The Zebra Mussel

The Zebra Mussel Populations of the zebra mussel, Dreissena polymorpha (Pallas), were first build in the Laurentian Great Lakes in 1988 (Hebert et al., 1989). This species is native to the Caspian, Aral, and Black Seas and the rivers that drain into them but has spread lengthways Europe, principally during the 18th century. Since it is restricted to estuarine and freshwater habitats, it is presumed that it was introduced into north America by ballast waters of transoceanic vessels.

old bag on the substantial amount of genetic variation constitute in these initial populations, as estimated from ele ctrophoretic variation of allozymes, the resolution of the Great Lakes was by a large number of immigrants and non meet a few founders (Hebert et al., 1989). Despite this recency of plaque of this species, the zebra mussel has quick spread throughout a large allot of the coupled States. It has been reported from all the Great Lakes and Lake Champlain, the Mississippi Ri...If you compulsion to learn a full essay, order it on our website: BestEssayCheap.com

If you want to get a full essay, visit our page: cheap essay