almost 6 years ago
I finally got round to getting my Missisippi river water sample under a microscope. Nothing - just a lot of silt particles, then this came into view. A Paediastrum colony, about 65 microns diameter. Paediastrum is a genus of green algae, common in freshwaters. Just one dot of the vast mass of microscopic plankton that continually travels down the Mississippi catchment and out into the Gulf of Mexcio.