Massive algal bloom ravages South Australia's coastline

A toxic algal bloom covering more than 4,400 square kilometers of South Australia's coastline is being labeled an ecological catastrophe, as dead fish, stingrays and dolphins wash up on beaches.

"This is a natural disaster," South Australian Premier Peter Malinauskas told ABC's News Breakfast on July 22.

First detected off the Fleurieu Peninsula in March, the bloom has spread north into Spencer Gulf, south into the Coorong wetlands, and along Adelaide's coastline into the Port River.