Figure 7: Distribution of nutrient uptake within the benthic community.

(a) Biomass composition of the benthic community. (b) Distribution of total NH4+ uptake and (c) total PO43ā uptake from sediment plumes over the different species and functional groups in the benthic community. The graphs in (b,c) are based on a simple model that calculates the nutrient distribution from the measured nutrient uptake kinetics and standing biomass on the reef. Dictyota spp. is D. menstrualis at 5ām and D. pulchella at 20ām water depth.