The main focus of the Watershed Biogeochemistry Group is to investigate major elemental cycles in streams and their watersheds, particularly carbon, nitrogen, and phosphorus pools and fluxes. We are especially interested in quantifying and characterizing the rich array of organic molecules that exist in stream ecosystems, and serve as the main food source to microorganisms and consequently to all biological communities. Throughout the watershed, water is found in many places beyond stream channels, including aquifers, soils, and sediments. Our biogeochemistry laboratory has the capabilities to perform a wide range of chemistry analyses in water samples from all these places.
Watershed Biogeochemistry Staff
Watershed Biogeochemistry News
![Publication title with image of a mayfly](https://stroudcenter.org/wp-content/uploads/publication-e1554320152730.jpg)
Modifications to simplify an AOC bioassay for routine use by utilities monitoring bacterial regrowth potential in water distribution systems
![Publication title with image of a mayfly](https://stroudcenter.org/wp-content/uploads/publication-e1554320152730.jpg)
Diel fluctuations in bacterial activity on streambed substrata during vernal algal blooms: effects of temperature, water chemistry, and habitat
![Publication title with image of a mayfly](https://stroudcenter.org/wp-content/uploads/publication-e1554320152730.jpg)
Densities of benthic protozoa and nematodes in a piedmont stream
![Publication title with image of a mayfly](https://stroudcenter.org/wp-content/uploads/publication-e1554320152730.jpg)
Measurement of assimilable organic carbon in water distribution systems by a simplified bioassay technique
![Publication title with image of a mayfly](https://stroudcenter.org/wp-content/uploads/publication-e1554320152730.jpg)
Bacterial biomass, metabolic state, and activity in stream sediments: relation to environmental variables and multiple assay comparisons
![Publication title with image of a mayfly](https://stroudcenter.org/wp-content/uploads/publication-e1554320152730.jpg)