Local authorities in Colorado have launched an investigation after a lake in Boulder became infested with 3000-4000 goldfish.
Officials from the Colorado Parks and Wildlife (CPW) have launched an investigation after finding close to 3000-4000 goldfish in Teller Lake #5. Goldfish are not the native fish, and the authorities have stated that their presence in such a large number might affect the ecosystem.
Kristin Cannon, district wildlife manager for Boulder, Colorado, said, “Goldfish are not a native species and are very harmful to the local aquatic ecosystem. We strongly encourage the public not to dump their unwanted pet fish in our waters. It is bad for our environment as well as illegal.”
CPW officials have added that the fish that are native to the lake, which include the channel catfish, blue gill fish and sun fish, are now being threatened by the invasive goldfish.
Officials believe that someone deliberately dumped a handful of goldfish in the lake couple of years ago, and then they got multiplied.
Jennifer Churchill, CPW spokesperson, said, “Dumping your pets into a lake could bring diseases to native animals and plants as well as out-compete them for resources. Everything can be affected. Non-native species can potentially wipe out the fishery as we’ve put it together.”
The authorities have now added that the goldfish will removed from the lake by draining the lake and rebuilding the natural fish stock or by bringing in specialized boats that would pick out only the goldfish from the water by electroshocking.
“With electroshocking, you go in the boat and stun the fish to paralyze and collect them. The shock doesn’t kill the fish. The fish could also be collected if the lake is drained. I’m going to talk to Boulder County, who owns the lake to see what they think, but I don’t want to send the message that collecting fish for personal fun is okay,” added Churchill.