1999 - 2010 Alien species of Bugula (Bryozoa) along the Atlantic coasts of Europe Surveys of Marinas and Harbours

Distribution records of the bryozoan Bugula neritina, collated for the paper Alien species of Bugula (Bryozoa) along the coasts of Atlantic Europe. The distributions presented are based on Marine Biological Association (MBA) surveys targeting non-native sessile fauna in England and continental Europe, and on recent visits to marinas and harbours in Britain, Ireland and southern Europe by the other authors (especially DM) or collaborators. Floating pontoons at marina sites were examined from the surface by direct visual observation. In addition to inspection of the pontoons themselves, submerged artificial substrates such as hanging ropes, keep cages, fenders, etc., were pulled up and examined. Hooks, nets and scrapers were used if necessary to access material for inspection. In some cases, leisure craft hulls, especially idle craft immersed for more than a year, were also examined for B. neritina.