Australia launches emergency relocation of fish as largest river system faces collapse

There are doubts the Noah's Ark plan for the Lower Darling will be enough to prevent more mass fish kills

Faced with a looming ferocious summer with little rain forecast, the New South Wales government has embarked on a Noah's Ark type operation to move native fish from the Lower Darling - part of Australia's most significant river system - to safe havens before high temperatures return to the already stressed river basin.

Researchers have warned of other alarming ecological signs that the Lower Darling River - part of the giant Murray-Darling Basin - is in a dire state, following last summer's mass fish kills.