Researchers found a giant goldfish that was 1.5 feet long and 4.2 pounds when they are trying to search up an invasive species in Lake Tahoe. Goldfish are an invasive species that destroys the Lake Tahoe's ecosystem, and are warm fishes. The are consuming native species, and they discharge nutrients that causes algal bloom to the clear waters of Lake Tahoe. Aquarium dumping is causing problems to native wildlife then, aquarium trade has contributed a third of the world's worst aquatic and invasive species. It is stated that 20 percent and 69 percent of fish keepers surveyed in Texas admitted to dumping.
There are many other ways that native species are introduced to a whole new ecosystem or a new area such as aquaculture, live bait, and recreation vessels. Most of the invaders are fishes, seaweeds, and snails. One example, is Caulerpa, a deadly seaweed that produce toxic that can kill fishes, but it was eliminated before it became more a serious problem. Researchers advice to aquarium owners no to dispose any unwanted fishes.
After reading this article, I never thought that a goldfish can be that humongous and are invasive since they are one of the pet fished of humans. I never thought that goldfish can create a major problem to an ecosystem since they are pet fishes and thought that they are harmless to the environment but I was surprised to read this article. But, many aquarium owners should know how there fishes contribute to the environment and know how they can also cause major problems to the environment