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Forum: Flies 05-24-2016, 05:52 PM
Replies: 12
Views: 552
Posted By overmywaders
Re: Flies with UV materials

Silver,

As we know from the 2013 study of yearling brown trout, the trout preferred the sticklebacks that had visible UV-reflective markings. ( see Ultraviolet reflection enhances the risk of...
Forum: General Fly Tying Discussions 12-04-2015, 12:12 PM
Replies: 8
Views: 566
Posted By overmywaders
Re: Trout Fishing and the Color of Wet Dubbing

Artificial vs natural body materials should also be considered for dry flies. For example, a Pink Lady with a silk floss body will absorb more water, become translucent, and change in body color to a...
Forum: General Fly Tying Discussions 12-02-2015, 09:26 AM
Replies: 8
Views: 566
Posted By overmywaders
Re: Trout Fishing and the Color of Wet Dubbing

Of note also is that iridescent materials, such as peacock herl, are not iridescent once thoroughly wet. The iridescence is caused by air gaps between the layers of chitin. Fill those air gaps with...
Forum: Fly Fishing How To's 11-26-2015, 09:33 AM
Replies: 27
Views: 1,421
Posted By overmywaders
Re: Trout Vision - How Does a Trout catch a Fly?

Silver,

You have presented some excellent work in the opening posts, except for the UV elements. I certainly appreciate what you have contributed. I learned more than a few things from your...
Forum: Fly Fishing How To's 11-25-2015, 12:10 PM
Replies: 27
Views: 1,421
Posted By overmywaders
Re: Trout Vision - How Does a Trout catch a Fly?

Silver,

You have asked this question before and I have answered it. Just as you have often used poor, uninformed, unscientific, assertions made by others, such as Blanford and Acorn, to imply that...
Forum: Fly Fishing How To's 11-25-2015, 09:36 AM
Replies: 27
Views: 1,421
Posted By overmywaders
Re: Trout Vision - How Does a Trout catch a Fly?

Silver,

I'm glad you slept and recalled the yellow pigments which develop in the human lens (young children can see some UV, however).

The entire article by Simon Blanford is a series of...
Forum: Fly Fishing How To's 11-24-2015, 01:20 PM
Replies: 27
Views: 1,421
Posted By overmywaders
Re: Trout Vision - How Does a Trout catch a Fly?

Silver,

You said


This is misleading as the cones of a trout have a beta peak in the UV wavelengths. What that means is that while (here I will use colors rather than wavelengths) a Red cone...
Forum: General Discussion 09-01-2015, 07:01 AM
Replies: 21
Views: 1,518
Posted By overmywaders
Re: Flies that make you go hummmm

I live in an area where the freestone streams have more caddis than mayflies. A Wright's Royal, which I tie like a Royal Trude without the tail, seems to be a very effective searching pattern in the...
Forum: Fly Lines 01-25-2015, 04:56 PM
Replies: 13
Views: 1,026
Posted By overmywaders
Re: tippet and leaders

You can also use S-casts to give you a longer float. People using fast rods may make their casts too straight, allowing only a short drag-free drift. But wiggle the rod tip to put slack where you...
Forum: Flies 12-28-2014, 12:22 PM
Replies: 34
Views: 1,233
Posted By overmywaders
Re: In need of help

As Foote suggested, when you see a beautiful, half-naked woman holding a fur coat and can only think of the flies you could tie from the fur... you are a fly tier. When your dog and the neighbor's...
Forum: Fly Fishing How To's 11-11-2014, 07:34 PM
Replies: 37
Views: 3,043
Posted By overmywaders
Re: Selectivity - why and how do trout become selective feeders

Would humans do as well as the trout? :)
http://4.bp.blogspot.com/-VnUSSLvBHqg/UEYoFqOYkII/AAAAAAAADPQ/1gjLQM2K0wk/s1600/Pushing+and+Pulling.jpg
Forum: Fly Fishing How To's 11-10-2014, 07:56 PM
Replies: 37
Views: 3,043
Posted By overmywaders
Re: Selectivity - why and how do trout become selective feeders

Silver,

There was a study conducted in 1973 on the conditioned behavior of trout. See A system for the quantitative study of the learning capacity of rainbow trout and its application to the study...
Forum: Fly Fishing How To's 11-09-2014, 07:09 PM
Replies: 37
Views: 3,043
Posted By overmywaders
Wink Re: Selectivity - why and how do trout become selective feeders

Poor old fish, always getting dumped on. :) One writer said of trout "Not sufficiently evolved to burp."

Silver, you said


IMO, fish are as evolved as mammals, in that they have met the...
Forum: Fly Fishing How To's 11-08-2014, 06:43 AM
Replies: 37
Views: 3,043
Posted By overmywaders
Re: Selectivity - why and how do trout become selective feeders

Silver,

Behavior can indeed be passed through the gene pool, if epigenetic inheritance is considered. For example, male mice were conditioned to fear the smell of acetophenone, through giving the...
Forum: Fly Fishing How To's 10-27-2014, 02:52 PM
Replies: 21
Views: 1,705
Posted By overmywaders
Re: More on UV vision and fly tying materials in trout.

Silver,

I hope I didn't offend you in tone or words. I apologize if so, as that was not my intent.

Sincerely,
Reed
Forum: Fly Fishing How To's 10-27-2014, 02:25 PM
Replies: 21
Views: 1,705
Posted By overmywaders
Re: More on UV vision and fly tying materials in trout.

Silver,

You are acknowledging that color is important. UVR to the trout is just one more color. The trout doesn't understand the Electromagnetic spectrum, it just knows what it sees.

If you...
Forum: Fly Fishing How To's 10-27-2014, 06:48 AM
Replies: 21
Views: 1,705
Posted By overmywaders
Re: More on UV vision and fly tying materials in trout.

It mirrors in an impressionist way, many mayflies. Below is the wing of a mayfly in reflected UV.
http://overmywaders.com/images/Siphlonurus_typicus1WB192wingdetail2inC2.jpg

and here is a Light...
Forum: Fly Fishing How To's 10-27-2014, 05:35 AM
Replies: 21
Views: 1,705
Posted By overmywaders
Re: More on UV vision and fly tying materials in trout.

Silver,

We haven't proven that any colors are of importance to trout. We know trout can distinguish color - behavioral tests have established that - but do trout use it in predation? Do trout use...
Forum: Fly Fishing How To's 10-26-2014, 08:23 PM
Replies: 21
Views: 1,705
Posted By overmywaders
Re: More on UV vision and fly tying materials in trout.

Well, I actually have a patent on camouflage in the near ultraviolet that does not alter the visible or NIR appearance. It uses ceramic nanoparticles in a thin film. See UVR Defense Tech...
Forum: General Discussion 10-26-2014, 05:53 PM
Replies: 41
Views: 3,262
Posted By overmywaders
Re: Interesting read on myths

The owner of Sprit River approached me by email some years ago, asking me to proof his understanding of UV. He said he had read my book, but everything he wrote about UV was wrong, which I told him...
Forum: Fly Fishing How To's 10-26-2014, 03:43 PM
Replies: 21
Views: 1,705
Posted By overmywaders
Re: More on UV vision and fly tying materials in trout.

Most sunscreens, a.k.a., sun tan lotion, absorb UV; hence they would make the UV bright areas of the Adams, UV dark.
Forum: Fly Fishing How To's 10-26-2014, 02:29 PM
Replies: 21
Views: 1,705
Posted By overmywaders
Re: More on UV vision and fly tying materials in trout.

Todd,

You asked

As I mentioned

That is the only way I know to determine the effectiveness of UV reflectivity in the flies we tie - examine the patterns that have consistently taken trout...
Forum: General Discussion 10-26-2014, 02:16 PM
Replies: 41
Views: 3,262
Posted By overmywaders
Re: Interesting read on myths

I don't think that any thinking person will say that UVR is the sole reason for a trout to take a fly. However, as documented, the effective flies reflect UV in a manner similar to the natural...
Forum: Fly Fishing How To's 10-26-2014, 09:53 AM
Replies: 21
Views: 1,705
Posted By overmywaders
Re: More on UV vision and fly tying materials in trout.

BigJim,

Yes, of course. For example, the Adams dry has grizzly hackle tip wings which have a superb bright and dark in the UV. The mixed hackle does as well. The body is medium-bright in UV. See...
Forum: General Discussion 10-26-2014, 08:00 AM
Replies: 41
Views: 3,262
Posted By overmywaders
Re: Interesting read on myths

Silver,

As I have mentioned before, we can use modern digital photography to determine the UV reflectance of materials. As a matter of record, there are about 150 UV reflective photos in my book....
Showing results 1 to 25 of 99

 
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