Environment Agency makes gains on invasive fish

The Environment Agency (EA) has eradicated the invasive non-native topmouth gudgeon from a pond in Leicestershire, one of 34 sites where the fish is known to have taken hold.

Native to Asia, the topmouth gudgeon has spread rapidly throughout Europe, posing significant threat to the ecology and wildlife of rivers and lakes, and the fisheries that they support. They outcompete native fish for food and habitat, and can also spread disease and parasites.

The work in Leicestershire is part of a wider EA campaign to protect England’s waterways from invasive species. It has so far reduced topmouth gudgeon to three known populations, with one other site being investigated. The agency has also eradicated populations of the invasive black bullhead catfish and fat-head minnow.

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