Here is info from the DNR: The seasonal timing, presumed water temperature, and affected species would suggest that a columnaris infection has caused some fish mortality in Spirit Lake. Last Tuesday, we received a similar report of dead crappie, bluegill, and pumpkinseeds in North Spirit Lake. Apparently, the die-off began over the weekend of June 4-5. Fish kills from columnaris rarely affect abundance and size structure at the population level, so there's no need for concern unless rafts of dead fish (1000s or 10000s) start to accumulate on the windswept shores. Thanks for the report. We'll log your observations into our statewide fish kill database. Jeff Scheirer
