We have been working with local organisations towards eradication of floating pennywort from the River Waveney. This species spreads rapidly and can quickly take over water courses restricting movements and activities, crowding out native vegetation and choking rivers.
Since 2010 floating pennywort has been treated in the Waveney between Diss and Needham. The infestation of this plant on the river has been significantly reduced over the years and in recent years herbicide treatment is no longer required to control this species. We are working towards eradication of this plant on the river in the next few years.
The NNNSI are taking part in a flagship project to help eradicate Japanese knotweed and Himalayan balsam from the River Wensum and its catchment. Take a look at this leaflet for more information. If you have seen these plants, already manage these plants on your land or want to be involved please get in touch with the NNNSI coordinator.
Since 2003, the Norfolk Mink Project has been helping to protect Norfolk's biodiversity from the invasive predator the American mink. This predator has been known to greatly impact the native water vole. From 2012 the project has covered most of Norfolk's rivers. For more information visit the Norfolk Mink Project webpages.
Water primrose is a perennial plant that lives in water bodies. Its distinctive bright yellow 5-petal flowers can be seen during the summer months. This is a priority species and one of the most potentially damaging to our wetlands. It spreads by vegetative fragments and can quickly crown out native vegetation, blocking water courses and increasing flood risk. There is a nationwide eradication scheme coordinated by the Environment Agency for this species. In Norfolk the NNNSI worked towards eradication of this plant at its only known location between 2010-2012 and continually monitor the site and surroundings for any resurgence. If this species is seen it should be reported immediately.
Water Primrose Copyright GBNNSS
The Norfolk Ponds Project (NPP) was formed in 2014, with the aim of promoting the conservation of Norfolk ponds.