Shark populations have crashed in the waters off of Australia over the past few decades and researchers say it is a trend found around the world.
Vulnerable species have seen their numbers plummet in the region by over 90 percent. Overfishing is the suggested cause and it has sent these critical apex predators into an alarming decline.
Researchers used information from a shark monitoring program that has been in place since the 60s aimed at reducing shark attacks. They found that large apex sharks like hammerheads, great whites and tiger sharks have declined by 74 to 92 percent.
Nearly half of all shark species found worldwide are present in the waters around Australia.