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Encyclopedia Dubuque


"Encyclopedia Dubuque is the online authority for all things Dubuque, written by the people who know the city best.”
Marshall Cohen—researcher and producer, CNN

Affiliated with the Local History Network of the State Historical Society of Iowa, and the Iowa Museum Association.


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MAPLELEAF. Mussel. With a length to 4 inches (10.2 cm), the mapleleaf mussel lives in medium to large rivers and reservoirs with a mud, sand, or gravel bottom. The mussel is considered widespread and common. Hosts for the young include channel catfish, brown and black bullhead, and flathead catfish.