Three varieties of carp, that are all the same species are present in Australian waters:
- Common carp
- Koi carp
- Mirror carp.
Carp were originally imported into Australia as game fish and have since spread throughout many waterways, including the Murray-Darling Basin. It is illegal for carp to be kept as ornamental fish in Queensland.
Carp pose a major environmental threat, as they can rapidly outnumber native fish and greatly disturb aquatic environments through their destructive feeding habits. Strategies are being developed to control and reduce the number of carp in Australian waters.
Carp is a restricted noxious fish under the Biosecurity Act 2014.
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Three varieties of carp are present in Australian waters: the common or European carp, koi carp and mirror carp.
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