Table 2.

Phytoplankton growth (μ) and microzooplankton grazing (g) rates (d⁻¹) for total chlorophyll a (Chla), picoeukaryotes (PE), Synechococcus (Syn) and Prochlorococcus (Proch) from seawater dilution experiments at surface (5 m), mixed layer (20 m) and chlorophyll maximum (CM).

Station	Depth (m)	Growth (d−1)				Grazing (d−1)
		μChla	μPE	μSyn	μProch	gChla	gPE	gSyn	gProch
1	5	0.155 ± 0.00	0.073 ± 0.03	0.013 ± 0.01	0.031 ± 0.000	0.177 ± 0.034	0.186 ± 0.014	0.298 ± 0.123	0.114 ± 0.043
2	5	0.119 ± 0.048	0.047 ± 0.027	0.073 ± 0.006	0.071 ± 0.008	0.098 ± 0.005	0.071 ± 0.024	0.265 ± 0.02	0.001 ± 0.024
	20	0.666 ±0.025	0.069 ± 0.03	0.783 ± 0.039	0.001	0.682 ± 0.009	0.086 ± 0.005	0.705 ± 0.027	0.055 ± 0.01
	135 (CM)	0.285 ± 0.041	0.048 ± 0.011	0.001	0.024 ± 0.013	0.179 ± 0.029	0.134 ± 0.008	0	0.047 ± 0.004
3	5	0.502 ± 0.015	0.05 ± 0.031	0.106 ± 0.023	0.952 ± 0.047	0.421 ± 0.013	0.046 ± 0.022	0.18 ± 0.022	0.83 ± 0.031
	20	1.26 ± 0.013	0.318 ± 0.052	0.259 ± 0.059	0.673 ± 0.065	0.769 ± 0.007	0.325 ± 0.006	0.247 ± 0.019	0.718 ± 0.027
	95 (CM)	0.229 ± 0.021	0.252 ± 0.055	0.05 ± 0.017	0.073 ± 0.01	0.167 ± 0.034	0.197 ± 0.019	0.12 ± 0.007	0.057 ± 0.014
4	5	0.400 ± 0.021	0.642 ± 0.104	0.221 ± 0.048	0.074 ± 0.017	0.023 ± 0.051	0.547 ± 0.033	0.249 ± 0.016	0.148 ± 0.022
	20	0.706 ± 0.077	0.045 ± 0.018	0.064 ± 0.005	0.001	0.647 ± 0.021	0.071 ± 0.045	0.081 ± 0.01	0
	65 (CM)	0.077 ± 0.008	0.495 ± 0.05	0.113 ± 0.024	0.527 ± 0.027	0.114 ± 0.027	0.416 ± 0.039	0.092 ± 0.01	0.515 ± 0.01
5	5	0.226 ± 0.048	0.032 ± 0.007	0.396 ± 0.099	0.039 ± 0.023	0	0.058 ± 0.019	0.322 ± 0.041	0.093 ± 0.022
	20	0.061 ± 0.010	0.019 ± 0.009	0.535 ± 0.037	0.001	0.095 ± 0.003	0.062 ± 0.014	0.483 ± 0.012	0.582 ± 0.085
	65 (CM)	0.182 ± 0.018	0.341 ± 0.04	0.397 ± 0.043	0.077 ± 0.012	0.148 ± 0.009	0.303 ± 0.01	0.345 ± 0.027	0.077 ± 0.011
6	5	0.051 ± 0.024	0.642 ± 0.007	0.653 ± 0.067	0.063 ± 0.022	0.081 ± 0.006	0.283 ± 0.009	0.331 ± 0.095	0.093 ± 0.007
	20	0.187 ± 0.024	0.568 ± 0.043	0.408 ± 0.029	0.001	0.161 ± 0.020	0.232 ± 0.027	0.056 ± 0.36	0.544 ± 0.037
	46 (CM)	0.241 ± 0.018	0.225 ± 0.018	0.129 ± 0.008	0.237 ± 0.014	0.205 ± 0.005	0.022 ± 0.023	0.113 ± 0.007	0.249 ± 0.012
7	5	0.408 ± 0.036	0.027 ± 0.014	0.81 ± 0.093	0.409 ± 0.115	0.162 ± 0.015	0	0.183 ± 0.038	0.392 ± 0.011
	20	0.228 ± 0.056	0.593 ± 0.044	0.549 ± 0.025	0.09 ± 0.023	0.153 ± 0.006	0.538 ± 0.014	0.449 ± 0.032	0.593 ± 0.025
	41 (CM)	0.256 ± 0.011	0.169 ± 0.034	0.334 ± 0.049	0.132 ± 0.009	0.181 ± 0.020	0.221 ± 0.015	0.306 ± 0.024	0.178 ± 0.007
8	5	0.426 ± 0.038	0.475 ± 0.079	1.016 ± 0.111	0.24 ± 0.027	0.316 ± 0.017	0.239 ± 0.014	0.658 ± 0.063	0.309 ± 0.011
	29	0.112 ± 0.026	0.47 ± 0.015	0.181 ± 0.047	0.073 ± 0.016	0.144 ± 0.026	0.224 ± 0.075	0.134 ± 0.019	0.493 ± 0.013
	49 (CM)	0.142 ± 0.026	0.265 ± 0.022	0.336 ± 0.029	0.003 ± 0.001	0 ± 0.037	0.294 ± 0.004	0.242 ± 0.025	0.096 ± 0.013
9	5	0.356 ± 0.052	0.939 ± 0.007	1.238 ± 0.037		0.082 ± 0.067	0.621 ± 0.032	0.56 ± 0.022
	30 (CM)	0.198 ± 0.016	0.313 ± 0.049	0.11 ± 0.031		0.209 ± 0.010	0.29 ± 0.01	0.098 ± 0.012
10	5	0.159 ± 0.006	0.609 ± 0.023	0.711 ± 0.066		0.040 ± 0.011	0.398 ± 0.036	0.426 ± 0.041
	20	0.170 ± 0.013	0.737 ± 0.054	0.868 ± 0.064		0.110 ± 0.021	0.68 ± 0.026	0.725 ± 0.011
11	5	0.273 ± 0.008	0.329 ± 0.047	0.523 ± 0.016		0.250 ± 0.007	0.298 ± 0.044	0.182 ± 0.021
	15 (CM)	0.076 ± 0.026	0.315 ± 0.047	0.516 ± 0.013		0	0.311 ± 0.005	0.497 ± 0.01
12	5	0.442 ± 0.080	0.043 ± 0.009	0.173 ± 0.025		0	0.079 ± 0.019	0.115 ± 0.029

Negative growth and grazing rates were converted to 0.001 and 0, respectively. Note Proch were not present at stations 9 to 12. Values (mean ± SE).