Limnol. Oceanogr., 54(5), 2009, 1627-1633 | DOI: 10.4319/lo.2009.54.5.1627
Godinot, C., C. Ferrier-Pagès, and R. Grover
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Many goodies in here, but especially:
A correlation was found between phosphate uptake rates and the organic or inorganic feeding history of the corals; rates were indeed 4.6 times higher in 8-week starved than in fed corals and depended on the repletion status of phosphorus stocks within the symbionts.
And…
We report evidence showing that zooxanthellae act as a sink of phosphate within the symbiosis.
Reef Success 