Ecological Limits of Hydrologic Alteration (ELOHA)

This project aims to expand understanding of the relationships between and use, management, flow and water quality that govern the health and resilience of Lake Superior streams in Minnesota under future climate scenarios.  The project will address identified climate adaptation needs by developing models and outreach materials for understanding likely future response of streams to climate and land use change to aid land and water use planning, stream management, restoration, and climate adaptation.

Project activities include:

  1. Development of models that predict stream flow and ecological response based on climate, land use, and other physical inputs
  2. Analysis of flow-ecology relationships
  3. Identification of management strategies to enhance stream resilience based on these models
  4. Development of outreach materials and workshops to inform restoration and management actions.  Information produced by the project is designed to be shared with “decision makers” (defined as those who work on the ground, creating and implementing management strategies).  

ELOHA Project Documents:

Project Data:


This project is a joint project between the Natural Resources Research Institute (UMD), The Nature Conservancy, Minnesota Department of Natural Resources (Minnesota’s Lake Superior Coastal Program), and Minnesota Sea Grant. Funds were provided by the Great Lakes Restoration Initiative and NOAA.


Project deliverables prepared by William Herb, Ralph Garono, Lucinda Johnson, Meijun Cai, Jeremy Erickson, Kristen Blann, and John Jereczek using Federal funds under award Task Order ID: Criteria for Land and Water Management to Sustain Healthy Aquatic Ecosystems in a Changing Climate - NCNP0000-14-01372 from NOAA’s Office for Coastal Management, U.S. Department of Commerce. The statements, findings, conclusions, and recommendations are those of the authors and do not necessarily reflect the views of the NOAA’s Office for Coastal Management or the U.S. Department of Commerce.

Back to top