[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Killietalk] Peat incubation
I recently went through some old (past due or redried) bags of peat and rewet
them in the hope of late blooming fry. One bag of Simpsonichthys constanciae
eggs which did not hatch when first tried, and still yielded no fry. However a
number of Cyclops of a small size hatched. Apparently the eggs were still
viable in the peat after wetting, drying and rewetting. I should also mention
that the peat had dried a bit more than I prefer in this case. Usually the peat
is damp enough to be easily rewet, but in this case it floated for a day or
more before completely sinking. The Cyclops hatched soon after immersion.
Now today, I wet some peat containing (I thought) Austrolebias
nigripinnis eggs. After a couple hours there quite a few medium sized (about 1 mm
diameter) Daphnia swimming in the water. How can they be that large (these are
probably pulex)? No fry have hatched yet.
I would imagine this same phenomenon occurs regularly in nature. If you
need to get a starter for Daphnia or Cyclops, try some of your peat that you
put away thinking you were investing in annual killifish futures.
Join the AKA at http://www.aka.org/aka/modules/content/index.php?id=9.
Archives are at http://fins.actwin.com/killietalk/
Modify your subscription at http://www.actwin.com/mailman/listinfo.cgi/killietalk