Advertisement

  1. ITV Report

Fish purposefully poisoned

The Topmouth Gudgeon Photo: ITV News

The environment agency pumped chemicals into cuffley brook in Enfield to stop Topmouth Gudgeon from breeding.

It says it'll reintroduce native fish when the water's clean again.

The Topmouth Gudgeon one of the most invasive fish species in western Euope.

Dan Hewitt reports.