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Tips to avoid fish kills

Tips to avoid fish kills

  • 9/3/2019 2:33:00 PM
  • View Count 93
Avoiding a fish kill starts with understanding why they happen most often during mid- to late summer. Several factors contribute, but remember fish and aquatic animals like crayfish, frogs and beneficial insects are most vulnerable during hot, dry weather. Usually stream and pond levels are lower, vegetation and algae levels are higher and water temperatures are warmer. These factors combine to reduce dissolved oxygen levels, stressing aquatic animals.
Fish kills illustrate stream vulnerability

Fish kills illustrate stream vulnerability

  • 7/25/2019 2:48:00 PM
  • View Count 355
DES MOINES—Three fish kills reported to DNR in two days illustrate the importance of taking extra caution with chemicals and other pollutants when the weather is hot and dry.
Avoid Late Summer Fish Kills

Avoid Late Summer Fish Kills

  • 9/18/2017 9:08:00 AM
  • View Count 999
Low stream levels, high temperatures and dry conditions set the stage for potential water quality issues and fish kills. Even small amounts of polluted runoff can affect fish and other aquatic organisms under these conditions.
Be careful, late summer is prime time for fish kills

Be careful, late summer is prime time for fish kills

  • 8/24/2016 2:22:00 PM
  • View Count 2992
Unfortunately the end of summer is the worst time for underwater dwellers. In August and September, temperatures are often high, oxygen levels tend to be low and if stream levels are low, fish and other water critters can be especially vulnerable.