Oklahoma State University	Department of Zoology

Dale Toetz Professor Ph.D., 1965, Indiana University Email: dale.toetz@okstate.edu Phone: 405-744-9673

(Aquatic Ecology; Stable Isotopes)

Specific Interests

My broad research interest is aquatic productivity. Studies of the nitrogen cycle have formed a convenient entry into this topic, the research being conducted at organismic, population, and ecosystem level in the field and laboratory. I have also studied taste and odor problems, articicial destratification, alpine lakes and streams, macrophyte nutrition, aquatic insect phenology, stable isotopes in food webs, and nutrient budgets of lakes. Fish research has focused on growth and cohort formation. My present research focuses on nutrient limitation in streams and long-term ecological research in Colorado.

Selected Publications

• Toetz, D. 2006. Nitrates in ground and surface waters in the vicinity of a concentrated animal feeding operation. Archive fur Hydrobiologie: 166:67-77.
• Toetz, D. and M. Payton. 2006. The role of dissolved organic matter in accrual of periphytic biomass in a subalpine stream, Colorado Front Range. Journal Freshwater Ecology 21:613-620
• Toetz, D. and M. Payton. 2004. Synergism of nutrients and humic acid in accrual of periphytic biomass in a sub-alpine stream, Colorado Front Range. Journal Freshwater Ecology. 19:35-40.
• Doyle, W., D. Toetz and M. Payton. 2003. Comparison of growth, condition, and population structure of white crappie in Lake Carl Blackwell 1984-1985 to 1998. Proceedings Oklahoma Academy of Science. 83:23-29.