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.

Mount Deborah and Hess Mountains. Two of the greatest peaks of the Alaska Range rise behind the braided, glacial Susitna River. These massive mountains are 35 miles north of where I took this picture.

From the Susitna River in Alaska

Stream photos

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Zapada cinctipes (Tiny Winter Black) Stonefly Nymph Zapada cinctipes (Tiny Winter Black) Stonefly Nymph

Dorsal view of a Zapada cinctipes (Nemouridae) (Tiny Winter Black) Stonefly Nymph from the Yakima River in Washington

Nymphs of this species were fairly common in late-winter kick net samples from the upper Yakima River. Although I could not find a key to species of Zapada nymphs, a revision of the Nemouridae family by Baumann (1975) includes the following helpful sentence: "2 cervical gills on each side of midline, 1 arising inside and 1 outside of lateral cervical sclerites, usually single and elongate, sometimes constricted but with 3 or 4 branches arising beyond gill base in Zapada cinctipes." This specimen clearly has the branches and is within the range of that species.

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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.

4-day Alaska float trip, pictures.

Troutnut

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Bellevue, WA

Posts: 2758

Troutnut on Aug 1, 2008August 1st, 2008, 11:22 pm EDT

From July 24th to 27th I floated down 50 miles of the Chena River upstream from Fairbanks, Alaska, for my grad school research project. I put some neat pictures up on our project website:

http://www.chenakings.org/2008/08/02/four-day-data-collection-float/

The day my float ended, it started raining and now parts of Fairbanks are about to be declared a disaster area. (One of my friends needs a canoe or waders to get to her cabin.) Some of us went out for work to document the flood in our study area, which is pretty impressive:

http://www.chenakings.org/2008/08/02/the-flood-of-08/

Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist

Wiflyfisher