This slime mold will develop further 'til it looks like a cluster of fuzzy brown cylinders attached to the wood by hair-thin stems.
Surrounded by pseudo nitzschia?
The water sample I collected out of the pond was from an area without anything around it and in direct sunlight. The water was mostly clear- just a little murky with specks of dirt in it.
I gathered this water sample under a group of trees that lined Mill Pond at HCC. The water was very green and I was really happy to get such a protozoa-packed sample.