Water Users

Water users have a crucial role to play in the prevention and surveillance of invasive species.
    • Do not introduce non native species to the island of Ireland.
    • Keep up-to-date on invasive alien species, their impact and distribution in Ireland.
    • Keep ID guides on our most unwanted species.
    • Adopt practices that minimise the opportunities of spreading invasive species.
      • Inspect – remove – dispose – report. Removing build up of plants and animals from equipment is effective at preventing the opportunity of colonisation by invasive species. To prevent the spread of invasive species ensure you always follow these guidelines:
        • Clean all parts of equipment that comes into contact with the water.
        • Remove any visible plant, fish, animal matter and mud.
        • Do not move fouled equipment from one area to another.
        • Watch out for hitchhikers on ropes and chains.
        • Report sightings of our most unwanted species or any organism you suspect may be a high risk species. More information on these species can be found on www.invasivespeciesireland.com. Photographs can be submitted via the website.

Talk about invasive species. Talking about the impact invasive alien species have on the environment will help raise awareness of the issue and also inform others of their role in preventing the spread of high impact species.

Marine invasive species of concern

Didemnum vexillum
Common name: Carpet seasquirt
Threat: Impact on aquaculture and fisheries, protected species and marine ecosystem functioning
Status: Established invasive species
Photo credit: USGS
Find out more
Crepidula fornicata
Common name: Slipper limpet
Threat: Fisheries, protected species and marine ecosystem functioning
Status: Established invasive species
Photo credit: GB NNSS
Rapana venosa
Common name: Asian rapa whelk
Threat: Threatens marine ecosystem functioning
Status: Potential invasive species
Photo credit: Argyo Zenetos

Freshwater invasive species of concern

Hydrocotyle ranunculoides
Common name: Floating pennywort
Threat: Clogs waterways and negatively impacts on native species and ecosystems
Status: Established invasive species
Photo credit: John Early
Find out more
Google search
Google image search

Zebra mussel Dreissena polymorpha
Common name: Zebra mussel
Threat: Fouling, negative impacts on native species and local extinction of unionids
Status: Established invasive species
Photo Credit: GB NNSS
Find out more
Google search
Google image search
Cercopagis pengoi
Common name: Fishhook waterflea
Threat: Threatens native ecosystems and species
Status: Potential invasive species
Find out more
Google search
Google image search
A summary of the recommended actions in the Water Users Code of Practice can be found using the following links:
You can download the Water Users Code of Practice parent document from the following link:

 

Invasive Species Ireland

Invasive Species Ireland