So far this year, over three thousand dolphins have been found dead in various parts of the coast of Lambayeque, Peru21 reported.
Heinz Plengue, a representative at the Chaparrí Ecological Reserve, said 481 dolphins had been found on the beaches in the last few days alone.
Carlos Yaipen Llanos, science director at ORCA, said the deaths were the result of a “marine bubble,” an acoustic pocket that forms as a result of using equipment to explore for petroleum below the seabed.
“The oil companies use different frequencies of acoustic waves and the effects produced by these bubbles are not plainly visible, but they generate effects later in the animals. That can cause death by acoustic impact, not only in dolphins, but also in marine seals and whales,” Yaipen said.
The acoustic shock, he said, causes loss of equilibrium, disorientation and internal hemorrhaging in the animals.
Lambayeque’s Fishermen Association denied that local fishermen had been killing the dolphins.
Peru’s oceanic institute said it had taken samples from the dolphins and would be investigating the cause of death.