Marine Invasive Non-Native Species List for Northern Ireland
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Marine invasive non-native species are those that have been introduced into an area by human intervention.
Marine invasive non-native species can have a detrimental impact on the environment, economy and human health. Different species pose different risks to biodiversity and society, and these are assessed using a risk based approach. The link below lists high, moderate and low impact invasive alien species for Northern Ireland waters. This list is subject to updates according to new introduction or spread of species, or when new risk assessments become available.