Megabalanus coccopoma found in Poland in the coastal waters of the Baltic Sea in 2014.
Commen name: Titan acorn barnacle
Natural range: Extends in the Pacific from Mexico down to Peru
Pathway of introduction: It is unclear how the species has arrived to the Baltic Sea, but probable unintentional introduction with marine aggregates used for hydrotechnical engineering.
Where, when and how discovered: The species was found in Gdynia in 2014
Invasive status: -
Introduction status: -
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For more information on the siting in Poland: