Skip to content ›
City of St.Albert
Goldfish Management Program Header Image

Goldfish Management Program

City staff are completing a second treatment of Lacombe Lake Park on Wednesday, September 19. Access to the lake will be closed until fencing is removed. Please follow signage and use detours. The trail will reopen following treatment.    

Lacombe lake park

In collaboration with Alberta Environment and Parks, the City of St. Albert will be completing a chemical treatment in Lacombe Lake Park using rotenone between:

September 4 - October 2, 2018

Rotenone is a naturally occurring compound derived from the roots of tropical plants and is commonly used to eradicate invasive fish. Rotenone is not harmful to humans, pets, wildlife or vegetation and breaks down naturally after application.

The goldfish removal activities will affect the use of the Lacombe Dog-Friendly Park and Designated Dog-Friendly Swim Area (beach): 

  • The entrance by the gazebo will be closed for approximately 8 hours during the treatment and will reopen once complete; and 
  • The dog beach and lake access will be closed for 72 hours following treatment.  

Please check back for updates on the Goldfish Management Program. 

Please refer to the FAQ document and resident letter for more information.

Goldfish Removal FAQ's 

Resident Letter 


In 2015, the City initiated a program to remove the goldfish from Edgewater Park stormwater management facility. The program consisted of drawing down the water level, electrofishing to remove some of the fish and using winter conditions to freeze the remaining water. Unfortunately, this management technique was unsuccessful and live invasive fish remained in the pond.   

Since the program was initiated in Edgewater stormwater management facility (SMF), additional locations were identified to have goldfish - Ted Hole SMF and Lacombe Lake Park. In 2017, the City completed a chemical treatment of Edgewater SMF and Ted Hole SMF. The program was deemed a success, as staff were able to remove an estimated 45,000 goldfish from both sites. The City will continue to collaborate with the province to identify approaches for removal of fish or mitigate the risks they present. 

Don't let it loose

Asian Goldfish have been deemed as an invasive species and are a threat to the natural ecosystems and the operations of storm water systems.  The City would like to advise that anyone who can no longer care for their domestic goldfish should speak to their local pet retailers or veterinarian about donating their fish to an aquarium or pond owner or learn about humane disposal.  Information can be found at the Alberta Environment and Parks website.  Releasing live fish into natural or man-made water bodies is illegal and can result in penalties.

Residents are not permitted to catch or remove any fish from a storm water facility. The removal of invasive species requires a special license from Provincial regulators to research, remove and eradicate the fish.


Government of Alberta's "Don't Let it Loose" Campaign - Poster

Government of Alberta's "Don't Let it Loose" Campaign - Quick Facts Card

Last edited: September 19, 2018

Return to the top ↑