A potential nitrogen sink discovered in the oxygenated Chukchi Shelf waters of the Arctic

Table 2 ¹⁴C-based volumetric primary productivity of the stations over the Chukchi Shelf

Station	Longitude (°W)	Latitude (°N)	Sampled depth (m)	Primary production (mg C m⁻³ h⁻¹)
R01	169.00	66.72	0	8.3
			6	11.3
			10	14.2
			22	3.6
			33	2.9
			43	0.5
CC06	167.13	68.23	0	5.6
			8	6.8
			12	5.8
			25	2.7
			37	1.1
			49	0.1
R03	168.87	68.60	0	1.0
			10	1.3
			18	1.9
			27	1.1
			41	0.1
			54	0.0

Data listed here is cited from Le et al. [39]. The three stations below are plotted in Fig. 1 (denoted as open triangles) and R01 and R02, R03 and R04, and CC06 and CC07 are paired with each other for a comparison of denitrifying activities and algal productivities. The three stations that we choose to represent the primary productions depend on the measured chlorophyll a (chl-a) concentrations, namely, R01 and R02, R03 and R04, and CC06 and CC07, have similar chl-a content at each depth (data shown in Le et al. [39])

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