The database provides detailed information on non-native marine pest plant and animal species in Australian waters. Species datasheets contain comprehensive information on taxonomic classification, morphology, ecology and physiology,vectors, pathways of introduction and impacts on natural systems, as well as a list of references and articles with additional information pertaining to that particular species. NIMPIS is a central repository of information on the biology, ecology and distribution (international and national) of invasive marine pest species. It includes known species that have been introduced to Australian waters and species that are considered to pose a potential of future introduction.