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Introduction How Rivers Run Stories Value Of A River What We Can Do
Restoring Ups and Downs on the Mississippi
(pg 3 of 11)

"Historically, in the Minnesota stretch of the river, we probably had 40 or so species of freshwater mussels. Today, the pools upstream of Lake Pepin are recovering from decades of oxygen depletion that has been corrected with sewer separation and better treatment," said Mike Davis, a river ecologist for the Minnesota Department of Natural Resources. "This area was nearly a dead zone at one time. We now find around 25 species out of the original 40-43 present."

In reality, say Davis and other state and federal biologists, the upper Mississippi, from the Twin Cities to St. Louis, is still in trouble simply because we have forced the river to become a series of static pools for the sake of shipping coal, grain, and other commodities by barge.


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Introduction
Whitewater
Mississippi
Straight
Valley Creek
Gulf of Mexico
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