Groundwater/ Surface Water Interaction
California State University, Sacramento
Primary productivity and microorganisms
Upon completion of this unit students should be able to:
Identify common microorganisms that serve as primary producers in the hyporheic zone.
Distinguish between fungi, bacteria and protozoa.
Identify respiration patterns and nutrient needs for each group.
Discuss community structure among the various microorganism groups.
1) Jones and Mulholland: pp. 287-303.
2) Murphy, M.L., Primary Production, in, River Ecology and Management Lessons from the Pacific Coastal Ecoregion, ed. by R.J. Naiman and R.E. Bilby, Springer Verlag, pp. 144-168.
3) Chappelle, F.H., 1993, Groundwater Microbiology and Geochemistry: Wiley, NY, pp. 32-50.
Tim's summary of Jones and Mulholland, pp. 287-303:
The author discusses limiting factors for primary production. Based on the, text, how do you suppose these factors change throughout the day? How do they change seasonally? How do changes in these factors affect organisms?
What might the number of bacteria, eucaryotes, archaea, or virus counts in a water sample tell us about potential contamination concentrations in a groundwater sample?
Given the evolutionary sequence of the aforementioned organism series, what might one infer about early primordial groundwater chemistry within hyporheic zones?