Macro of the Month – Minnesota Trout Unlimited

What Happens to Aquatic Invertebrates as Winter Sets In?

Macro of the Month – December 2025 December has always been one of my favorite times to walk a trout stream. The leaves are down, the cold air is fresh, and in many of our springfed trout streams across the state, the water is still flowing. When I bend over to...

November 2025 Macro of the Month- Northern Caddisflies

Credit: Kevin Moulton, UT Northern Caddisflies (Family Limnephilidae) Last month, we explored the importance of October foliage after it falls into a stream. Let’s take that further! As leaves fall into cold November water, there’s construction underway beneath the surface. Among the cobbles and leaf packs, case-building caddisfly larvae - members of...