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Freshwater crayfish are an important part of ecosystems in south-west rivers and dams and are also one of Western Australia's great delicacies.
Resource type: Fact SheetLast updated: 16.10.2019
Dangerous migrants - marine species that are introduced into environments in which they do not occur naturally can become deadly pests and represent one of the greatest threats to the world's oceans and biodiversity.
This fact sheet identifies some of the species introduced into Western Australia, how they get here and their impact on our native marine environment.
Resource type: Fact SheetLast updated: 22.08.2019
The inland waters of Western Australia are home to many species of native fish and crustaceans but are gradually being invaded by introduced species that don't occur naturally in our rivers and lakes. Learn more about aquatic invaders from this poster.
Resource type: PosterLast updated: 11.06.2019
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