Losing Colour Underwater

[finding_time]

finding_time
isn't 300 ft about 90metres?
what were you breathing?
500ft/ 150 metres? same question

al

Yep the dive is around 86m and from memory that dive would have been a 14/50/34 mix of trimix 14% O2 50% helium and 34% nitrogen The late dive by Simon although done on a rebreather would have been about a 8/70/22 and it was to 173m

Kokomo

Yep all you get left with is tone , so nuc-chooks catch more fishermen than fish and any 2 toned gulp should work as well!

ian

[Horse]

Yep the dive is around 86m and from memory that dive would have been a 14/50/34 mix of trimix 14% O2 50% helium and 34% nitrogen The late dive by Simon although done on a rebreather would have been about a 8/70/22 and it was to 173m

Kokomo

Yep all you get left with is tone , so nuc-chooks catch more fishermen than fish and any 2 toned gulp should work as well!

ian

The Nuc Chook should emit its own light so would show up in all its glory no matter what depth????
Works the same as a glowbead

[finding_time]

Yeh half would glow and the other half would be a darker tone, i dont know that the fluro glow would highlight the red part i think it would just be a darker section as the wouldn't be the spectrum of colour to pick up the red from the glow. i still think any 2 tone fluro gulb would work the same! Interesting though!

ian

[gleeeza]

Interesting thread.

I have found a number of nuke chicken plastics diving in around 3-15m. To date I have never seen one glow yet! They may work better at greater depths but 15- 20m is my limit so I don't know for sure. The beads go pretty good though.

In this depth range I call most things green or blue in a sort of black and white way with the exceptions of blue fish like Groper and parrots, but all things red, nothing.....

In mid summer we get Jacks on all the headlands around the mouth of the Richmond and they hide in with schools of silver Drummer. This is in about 3- 10m and for all money they look exactly the same color.

Gleeeza

[TimiBoy]

Do IR or UV penetrate deeper? If a fish could see in those spectra and that light could penetrate, it might be quite pretty down there?

The Sun heats the top 80m or so, that might at least indicate that IR gets that far (radiated heat from a warm atmosphere gets the top 3 mm, thought I'd throw that one in ).

A nuc chook (or any lumo lure) will radiate a tiny amount of light for a short while if you used it in bright sunshine or held it up to a spotty. But that luminescence doesn't last terribly long, as it has no way or manufacturing energy. I doubt it's enough to actually highlight colour though.

Cheers,

Tim

[madmac]

Interesting information, something to think about when selecting lure colours

[tunaticer]

Ok heres a challenge to the deep divers out there. Take down some nuke chooks and lime tigers on a deep dive and see if they do in fact glow with colours down deep or not. You could even try a recharge with a torch down there to see if they hold green and red for long at depths. Seeing lures are dropped quite quickly down the water column it is feasible that some glow still remains as they drop for a few minutes.

Another test would be to take a IR and UV detection device down and see what levels they lose signal at.

edit.
Thinking about this......it is plausible and probably practical to send a submersible camera down with these lures and sensors waving in front of the camera to get a depth reading as well with a lot less risk to a diver.

[netmaker]

hi all,

all very interesting but isn't this all based on the assumption that fish see the same colour spectrums that we do? i remember watching a tv program a while back that showed things from a fish eye view and apparently they see in infra red (if memory serves me right). i remember seeing what looked like a fairly drab coloured looking fish all of a sudden lighting up beautifully when viewed in infra red. i would tend to agree that the colours on plastics are fairly irrelevant excepting those that glow.

my two cents worth