Australian researchers have found that the likelihood that swimmers will meet a dolphin on the beach is 135 times greater than that of a shark.
The drone video shows at least one big white shark, a hammerhead and a bull shark swimming off the coast of northern New South Wales, but even more dolphins, whales and even rays of the rays.
Brendan Kelakher, a professor of marine science and management at the University of Southern Cross, said that although the initial goal of the study was to analyze the viability of using UAVs to improve safety on the beach, the unexpected result was a survey of remote sea creatures. Any other way.
The study was conducted by Professor Kelakher and a group from Southern Cross University in collaboration with the Department of Primary Industry of the State of New South Wales in the framework of the New York State Shark Management Strategy for $ 16 million.
The team used drones to observe the beaches of Byron Bay, Ballina, Lennox Head and Evans Head, where shark bites were recorded in the past.
More than 4,100 large sea creatures were recorded, but the 47-year-old Professor Kelakher said that more dolphins were observed than sharks.
“On these beaches in the past five years, you could see quite a few dangerous sharks, but they were relatively rare,” he said.
“We found an incredibly diverse marine wildlife and fauna living near the beaches.
"This is phenomenal, we saw a massive fever of rays of up to 400 animals, and they formed crazy geometric patterns, almost like someone did in Photoshop."
Professor Kelakher said that the observed dolphins would play with sharks and annoy the cormorants or burning rays.
“They have a big brain and a lot of fun,” he said.
"That's why the chance of seeing a dolphin on the beach is much higher, because he is curious and really interested in what is happening."
Academician said that the study confirmed that drones have become a useful tool for monitoring security on beaches.
“The drone can search for sharks, they can let people know using a siren to get out of the water,” he said.
“Or, if someone gets into the gap, they can drop their personal flotation device and give an alarm. It enhances our ability to ensure the safety of people. ”
Professor Kelakher also said that the technology of unmanned aerial vehicles provided a new way to get an idea of the marine wildlife.
“The technology of unmanned aerial vehicles is fantastic, it gave us a look at the sky, which we did not have before, because helicopters scare things, while using drones we get an idea of the marine wildlife that we didn’t have before , – he said.
“There are always stunning things on our beaches, such as a flock of dolphins and Bryde's whales.
“We saw them feeding at a distance of several meters from the shore. The whales swam inside and drove the dolphins away from the road, it was really impressive. ”
The results of the study were published in the journal Marine and Freshwater Research.