Fig. 7.3 Mean spring (May) depth-integrated (0–100 m) nitrate concentration (mmolÁm
À2
) over
the period 1999–2016: (a) in the Mediterranean basin, (b) in the Alboran Sea and (c) standard
deviation. Generated using E.U. Copernicus Marine Service Information. (Product:
MEDSEA_REANALYSIS_BIO_006_008) (Teruzzi et al. 2016) (https://doi.org/10.25423/
MEDSEA_REANALYSIS_BIO_006_008)
7 The Biogeochemical Context of Marine Planktonic Ecosystems
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