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Home > Biosecurity > Aquatic Pests and Diseases

Quarantine Tasmania
Aquatic Pests and Diseases
Abalone Viral Ganglioneuritis
Caulerpa taxifolia
Didymo (Rock Snot)
Aquarium Caulerpa (Caulerpa taxifolia)
Asian Paddle Crab (Charybdis japonica)
Chinese Mitten Crab (Eriocheir spp.)
Colonial Seasquirt (Didemnum spp.)
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Veterinary Board of Tasmania

Aquatic Pests and Diseases

Aquatic pests can cause serious impacts. They have the potential to destroy marine and freshwater environments and to decimate recreational and commercial fisheries and other aquatic industries. Be aware of the threats your gear poses as a carrier of pests between waterways, particularly items that remain damp for long periods. The following are potential threats to Tasmania:

Abalone Viral Ganglioneuritis
Information on Abalone Viral Ganglioneuritis and biosecurity protocols for protecting Tasmania's abalone.
Caulerpa taxifolia
Has been widely used as a decorative plant in the marine aquarium trade and if released in Tasmanian waters has the potential to grow rapidly into lar...
Didymo (Rock Snot)
Didymo (Didymosphenia geminata) is a freshwater algae not present in Tasmania but recently discovered in New Zealand.
Aquarium Caulerpa (Caulerpa taxifolia)
Recorded in South Australia and New South Wales; not yet recorded in Tasmania.
Asian Paddle Crab (Charybdis japonica)
A native of the western Pacific that has not yet been recorded in Tasmania.
Chinese Mitten Crab (Eriocheir spp.)
A native of the north-west Pacific that has not yet been recorded in Australia.
Colonial Seasquirt (Didemnum spp.)
Recorded in New Zealand; not yet found in Australia.

Preventing the spread - what you can do:
  • Clean all the fouling from your equipment every time

  • Rinse your equipment before taking it to a new location

  • Dry your equipment before taking it to a new location.
Help protect Tasmania against aquatic pests and diseases

For more information on preventing the spread see Keeping it clean - A Tasmanian field manual to prevent the spread of freshwater pests and pathogens.

Quarantine restrictions
There are conditions regarding bringing fishing equipment and watercraft into Tasmania. See the Quarantine page What you can and can't bring into Tasmania.

Quarantine has a Checklist for boaters, fishers and divers travelling to Tasmania. Contact Quarantine Tasmania for more details.

Arrows graphic.Follow these simple steps to make sure marine pests aren't hitchhiking on your boat.


Existing pests in Tasmanian waters
See Marine Pests for information on existing marine pests, ways to help reduce their spread, and the systems in place to prevent the introduction of new marine pests to Tasmanian waters. Keep your fishing gear, dive gear and boats clean. By thoroughly cleaning surfaces and removing any water or organic material that may harbour threats you can prevent the spread of many aquatic diseases and marine pests.


Tasmania Online


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