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Lateral view of a Male Baetis (Baetidae) (Blue-Winged Olive) Mayfly Dun from Mystery Creek #43 in New York
Blue-winged Olives
Baetis

Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.

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.

Updates from January 31, 2007

Closeup insects by Bnewell from Crazy Beaver Spring in Montana

Updates from January 12, 2007

Videos by Troutnut from Mystery Creek #19 in Wisconsin

Winter trout at a spring creek's mouth

In mid-January I visited a spot where a heavily spring-fed tributary feeds into a river without much as much spring flow, creating an area of (in the winter) warmer water where hundreds of brookies were stacked up.

The video quality's as lousy as in all my early videos, but it's still amazing to see so many brook trout in such a small spot.

Underwater photos by Troutnut from Mystery Creek #19 in Wisconsin

I was able to photograph these young yearling brook trout from a distance in the crystal clear water of a small spring.  When I tried to get closer, they all hid in the lush vegetation.

From Mystery Creek # 19 in Wisconsin
Several brookies gather in a warm tributary to a trout stream in the winter.  This is the same location as many of the other brookie school photos on this site, but it's a couple generations later.

From Mystery Creek # 19 in Wisconsin

Updates from November 29, 2006

Closeup insects by Bnewell from Crazy Beaver Spring in Montana

Siphlonurus occidentalis (Siphlonuridae) (Gray Drake) Mayfly Nymph from Crazy Beaver Spring in Montana
This species emerges very late in the fall often along with Siphlonurus autumnalis just before ice forms on edges of streams.
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