The GB Non-Native Species Secretariat in conjunction with the Environment Agency has issued a new warning about the invasive Quagga Mussel, which has now been found in both the Lee and the Colne river systems.

Please read all about the threat here and take appropriate action yourself.

In October 2014 Quagga Mussel was found in Wraysbury Reservoir and the Wraysbury River, a tributary of the River Colne, near Egham, Surrey, and subsequently in a number of other waterbodies. This is the first UK record of this species.
The Quagga Mussel (Dreissena rostriformis bugensis) is a highly invasive non-native freshwater mussel from the Ponto-Caspian region, very similar to Zebra Mussel. It can significantly alter whole ecosystems by filtering out large quantities of nutrients and is also a serious biofouling risk blocking pipes smothering boat hulls and other structures.