Roger W. Bachmann

Vis. Professor (Research)
Department of Fisheries and Aquatic Sciences
University of Florida
7922 NW 71st Street Gainesville, Florida 32653
Office Telephone: (352) 392-9617 ext 251
Office FAX: (352) 392-3672

B.S. University of Michigan, School of Natural Resources-Fisheries
1956 M.S. University of Idaho, College of Forestry-Fisheries 1958
Ph.D. University of Michigan, Graduate College- Zoology (limnology)1962

1963-1967, Assistant Professor, Iowa State University
1964, full membership in Graduate Faculty
1967-1971, Associate Professor, Iowa State University
1971-1993, Professor, Iowa State University
1975-1976, Acting Chairman, Department of Animal Ecology

1993-present, Research Professor, Dept. of Fisheries and Aquatic Sciences, University of Florida

B.S. with Distinction from University of Michigan (1956)
NSF Predoctoral Fellowship (1958-1961)

Fellow American Association for the Advancement of Science Distinguished Iowa Scientist - named by Iowa Academy of Science

(1981) Saylor Award in Fisheries (U of Michigan)

Mid American States Universities Association Honor Lecturer (1985-86)

National Representative to International Association for Theoretical and Applied Limnology elected for 1989-1992, reelected for 1992-1995

Phi Kappa Phi, Phi Sigma, Phi Eta Sigma, Society of Sigma Xi, Gamma Sigma Delta, Xi Sigma Pi.

PUBLICATIONS:

Bachmann, R. W. and E. P. Odum. 1960. Uptake of Zn-65 and primary productivity in marine benthic algae. Limnol. Oceanogr. 5:349-355.

Saunders, G. W., F. B. Trama, and R. W. Bachmann. 1962. Evaluation of a modified C-14 technique for shipboard estimation of photosynthesis in large lakes. Great Lakes Res. Div., IST, Univ. of Mich. Publ. No. 7, 163 pp.

Bachmann, R. W. 1963. Zinc-65 in studies of the freshwater zinc cycle. In Schultz, V. and A. W. Klement, ed. Radioecology; proceedings of the first national symposium on radioecology. Reinhold Publ. Co., N.Y., pp 485-496.

Bachmann, R. W., and C. R. Goldman. 1964. The determination of microgram amounts of molybdenum in natural waters. Limnol. Oceanogr. 9:143-146.

Bachmann, R. W. 1964. Comments on reports: The plankton community. Science 144:556-557

.Bachmann, R. W. and C. R. Goldman. 1965. Hypolimnetic heating in Castle Lake, California. Limnol. Oceanogr. 10:233-239.

Bachmann, R. W. 1965. Some chemical characteristics of Iowa lakes and reservoirs. Proc. Iowa Acad. Sci. 72:238-243.

Bachmann, R. W., R. V. Bovbjerg, and J. D. Hall. 1966. The morphometry of Lake West Okoboji. Proc. Acad. Sci. 73:165-168.

Mrachek, R. J. and R. W. Bachmann. 1967. Quantitative studies of the benthic fauna of Clear Lake, Iowa. Iowa State J. Sci. 42:161-170.

Fee, E. J. and R. W. Bachmann. 1968. An empirical study of the Defant method of seiche analysis. Limnol. Oceanogr. 13:665-669.

Konefes, J. L. and R. W. Bachmann. 1971. Growth of the fathead minnow (Pimephales promelas) in tertiary treatment ponds. Proc. Iowa Acad. Sci. 77:104-111.

Bachmann, R. W. and C. L. Olson. 1973. Limnological aspects of the river and the proposed reservoir. Chapter 5 in Ames Reservoir Environmental Impact Study, Iowa State Water Resources Research Institute, 80 pp.

Crum, G. H. and R. W. Bachmann. 1973. Submersed aquatic macrophytes of the Iowa Great Lakes region. Iowa State J. Res. 48:147-173.

Jones, J. R., D. M. Coon, and R. W. Bachmann. 1974. Limnological and fisheries survey of the upper Skunk River, Iowa. Iowa State J. Res. 48:255-266.

Jacobsen, T. V. and R. W. Bachmann. 1974. Calculation of water temperatures in Clear Lake, Iowa. Iowa State J. Res. 48:285-290.

Bachmann, R. W. and J. R. Jones. 1974. Phosphorus inputs and algal blooms in lakes. Iowa State J. Res. 49:155-160.

Bachmann, R. W. and T. V. Jacobsen. 1975. Thermal structure of Clear Lake, Iowa. Proc. Iowa Acad. Sci. 81:102-107.

Jones, J. R. and R. W. Bachmann. 1975. Limnological features of some northwestern Iowa lakes. Proc. Iowa Acad. Sci. 81:158-163.

Jones, J. R. and R. W. Bachmann. 1975. Algal response to nutrient inputs in some Iowa lakes. Verh. Int. Ver. Limnol. 19:904-910.

Jones, J.R., B.P. Borofka, and R.W. Bachmann. 1976. Factors affecting nutrient loads in some Iowa streams. Water Research 10:117-122.

Jones, J. R. and R. W. Bachmann. 1976. Prediction of phosphorus and chlorophyll levels in lakes. J. Water Pollut. Control Fed. 48:2176-2182.

Swanson, C. D. and R. W. Bachmann. 1976. A model of algal exports in some Iowa streams. Ecology 57:1076-1080.

Bachmann, R. W. and J. R. Jones. 1976. Nutrient removal and water quality. Water Wastes Eng. 13(2):14-16.

Kilkus, S.P., J. D. LaPerriere, and R. W. Bachmann. 1975. Nutrients and algae in some central Iowa streams. J. Water Pollut. Control Fed. 47:1870-1879.

Jones, J. R. and R. W. Bachmann. 1978. A survey of water transparency in Iowa lakes. Proc. Iowa Acad. Sci. 85:6-9.

Zimmer, D. W. and R. W. Bachmann. 1978. Channelization and invertebrate drift in some Iowa streams. Water Resources Bulletin 14(4):868-883.

Jones, J. R. and R. W. Bachmann. 1978. Trophic status of Iowa lakes in relation to origin and glacial geology. Hydrobiologia 56:267-273.

Canfield, D. E. and R. W. Bachmann. 1978. Detrital aggregates in some Iowa lakes and reservoirs. Hydrobiologia 57:275-279.

Jones, J. R. and R. W. Bachmann. 1978. Phosphorus removal by sedimentation in some Iowa reservoirs. Verh. Int. Ver. Limnol. 20:1576-1580.

Burkholder-Crecco, J. M. and R. W. Bachmann. 1979. Potential phytoplankton productivity of three Iowa streams. Proc. Iowa Acad. Sci. 86:22-25.

Nesler, T. P. and R. W. Bachmann. 1979. Influence of coal mining on water quality in Marion and Mahaska counties, Iowa. Proc. Iowa Acad. Sci. 20:149-153.

Bachmann, R. W. 1980. The role of agricultural sediments and chemicals in eutrophication. Journal Water Pollution Control Federation. 52:2425-2431.

Canfield, D. E. Jr., and R. W. Bachmann. 1981. Prediction of total phosphorus concentrations, chlorophyll a, and Secchi depths in natural and artificial lakes. Can. J. Fish. Aquat. Sci 38:414-423.

Bachmann, R. W. 1981. Prediction of total nitrogen in lakes and reservoirs. pp 320-324 In U. S. Environmental Protection Agency. Restoration of lakes and inland waters; International symposium on inland waters and lake restoration,September 8-10, 1980, Portland, Maine. U.S. EPA 440/5-81-010.

Canfield, D. E. Jr., J.R. Jones, and R. W. Bachmann. 1982. Sedimentary losses of phosphorus in some natural and artificial Iowa lakes. Hydrobiologia 87:65-76.

Bachmann, R. W. and P. J. Horick. 1982. Water. Chapter 3 in T. C. Cooper editor. Iowa's natural heritage. Iowa Natural Heritage Foundation and Iowa Academy of Science. Des Moines, Iowa.

Canfield, D. E., Jr., R. W. Bachmann, and M. V. Hoyer. 1983. Freeze-out of salts in hard-water lakes. Limnol. Oceanogr. 28:970-977.

Bachmann, R. W., G. Atchison. 1984. Fishery and limnological techniques. University Bookstore, ISU. 170 pp. (This is a laboratory manual that is revised each year).

Bachmann, David W. and R. W. Bachmann. 1984. A beginner's guide to the ISU VAX computer. Kendall/Hunt, Dubuque.

Bachmann, R. W. 1984. Calculation of phosphorus and nitrogen loadings to natural and artificial lakes. Vehr. Int. Ver. Limnol. 22:239-243.

Dombeck, M. P., R. W. Bachmann, and B. W. Menzel. 1984. A method for measuring dissolved oxygen in aquatic microzones. Jour. Freshwater Ecology 2:535-540.

Soballe, D. M., and R. W. Bachmann. 1984. Removal of Des Moines River phytoplankton by reservoir transit. Can. J. Fish. Aquat. Sci. 41:1803-1813.

Carper, G. L., and R. W. Bachmann. 1984. Wind resuspension of sediments in a prairie lake. Can. J. Fish. Aquat. Sci. 41:1763-1767.

Atchison, G. J., R. W. Bachmann, J. G. Nickum, J. B. Barnum, and M. B. Sandheinrich. 1986. Aquatic biota associated with channel stabilization structures and abandoned channels in the Middle Missouri River. Technical Report E-86-6. U. S. Army Engineer Waterways Experiment Station, Vicksburg, Mississippi.

Bachmann, R. W. 1986. Chemical processes in lakes. W. Stum (editor) J. N. Amer. Benth. Soc. 5:321-323 (Book review)

Bachmann, R. W., K. J. Kortge, and T. E. Robertson. 1988. Primary production in a small agricultural stream. Vehr. Int. Ver. Limnol. 23:1179-1182.

Barnum, J. B. and R. W. Bachmann. 1988. Benthic macroinvertebrate habitat associations of the channelized Middle Missouri River. Jour.Iowa Acad. Sci. 95:60-65.

Bushong, S. J., and R. W. Bachmann. 1989. In situ measurements of nutrient limitation in some agricultural streams. Hydrobiologia 178:1-10.

Bachmann, R.W. 1990. Ecology and our endangered life-support systems. E.P. Odum. J. N. Amer. Benth. Soc. 9:91 (Book review)

Bachmann, R.W. 1990. Climatic influences on annual variations on water transparency in Lake West Okoboji. Jour. Iowa Acad. Sci. 97:142-145.

Bachmann. R.W., W.G. Crumpton, and G.L. Hallberg. 1991. Nitrogen losses in an agricultural stream. Vehr. Int. Ver. Limnol. 24:1641-1643.

Bachmann, R.W. 1991. Reservoir limnology:ecological perspectives. K.W. Thornton, B.L. Kimmel, and F.E. Payne. J.N. Amer. Benth. Soc. 10:85-86. (Book review)

Gaiser, E. E., and R. W. Bachmann. 1993. The ecology and taxonomy of epizoic diatoms on Cladocera. Limnology and Oceanography 38:628-637.

Gaiser, E. E., and R. W. Bachmann. 1994. Seasonality, substrate preference and attachment sites of epizoic diatoms on Cladocera. Journal of Plankton Research 16:53-68.

Birmingham, M. W., R. W. Bachmann, and W. G. Crumpton. 1994. Nitrate uptake by stream sediments: The influence of sediment character. Vehr. Int. Ver. Limnol 25:1467-1470.

Bachmann, R. W., and D. E. Canfield Jr. 1996. Use of an alternative method for monitoring total nitrogen concentrations in Florida lakes. Hydrobiologia 323:1-8.

Bachmann, R. W., B. L. Jones, D. D. Fox, M Hoyer, L. A. Bull, and Daniel E. Canfield, Jr. 1996. Relations between trophic state indicators and fish in Florida (USA) lakes. Can. J. Fish. Aquat. Sci. 53:842-855

Brown, C. D.., D. E. Canfield, Jr., R. W. Bachmann, and M. V. Hoyer. 1998. Seasonal patterns of chlorophyll, nutrient concentration and Secchi disk transparency in Florida lakes. Lake and Res. Manage. 14:60-76

Brown, C. D., D. E. Canfield, Jr., R. W. Bachmann, and M. V. Hoyer. 1999. Evaluation of surface sampling for estimates of chlorophyll, total phosphorus, and total nitrogen concentration in shallow Florida lakes. Lake and Res. Manage. 15:121-132.

Bachmann, R. W., M. V. Hoyer, and D. E. Canfield, Jr. 1999. The restoration of Lake Apopka in relation to alternative stable states. Hydrobiologia 394:219-232.

Bachmann, R. W. 1999. A guide to the restoration of nutrient-enriched shallow lakes. B. Moss, J. Madgwick, and G. Phillips. Limnol. & Oceanogr. 44:737 (Book review).

Bachmann, R. W., M. V. Hoyer, and D. E. Canfield, Jr. 2000. Internal heterotrophy following the switch from macrophytes to algae in Lake Apopka, Florida. Hydrobiologia 418:217-227.

Brown, C. D., M. V. Hoyer, R. W. Bachmann, and D. E. Canfield, Jr. 2000. Nutrient-chlorophyll relationships: an evaluation of empirical nutrient-chlorophyll models using Florida and north-temperate lake data. Can J. Fish. Aquat. Sci. 57:1574-1583.

Canfield, D. E., Jr., R. W. Bachmann, & M. V. Hoyer, 2000. A management alternative for Lake Apopka. Lake and Res. Manage. 16:205-221.

Bachmann, R. W., M. V. Hoyer, and D. E. Canfield, Jr. 2000. The potential for wave disturbance in shallow Florida lakes. Lake and Res. Manage. 16:281-291.

Bachmann, R. W. 2001. The limiting factor concept What stops growth? Lakeline 21(1):26-28.

Bachmann, R. W., M. V. Hoyer, and D. E. Canfield, Jr. 2001. Sediment removal by the Lake Apopka marsh flow-way. Hydrobiologia 448:7-10.

Bachmann, R. W., M. V. Hoyer, and D. E. Canfield, Jr. 2001. Evaluation of recent limnological changes at Lake Apopka. Hydrobiologia 448:19-26.

Bachmann, R.W., C.A. Horsburgh, M.A. Hoyer, L.K. Matarazza and D.E. Canfield, Jr. 2002. Relations between trophic state indicators and plant biomass in Florida lakes. Hydobiologia 470:219-234.

Canfield, Jr., D. E., C. D. Brown, R. W. Bachmann and M. V. Hoyer. 2002. Volunteer lake monitoring: Testing the reliability of data collected by the Florida Lakewatch Program. Lake and Reservoir Management. 18 (1):1-9.

Bachmann, R. W., M. V. Hoyer, C. Fernandez, and D. E. Canfield. Jr. 2003. An alternative to proposed phosphorus TMDLs for the management of Lake Okeechobee. Lake and Reserv. Manage. 19:251-264.

Bachmann, R. W., M. V. Hoyer, and D. E. Canfield. Jr. 2003. Predicting the frequencies of high chlorophyll levels in Florida lakes from average chlorophyll or nutrient data. Lake and Reserv. Manage. 19:229-241.

Bachmann, R.W., M.V. Hoyer and D.E. Canfield, Jr. 2004. Aquatic plants and nutrients in Florida lakes. Aquatics: 26(3)4-11

Bachmann, R.W., M.V. Hoyer, S.B.Vinzon and D.E. Canfield, Jr. 2005 . The origin of the fluid mud layer in Lake Apopka, Florida. Limnol. Oceanogr. 50:629-635.

Hoyer, M.V., C.A. Horsburgh, D.E. Canfield, Jr. and R.W. Bachmann. 2005. Lake level and trophic state variables among a population of shallow Florida lakes and within individual lakes. Can. J. Fish. Aquat. Sci. 62: :2760-2769.

Bachmann, R.W., M.V. Hoyer, S.B. Vinzon and D.E. Canfield, Jr. 2006. Another look at the origin of the fluid mud layer in Lake Apopka, Florida. Limnol. Oceanogr. 51:2480-2483.

Mark V. Hoyer, Roger W. Bachmann and Daniel E. Canfield, Jr. 2008. Lake management (muck removal) and hurricane impacts to the trophic state of Lake Tohopekaliga, Florida. Lake and Reservoir Management 24:57-68