Dozens of dead fish were found on the shores
© Limestone Coast Community NewsDozens of dead fish were found on the shores of South Australia's Eight Mile Beach.
Dozens of dead sea animals, including sharks and octopuses, have mysteriously washed up on South Australian shores.

Residents were shocked to discover a mass of fish bodies littered on Eight Mile Creek, south-east of Mount Gambier.

Most of them were wobbegong sharks, but authorities also found snapper, wrasse, octopuses, Port Jackson sharks, stingrays, salmon and ling.


The state's Department of Primary Industries and Regions said their teams are working to determine the cause of death.

"The cause has not yet been confirmed, however early indications based on water testing are that low salinity caused by recent high rainfall is the most likely reason for the fish mortality event," a spokesperson said.

"PIRSA have collected tissue samples to rule out aquatic diseases and testing is underway."

The department spokesperson added that these events usually occur for a variety of factors, including temperature, rainfall or lack of, water quality, disease or pollutants.