Some of our Salmon eggs have hatched into the alevin stage (aka yolk- sac fry). The eggs lie in the gravel through the winter, as the embryos within develop. In early spring, yolk-sac fry, or alevins, hatch. The tiny fish carry a food supply (a sac of egg yolk) attached to their bellies. They will not leave the protection of the gravel until the yolk is used up, 12 weeks or more. At that point we will be able to release them.
he's right, its pretty cool. we are keeping track of them.
Reply
birdie
11/7/2012 08:26:30 am
it is pretty cool
Reply
jett
11/8/2012 02:14:43 am
bird?
Reply
Sean Ferrarese
11/20/2012 04:22:29 am
Just found out from the Oregon Dept. of Fish and Wildlife that we can release our salmon babies in the Coast Fork of the Willamette River right here in Creswell.
Reply
birdie
12/1/2012 03:48:48 am
yes jett it is me
Reply
Leave a Reply.
Author
Sean Ferrarese teaches fifth graders in Creswell, Oregon and Urban Farm students at the University of Oregon (LA390)