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Biological pollution, caused by the negative impact of alien species, also known as non-indigenous species (NIS), is regarded as one of the greatest threat to marine ecosystems. The recent upsurge in the number and spread of these species drew attention to putative vectors such as shipping and shellfish importation for culture and consumption. The port of Taranto in Southern Italy is a hub for several vectors as it serves commercial and military shipping, fishing and recreational boating, in addition to shellfish importation. An analysis of anthropogenic activities and possible vectors in Taranto Seas was recently carried out within the framework of the RITMARE Project, involving local stakeholders. Different categories of stakeholders answered dedicated questionnaires with a high degree of reticence, and this highlighted a general lack of awareness of the problems associated with alien species. Consequently, there is a strong need to instil a truly ecological awareness among the general public and stakeholders. [ABSTRACT FROM AUTHOR]