According to researchers at Deakin University, sharks are the unsuspected heroes protecting humans from the threats of climate change.
Dr. Peter Macreadie, the Deakin University project’s lead researcher, explained that when humans kill sharks they cause instability in the ocean’s natural food chain, which can ultimately lead to the release of carbon from the seafloor into the earth’s atmosphere.
With fewer sharks in the food chain, populations of the predator’s food sources, such as sea turtles, flourish.
One of the sea turtles’ main food sources is seagrass, which store vast reservoirs of carbon within sediments. With more sea turtles consuming more seagrass, the carbon is unlocked and can be released into the earth’s atmosphere, thereby accelerating climate change.
The current study and future investigations will help scientists to better understand the consequences of shark-culling practices throughout the earth’s oceans.
[img source] Paolo Macoriq (CCA2.0)
The above story is based on materials provided by the Deakin University.