08-11-2010, 01:21 AM
Their claim is bogus. I'm friends with the author of "What Fish See," Dr. Colin J. Kageyama. Red doesn't disappear, it simply turns to gray at about 25 to 30 feet. Of interest is gray scale. We know colors turn gray at the depth past that of color spectrum penetration but . . . the does not mean that fish can't discern different colors, it simply means the colors are no longer a vibrant range of the natural spectrum of daylight above water. Colors that are still in their active or vibrant range should key fish easier then those that have turned gray. A theory is that all colors are still different at depth below the light penetration, simply in gray scale much as a black and white television shades each color in the spectrum differently.
To test this theory fish with red lures at 90 feet when Kokanee are in spawning colors. Match the red of the Kokanee and watch for violent hits.![[Image: bobwink.gif]](http://www.bigfishtackle.com/images/gforum/bobwink.gif)
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To test this theory fish with red lures at 90 feet when Kokanee are in spawning colors. Match the red of the Kokanee and watch for violent hits.
![[Image: bobwink.gif]](http://www.bigfishtackle.com/images/gforum/bobwink.gif)
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