Minnesota Public Radio: ‘Report: Healthier Mississippi River faces plenty of issues’
The health of the Mississippi River today, compared to 40 years ago, is good.
Before wastewater treatment plants and pollution limits, game fish like walleye and smallmouth bass had practically disappeared from the section of the Mississippi that runs through the metropolitan area.
Now, the fish are back. Mussels are also back — they are an important sign of good water quality. And bald eagles, which depend on fish, are back too.