Rejuvenation underway at Northlands storm pond in Viterra Park

Medicine Hat – The City of Medicine Hat has begun drawing down the water level in the Northlands storm pond in Viterra Park on Hull Way NE for a rejuvenation project to address invasive goldfish and improve the visual, functional, and ecological aspects of the area.

Aquatic invasive species include non-native aquatic animals, plants or insects which have been brought into our ponds and watercourses and negatively impact biodiversity.

“Goldfish multiply very quickly and outcompete most other aquatic species, contributing to an unbalanced and unhealthy ecosystem that can negatively affect water quality and the surrounding environment,” said Joel Wagner, Environmental Specialist with the City of Medicine Hat.

The invasive fish in the Northlands storm pond must be removed to ensure they are not released into the South Saskatchewan River through the underground stormwater system.

A qualified professional biologist will administer a licensed pesticide called Rotenone to eradicate the goldfish. This pesticide will target the invasive fish without causing harm to the pond, terrestrial wildlife species, surrounding vegetation, or the public.

Two applications of Rotenone will be completed to ensure an effective treatment, with consideration being given to the weather forecast during and after the application. The first treatment is scheduled for the week of Sept. 11, 2023.

“Please don’t release any fish into our ponds, storm systems or sewer. One or two fish can multiply into thousands of fish inside of one season. Eradicating invasive aquatic species is costly and disruptive and we want the community to continue enjoying these neighbourhood ponds,” adds Wagner.

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

Pet owners who intend to dispose of fish can drop by the City’s Parks and Recreation office to pick up a biodegradable fish burial pod free of charge.

Lowering the water level for the goldfish treatment allows City workers to perform proactive maintenance on the storm water infrastructure and address some of the overgrown vegetation at the same time.

“The catalyst for the project was someone releasing their aquarium fish into the pond. By addressing this immediate concern, it allows three City departments to work together and improve the park and pond area for the enjoyment of all residents,” adds Wagner.

Prior to treatment, a fence around the pond will prohibit people from entering the affected area. The trail through Viterra Park remains open for the duration of the work, which is expected to conclude near the end of October. Visitors are reminded to follow all area signs and allow contractors room to work safely.

Residents are invited to read full details about this project and leave a question for the project manager on the City’s Shape Your City page at https://shapeyourcity.medicinehat.ca/northlands-storm-pond.

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