BioMed Central, Helgoland Marine Research, 2(60), p. 160-169, 2006
DOI: 10.1007/s10152-006-0034-7
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Marine benthic species introduced to the Az-ores are collated from scientific publications, internal reports and own data. Twelve algae and 21 invertebrates are classified as non-indigenous species, 18 as crypto-genic. Two species of algae and two ascidians are re-garded as particularly invasive along the shores of this oceanic archipelago.