Light condition characteristics, and photosynthetic and biochemical properties in Pseudo-nitzschia multistriata cells.

Blue, green and red fluence rates (µmol photon m−2 s−1) measured at light peak and red : blue ratio values for the different light conditions. a*×10–11, absorption coefficient (m2 cell−1); PUR×10–6, photosynthetically usable radiation (µW cell–1); relETRmax×10–6, (maximal relative rate of linear electron transport, nmol e−1 s−1 cell−1), α×10–9 (maximum light use efficiency, nmol e−1 s−1 cell−1(µmol photon m−2 s−1) −1), and Ek (light intensity for reaching relETRmax, µmol photon m−2 s−1); POC, particulate organic carbon (pg cell−1); POC/PON, particulate organic carbon (POC) to particulate organic nitrogen (PON) ratio (pg/pg); Chl a/POC×10–3, Chlorophyll a to POC ratio (pg/pg). Data represent mean and standard deviation. For a* and PUR, n = 3; For relETRmax, α and Ek, n = 6 (mean of the two days light peak measurements); For POC, PON, POC/PON and Chl a/POC, n = 21.