Figure 6 in Distribution, habitat and food preferences of sympatric high intertidal isopod species Ligia occidentalis and Ligia pallasii (Ligiidae: Oniscidea)

Figure 6. Results of mesocosm experiments show that all treatments containing Ligia showed a significant decrease in dry weight of algal biomass compared with a control (none). The reduction in algal biofilm caused by Ligia pallasii (LP) treatment was significantly lower than that by either the Ligia occidentalis (LO) treatment or the combination of the two species (LO+LP). Letters above bars indicate significant differences among means (Post hoc Tukey tests).