They are also created to provide areas for scuba divers and anglers to use, reducing the human pressures that natural reefs bear on a regular basis. Natural reefs can be looked at as the rain forests of the seafloor, supporting a broad diversity of species (Bourjaily, 2000)
For this reason, they actually do more harm than good. Artificial reefs come in many forms -- while some are created thoughtfully and purposefully, others are just a cheap way to throw out trash (Goldschmid, 1998)
¶ … Negative Effects of Artificial Reefs Artificial reefs are man-made habitats that are created from many different materials to build new marine life communities (Rodriguez, 2004)