Lateral view of a Female Hexagenia limbata (Ephemeridae) (Hex) Mayfly Dun from the Namekagon River in Wisconsin

Hex Mayflies
Hexagenia limbata

The famous nocturnal Hex hatch of the Midwest (and a few other lucky locations) stirs to the surface mythically large brown trout that only touch streamers for the rest of the year.

Stream photos

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Isoperla (Stripetails and Yellow Stones) Stonefly Adult Isoperla (Stripetails and Yellow Stones) Stonefly Adult

Dorsal view of a Isoperla (Perlodidae) (Stripetails and Yellow Stones) Stonefly Adult from Mystery Creek #308 in Washington

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27" brown trout, my largest ever. It was the sub-dominant fish in its pool. After this, I hooked the bigger one, but I couldn't land it.

Troutnut is a project started in 2003 by salmonid ecologist Jason "Troutnut" Neuswanger to help anglers and fly tyers unabashedly embrace the entomological side of the sport. Learn more about Troutnut or support the project for an enhanced experience here.

Pictures of Fish Underwater

Underwater photos of fish other than salmonids.

Here's the head of a sea lamprey which migrated up the Delaware River to spawn.

Here's the body of a sea lamprey which migrated up the Delaware River to spawn.

Several small minnows (bluntnose minnows, maybe?) mill around in this still backwater of a small trout stream.

A large schools of white suckers travels the headwaters of a famous midwestern trout stream.

A school of large common shiners feeds in a frenzy on Tricorythodes mayfly spinners which were all over the surface on this July morning.

A sculpin hides under a rock. The camouflage is amazing.

There's one small brook trout running with this school of minnows at the head of a crystal clear spring.

There's a brook trout running with this school of creek chubs and common shiners at the head of a crystal clear spring.

This stickleback lost fear of the camera after I held it still long enough in the icy water.

Here a stickleback investigates a little piece of grass in the slack water of a beaver pond on a remote stream rumored to have been great for brook trout at one time. It's now a swampy hellhole ruined by silt-trapping beaver dams, and I found no trout. Wading it in early April, when the ground was only half-frozen, was a nightmare.

A small creek chub hides behind a rock under a cut bank.

Hex MayfliesHexagenia limbata

Pictures of Fish Underwater

Pictures of Fish Underwater

Hex Mayflies
Hexagenia limbata