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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.

Dorsal view of a Sweltsa (Chloroperlidae) (Sallfly) Stonefly Nymph from the Yakima River in Washington
This species was fairly abundant in a February sample of the upper Yakima.
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.

By Troutnut on July 1st, 2013
I recently spent a day up the Chena fishing for grayling and teaching a vacationing wildlife biologist how to fly fish. She became proficient quickly and caught her first grayling in a pool by the road during casting lessons. We then bushwhacked into some out-of-the-way spots where we both caught many fish.

Throughout the day the Chena valley was shrouded in smoke from the 30,000-acre Stuart Creek #2 forest fire burning about 7 miles south of the river. The same drought that fueled the fire had the river lower than it ever gets in most years. This made for easy wading and excellent grayling fishing, because the lower water concentrates the fish in even more predictable places than usual.

Trout often become more wary and choosy under such conditions, and the grayling were showing signs of those symptoms too. They were still grayling, however, and accommodating their whims meant switching from my gaudiest attractor fly to something a little more subtle... not downsizing to a size 22 midge pupa as one might be forced to do for spring creek trout.

At one point, I had several nice grayling in a 5-foot stretch of a current seam rising every second or two, a rare sight on any Alaskan river where hatches are typically sparse. I drifted my size 14 royal doublewing (a LaFontaine creation sort of like a royal trude, and a dynamite grayling fly) over them a dozen times, drawing a few looks but no takes. Might I actually have to match a hatch to catch grayling? I saw nothing emerging and their rise forms said "spinner fall" (or something like it), so I tied on a size 16 Galloup's cripple (basically a rusty spinner with one wing and a crooked body). I caught six nice grayling on six solid takes in about six casts.

Hatch-matching for grayling apparently angered the thunder gods, who responded to my success with a bright flash and a boom that rumbled back and forth between the nearby mountains for several seconds. The surprise lightning right above us chased us off the water and back to the car via a half-mile hike through a tamarack bog criss-crossed with fragmented moose trails. We reached the car just as the drizzle turned to a downpour.

The nice thing about Alaska's 24/7 summer sun is that when weather interferes with your plans "midday," you can look at the clock and realize it's actually already mid-evening. Rather than wait out the storm and fish until the "oops, it's midnight already?" moment, we headed back to town for a burger, smelling of smoked DEET... just another day in Fairbanks!

Photos by Troutnut from the Chena River in Alaska

Angel Rocks in smoke

From the Chena River in Alaska
This old grayling had some serious battle scars on its dorsal fin, something I've never seen before catching many hundreds of fish.
The Chena River in Alaska
The Chena River in Alaska
The Chena River in Alaska
This nice grayling (about 17 inches) was the lone resident of a deep, practically still-water pool in a low-flow side channel of the upper river. 

I coaxed it out with a risky sidearm cast into a narrow window under some low-hanging brush, a feat about which I must brag to make myself feel better about my next several attempts at impressive casts, all of which resulted in wading across the river and spoiling the pool to retrieve the fly from a tree.
The Chena River in Alaska
The Chena River in Alaska

Comments / replies

Martinlf
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Moderator
Palmyra PA

Posts: 3047
Martinlf on Jul 13, 2013July 13th, 2013, 1:43 pm EDT
Gorgeous fish, Jason.
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell
Jmd123
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Oscoda, MI

Posts: 2474
Jmd123 on Jul 16, 2013July 16th, 2013, 7:32 pm EDT
Absolutely beautiful Jason, fish and everything else. Is that a lot of Sitka spruce I am seeing? My favorite tree from Oregon...

Jonathon
No matter how big the one you just caught is, there's always a bigger one out there somewhere...
Adirman
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Monticello, NY

Posts: 479
Adirman on Jul 17, 2013July 17th, 2013, 3:42 am EDT
Must take some getting used to though, with 24/7 light, hard to sleep at "night" is it?
Troutnut
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Administrator
Bellevue, WA

Posts: 2758
Troutnut on Jul 17, 2013July 17th, 2013, 10:55 am EDT
I have no trouble sleeping when it's light at night, and find it no more difficult than taking a nap during the day. Some people have to sleep with masks or block out all the light in their room, though.
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist

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