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On 10/30/2017 at 6:39 PM, aarchdale@coresleep.com said:

The theory is that they dont see the red line because it is the first color in the spectrum to go away as you go down.  At least thats what they teach in scuba classes.  I could see things that were solid red no problem down deep.  Never took any fishing line down to test out that theory

Red turns black in the clearest water at around 18 ft. The only visible colors in natural lighting at that depth and deeper are blue, yellow, and green. Even in clear water. The more stained the water the quicker the color goes.

That is the way I understand it. So red line turns black, translucent red turns a grayish. Do the fish care...?

 

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1 hour ago, aarchdale@coresleep.com said:

 I do not believe they acre one bit I have never had afish try to take a line from me. Only hit I have  gotten on the line was from bats at night. That alone should tell you something about what fish see and feel. It should be aclessoni  io  anyone about line. If the bat can feel it bettef believe the fish can. It is like a string between two tin cans vibrations travel up and down it 

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19 hours ago, dan hufferd said:

Red turns black in the clearest water at around 18 ft. The only visible colors in natural lighting at that depth and deeper are blue, yellow, and green. Even in clear water. The more stained the water the quicker the color goes.

That is the way I understand it. So red line turns black, translucent red turns a grayish. Do the fish care...?

 

Northland Tackle recently posted a shot video on its Facebook page (or at least, I saw it on my FB page when it was posted) that shows how colors change as they go down in depth.  I found it interesting, to say the least.  Of course, the kicker is that the way humans perceive color may well be different from the way fish do. Also, it comes back to the question of whether or not the fish really give a rip about a line leading to something they want to eat.  

I think it has more to do with how the line controls the movement of the bait/lure than the color. Stiffen line may well dampen the movement of a bait or lure than a softer, more flexible line.  Dunno, y'know. 

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Many years ago the old time fishermen knew that fish could ferl your line through their latersl line. A lot of them rejected the early Garcia reels because they sid they were noisy. when you feel a tap on your rod of a fish or a snag it was transited up the lihecto you., In some case like crank baits the noise coming up the line may even attact the fish. The whole thing with me about color and lines is if you like it usevit because it will effect you mentally. My o ly objectio to all this is mostly it is about nothing more than sales 

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As for fish seeing things "differently" than humans, as I've said before, physics is physics.  Light waves act the same no matter what kind of eyes are looking at them, and fish have the same kind of structures in their eyes to perceive color that we do, except that their structures are probably sensitive to wavelengths going a little more into the ultraviolet.  So what we see when underwater is more or less what they see, except they may see ultraviolet that we don't.

The difference is, they don't have the mental acuity to understand as much about what they are perceiving, both with their eyes and their lateral line, hearing, and smelling.  Which means that probably MOST of them don't associate line with danger, even though there's no doubt they can see the line.  MAYBE they can learn to associate line attached to something they want to eat with the unpleasant experience of being caught, after they've been caught and released a few times.  But that doesn't necessarily mean that a thinner or less visible line will "fool" them better, since they can almost certainly see 4 pound test mono just as well as they can 8 pound test.  I agree that thinner line probably makes a lot more of a difference in how the lure or fly acts than it does in how visible it is to the fish. 

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These tests show line that is below the water line end to end. I am curious if the line transmits light from the sun from above the water similar to the effect of a glow stick, down to the bait. The argument of red transferring less ofthe the light would seem plausible.  

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13 hours ago, Al Agnew said:

As for fish seeing things "differently" than humans, as I've said before, physics is physics.  Light waves act the same no matter what kind of eyes are looking at them, and fish have the same kind of structures in their eyes to perceive color that we do, except that their structures are probably sensitive to wavelengths going a little more into the ultraviolet.  So what we see when underwater is more or less what they see, except they may see ultraviolet that we don't.

The difference is, they don't have the mental acuity to understand as much about what they are perceiving, both with their eyes and their lateral line, hearing, and smelling.  Which means that probably MOST of them don't associate line with danger, even though there's no doubt they can see the line.  MAYBE they can learn to associate line attached to something they want to eat with the unpleasant experience of being caught, after they've been caught and released a few times.  But that doesn't necessarily mean that a thinner or less visible line will "fool" them better, since they can almost certainly see 4 pound test mono just as well as they can 8 pound test.  I agree that thinner line probably makes a lot more of a difference in how the lure or fly acts than it does in how visible it is to the fish. 

check this out, fast forward to about 4 minutes in keep watching the guy in the back of the boat.It was an accident, but goes with this topic. 

 

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We can go on and on about all the cariteristics of what fish see or react to. Then all of a sudden you have a experience that defies all logic . I have seen it tooo many times these last 75 yrs. It is fun and informative to have these discussions but I clear my mind of all the logic iwhen I pick up my fishing rod. 

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