Photos of invasive species
Photos of invasive species
NEMESIS is a resource for information on non-native (or exotic) species that occur in coastal marine waters of the United States.

The Smithsonian Environmental Research Center (SERC) has developed and maintains a national database of marine and estuarine invasions of the continental U.S. and Alaska. This relational database compiles detailed information on approximately 500 different non-native species of plants, fish, invertebrates, protists and algae that have invaded our coastal waters. The database identifies which species have been reported, their current population status (i.e., whether established or not), as well as when, where, and how they invaded; it also summarizes key information on the biology, ecology, and known impacts of each invader.

The Daily Invader

Bryozoan (Bugulina fulva)

Hans De Blauwe WoRMS for SMEBD, CC BY-NC-SA 3.0 License

 Bugulina fulva was first described from British waters in 1960, but its patchy distribution and tendency to occur in harbors indicates a cryptogenic status in European waters. It is more consistently distributed in the Northwest Atlantic, its probable native range, where it occurs from Cobscook Bay, Maine to the Gulf coast of Florida. Introduced populations have been found in California. It was first collected in San Diego Bay in 2000 and was subsequently identified from San Francisco Bay in 2010. It is a common fouling organism in European waters, but no impacts have been reported from its introduced range.
National Database Record
California Database Record









NEMESIS Overview| Collaborators | Citation | Disclaimer | Credits |