The diet of the wide stingaree consists mainly of isopods and polychaete worms. It is aplacental viviparous, with the females supplying their unborn young with histotroph ("uterine milk"). This species is regularly caught incidentally by commercial trawl fisheries operating in the Great Australian Bight. Although it is unlikely to survive being captured and also tends to abort any gestating young during the process, large portions of the wide stingaree's range see little to no fishing activity and overall the species is not threatened. The International Union for Conservation of Nature (IUCN) has listed it under Least Concern.