Dr.
Clifford A. Ochs
Here
I am with my class - Aquatic Microbiology
(We've
been in the lake sampling methanogens)
Address: Department
of
Biology Phone:
662-915-7562
University of
Mississippi
FAX:
662-915-5144
University, MS
38677
e-mail: byochs@olemiss.edu
RESEARCH
INTERESTS
Population dynamics and ecological interactions of aquatic
microorganisms.
Effects of the light and chemical environment on aquatic
microbial community
structure and function.
Nutrient biogeochemistry in aquatic and terrestrial ecosystems.
Our lab is
engaged in
various studies in the areas of aquatic ecology and biogeochemistry. Broadly speaking, we are
investigating
connections between the abiotic environment, plankton community
composition and
activities, and biogeochemical cycles involving nitrogen, phosphorus,
and
carbon. Our
research is focused mostly
on aquatic habitats of northern Mississippi including oxbow lakes,
various
wetland types, reservoirs, the Mississippi River itself, and even flooded agricultural fields in the
Mississippi Delta. Funding
to support
our work comes primarily from the National Science Foundation, the
Environmental Protection Agency, and the Department of Agriculture.
For
a recent presentation describing our research activities click HERE
CLASSES I TEACH
AT THE UNIVERSITY OF MISSISSIPPI
Aquatic Microbiology
(BISC 505)
Microbial Ecology
(BISC 522)
Research Methods in
Biology (BISC 300)
Freshman Biology
(BISC 102, 104)
SELECTED
PUBLICATIONS
Canion, A.K. and C. Ochs. 2005. The
population dynamics of freshwater armored dinoflagellates in a small
lake in Mississippi. J. Freshwater Ecology 20: 617-626.
Hwang, H-M, N. McArthur, C. Ochs, and B. Libman. 2004. Assessing interactions of multiple agrichemicals by using bacterial assemblages in a wetland mesocosm system. Int. J. Environ. Res. Public Health 2: 84-90.
Ochs, C.A. and S.A. Milburn. 2003. Effects of
wintertime flooding to
control erosion on selected chemical and microbial properties of
agricultural
soils in the Mississippi Delta. J. Mississippi Academy of Sciences 48:
102-114.
Ochs, C.A. 2002. Planktonic microorganisms: bacterioplankton, p. 2519-2539. In G. Bitton [ed.], Encyclopedia of Environmental Microbiology, John Wiley, N.Y.
Pezeshki,
S.R., R.D. DeLaune, W.J. Catallo,
J.A. Nyman, C.A. Ochs, S.A. Milburn,
J.M. Melack, L. Mertes, L. Hess, and B. Forsberg. 2003.
Wetland
biogeochemistry, p. 125-156 In: M. Holland and L.
Shaffer, Proceedings
from the Center for Water and Wetlands Research Conference, Oxford, MS.,
Island
Press.
Rhew, K., and C.A. Ochs. 2000. Spatial patterns in autotrophic picoplankton abundance in a reservoir examined using microcosm experiments. Internat. Rev. Hydrobiol. 85 (4): 395-412 .
Rhew, K., R.M. Baca, C.A. Ochs, and S.T. Threlkeld. 1999. Interaction effects of fish, nutrients, mixing and sediments on autotrophic picoplankton and algal composition. Freshwater Biology. 42:99-109.
Ochs, C.A. and L. Eddy 1998. Effects of UVA on grazing pressure of a marine heterotrophic nanoflagellate on the unicellular cyanobacterium Synechococcus spp.. Appl. Environ. Microbiol. 64: 287-293.
Ochs, C.A. and K. Rhew. 1997. Population dynamics of autotrophic picoplankton in a southeastern U.S. reservoir. Internationale Revue der gesamten Hydrobiologie 82: 293-313.
Ochs, C.A. 1997. Effects of UV radiation on feeding by two marine heterotrophic nanoflagellates on autotrophic picoplankton. Journal of Plankton Research 19(10): 1517- 1536.
Hwang, H-M, N. McArthur, C. Ochs, and K. Overstreet, Jr. 1997. Assessing interactions of multiple agrichemicals by using bacterial assemblages in a wetland mesocosm system. Proceedings of the twenty-seventh Mississippi Water Resources Conference.
Ochs, C.A. J.J. Cole, and G.E. Likens. 1995. Population dynamics of bacterioplankton in an oligotrophic lake. Journal of Plankton Research 17(2): 365-391.
Cole, J.J., N. Caraco, D. Strayer, C.A. Ochs, and S. Nolan. 1989. A detailed organic carbon budget as an ecosystem-level calibration of bacterial respiration in an oligotrophic lake during mid-summer. Limnol. Oceanogr. 34(2): 286-296.
Melack, J.M., J.L. Stoddard, and C.A. Ochs. 1985. Major ion chemistry and sensitivity to acid precipitation of Sierra Nevada lakes. Water Resour. Res. 21: 27-32.
Lab
manuals
Ochs, C.A. 1998. Inquiry into Life: Human Biology.
Hayden-McNeil Publishing,
Inc., 168 pp.
Stratton, G.E., and C.A. Ochs. 2000. Inquiry into Life: Diversity and the Environment. Hayden-McNeil Publishing, Inc., 184 pp.