	8.1 ± 0.1	7.9 ± 0.1
Salinity	34.0 ± 1.2	34.4 ± 0.6	34.2 ± 0.6	35.1 ± 1.3	34.4 ± 0.8	35.2 ± 0.5	34.9 ± 0.5	35.5 ± 1.2	34.4 ± 0.8	35.3 ± 0.7	35.0 ± 0.4	35.6 ± 1.2
Chlorophyll a (µg L−1)	1.6 ± 0.4	1.5 ± 0.4	1.7 ± 0.5	1.5 ± 0.4	0.9 ± 0.5	0.7 ± 0.3	0.8 ± 0.3	0.9 ± 0.6	0.5 ± 0.3	0.8 ± 0.7	0.6 ± 0.3	0.8 ± 0.8
Heterotrophic bacteria (×106 cells mL−1)	1.4 ± 0.5	1.1 ± 0.5	1.3 ± 0.4	1.4 ± 0.4	0.8 ± 0.2	0.7 ± 0.4	0.7 ± 0.2	0.9 ± 0.2	0.7 ± 0.2	0.6 ± 0.2	0.7 ± 0.2	0.8 ± 0.2
Synechococcus (×104 cells mL−1)	26.6 ± 12.7	16.8 ± 13.5	16.5 ± 12.8	25.6 ± 9.7	4.0 ± 7.8	6.2 ± 7.8	1.8 ± 1.2	6.8 ± 4.5	4.3 ± 3.7	4.3 ± 3.7	1.6 ± 2.0	5.3 ± 4.0
Eukaryotic picophytoplankton (×104 cells mL−1)	2.9 ± 1.2	2.8 ± 1.2	2.9 ± 2.4	3.2 ± 0.9	0.9 ± 0.4	1.3 ± 1.0	0.9 ± 0.6	1.1 ± 0.6	0.6 ± 0.5	0.7 ± 0.1	0.9 ± 0.9	0.8 ± 0.4
Prochlorococcus (×104 cells mL−1)	0.1 ± 0.7	0.7 ± 0.1	0.0 ± 0.0	0.0 ± 0.0	2.8 ± 3.3	2.8 ± 2.4	1.8 ± 1.5	2.0 ± 1.4	6.9 ± 2.7	5.7 ± 3.1	6.9 ± 0.2	5.5 ± 1.9

Note:

Samples are averaged (mean ± s.d.) over environmental category and season.