INVESTIGATIONS into the death of about 500 bream and herring in the Murray River last month have been completed.
The Department of Water and Environmental Regulation responded to reports of dead fish in the river between Ravenswood and South Yunderup on June 25.
An autopsy undertaken by fish health experts at the Department of Primary Industries and Regional Development revealed the fish had suffered stress from exposure to poor water quality.
Department of Water and Environmental Regulation Peel region manager Bob Pond said the autopsy results were consistent with testing of water samples from the investigation area.
“Evidence suggests a heavy organic load associated with recent rainfall combined with strong outgoing tides led to a deterioration in water quality,’’ he said.
Fish deaths should be reported to the FishWatch 24 hour hotline on 1800 815 507.