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Patuxent Environmental & Aquatic Research Laboratory



The primary goal of Dr. Amanda Knobloch's Biogeochemistry lab is to gain a better understanding of the coastal carbon cycle by studying the quantity and composition of particulate organic carbon, dissolved organic carbon, and dissolved inorganic carbon. Dr. Knobloch's lab is also committed to training the next generation of marine biogeochemists and creating inclusive and welcoming environments in the geosciences.


  • Research Interests:
    • Concentrations and fluxes of particulate organic carbon (POC), dissolved organic carbon (DOC), and dissolved inorganic carbon (DIC) in coastal waters
    • Composition of particulate organic matter (POM) and dissolved organic matter (DOM)
    • Use of water quality parameters to predict carbon concentrations
    • Funded Research Projects:
      • NSF HBCU-UP: Research Initiation Award - Comparing Carbon Fluxes of Tidal Marshes and Oyster Aquaculture Farms in the Chesapeake Bay(PI)
      • Morgan State University's PEARL Lab Student Research Enhancements(Federal Earmark)(Co-PI)
    • Equipment:
      • Carbon, Nitrogen, Hydrogen, Sulfur Oxygen Analyzer(CHNS/O, Thermo Scientific Flashmart 2000)
      • Total Organic Carbon Analyzer with Total Nitrogen Module(Shimadzu TOC-L with TNM-1)
      • Spectrophotometer(Shimadzuc UV-1900i)
      • Automatic Water Samplers(Teledyne ISCO 6712)
      • Acoustic Doppler Current Profilers(ADCP, Sontex SL 1500-3G)
      • Spectrofluorometer(Shimadzu RF-6000)


      Amanda Knobloch

      Program Lead