Dreissena bugensis

Basic information
Scientific name	Dreissena bugensis	(No picture)
Common names	Quagga mussel
Higher taxon	Dreissenidae, Veneroida, Bivalvia, Mollusca
Natural range	Ukraine (northwestern coast of the Black Sea)
Habitat	This species forms colonies by attaching using byssal. Usually freshwater, but sometimes blackish. The “epilimnetic” morph forms colonies on some objects, whereas the “profunda” morph can form colonies on objects by attaching using byssal and in soft sediment by burrying.

Invasion information
Range in Japan	Not established in Japan
Origin	Unintroduced to Japan.
Date	Not Introduced to Japan.
Route	Accidental: Hitchhiking on ballast water (larvae) and fouling on ships (adults)
Impact	Possibly: Mass predation by filter feeding and changing the structure of food web. Competition with native species. Nutrient enrichment. Native organism(s) affected: Various species in aquatic communities.
Regulation in Japan	Import, transport and keeping are prohibited in Japan by the Invasive Alien Species Act.
Introduced range in other countries	North America (the Great Lakes to St. Lawrence River, Mississippi River, Nevada, Arizona, and California States), Caspi Sea, Russia (Volga River), Germany, Neatherland, Romania. Artificial introduction have also occurred within Ukraine.

Reference

Notes

Claxton & Mackie (1998) Seasonal and depth variations in gametogenesis and spawning of Dreissena polymorpha and Dreissena bugensis in eastern Lake Erie. Can J Zool. 76, 2010-2019.
Claxton et al. (1998) A genetic and morphological comparison of shallow- and deep-water populations of the introduced dreissenid bivalve Dreissena bugensis. Can J Zool. 76(7), 1269-1276.
ISSG. Global Invasive Species Database (GISD) (Accessed on 2012-7-18) http://www.issg.org/database/welcome/.
JWRC (ed) (2008) A Photographic Guide to the Invasive Alien Species in Japan. Heibonsha, Tokyo (in Jpn)
Mills et al. (1996) A review of the biology and ecology of the quagga mussel (Dreissena bugensis), a second species of freshwater Dreissenid introduced to North America. Am Zool. 36, 271-286.
USGS (2009) NAS -Nonindigenous Aquatic Species (Accessed on 2011-01-06) http://nas.er.usgs.gov/