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Mean DIC uptake during photosynthesis in high light as a function of mean DIC concentration in the water for N. commune, N. pruniforme and N. zetterstedtii. Sources: N. commune (K. Sand-Jensen, unpubl. data); N. pruniforme (Raun et al., 2009); N. zetterstedtii (Sand-Jensen et al., 2009b).
