There is still much research needed to fully understand the complex ecosystems of the Great Australian Bight and how any resource extraction or other human activity may affect them. The Literature review also states: "Approximately 370 of the 600 fish species that occur in southern Australia have been recorded in SA. Several species, including the coastal stingaree (Urolophus orarius) and 10 crested threefin (Norfolkia cristata), are restricted to South Australia and occur in the GAB. The patterns of distribution and abundance of fishes in the GAB are poorly understood."