Marina Operators

The risk assessment undertaken by Invasive Species Ireland identified a number of species that are high risk invasive species to the island of Ireland. A number of these organisms are known to contaminate equipment and vessels or are capable of surviving in water and/or fouled ropes and chains that are moved from one water body to another. Some of these mechanisms are quite obvious to the casual observer while others can go unseen and unnoticed until an impact is observed in a new area.

Invasive Species in Ireland aims to reduce the threat from these species through different mechanisms including recommending legislative provisions, development of the Invasive Species Code of Practice for Water Users and targeted education and awareness initiatives.

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
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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
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Google search
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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
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Google image search
Cercopagis pengoi
Common name: Fishhook waterflea
Threat: Threatens native ecosystems and species
Status: Potential invasive species
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A summary of the recommended actions in the Marina Operators Code of Practice can be found using the following links:

You can download the Marina Operators Code of Practice parent document from the following link:

Also the Rapid Assessment of Marinas for Invasive Alien Species in NI at this one;

 

 

Invasive Species Ireland

Invasive Species Ireland