Aquatic invasive species are regulated federally under the Fisheries Act and provincially under the Fisheries (Alberta) Act.
A full list of aquatic invasive species in Alberta can be found in the Aquatic Invasive Species Pocket Guide.
Invasive species at home
Goldfish and koi are non-native species and are considered to be invasive because of the adverse effects they can have in areas like retention ponds. Without any natural predators, goldfish and koi can outcompete other species in the area, creating an unbalanced and unhealthy ecosystem that is costly to fix.
See how a senior fish biologist used pesticide in Leinweber pond.
Never use goldfish or koi as bait, dead or alive. Penalties for introducing a fish into any waterbody other than where it was found can be up to $100,000 and/or a year in prison. Do not flush it, and do not place it in a local body of water.
If you are no longer able to care for a fish in your aquarium or pond, the Government of Alberta recommends:
- Contacting a retailer or pet store
- Giving it to an aquarium or pond owner
- Donating to a school
- Talking to a veterinarian
If your pet goldfish passes on, please bury it or dispose of it in the garbage to prevent the spread of disease. Pet owners who intend to dispose of fish can drop by the Parks and Recreation office to pick up a biodegradable fish burial pod free of charge.
For more information, visit the Government of Alberta website.