Following is a list of our CFAST personnel. Please click on their photo or the 'show bio' link to view their detailed bio.
Biography: Gregory D. BoardmanExpertise: Solid and Liquid Waste Treatment; Pollution Prevention; Water Treatment and Conservation
Nutritional requirements of shrimp
Treatment of effluent waters from a trout farm
Simulation and optimization of recirculating facilities
Stimulation of Vitellogenin in Fish
Vitellogenin, a type of protein, is a biomarker for estrogenic activity. In this study, levels of vitellogenin in medaka are being assayed by means of ELISA, following exposure of the fish to commonly used chemotherapeutics.
Reduction of Disinfection By-Products (DBPs)
The goal of this project is to identify means of reducing the DBPs (trihalomethanes and haloacetic acids) created at a full-scale, water treatment plant. The role that sludges in treatment plant clarifiers may play in contributing to DBP levels is being rigorously studied.
Biography: Daniel P. TaylorExpertise: Aquaculture Planning and Management; Product Development; Seafood Safety
Daniel P. Taylor joined Virginia Tech in 2010 as the head aquaculture research specialist at the Southwest Virginia Aquaculture Research Center (SVARC). He brings an interdisciplinary background to meet the multifaceted objectives of Virginia Tech’s seafood research agenda. After receiving his B.Sc. from Old Dominion University, he attended Aalborg University in Denmark and received his M.Sc. from Lund University in Sweden. Taylor has domestic and international experience in aquatic toxicology, aquatic animal husbandry, aquaculture management and planning, environmental spatial modeling, implementing sustainable development projects, green construction, and aquaponics design.
Biography: Laura S. LawsonExpertise: High Pressure Processing; Lab Specialist; Administration; Technical Writing
Biography: George J. Flick, Jr.Expertise: Fish and Shellfish Processing; Food Safety; Quality Assurance; HACCP
Currently, three doctoral candidates and three laboratory assistants are working on the following topics: the effect of alternative processing operations (high pressure, irradiation, thermal energy) on survival of the parasite, Cryptosporidium parvum, in oysters (Crassostrea virginica); the effects of harvesting, processing and distribution on the formation of histamine and other biogenic amines in major commercial mid-Atlantic fish species; the presence and dynamics of Listeria monocytogenes and other Listeria species in ready-to-eat fish and shellfish products (i.e., smoked fish, crab meat, shrimp); and the effects of thermal processing on the quality and safety of pasteurized blue crab (Callinectes sapidus) meat.
Biography: Linda A. Granata
Biography: David D. Kuhn
2010. Kuhn, D.D., S.A. Smith, G.D. Boardman, M.W. Angier, G.J. Flick Jr. (in press). Chronic toxicity of nitrate to Pacific white shrimp, Litopenaeus vannamei: impacts on survival, growth, antennae length, and pathology. Aquaculture.
2010. Mainous, M.E., Smith, S.A., Kuhn, D.D. (in press). Effect of common aquaculture chemicals against Edwardsiella ictaluri and Edwardsiella tarda. Journal of Aquatic Animal Health.
2010. Kuhn, D.D., G.D. Boardman, G.J. Flick Jr. (in press). Production of microbial flocs using laboratory-scale suspended growth biological processes for removing nutrients in tilapia wastewaters. International Journal of Recirculating Aquaculture.
2010. Kuhn, D.D., A.L. Lawrence, G.D. Boardman, L. Marsh, G.J. Flick Jr. (in press). Understanding what makes bioflocs great for shrimp. Global Aquaculuture Advocate.
2010. Kuhn, D.D., A.L. Lawrence, G.D. Boardman, L. Marsh, G.J. Flick Jr. (in press). Tecnologia de biofloc utilizando biorreactores: tratamiento de efluentes acuicolas y generacion de proteina para alimento de camaron. Industria Aquicola.
2010. Kuhn, D.D., D.D. Drahos, L. Marsh, G.J. Flick Jr. Evaluation of nitrifying bacteria to improve nitrification efficacy in recirculating aquaculture systems. Aquacultural Engineering 43, 78-82.
2010. Schuler, D.J., G.D. Boardman, D.D. Kuhn, G.J. Flick Jr. Acute toxicity of ammonia and nitrite to Litopenaeus vannamei at low salinities. Journal of the World Aquaculture Society 41, 438-446.
2010. Kuhn, D.D., A.L. Lawrence, G.D. Boardman, S. Patnaik, L. Marsh, G.J. Flick Jr. Evaluation of two types of biofloc meals derived from biological treatment of fish effluent as feed ingredients for Pacific white shrimp, Litopenaeus vannamei. Aquaculture 303, 28-33.
2010. Kuhn, D.D., A.L. Lawrence, G.D. Boardman, G.J. Flick Jr. Evaluacion de bioflocs derivados de biorreactores de crecimiento en suspension como ingredientes en alimento de camaron. Panorama Acuicola Magazine. September/October 2010, p. 10-18.
2010. Kuhn, D.D., A.L., Lawrence, G.D., Boardman, G.J., Flick Jr. Biofloc: a novel and sustainable ingredient for shrimp feed. Global Aquaculture Advocate. May/June 2010, p. 75-76.
2010. Kuhn, D.D., G.D., Boardman, A.L., Lawrence, G.J., Flick Jr. Suspended-growth biological processes clean RAS wastewater. Global Aquaculture Advocate. January/Feburary 2010, p. 45-47.
2009. Kuhn DD, GD Boardman, L Marsh, AL Lawrence, GJ Flick Jr. Technology and research advances for the production of marine shrimp in recirculating aquaculture systems. Journal of Shellfish Research 28 (3), 709.
2009. Kuhn, D.D., G.D. Boardman, A.L. Lawrence, L. Marsh, G.J. Flick Jr. Microbial floc meal as a replacement ingredient for fish meal and soybean protein in shrimp feed. Aquaculture 296, 51-57.
2009. Kuhn, D.D., G.D. Boardman, S.R. Craig, G.J. Flick Jr., E. McLean. Use of microbial flocs generated from tilapia effluent as a nutritional supplement for shrimp Litopenaeus vannamei in recirculating aquaculture systems. Panorama Acuicola Magazine. January/Febuary 2009, p 32-37.
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.
Biography: Lori S. MarshExpertise: Vermiculture; Waste Management
Biography: Terry T. RakestrawExpertise: Coordination/organization of national and international conferences/workshops
Biography: Dan B. TaylorExpertise: Production and Resource Economics, Operations Research, Policy Analysis, Sustainable Development
Biography: Stephen A. SmithExpertise: Aquatic Medicine; Fish Health Management
As a veterinarian, his specific area of expertise is in aquatic medicine and fish health management. In addition, he has established a research and isolation laboratory for the study of fish pathogens and chemotherapeutic development. He has been associated with over one million dollars in research grants and was the 1995 recipient of the Pfizer Animal Health Award for Research Excellence. Dr. Smith is a member of the Fish Health Section of the American Fisheries Society, the International Association for Aquatic Animal Medicine, American Association of Zoo Veterinarians, American Association of Wildlife Veterinarians, and the American Veterinary Medical Association.
Since joining Virginia Tech, Dr. Smith has directed numerous research projects, including the evaluation of the immune response in striped bass; the development of hematology and blood chemistry values in striped bass and tilapia; the description of normal anatomy and histology of commonly cultured fish; and the evaluation of the effects of various environmental chemical toxicants on the immune system of fish.
He has been involved with the development of several diagnostic assays for infectious disease of cultured finfish, and has promoted the development of non-lethal assays for the evaluation and monitoring of fish health. Another area of his research focuses on mycobacteriosis in aquatic organisms and techniques to detect this potentially zoonotic bacteria premortem. He has been involved with determining the distribution of whirling disease in cultured and wild trout populations in Virginia, and is one of the initial researchers involved with the discovery of the toxic dinoflagellate Pfiesteria piscicida, which is the reported cause for many of the fish kills along the eastern U. S. coast.