Our salmon eggs are now very active alevins. Notice their large egg sacs attached to their undersides that provide nutrients until they can feed on their own in the wild. It will be fun to see their development after Thanksgiving break!
Last week we received our rainbow trout eggs from the Oregon Dept. of Fish and Wildlife. The eggs originated from the Roaring River fish hatchery near Scio, Oregon. It did not take the eggs long to hatch. We were greeted this morning with two incubators full of 500 smiling alevins (trout with egg sacs attached) and all seem to be doing well. Over the next month students will study how trout (and other organisms) survive in ecosystems as how organisms’ external structures their functions help aid survival. More pics coming soon!
Our alevin friends have grown a bit since the last video clip. All along, we have been learning about salmon survival rates, external features, and life cycles. Students have started research about salmon species will be writing reports after Thanksgiving break. In December we have some exciting plans regarding learning about stream surveys and stream engineering as well as releasing our finned friends.
All of our eggs have hatched in both of our incubators. Our students have noticed that the alevins behave differently between both incubators as one has more gravel spread out than the other.
Some salmon eggs in both of our classroom incubators are beginning to hatch. Take a look at a few of our new alevins!