Restoration of the Mississippi River Gorge: Issues and research needs

Agriculture & Biology

• Mississippi River 100%
• dams (hydrology) 83%
• mussels 36%
• ecosystems 26%
• ecological value 23%
• stream channels 23%
• ecological restoration 23%
• recreation 22%
• fish 20%
• sediments 16%
• rivers 14%
• economics 12%
• habitats 10%
• synthesis 9%

Earth & Environmental Sciences

• gorge 74%
• restoration 53%
• need 38%
• river 34%
• dam 20%
• dam removal 13%
• cost increase 12%
• fish 10%
• ecosystem 10%
• boulder 10%
• recreation 8%
• corridor 8%
• sedimentation 6%
• demand 5%
• habitat 5%
• pollutant 5%
• economics 5%
• city 5%
• removal 4%
• sediment 4%
• material 3%