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Northern Pacific Seastar

Northern Pacific Seastar

What it looks like

  • It is large with five arms
  • It is mostly yellow with purple or red markings
  • The rows of spines are not straight and the surface feels very rough and sharp.

Where it lives naturally

  • In the Pacific in the colder waters of the Asian coast.

Where it has spread to

  • Victoria including Port Phillip Bay
  • Eastern Tasmania.

How did it get to Australia

  • The floating young arrived in ship ballast water.

Why is it a problem?

  • They can reproduce into large populations
  • They hunt many native marine creatures and will eat most shellfish including oysters.

For more information about this species go to> Marine pests> Pest ID cards.

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