Information C o m p a n y 3 0 0 North Z e e b R oad. Ann Arbor. Ml 4 8 1 0 6 -1 3 4 6 USA 3 1 3 /7 6 1 -4 7 0 0 8 0 0 /5 2 1 -0 6 0 0 Order N u m b er 9401567 G enetic p op u lation stru ctu re o f a sp ecies com p lex o f blue m ussels (Mytilus spp.)