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Pest fish

Identify invasive pest fish in our region and find out how to restrict them from our lakes and waterways.

Our lakes and waterways are under threat from several invasive fish species. These pests harm local ecosystems and reduce water quality. Here's what you need to know–and how you can help.

Established (known to be in our area)

Present but not yet widespread

  • Carp (Cyprinus carpio)

High-risk ornamental species spotted locally

Why pest fish are a problem

  • These fish compete with native species for food and habitat.
  • They damage water quality and harm overall ecosystem health.

What you must do (Biosecurity obligations)

If you catch a restricted or ornamental pest fish, you must:

  1. Euthanise humanely.
  2. If you're out on the water, keep the dead fish separate and dispose in a dry bucket.
  3. Once on land, bury or bin it – never put it back in the water.
  4. If you see illegal fishing or dumping, report it to Biosecurity Queensland on 13 25 23.
  5. If you find an unlisted invasive fish – or suspect one – report via the Biosecurity Queensland online form.

Do not:

  • Release invasive fish back into the wild.
  • Use them as bait.

How you can help

  • Never dump unwanted aquarium fish into waterways.
  • Use only native fish in outdoor ponds and ensure they can't escape.
  • Don't trade exotic fish with pet shops or neighbours.

What Council is doing

  • Educating the community about invasive fish risks and prevention.
  • Running surveys using FeralFishScan to track pest fish.
  • Supporting research into biological control methods.
  • Exploring new ways to reduce invasive populations.

Reporting is key

Please report sightings:

Resources

Protecting our aquatic life starts with you. Let's work together to keep the Sunshine Coast waterways healthy and full of life.