Sketching and Dissecting

In the Dissection & Scientific Drawing club this week we dissected perch, a member of the bony fish class. Perch are common in the Schuylkill -- we catch them often in fishing camp -- and it was exciting to get the chance to examine the specimens inside and out.

After observing and sketching the outside of the fish, we cut open the side to reveal familiar structures such as the liver, stomach, and intestine, as well as new structures such as the swim bladder, gills, and gastric ceca. Several students ended by dissecting the eyes and removing the lens, as seen here. Next week, earthworms!