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Black-striped mussel

What it looks like

  • Shell is easily crushed
  • They live in clusters
  • Can be many shades from black to a light colour, can have a zigzag pattern
  • One shell is slightly larger and overlaps the other
  • They grow to about 25mm.

Where it lives naturally

  • Central America on the Atlantic side.

Where it has spread to

  • Northern Territory
  • South East Asia, India and Japan.

How did it get to Australia

  • The floating young arrived in ship ballast water
  • Attached to the hulls of ships.

Why is it a problem?

  • They grow on everything in the seawater, including wharfs and any machines like pumps that are left in the sea.

For more information about this species go to www.marinepests.gov.au> Marine pests> Pest ID cards.

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