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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.

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.
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 5th, 2020
This long day trip from home to the Olympic Peninsula was primarily an attempt to dig a geoduck, a Pacific Northwest delicacy and the largest species of burrowing clam. I built a special tool to help dig them up from 3 feet under the sediment in the tidal flat off the Dosewallips River estuary, where the big clams are exposed only during the lowest tides of the summer. They're apparently located among the eelgrass at this beach by locating where they spurt jets of water 5-10 feet into the air as the tide recedes or rises. Unfortunately, I didn't see a single jet of water nor any other sign of a geoduck, even with the tide dropping to -2.8 feet.

My consolation prizes were some delicious steamer clams (manila clams), an easy find higher in the tidal zone, and some bugs to photograph from a short sampling stop upriver.

Photos by Troutnut

Closeup insects by Troutnut from the Dosewallips River in Washington

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Wbranch
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York & Starlight PA

Posts: 2635
Wbranch on Jul 16, 2020July 16th, 2020, 1:38 am EDT
Wow, what a great looking pool! You should of fished there awhile.
Catskill fly fisher for fifty-five years.
Troutnut
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Administrator
Bellevue, WA

Posts: 2758
Troutnut on Jul 16, 2020July 16th, 2020, 5:44 pm EDT
I had brought fly fishing gear, but we had to get back. This part of the Olympic Peninsula doesn't have much resident trout fishing, as far as I know. It's almost completely a sea-run fishery and the run wasn't in yet.
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist

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