During my 15 years’ experience in diatom taxonomy I studied diatoms from a wide range of water bodies: I analyzed modern diatoms from 105 hard water lakes located in Switzerland covering a total phosphorus gradient from 5 to 505 µg/L.


In summer 2012, Dr. Sonja Hausmann received a subaward from Ecoanalysts Inc., the world largest aquatic bioassessment company, to analyze diatoms (single cellular algae) and soft algae for the EPA National Assessment for Wetlands.

Rates and Services

  • Cleaning of frustules and mounting with Naphrax.
  • Identification of 300 to 500 valves per sample.
  • Image documentation with 5 MB camera.
  • Publication ready graph of results.
  • Slides for presentations.