any scientific fishermen out there?

[Hiss]

I have a type of line on my carp reels called 'Red Mist' with thePR line being...Red is the first tone to disappear in the colour spectrum, making Red mist almost invisible in water.
I don't doubt this statement at all, but my question is ~ would this red colour supposidly become almost invisible at a certain depth of water or would it be almost as soon as immersed?
hope somebody can help.

[sifellis]

i suppose it you'd have to ask 'invisble to whom?'

As far as i've always understood, fish cannot see red light, whether that means that the line would become 'effectiveley' invisible to fish....i don't know.

I did have a pair of fins i used when scuba diving and they were black with red writing and i could read the red text at a depth of about 30 metres.

[Hiss]

ok, thanks for that mate.

[dragonchild1]

Red light has a long wavelength so is absorbed quickly by water. Blue light has the shortest wavelength so can travel the furthest into water - this is why water looks blue.

The red line, would gradually dissapper the deeper it got in the water because the amount of red light to reflect off it would decrease with depth.

Lot's of fish living at extreme depths of the ocean are also red so that they cant be seen by preditors

Hope this helps :-)

[Hiss]

great answer, i'm happy with that. thanks dc1