David D. Kuhn
Research Associate, Department of Food Science and Technology
| Phone: 540-231-8865 | FAX: | e-mail: |
CURRENT WORK
As a Research Associate for Virginia Tech’s Department of Food Science and Technology, Dr. David Kuhn professional and research experience has included designing and conducting various experiments at the recirculating system shrimp farm in Martinsville, VA. Experiments include (i) live dry shipment of shrimp, (ii) biological treatment of freshwater fish effluent, (iii) biological treatment of brackish water shrimp effluent, (iv) bacteria protein as a fishmeal replacement in shrimp feeds, (v) acute and chronic toxicity of nitrogen to shrimp, (vi) implementation of microbial product to improve nitrification rates, and overall improvement of water and solids reuse.
EDUCATION
Doctor of Philosophy, Civil Engineering (Environmental Concentration), May 2008
Virginia Polytechnic Institute and State University (Virginia Tech), Blacksburg, VADissertation: Enhancing aquaculture sustainability through water reuse and biological treatment
Masters of Science, Civil Engineering (Environmental Concentration), December 2003, Clarkson University, Potsdam, NY
Thesis: Direct photolysis of hexacyanoferrate (II), under conditions representative of surface watersBachelor of Science, Civil Engineering (Environmental Concentration), May 2001
Clarkson University, Potsdam, NYBachelor of Science, Mathematics, May 2000
Saint Lawrence University, Canton, NYAs a graduate research assistant for the University’s Department of Civil and Environmental Engineering, Dr. Kuhn designed and conducted various experience that included optimizing the treatment of fish effluent using suspended growth biological treatment, investigating the use of bacterial proteins as a suitable fishmeal replacement ingredient in aquaculture feeds for shrimp, and determining suitable ion levels for farming marine shrimp in freshwater environments. Dr. Kuhn’s research also included additional experiments with freshwater fish (perch, tilapia), marine fish (cobia, flounder), and invertebrates (corals, endangered freshwater mussels).
PUBLICATIONS
2009 Kuhn D.D., A.L. Lawrence, S. Patnaik, G.D. Boardman, L. Marsh, G.J. Flick Jr. (in preparation). Bioflocs produced by biologically treating fish effluent is a sustainable replacement ingredient for soybean and fishmeal. Aquaculture.
2009 Kuhn D.D., S.A. Smith, M. Angier, L. Marsh, G.D. Boardman, G.J. Flick Jr. (in preparation). Chronic toxicity of nitrate to Litopenaeus vannamei: effects on production and histopathology. Aquaculture.
2009 Kuhn D.D., D.J. Drahos, L. Marsh, G.J. Flick Jr. (in preparation). Nitrifying bacteria product improves nitrification at a commercial shrimp farm: tracking nitrifying bacteria strains using real-time PCR (qPCR). Aquacultural Engineering.
2009 Kuhn, D.D., G.D. Boardman, A.L. Lawrence, L. Marsh, G.J. Flick Jr.. (submitted). Microbial flocs generated in bioreactors is a superior replacement ingredient for fishmeal or soybean meal in shrimp feed. Aquaculture.
2009 Schuler, D.J., G.D. Boardman, D.D. Kuhn, G.J. Flick Jr.. (accepted). Acute toxicity of ammonia and nitrite to Litopenaeus vannamei at low salinities. Journal of the World Aquaculture Society.
2008 Kuhn, D.D., G.D. Boardman, S.R. Craig, G.J. Flick Jr., and E. McLean. Use of microbial flocs generated from tilapia effluent as a nutritional supplement for shrimp Litopenaeus vannamei in RAS. Journal of the World Aquaculture Society 39: 72-82.
2007 Duncan, M., S.R. Craig, A.N. Lunger, D.D. Kuhn, G. Salze, and E. McLean. Bioimpedance assessment of body composition in cobia Rachycentron canadum (L. 1766). Aquaculture 271: 432-438.2007 Lunger, A.N., E. McClean, T.G. Gaylord, D.D. Kuhn, and S.R. Craig. Taurine supplementation to alternative dietary proteins used in fish meal replacement enhances growth of juvenile cobia (Rachycentron canadum). Aquaculture 271: 401-410.
2007 Kuhn, D.D., G.D. Boardman, S.R. Craig, G.J. Flick Jr., and E. McLean. Evaluation of tilapia effluent with ion supplementation for marine shrimp production in a RAS. Journal of the World Aquaculture Society 38: 74-84.
2006 McLean, E., B. Reid, D. Fegan, D. Kuhn and S. Craig. Total replacement of fishmeal with an organically certified yeast-based protein in Pacific White Shrimp (Litopenaeus vannamei) diets: laboratory and field trials. Ribarstvo 64: 47-58.2005 Maillard, V.M., G.D. Boardman, J.E. Nyland, and D.D. Kuhn. Water quality and sludge characterization at raceway-system trout farms. Aquacultural Engineering. 33: 271-284.
2005 Kuhn, D.D., and T.C. Young. Photolytic degradation of hexacyanoferrate (II) in aqueous media: the determination of degradation kinetics. Chemosphere 60: 1222-1230.
