Fig. 1From: A cross-genus comparison of grazing pressure by two native marine herbivores on native, non-native naturalized, and non-native invasive Sargassum macroalgaeSingle-choice assay results. Mean change in mass (± SE) for control (diagonal lines) and treatment (open) pairs of three algal species [S. agardhianum (n =15, red), S. horneri (n =14, 15, yellow), S. muticum (n =15, green)] offered to two grazers (Strongylocentrotus purpuratus and Tegula funebralis)Back to article page