Kelp
Kelps are large brown algae seaweeds that make up the order Laminariales. There are about 30 different genera.
Great Southern Reef
Kelp forests are a defining feature of the reef. The reef supports economic activities along Australia's southern coastline, such as commercial and recreational fishing, scuba diving, surfing and other tourism. These activities contribute at least $10 billion to the Australian economy each year. Biologically, it is a unique temperate marine ecosystem, with 30 to 80% of its species found nowhere else.