1.
A list of newly (re)appearing alien species in Belgium in support of decision making ...
2.
Registry of non-native species in the Two Seas region countries (Great Britain, France, Belgium and the Netherlands)
Checklist of non-native freshwater fishes in Flanders, Belgium ...
Prioritized lists of alien species in Belgium and its regions ...
Observations.be - Non-native species occurrences in Wallonia, Belgium ...
Invasive species - Chinese mitten crab (Eriocheir sinensis) in Flanders, Belgium ...