In a concerning development for the endangered green sea turtles, a recent study by researchers from Griffith University in Australia reveals a disturbing trend—rising temperatures and pollutants are causing an alarming shift in the sex ratio of hatchlings, with some beaches seeing over 99% of new hatchlings being female.
The study, conducted on Heron Island in the Great Barrier Reef, identified heavy metal pollutants, including cadmium and antimony, as potential contributors to the feminization of the hatchlings. These pollutants, absorbed by female turtles living near human industries, transfer to the eggs during development, leading to a skewed sex ratio.
The findings highlight the intricate interplay of environmental factors on sea turtle populations, already under threat due to fishing bycatch, habitat destruction, and pollution. The researchers emphasize the need for comprehensive laws and policies to mitigate human-induced pollutants in ocean ecosystems to safeguard the long-term survival of these majestic creatures.
