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Upper Midwest Environmental Sciences Center
U.S. Geological Survey research programs addressing a wide range of topics, including Great Lakes ecosystems, invasive species, mercury in the environment, and ecosystem monitoring for the Upper Mississippi River system.

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1 plantae such as cattail narrowleaf and their species genus family order class phylum 1 2
2 2001 flood of mississippi river 1 1
3 cattail narrowleaf and their species genus family order class phylum 1 3
4 paddlefish 1 5
5 photographs of dubuque iowa aerial 1 1
6 wisconsin farm ponds 1 1
7 farm pond contractors iowa 1 1
8 round lake mississippi 1 1
9 asian carp 1 2
10 information and pictures of marshlands lakes and ponds 1 2
11 alton pool 1 1
12 pictures of prairieville la 1 1