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Table 3.
Simple linear regressions for phytoplankton photosynthesis parameters in surface waters of the Amundsen Sea Polynyaa

a Abbreviations (and units): Fv/Fm = maximum photochemical efficiency of photosystem II (no units), Chl a = Chlorophyll a (µg L−1), depth-integrated Chl a (mg m−2), σPSII = functional absorption cross section (Å photon−1), P*max = maximum rate of photosynthesis (g C g−1 Chl a h−1), α* = initial slope of photosynthesis versus irradiance curve (g C g−1 Chl a h−1 [µmol photons m−2 s−1]−1), DFe = dissolved iron (nmol L−1), PFe = particulate iron (nmol L−1), WCP = water column productivity (g C m−2 d−1), MLD = mixed layer depth (m), EUML= mean daily PAR in the upper mixed layer (mol photons m−2 day−1).

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