Times of IndiaLean R·
Catfish released in 1974 become Spain’s ecological time bomb
In 1974, German biologist Roland Lorkowsky introduced the Wels catfish to Spain's Ebro River, where they've since become a top predator, threatening native wildlife. Their large size and aggressive feeding present significant hurdles for conservationists trying to maintain balance. Worsening climate change conditions could facilitate their further invasion into European waters, leading experts to deem eradication efforts nearly impossible.
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