The Dead Zone, Lake Hypoxia and Anoxia | Ohio Sea Grant

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The Dead Zone, Lake Hypoxia and Anoxia

Low- or no-oxygen conditions negatively affect Lake Erie's fisheries

Lake Erie’s central basin receives nutrient-rich waters from the western basin, resulting in annual low oxygen content near the central basin’s bottom. These low- and often no-oxygen periods, often referred to as “dead zones”, have been known to cause fish kills and changes in fish behavior and are a topic of concern for Ohio Sea Grant.

Results of research related to the dead zone’s causes, impact, size, and frequency are shared with Great Lakes residents by Ohio Sea Grant’s Extension Agents.