Dr. Peter Gkonos, retired research scientist and endocrinologist, has come to know the Pennypack Trust through nature photography and his volunteer work as a Stream Keeper. His careful observations of macro-invertebrates in the Pennypack offer insights to the health of the stream and water quality. Peter will give a presentation on his observations through the lens of his camera, his insights as a seasoned scientist, and as a volunteer Stream Keeper.

This lecture is free, but pre-registration is required.

This lecture is part of Pennypack’s Research Lecture Series.