Wakame (Undaria pinnatifida) is a large species of seaweed originating from the Pacific and is considered by the IUCN Invasive Specialist Group to be one of the 100 'world's worst' invasive species, due to its potential to impact ecological and economic interests. Scientists do not currently believe that the true spread of the species is known for Great Britain and North West Europe and producing an accurate distribution of this species is important in terms of managing and controlling spread.

Wakame Watch has been established in order to generate an up-to-date picture of the distribution of the species, by encouraging recording of sightings from the public, in particular, we are asking divers, snorkelers, recreational boat users, fishermen and environmental surveyors to let us know when they encounter the species.