PERMANOVA results comparing non-indigenous and native invertebrate species percent cover and richness sampled from artificial and natural habitats.

Non-indigenous invertebrate a) percent cover and b) species richness, native invertebrate c) percent cover and d) species richness compared between vertical surfaces of artificial (pilings and pontoons) and natural (reef) habitats. Habitats were sampled at twice at 4 sites. Significant results (p<0.05) are indicated in bold.