As with everything there are positives and negatives to GMO fish. Many GMO fish are bred to be ‘super’ fish that can stave of the cold for longer, grow faster, and are more resistant to disease. However, if these fish make it back into the wild it is unknown what their genetically modified genes can do to the wild fish population. Studies have been done to estimate the potential harm GMO fish could have on the wild fish population, but these studies are mostly facts and figures rather than real life experimentation with mixing these gene pools and opponents argue it is too risky to mix the two. Mixing of these genes could threaten mating success, the viability of natural habitats and ultimately the survival of a certain fish because survival of the fittest is no longer valid when ‘super’ fish are placed in with the ‘lesser’ competition.
Other problems with GMO fish actually stem from the aquaculture in which they are raised. These farms are breeding grounds for diseases and parasites, which can often harm wild fish when water runoff and waste from the fish farms is not properly disposed of. Antibiotics used on the farms also find their way into the wild fish population in this way and can damage the ecosystem they are entering by affecting all nature in that area.
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