Table 1.

Vertical nutrient concentration gradients below the mixed layer and estimated vertical nutrient fluxes along the transect at 27°N in the Florida Straits. A range of flux estimates were calculated from the range of eddy diffusivities (k _v) of 0.02–4.2 cm²s⁻¹ measured by Winkel et al.⁴³ in the Florida Straits.

station	longitude (°E)	bottom depth (m)	Vertical Gradient (μM m−1)			Nutrient Flux (mmol m−2 d−1)
			NO3	PO4	Si(OH)4	NO3	PO4	Si(OH)4
22	80.003	42	2.307	0.172	1.254	0.40–83.7	0.030–6.24	0.22–45.5
23	79.986	67	1.228	0.092	0.584	0.21–44.6	0.015–3.33	0.10–21.2
24	79.931	159	0.956	0.061	0.406	0.17–34.7	0.010–2.19	0.07–14.7
25	79.865	276	0.525	0.036	0.239	0.09–19.1	0.006–1.31	0.04–8.7
26	79.781	404	0.243	0.017	0.079	0.04–8.8	0.003–0.61	0.01–2.9
27	79.686	554	0.154	0.007	0.019	0.03–5.6	0.001–0.27	0.003–0.69
28	79.620	653	0.096	0.007	0.006	0.02–3.5	0.001–0.25	0.001–0.20
29	79.499	780	0.106	0.004	0.002	0.02–3.8	0.001–0.14	0.001–0.07
30	79.383	700	0.072	0.004	0.001	0.01–2.6	0.001–0.15	0.001–0.04
31	79.282	628	0.071	0.004	0.000	0.01–2.6	0.001–0.16	0.001–0.18
32	79.200	509	0.011	0.001	0.000	0.002–0.4	0.0002–0.05	0.000
33	79.174	431	0.029	0.001	0.000	0.005–1.0	0.0001–0.03	0.000