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Matching the Hatch

by Fred Rowe, Sierra Bright Dot

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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16 hours ago

If you plan to be in the area at the end of March, grab your tickets to this event early - it is usually a full house! Hosted by Inyo Council for the Arts, it is two evenings of adventure, culture, art, and good causes. Each night features different films - so get tickets for both 😁.Tickets for the 2019 Banff Film Festival go on sale February 18th! Tickets are $15 per night and are available at Eastside Sports and Inyo Council for the Arts in Bishop and Booky Joint in Mammoth Lakes. ******NOTE: Due to non-cooperation by the weather, tickets may not be available at Booky Joint on February 18th. We are working on getting the tickets up there as soon as possible. Thank you for your understanding and patience! Tickets will still be available on the 18th at Eastside Sports and ICA, and by calling ICA.****** Ignite your passion for adventure, action, and travel! This year’s exhilarating and provocative films explore remote landscapes, highlight mountain cultures, and feature exciting adventures and adrenaline-packed sports. The festival will take place Friday, March 29th, and Saturday, March 30th. Screenings are in the Charles Brown Auditorium at the Tri-County Fairgrounds in Bishop. Doors open at 6pm, films start at 7pm, with different films shown each night. Banff Centre Mountain Film Festival is brought to the Eastern Sierra by Inyo Council for the Arts. For more information and tickets, call Inyo Council for the Arts at 760-873-8014 or visit www.inyo.org. ... See MoreSee Less

If you plan to be in the area at the end of March, grab your tickets to this event early - it is usually a full house! Hosted by Inyo Council for the Arts, it is two evenings of adventure, culture, art, and good causes. Each night features different films - so get tickets for both 😁.

18 hours ago

In town for the weekend? Don't forget to check out our great local merchants and galleries, including this new one on Main Street. Find more here: www.bishopvisitor.com/activities/arts-photography/ or stop by the Visitors Center at the Bishop City Park, across street from Schat's Bakkery! ... See MoreSee Less

In town for the weekend? Dont forget to check out our great local merchants and galleries, including this new one on Main Street. Find more here: https://www.bishopvisitor.com/activities/arts-photography/ or stop by the Visitors Center at the Bishop City Park, across street from Schats Bakkery!

2 days ago

Hello friends and fans of the Eastern Sierra! The Bishop Area Chamber of Commerce & Visitors Bureau will be participating in the 2019 LA Travel & Adventure Show this weekend at the LA Convention Center! We hope you'll stop by our booth to pick up a free visitor guide. The first 150 people to use our promo code, VIPBSHP, will receive a free ticket to the show! Visit LATravelShow.com to get your ticket! ... See MoreSee Less

Hello friends and fans of the Eastern Sierra!  The Bishop Area Chamber of Commerce & Visitors Bureau will be participating in the 2019 LA Travel & Adventure Show this weekend at the LA Convention Center!  We hope youll stop by our booth to pick up a free visitor guide.  The first 150 people to use our promo code, VIPBSHP, will receive a free ticket to the show! Visit LATravelShow.com to get your ticket!

 

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The Chuck and Joe show is always good. My two favorite Chamber hosts.

I've got go to my OSHA 30 training CLASS otherwise I would be interested!

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