Even though they have left the egg, the larvae are not yet free swimming. Most just flutter to the pond bottom where they will rest for the next couple of days. During this time they will use up the remaining yolk in their egg sack as they develop into a more typical tadpole shape.
not seem to affect hatching at all. Even
so, there were several larvae that emerged on the upper surface of the raft and
seemed in danger not making it down into the water.
No matter where they ended up, all of the egg
masses produced healthy larvae.
pond was ice covered on many mornings during the past two weeks. I imagine the cold temperatures played a part
in the delayed development.
A shortage of rainfall during
March caused the pond water level to drop to record low levels for this time of
year. I was able to maneuver the tree
branch into the deepest part of the pond and the eggs on the branch were spared
exposure to the air.
Most successfully produced salamander larvae,
but a few contained unfertilized eggs that were consumed by fungus.
Now I just have to wait a few weeks for the
larvae to grow large enough for me to see them in the pond. Water won’t be a problem for a while. Thunder storms earlier today dropped 1.2
inches of rainfall and the pond is now near its full level. More storm clouds are hurrying in from the
west and I’m rushing to type this and get it posted before the heavy rain once
again blocks my internet satellite link.
Color and Aroma of Spring
3 hours ago