Reducing the Impact of Non-Native Species in Europe

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Azolla filiculoides
Azolla filiculoides


RINSE worked across borders to share best practice and adopt strategic approaches to tackle the threats posed by invasive non-native species (INS).


  • Developed cross-border tools to improve prioritisation and targeting of INS, so that scarce resources can be directed towards the species and sites of greatest concern;
  • Enhanced the capacity to address INS within a range of target stakeholders;
  • Developed new approaches and best practices for the management of INS, by delivering field trials and demonstration projects.

The project was broad-ranging in its approach and examined INS across species groups including aquatic plants, aquatic invertebrates, birds, fish and land mammals and across a range of habitats. This was achieved through three different Work Packages:

1. Targeting and Prioritisation

2. Training and Awareness Raising

3. Field Trials and Demonstration

The INTERREG IVA 2 Mers Seas Zeeën Programme promotes crossborder cooperation between the coastal regions of 4 Member States: France (Nord-Pas de Calais), England (SW, SE, E), Belgium (Flanders) and The Netherlands (South coastal area). 

The Programme has three priority themes as well as a common priority with the France (Channel) – England INTERREG IVA Programme. The RINSE project was delivered under Priority 2: Promoting and enhancing a safe and healthy environment. For further information regarding the Programme, please refer to the 2 Seas website.

RINSE was approved in December 2011 and ran for three years. The total budget for RINSE was EUR 2.5 million.

Examples of INS investigated: 

  • Australian swamp stonecrop Crassula helmsii
  • Floating pennywort Hydrocotyle ranunculoides
  • Egyptian goose Alopochen aegyptiaca
  • Topmouth gudgeon Pseudorasbora parva
  • Mink Neovison vison
  • Muskrat Ondatra zibethicus
  • Pallas squirrel Callosciurus erythraeus
  • Himalayan balsam Impatiens glandulifera



Egyptian goose (Credit: Vera Buhl)