Tuesday, April 16, 2013

BJM Stream Studies - April, 2013

4th Graders at BJM learned to assess the health of a stream by looking at the insects and other INVERTEBRATES which live there.  Using dichotomous keys and their knowledge of insect anatomy, these young scientists identified 26 different types of insect larvae- and a few crayfish- living in samples collected from Enfield Creek.

Then we fed a few to our hungry trout!

Very Cool!  Thanks Ms. Barley for setting this up!

Wednesday, April 3, 2013

Charting Trout Growth

LACS interns Francesca and Eddie help students plot the growth of their trout..
 Students remove individual trout for measurement, placing them in a petri dish, over graph paper.

 Minimum, Maximum and Average sizes are plotted every two-three weeks.