Data presented in the paper "Introduced marine ecosystem engineer indirectly affects parasitism in native mussel hosts"

Research objective: The alteration of habitat structure by introduced ecosystem engineers imposes direct impacts on native biota but can also exert trait-mediated indirect effects (TMIEs). In this study, we show that the habitat structure provided by invasive Pacific oysters (Crassostrea gigas) can also indirectly affect parasitism in blue mussels (Mytilus edulis). Type of research, method & collection of data: We conducted a three-month field experiment, in which uninfected mussels were positioned at the bottom and top of two intertidal oyster reefs in the Wadden Sea.