Number of surviving

Globally, the number of hawksbill sea turtles may have declined by as much as 80 percent over the past century due to commerce in their shells, poaching, habitat loss, bycatch and entanglement in marine debris. Although hawksbill numbers continue to decline globally, at protected beaches on Mona Island, Puerto Rico, nests increased from 177 (in 1974 )to 332 (in 2005).