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Results of preference trials for Small (<3g) and Market sized (>30g) M. rosenbergii prawns when offered either single species populations of B. glabrata snails of three size classes (S = 4mm ± 2mm, M = 8mm ± 2mm, L = 12mm ± 2mm) or two snail species (BT = B. truncatus, BG = B. glabrata) in equal ratios. Outcomes are similar whether expressed in terms of biomass of snails consumed (top graph) or the number of snails consumed (bottom graph).
