TABLE 2.

Characteristics of waters sampled in the Mid-Atlantic Bight in August 2003 and in the central North Pacific in February 2004^a

Water sampled	Geographic location	Photic zoneb (m)	PO4c (μmol liter−1)	NO3 + NO2c (μmol liter−1)	Bacterial productivity (mg C m−2 day−1)	Primary productivity (mg C m−2 day−1)	Chl ag (μg−1) liter
Mid-Atlantic Bight
Gulf stream	35°55′N, 73°58′W	49	0.08-0.39	0.18-0.73	73 (4)	2,266	0.13-0.25
Gulf stream	36°00′N, 72°60′W	65	0.07-0.17	0.41-2.7	38 (2)	900	0.04-0.11
Coast	36°49′N, 73°36′W	65	0.07-0.81	0.27-14.1	66 (16)	279	0.04-0.88
Shelf break	38°00′N, 74°26′W	35	0.37-0.76	1.48-8.0	96 (4)	259	0.23-0.83
Central North Pacific
N of Oahud	22°45′N, 157°60′W	117e	0.11-0.11	0.17-0.52	ND	466e	0.35-1.56
NW of Oahu	22°27′N, 158°5′W	ND	ND	ND	ND	ND	ND
W of Oahu	22°10′N, 158°10′W	ND	0.15-0.30	0.23-2.62	ND	ND	0.46-1.8
SW of Oahu	21°53′N, 158°14′W	109f	0.12-0.12	0.20-0.15	ND	ND	0.53-2.48
SW of Oahu	21°21′N, 158°16′W	100f	0.15-0.23	0.38-1.75	ND	ND	0.37-1.3

^aAbbreviations: N, north; NW, northwest; W, west; SW, southwest; ND, not determined. Standard errors are given in parentheses.

^bDepth to which 1% of surface irradiance reached.

^cRange of concentrations between the surface and the bottom of the photic zone.

^dHawaii ocean time-series station Aloha (http://hahana.soest.hawaii.edu/hot/hot.html).

^eHawaii ocean time-series, 24 to 28 February 2003 (http://hahana.soest.hawaii.edu/hot/hot-dogs/interface.html).

^fHawaii ocean time-series, 23 to 26 February 2004.

^gRange of concentrations between the surface and subsurface maximum Chl a concentrations.