Northern Pacific Seastar In Australia
The Northern Pacific seastar (''Asterias amurensis'') is an invasive species in Australia. Background This seastar is native to the coasts of northern China, North Korea, South Korea, Russia and Japan, and distribution of this species into other countries has increased. It is on the Invasive Species Specialist Group list of the world's 100 worst invasive species. They can be transmitted to waters around the world via seawater in live fish trade, via recreational boats, in ballast water, and on the hulls of ships. The species prefers waters temperatures of 7°C to 10°C, but it has adapted to Australian waters of around 22°C, and usually found in shallow waters of protected coasts. It is able to tolerate a wide range of temperature and salinity, so is frequently found in estuaries and on muddy, sandy or rocky sheltered areas of intertidal zones. Detection, habitat and behaviour in Australia ''Asterias amurensis'' was first seen in Tasmanian coastal waters in 1986. Their pr ...
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