Great White Sharks: How Many Are There and Why Are They at Risk?

Great White Sharks: How Many Are There and Why Are They at Risk?

In temperate and subtropical areas all throughout the world, great white sharks are well-known marine predators.

How many of these sharks are there, and what dangers do they face?

According to the National Oceanic and Atmospheric Administration (NOAA) Fisheries, great whites (Carcharodon carcharias) can reach lengths of more than 20 feet and weigh up to 4,500 pounds.

These sharks can be found in U.S. waters from Alaska to California and Hawaii on the pacific side and from Maine to the Gulf of Mexico on the Atlantic side. 

Tobey Curtis, a shark biologist with the NOAA, claims that DNA analysis has revealed that there are various geographical subpopulations of white sharks throughout the world.

White sharks in southern Africa, Australia/New Zealand, the northeastern Pacific, the northwestern Pacific, the northwestern Atlantic, South America, and the Mediterranean are among these subpopulations.

Although white sharks have been studied a fair amount, it is difficult to estimate their real population size globally. According to Curtis, there are no estimates of the magnitude of the white shark population at the worldwide level.

However, relative to many other marine species, they are naturally underrepresented because of their enormous bodies as apex predators.

Even these local projections, which are highly speculative, have been made for certain distinct places, including South Africa, Australia, and the coast of California. 

According to him, the projections have often been in the low hundreds for each location.