Owners of shallow lakes and ponds, especially in Northern Indiana, should watch for fish kills this spring due to the harsh winter. The Department of Natural Resources reports with record and near-record snowfalls and ice of up to 20 inches thick in some bodies of water, biologists anticipate significant fish kills once the ice thaws.
The most common cause of fish kills in Indiana ponds is lack of oxygen. Decomposing plants consumes oxygen that fish eat, and since much of the sun is blocked by the ice this season, those plants are producing dangerously low oxygen levels.
Lake residents who observe significant fish kills on public waters should contact their district fisheries biologist found on www.indiana.gov