DNR fisheries biologists collected fish and water samples at Loon Lake yesterday as the result of a fish kill involving thousands of crappies that began earlier this week.
The lake is located in Whitley and Noble counties.
Samples were provided last week to the Animal Disease Diagnostic Laboratory at Purdue University for testing regarding a cause. Results are not expected for weeks.
Because no significant numbers of other dead small fish species have been observed, the cause is not believed to be the result of a toxic event such as a chemical spill or release.
Biologists will continue to monitor the situation over the coming weeks.