Stoneflies are vital ecological indicators of North Shore rivers and streams. Beyond their role as indicators, stoneflies are a cornerstone of the aquatic food web. They serve as a favorite food source for various fish species and are highly valued by fly anglers. Discover the significance of these often-overlooked insects as key players in the dynamic world of freshwater ecosystems, providing a reliable and nutrient-rich year-round food source for aquatic life.

Enjoy learning from Cook County local Kalli Hawkins who is a reporter/producer for WTIP and is also a writer, and photographer who specializes in adventure, outdoor education, and gear reviews.

North Shore Chapter of the Minnesota Master Naturalists 

Questions Asked:
  • What are the predators?
  • What size do they start and grow to?
  • When in the water do they use a cast to change?
  • Are these found in all rivers in Minnesota? Only trout streams? What about where trout are being reintroduced
  • Do they tend to be still when you flip them over or flip an item over that they are on?
  • Are stoneflies found in the driftless region?
  • Looking at the antenna in the front and back?
  • They don’t run away (or move slowly)?
  • How fast do they move?
  • Are they the main food source for trout?
  •  Are there dozens or hundreds of different species?
  • Can we eat them?
  • Do stoneflies have gills like some mayflies?
  • What do they do in the winter?
  • Do any of you tie flies?
  • Are they related to damselflies or mayflies? The nymph looks so similar.