Thousands of prawns and hundreds of crabs were found lifeless on the coast of Chile, in a mystery that raises as many concerns as it does questions.
The scores of shellfish washed ashore on the coast of Coronel, about 330 miles southwest of the Capital of Santiago.
The cause is unknown, though concerns about the level of oxygen in the water is a particularly worry for ecologists and the large number of people who are dependant on the fishing industry.
Local fishermen in the region are blaming local power-stations that use the ocean’s water for its cooling systems. One local fisherman told regional news station Radio Bio Bio that it is a highly unusual case.
He said: “I'm 69 years old and started fishing when I was nine, but as a fisherman I have never seen a disaster of this magnitude.”
Others believe that the death of so many crustaceans could be a product of the El Nino warm water current that can run through the region - though as yet all claims remain inconclusive.
Local environment official, Victor Casanova, told reporters that officials are, “investigating the Coronel Bay to establish the physical parameters of temperature, electric conductivity and, above all, the oxygen.”
The immediate concern to locals is how the unusual phenomenon will affect the local communities that depend on the food-source throughout the year.
Marisol Ortega, a spokeswoman for the fishing community says if the problem persists it could cause greater and greater difficulties for locals.
She says: "the way everything is being destroyed here, come the high season in November, we're already thinking we won't have anything to take from the sea."