diver.net

Re: Psychology of catching...


dive-instructors.com, the first place to look for a dive instructor


[ Follow Ups ] [ Post Followup ] [ California Scuba Diving BBS ] [ FAQ ]

Posted by Jon on October 21, 2005 at 08:16:01:

In Reply to: Re: Psychology of catching... posted by Chris on October 20, 2005 at 19:09:37:

After a disasterous experiment with a red filter on my light several years back, I googled a marine biologist who'd done some research into lobster's optical acuity and I emailed him for some info.

He said lobsters have very good night vision (as you'd expect), mostly using the shorter (bluer) wavelengths of the spectrum. In other words, they couldn't see our red lights but because they weren't blinded, they could see us coming and spooked.

He suggested white light works better because it overwhelms their optical receptors and they can't see a thing, like a deer in the headlights.

I find it's best to avoid shining the light directly on them until I get close; then I point the light from one direction and grab from the opposite direction.

Also, when I see a bug in the distance, I scan around the area for others before making the grab. Where there's one, there's usually more and often bigger ones.

Lastly, some say HIDs don't work well for lobster hunting but I find they allow me to see substantially further, so I can cover a lot more ground with less effort. I don't lose many bugs due to spooking them -- mostly just to losing my lobster bag :-(.



Follow Ups:


Name:
E-Mail:
Subject:
Message:
Optional Link URL:
Optional Link Title:
Optional Image URL:
Post Background Color: White     Black
Post Area Page Width: Normal   Full
You must type in the
scrambled text key to
the right.
This is required to
help prevent spam bots
from flooding this BBS.
capcha
Text Key:

      


diver.net