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World Register of Introduced Marine Species (WRIMS)


WRIMS records which marine species in the World Register of Marine Species (WoRMS) have been introduced deliberately or accidentally by human activities to geographic areas outside their native range. It excludes species that colonized new locations naturally (so called 'range extensions'), even if in response to climate change.

WRIMS notes the origin (source location) of the species at a particular location by country, sea area and/or latitude-longitude as available. If the species is reported to have causes ecological or economic impacts it is considered invasive in that location. Each record is linked to a source publication or specialist database. A glossary of terminology is available. Links have been provided to species profiles of well-known marine invasive species in the Global Invasive Species Database (GISD) of the IUCN Invasive Species Specialist Group (ISSG).


In using WRIMS, users need to consider possible species misidentifications in the sources, and that for some species it is uncertain which are their native and introduced ranges. Whether a species is 'invasive' can vary between locations and over time at a particular location.

Link with LifeWatch Taxonomic Backbone:

The World Register of Introduced Marine Species (WRIMS) is one of the Thematic Species Databases within WoRMS.