Palatability of the Antarctic rhodophyte Palmaria decipiens (Reinsch) RW Ricker and its endo/epiphyte Elachista antarctica Skottsberg to sympatric amphipods

►Host alga Palmaria decipiens is less palatable than epiphyte Elachista antarctica. ►Common mesograzing amphipods graze on epiphyte E. antarctica. ►E. antarctica does not grow on P. decipiens because of palatability differences.