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Monocorophium acherusicum
Image courtesy of Hans Hillewaert through Wikimedia Commons and the CC-BY-SA-4.0 license.
Monocorophium acherusicum
Taxonomic Group: Crustaceans-Amphipods


Monocorophium acherusicum is a tube-building gammarid amphipod. It has a wide global distribution and its native range is currently unknown. Populations are established on both coasts of North America, and throughout Central America, South America, Europe, Africa, Asia, Australia, and New Zealand. It has likely spread through hitchhiking on the hulls of commercial ships or with oyster transplants. It is found in shallow marine and estuarine soft substrates where it forms U-shaped burrows in the mud. It can also attach to hard surfaces, including rocks, bivalve shells, pilings, docks, buoys, and ships’ hulls. In some areas it is a pest species known for fouling maritime structures, but its impacts have not been quantified on a large scale.

* Content for this species is based on the literature and peer review is pending - if you have comments or feedback please contact Paul Fofonoff at

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Fofonoff PW, Ruiz GM, Steves B, Simkanin C, & Carlton JT (2018)
National Exotic Marine and Estuarine Species Information System.
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Marine Invasions Lab
Smithsonian Environmental Research Center

P.O. Box 28
647 Contees Wharf Road
Edgewater, MD 21037-0028 Tel: 443 482 2200
Fax: 443 482 2380

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