Managing marine nonindigenous species (mNIS) is challenging, because marine environments are highly connected, allowing the dispersal of species across large spatial scales, including geopolitical borders. Cross-border inconsistencies in biosecurity management can promote the spread of mNIS across geopolitical borders, and incursions often go unnoticed or unreported. Collaborative surveillance programs can enha...
The results of a survey on bryozoans and entoprocts in the Ria de Aveiro (NW Portugal) are presented. The Ria de Aveiro is a coastal lagoon hosting large port facilities and several tourist marinas, thus presenting a wide variety of submerged structures and consequently a rich fouling community. In June and July 2004, 10 stations were selected and biological samples were collected from hard substrates such as w...