Attached is a map of populations of Large leaf pondweed (Potamogeton amplifolius) and also Filamentous algae found at West Hill Pond during our June 21st, 2018 aquatic plant survey. The below photos show what the filamentous algae looks like. The second photo is particularly bad and is from the spot marked with the “severe filamentous algae” green triangle. It’s also one of the spots where we had relatively high nitrate nitrogen during our seepage survey. We are looking into this spot more carefully now as we’ve found for two years now that it has large filamentous algae covering.
The map of located aquatic plants can be downloaded [large file .. 5.5mb] at ..