Ongoing tests show drones are an effective way to spot sharks that wander too close to busy beaches. (via hakaimagazine)
It’s 8:00 a.m. on a sunny 29 °C Saturday at Alexandra Headland on the Sunshine Coast of southeast Queensland, Australia. Swimmers porpoise through the shimmering water, while farther offshore surfers straddle their boards in anticipation of the next big wave. If anyone is worried about a shark bite, you wouldn’t know it.
For decades, Queensland has relied on nets and baited-hook drumlines to help protect beachgoers from sharks. But that safety comes at a cost to marine life. Last year alone, that equipment caught 958 animals, including 798 sharks—70 percent of which died. Sixteen turtles also perished as unintended victims along with 10 dolphins and two dugongs, a vulnerable species in Queensland. And in 2022, 15 humpback whales were caught in shark nets, though all of them were safely removed.
If the pilots deem the shark a danger, they can evacuate the beach while lifeguards follow in inflatable boats or personal watercraft to track the animal and monitor the threat. For conservationists, the switch away from nets and drumlines can’t come soon enough. Any further delay in removing the lethal deterrents “is baffling,” says Leo Guida, a shark scientist with Australian Marine Conservation Society. “They’ve got the solution on the table.”
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