Posted on May 5, 2022
The Negative Impact Goldfish Have on Freshwater Life
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Flushing fish to freedom is a common cartoon theme, but has become a growing global problem for rivers or lakes. In 2003’s Finding Nemo, a Moorish idol trapped in an aquarium yearningly tells Nemo that, “all drains lead to the ocean.” The movie prompted viewers to flush their fish, or set them free in bodies of water.
Goldfish in particular are an invasive species that are thriving in freshwater, but causing ecological damage and endangering native species. In the Niagara River, officials pulled out a 14-inch goldfish. In Minnesota, the city of Burnsville displayed an 18-inch goldfish found in Keller Lake, and wildlife officials in Carver County caught as many as 50,000 pounds of goldfish living in multiple lakes.
Goldfish in particular are an invasive species that are thriving in freshwater, but causing ecological damage and endangering native species. In the Niagara River, officials pulled out a 14-inch goldfish. In Minnesota, the city of Burnsville displayed an 18-inch goldfish found in Keller Lake, and wildlife officials in Carver County caught as many as 50,000 pounds of goldfish living in multiple lakes.
The Negative Impact Goldfish Have on Freshwater Life
Posted from discovermagazine.com
Science
Animals
Wildlife
Fishing
Edited >1 y ago
Posted >1 y ago
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Lt Col Charlie Brown I always thought that if you put a goldfish into a lake it would die due to water temperature. I guess I wasn't very educated on that!
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If they found one in Minnesota that leads me to believe that they are capable of living under the very thick lake ice during Minnesota winters. At 18 inches it was most likely a multiple winters survivor. If they can survive that they can withstand just about any environment. I am familiar with at least two native species of the carp family that live in large numbers in northern Minnesota. The White Sucker and the Red Horse Sucker fill creeks every spring to spawn. We used to spear them and smoke them in beer and brown sugar marinade. A very tasty treat.
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