One aspect of Daphnia that gave me pause, on the video front, is their
see-through nature. Apparently, however, it is possible to colour the
Daphnia by feeding them coloured food (makes sense, since they’re
see-through). I found this tantalizing snippet on google: “Eating the
stained yeast will color the Daphnia red. For changing other Daphnia to
different colors, prepare the yeast solutions with different stains or
…” but unfortunately I don’t have access to the actual page because it’s
through a subscription site. I found another
question and answer
page that talks about feeding them paprika.
Here’s
an article that suggests basically dipping them in a dilute dye solution.
And
here’s
a page that does specifically mention dyeing the yeast with a red food
dye.
Here’s
someone asking about using something to permanently stain their carapace,
which might be a good plan, since I suspect the food moves in and out
fairly
quickly.
posted at 14:51 on Mon, 04 Dec, 2006 |
path: /school
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