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| Summer | Winter | ||
POM size fraction | Phytoplankton type | Mean δ13C ± SD (‰) | Mean δ15N ± SD (‰) | Mean δ13C ± SD (‰) | Mean δ15N ± SD (‰) |
20 - 63 μm POM | Blooming phytoplankton 20 - 63 μm | −19.03 ± 0.87 (n = 22) | 6.83 ± 0.63 (n = 22) | No bloom | No bloom |
Non - blooming phytoplankton 20 - 63 μm | −21.41 ± 1.48 (n = 10) | 5.59 ± 1.21 (n = 10) | −22.07 ± 1.37 (n = 19) | 6.27 ± 0.97 (n = 19) | |
0.7 - 20 μm POM | Blooming phytoplankton 0.7 - 20 μm | −21.49 ± 0.67 (n = 22) | 6.66 ± 1.29 (n = 22) | No bloom | No bloom |
Non - blooming phytoplankton 0.7 - 20 μm | −22.37 ± 1.10 (n = 10) | 6.34 ± 1.03 (n = 10) | −23.84 ± 0.68 (n = 20) | 6.87 ± 0.91 (n = 20) | |
Oceanic Total POM (>0.7 µm) | Oceanic phytoplankton (37, 48 and 118 km offshore-used for summer and winter) | −25.50 ± 1.38 (n = 3) | 3.83 ± 1.66 (n = 3) |