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Mysis Shrimp fly pattern
Nymph · #135 of 382

Mysis Shrimp

Imitates: Mysis shrimp (freshwater opossum shrimp)

Quick Reference

Best Sizes
#16-20
Best Season
Year-round on Mysis tailwaters
Best Conditions
Tailwaters below reservoirs stocked with Mysis (Frying Pan, Taylor, Blue, Green)
Water Temp
Below 50°F
Recommended Tippet
6X fluorocarbon

How to Rig It

Single fly or trailer behind a small midge. Fish a dead drift right where the dam outlet enters the river.

How to Present It

Dead-drift slow and deep through the top quarter mile below the dam, where stunned shrimp pour through the turbines.

Why It Works

On tailwaters that have Mysis-stocked reservoirs above them, dead shrimp pour through the dam 24/7 and grow trophy trout. Nothing else looks like a Mysis.

History

Mysis shrimp were stocked as forage in Western reservoirs starting in the 1960s. The trout below those dams grew enormous, and the Mysis fly was born to match.

Pro Tip

Fish white and pearl in clear winter water. The closer to the dam outlet, the smaller the fly — water-stressed shrimp shrink as they tumble downstream.

Frequently Asked Questions

Where do Mysis shrimp flies work?+

Only on tailwaters below Mysis-stocked reservoirs. The Frying Pan in Colorado is the most famous Mysis fishery in the world.

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