Climate change moves Tasmanian fish

Australia's fish are on the move and climate change has been blamed.

Researchers from the CSIRO have found about a third of coastal fish species in the country's south-east are moving territory.

Warm-water species like the Rock Blackfish are thriving extending their range and becoming more abundant while Queensland tiger sharks are making their way south.

But some cool-water fish are struggling with 19 Tasmanian fish species in serious decline or extinct.

Peter Last the curator of the Australian National Fish Collection blames warm-water species which he says are moving in.