Note
The present study was designed to test the habitat preferences of epifaunal amphipods when offered three different seagrass species and a highly branched red alga. Because of differences in the ratios surface area to biomass among the plants, experiments were designed to test whether amphipod habitat selectivity was based on plant biomass or surface area. Adaptive significance of habitat selectivity in epifaunal amphipods is considered in relation to predatory behavior of major amphipod consumers.