Aquatic Invasive Species

Discover the impact of foreign aquatic invasive species on local biodiversity loss, sometimes with huge economic impacts, in this Natural Sciences display at Ulster Museum. 

Aquatic invasive species are non‑native organisms that are introduced - intentionally or accidentally - into freshwater or marine ecosystems where they do not naturally occur. Once established, these species can spread rapidly due to the absence of natural predators or competitors, often outcompeting native species for resources, altering habitat structure, and disrupting ecological processes. 

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Their impacts can extend beyond biodiversity loss to include significant economic costs, such as damage to fisheries, water infrastructure, and recreational industries. Aquatic invasive species may be transported through pathways such as ballast water discharge, aquaculture, aquarium releases, and recreational watercraft. Understanding their modes of introduction, mechanisms of establishment, and ecological consequences is crucial for developing effective management and prevention strategies aimed at protecting aquatic ecosystems and the services they provide. 

Opening in late summer 2026, This display covers examples in both freshwater and marine ecosystems, both animals and plants, with short descriptions of their effects in Ireland. 

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