|Alien species in the marine and brackish ecosystem: the situation in Belgian waters|
|Kerckhof, F.; Haelters, J.; Gollasch, S. (2007). Alien species in the marine and brackish ecosystem: the situation in Belgian waters. Aquat. Invasions 2(3): 243-257|
|In: Aquatic Invasions. European Research Network on Aquatic and Invasive Species: St. Petersburg. ISSN 1818-5487, more|
Aquaculture; Brackishwater environment; Introduced species; Marine environment; Shipping; Vectors; ANE, Belgium [gazetteer]; Marine; Brackish water
Belgium; aquatic species introductions; shipping; aquaculture
In total 61 aquatic alien species (AAS) are known from Belgian marine and brackish waters, eight of which are considered as cryptogenic species. The majority of the Belgian AAS have established self-sustaining populations, although for some species the establishment is uncertain or in need of verification. Prime introduction vectors are shipping, including small recreational craft, and aquaculture. Most AAS originate from the temperate northwest Pacific. The invasion rate has been increasing during the last two decades.