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Pollution was a small factor but the largest factor is the spread of the Asian Carp which feed on algae and surface insects. This causes a disruption in the entire river ecosystem all the way to the largemouth bass causing a decrease in available food and therefore a decrease in population.
What else can I help you with?
Why Mississippi river change direction of flow?
200 years ago there was an earthquake in Illinois that caused the flow of the Mississippi river to change direction
Rivers that are in Illinois?
The major rivers in Illinois are the Illinois River, Mississippi River, Ohio River and Wabash River.
Is the Illinois river a healthy river?
Yes the Illinois River is healthy!
Which river merges with Mississippi river at the lower end of state Illinois?
Ohio
Two great waterways in Illinois?
The major rivers in Illinois are the Illinois River, Mississippi River, Ohio River and Wabash River.
What are the three largest rivers in Illinois?
The Mississippi River is the largest river and it is the western border of Illinois. The Ohio and Wabash Rivers are the southern border of Illinois. The Illinois River is the largest internal river in Illinois.
What river runs from Chicago to St. Louis?
Illinois River
Which major rivers flows through central Illinois?
Illinois River
What river separates Missouri from Illinois?
The Mississippi River forms the boundary between Illinois and Missorui
What is the name of a river that begins with letter i?
A river that begins with I is the Illinois River in Illinois USA.
The river is the western border of Illinois. what is the river?
Illinois is bordered by the Mississippi River on the west.
What are the states that border the Illinois river?
The Illinois River is entirely contained within the State of Illinois.
