Steven Spielberg”s 1975 thriller “Jaws” helped persuade the general public that sharks had been human flesh-eaters, prowling the shallow waters of the world’s seashores on the lookout for lunch.
Because of this, the provincial vacationer business got down to hold sharks away from skittish beachgoers in South Africa, lining 37 seashores with nets for 300 kilometres north and south of Durban.
However shark divers have warned that the nets are “principally curtains of demise”, trapping and killing all types of marine life, sharks included.
“They are a passive system that has been put within the water and every part that places its head in that web dies,” mentioned shark diver Walter Bernardis.
Figures recommend the predators hardly ever strike people, no matter whether or not they’re separated by nets, and conservationists now need the measures to be reconsidered.
Even though solely round 100 shark assaults are reported every year, people kill an estimated 100 million sharks yearly, in line with scientific findings printed in 2013.
Scientists and conservationists stress that the animals are essential for the ecosystem and key to regulating marine populations.
Additionally they observe that shark obstacles are barely efficient, particularly towards giant species.
Actually, divers have seen that almost all animals can swim underneath the mesh, which is simply six-metres deep, and infrequently get caught on their method again from the shoreline, reasonably than on the way in which in.
Nets and drum traces give swimmers a “false” sense of safety and sign “to those who sharks are harmful”, mentioned Jean Harris, head of South African conservation group Wild Oceans.
What wants to vary, she added, is “individuals’s minds”.