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Matching the Hatch

by Fred Rowe, Sierra Bright Dot

+ Please find attached an information flyer concerning the new California Statewide Inland Trout Regulations for the upcoming fishing season (March 1, 2021-Feb. 28, 2022). The flyer is an informational summary of some of the important changes within Inyo and Mono Counties Ca.

It’s both the holy grail of fly fishing and it’s a two-part solution. First, you need to know what the fish is feeding on. Second, you need to have an imitation of the insect that is perfect.

Hatches are seasonal and looked forward to with much anticipation by fly fishers. Here in the Eastern Sierra blue wing olives (BWO) are the first hatch of the season starting in early February. That hatch is followed by caddis, pale morning duns (PMD), little yellow stones, callibaetis, and summer hopper hatches. In the fall fly fishers look for the October caddis, the biggest caddis in the Sierra, and tricorythodes mayflies (Tricos), the smallest mayfly in the Sierra.

Once you have identified the hatch you need an imitation that is a perfect match of the insect. The fly pattern needs to incorporate the size, shape and color of the natural, and needs to be fished the way the insect behaves. Some patterns can be bought off the shelf but other patterns can only be duplicated by tying your own flies.

I got into the fly-fishing industry as a fly tier. I’ve gotten good at tying exact imitations of other fly fishers fly patterns and imitating the insects found in the waters of the Eastern Sierra. I’ve also fished the major hatches in the Sierra with reliable success. I’ve never seen the October caddis hatch in big enough numbers to have the trout feed selectively on them. I’ve fished the Trico hatch a few times with mixed results. Recently I was tapped for my fly tying skills by  a local fly fisher as he was looking for someone to tie a fly pattern that was not available at any of the Eastern Sierra tackle stores.

He had me look at some insects from a stomach pump sample and I recognized them instantly as Trico spinners. I told him I could tie up an imitation if I had a small enough hook. I figured that the natural was a size 28 or 30. The smallest dry fly hook I have is a size 24. There might be a smaller hook, but a size 24 is small.

close up of aquatic insects and artifical fly

Trico Spinner on 24 hook

As you can see in the photo, a size 24 Trico spinner fly tucked in with the naturals from a stomach sample shows that the fly pattern is bigger than the naturals.

I tied up some Trico spinners on the size 24 hooks and took them to the water to test them out. I attached a three-foot section of 6X tippet to my leader and tied a spinner on with a turle knot. I watched several trout rise to insects on the water that were so small I could not see them. I cast over the fish with the confidence that I had the right fly. Cast after cast and the trout were not interested in my fly pattern. Several trout rose to the fly but would not take it off the surface.

close up image of artificial flies for fishing

Two variations of a Trico spinners tied up on a size 24 dry fly hook and an equivalent size 28 nymph hook.

I tried a Hot Creek trick I knew about getting a drag free drift. I cast the fly such that it landed in a puddle of tippet. This allowed the fly to naturally drift down stream. This resulted in several hits and a couple of eight to ten-inch brown trout being fooled. A stomach sample from the brown showed that the naturals were a couple of sizes smaller than my pattern.

close up image of a trout with a fly in its mouth.

A ten-inch brown trout that was fooled by a size 24 Trico spinner that was two sizes too big to match the naturals on the water.

My pattern was close, but it was not perfect so I’m back to the fly-tying table to try and come up with a pattern that is a perfect match. I tied up a few spinners on a scud hook, smallest hook I own, to see if I could get the size right and I need to take them to the water to give them a try.

I only got half of the formula for matching the hatch correct. My insect identifying skills were correct. My fly pattern is correct in shape and color. Size is off by 40 to 60% and is responsible for the fly not being the right fly.

This is the joy of being a fly fisher – fly tier in the Eastern Sierra. I will continue to return to the water until I can get the formula correct. When I do every trout in the creek will rise to take my Trico spinner off the surface.

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3 days ago

Happy Friday! It doesn’t get much nicer than this. Wishing you a wonderful weekend.
❤️ Bishop

#visitbishop #RecreateResponsibly #whitemountains #canalwalk
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Happy Friday! It doesn’t get much nicer than this. Wishing you a wonderful weekend. 
❤️ Bishop 

#visitbishop #RecreateResponsibly #whitemountains #canalwalk

Comment on Facebook

My dream for retirement!

What a beautiful spot! I just love that town...💐

Wish I was there's now...

Thanks for sharing this!! So beautiful 😍

just got home from spending four days there

So beautiful and amazing picture thanks for sharing 🙂🙂❤❤

Beautiful.

See you next week bishop 🤗🤗

Pretty picture!

where is this? Mill Pond?

see you next week.

Buckley ponds?

How much snow does bishop have in winter time?

Beautiful

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4 days ago

Laaaaaabor Day Weekend plans? How about the fair?Oh hey there! 👋 Happy days from a friendly local 🐐 - Looking forward to more interaction with humans. Hope to see you at the Fair! Laaaaabor Day Weekend.

Photo credit: Jeff Simpson
#inyocounty #tricountyfairgrounds
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Laaaaaabor Day Weekend plans? How about the fair?

Comment on Facebook

Wish I could be there! 🤗💞good times

Labor day? Go home goat, you're drunk.

Christina Flores-Hinojosa

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5 days ago

Who’s been up here? The trailhead and campground are clear of snow, the aspen are preparing to grow leaves, and it is BEAUTIFUL!! 🍃😍
(The trail undoubtedly has snow on it, so please be prepared and be EXTREMELY cautious crossing streams this time of the year!)

📷 by Betsy Forsyth
#visitbishop #RecreateResponsibly #mindfultraveler
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Who’s been up here? The trailhead and campground are clear of snow, the aspen are preparing to grow leaves, and it is BEAUTIFUL!! 🍃😍 
(The trail undoubtedly has snow on it, so please be prepared and be EXTREMELY cautious crossing streams this time of the year!)

📷 by Betsy Forsyth
#visitbishop #RecreateResponsibly #mindfultraveler

Comment on Facebook

Yay. Me, me but, oh yeah, not for 45 years.

Yes I’ve been there!

2003, I did this loop, Lamarck Lakes to Evolution Valley to Piute Lake to Trailhead.

Hike to Lamark lake is lagit, straight up the mountain, takes about 3 hours

About 54 years ago. 🙂

I’ve been there years ago

Sara Kvaas

Ben to Paiute pass and beyond many times, no bears there!

Been going to Bishop for years on are way now to Mule Days

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6 days ago

Thank you to the Fairgrounds!!Let's give it up for our local Fairgrounds to step into a summer full of safe outdoor fun; featuring more space for RV and tent camping, plus big events like Mule Days, California High School Rodeo, a Drive-In and Tailgate Concert series - all at the Tri County Fairgrounds, in Bishop! They're planning for a bigger and better year, bigger stage, better sound, bigger acts, and better seats! 🎥🍿--

#inyocounty #tricountyfairgrounds #driveinmovie
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Thank you to the Fairgrounds!!

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Be there soon

That sounds so fun.

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7 days ago

Look at this sweet foal that was born yesterday!! 😍 Quite a Mother’s Day gift!

Photo by Julie Faber
#visitbishop
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Look at this sweet foal that was born yesterday!! 😍 Quite a Mother’s Day gift! 

Photo by Julie Faber
#visitbishop

Comment on Facebook

How cute!

Awww. Congratulations momma

Hi sweet baby.❤️

Sweet baby horse.

Aww adorable

Truly beautiful ....well done Mummy ❤

Beautiful!!!

Beautiful horses!

Que belleza 😊 me encanta todo lo que tenga que ver con los caballos, lindo y hermoso día

Beautiful

Sara Kvaas ... not sure if you follow this page, given how we love Aspendell!

💞

Sweetheart.

So pretty.

So cute

Ohhhh cute!

Awww 🥰

❤️🐎❤️❗️

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