In the Middle Patuxent – Day 2
/We set up for the macroinvertebrate identification and quality assessment: collection bins and buckets and nets at the river level then tables with identification and analysis materials to the side of the trail.
The students took pictures of the critters during the field trip. I let them borrow my clip-on macro lens. One girl had a very steady hand and took video of one showing gill movement. I took my pictures after the students headed back to school. Here are some my favorites.
A lot of dragonfly larvae…different instars and species
Another dragonfly larvae – one that seems to like this particular stretch of the Middle Patuxent. We’ll see if we find any upstream in day 3.
Several different pictures of the same damselfly larvae. We use ice cube trays to separate the critters while we are identifying them…they are ‘macro’ but not very big!
Two different kinds of mayfly larvae.