DNR monitoring fish kill at Clear Lake in Steuben County

August 16, 2022

Indiana Department of Natural Resources biologists are investigating the source of a fish kill after about 500 dead fish were found in Steuben County’s Clear Lake.

Several species of fish were found dead between North and Big basins, including rock bass, bluegill, redear sunfish, pumpkinseed, warmouth, crappie, bullheads and bass.

DNR said the fish kill is likely due to natural events, including low oxygen levels. The agency said hot weather, warm water temperatures and calm days lead to low levels of dissolved oxygen in the water. Without dissolved oxygen, fish are unable to breathe and can die rapidly in large numbers.

DNR said biologists will continue to monitor the lake, but the threat to public health is considered “extremely low” for now.

DNR monitoring fish kill at Clear Lake in Steuben County

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