of a very vivid colors in earthworms Lumbricidae are magnificent and strange.
The intensity of colors appears not to be caused only by the thin film of mucus
or tissue surrounding the worm. The colors appear only if the earthworm eat the
soil substrate. Iridescence does not create (alone) colors without soil
colors are installed exactly and only in the places where the earthworm has earth
in his body. Careful observation of juveniles (more translucent than adults)
explains a lot on this important point. Moreover, the intensity of the color response,
change and evolve depending on soil quality (with or without mushrooms). The pictures
of vivid color is a mixed result by photophysical and photochemical processes
involved can be overlap. If the colors were only iridescent, they would be
perpetual and invariable on all of the surfaces of all animals. It is the
opposite. Colors vary greatly with the quality of the food. The strongest
colours are only those that appear when I regularly mix fungi in the soil. The
physical and chemical processes seem to be filled be complementary and
additional. The hypothesis of a complex process (physical and chemical) seems here
to be considered. The physical birth of the vivid colors (in the mucus surrounding
the worm) seems correlated to soil substrate in the body of the Lumbricidae. The
thin film mucus (alone, without the substrate) is not sufficient to turn
colors. The spectrum of color seem to be more complex, that only one component of
Iridescence. Then we can say more accurately : irido-bioluminescence.
do you think ?
VERY all best.
From: Geoffrey.Read from niwa.co.nz
To: annelida from magpie.bio.indiana.edu
CC: eric.ambre.jaune from hotmail.fr
Subject: FW: Bioluminescent earthworm in France
Date: Wed, 17 Apr 2013 21:20:36 +0000
Forwarded for anyone interested in the topic to contact the sender.
From: Eric GEIRNAERT [mailto:eric.ambre.jaune from hotmail.fr]
Sent: Thursday, 18 April 2013 3:18 a.m.
To: Geoff Read; Eric GEIRNAERT
Subject: Bioluminescent earthworm in France
Hi, i find VERY strange Bioluminescent earthworm in France!!!
Can you help me with earthworm ?
Look at :
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