On August 5th, 2025, the Wyoming Game and Fish Department (WGFD) issued a warning to Teton County residents, urging them not to release pet fish, such as goldfish, into local waterways following the discovery of goldfish in May Park Pond in Jackson. The finding, reported by a concerned citizen, highlights the serious ecological risks posed by introducing non-native species into Wyoming’s aquatic ecosystems.Goldfish, known for their hardiness, can survive harsh Wyoming winters, grow rapidly, and reproduce quickly, competing with native species for food and resources. They can also introduce harmful diseases, disrupting delicate aquatic ecosystems. “Releasing fish into Wyoming waters can quickly lead to new invasive populations that can be extremely difficult to remove,” said Darren Rhea, Jackson Regional Fisheries Supervisor. Such actions divert resources from critical fisheries management and carry some of the highest penalties for wildlife violations, including fines up to $1,000 and potential jail time.WGFD recommends following the C.A.R.E. guidelines for unwanted pets or aquarium plants:
- Contact: Check if the pet store or supplier will take the fish back.
- Act: Never release animals or plants into the wild.
- Research: Seek alternative homes through pet stores, zoos, aquariums, or shelters.
- Euthanize: Humanely euthanize the fish if necessary, or freeze and discard plants in the trash.
The discovery in May Park Pond underscores the importance of protecting Teton County’s waterways, including those in the Greater Yellowstone Ecosystem. For more information on invasive species and proper disposal, visit the WGFD “Don’t Let it Loose” webpage at wgfd.wyo.gov or contact the Jackson Regional Office at (307) 733-2321.
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