NANFA-- Daphnia
Wed, 3 Mar 2004 14:53:21 EST

Just a quick note on bug collecting here in SW Idaho. I've been collecting
daphnia and glass worms throughout this winter from a shallow [5'-6' deep] pond.
The ice finally melted off the pond about a week and half ago and we've
consistently had daytime high temps in the mid to upper - 40's and nightly lows
from the mid - twenties to very low thirties. Anyway, starting with my
collections last Saturday and again last night, many of the daphnia have "egg sacks"
and by the time I got home with the daphnia and dipnetted them from my
collection bucket into my aquariums and I noticed dozens to hundreds of small 'specs'
which turned out to be newly hatched baby daphnia. It would appear that here
in Idaho, we're going to have a good, early year crop of young daphnia. Does
anyone know what the average life span of daphnia is and/or if they reproduce
more than once?

Bruce Scott
Meridian, Idaho
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