John Ewart, Aquaculture Specialist

E-mail: ewart@udel.edu
Phone: 302-645-4060

Delaware Sea Grant Marine Advisory Service
700 Pilottown Road
Lewes, DE 19958-1298

Education

M.S., Marine Studies, University of Delaware, Lewes, DE, 1985
B.S., Zoology, University of Rhode Island, Kingston, RI, 1973

Research Interests

Shellfish and finfish aquaculture, shellfish restoration and stock enhancement, aquatic production systems/live transport, commercial and recreational fisheries, aquaculture waste/effluent management, aquaculture policy, marine/estuarine water quality, technology transfer and training, information technologies.

Current Projects
  • Delaware Aquaculture Resource Center
  • Aquaculture in Delaware
  • The Northeast Regional Aquaculture Industry
  • Shellfish Stock Enhancement and Habitat Restoration
  • Charter Boat Business Management
Professional Activities
  • World Aquaculture Society
  • National Shellfisheries Association
  • East Coast Shellfish Growers Association
  • East Coast Shellfish Research Institute
Selected Publications

Ewart, John W. (editor). 2013. Shellfish Aquaculture in Delaware’s Inland Bays: Status, Opportunities, and Constraints. Delaware Sea Grant Program, College of Earth, Ocean and Environment (CEOE), University of Delaware, Lewes, Delaware. 43p.

Myers, Joseph J., Bin Liu, Yumin You, Ramu Govindasamy, Venkat Puduri, John W. Ewart and Linda J. O’Dierno. 2010. Consumer Analysis in Ethnic Live Seafood Markets in the Northeast Region of the United States. Journal of Food Products Marketing. Volume 16 (2). pp. 147-165.

Ewart, John and Dennis McIntosh. 2009 Aquaculture Situation And Outlook Report 2009: Delaware. Northeastern Regional Aquaculture Center. College Park, Maryland. NRAC Publication Number 102-2009. 6 p.

Myers, Joseph J., Ramu Govindasamy, John W. Ewart, Bin Liu, Yumin You, Venkata S. Puduri and Linda J. O'Dierno. 2009. Survey of Ethnic Live Seafood Market Operators in the Northeastern USA. Aquaculture Economics & Management. Volume 13, Issue 3. pp. 222 – 234.

Myers, Joseph J., Bin Liu, Yumin You, Ramu Govindasamy, Venkat Puduri, John W. Ewart and Linda J. O’Dierno. 2009. Consumer Analysis in Ethnic Live Seafood Markets in the Northeast Region of the United States. Journal of Food Products Marketing. Volume 16(2). In Press.

McIntosh, Dennis and John Ewart. 2007. Aquaculture Situation And Outlook Report 2007: Delaware. Northeastern Regional Aquaculture Center. College Park, Maryland. NRAC Publication 102-2007. 6p.

Urlich, P.N., J.W. Ewart and A.M. Marsh. 2007. Prevalence of Perkinsus marinus (Dermo), Haplosporidium nelsoni (MSX), and QPX in Bivalves of Delaware’s Inland Bays and Quantitative, High-Throughput Diagnosis of Dermo by QPCR. Journal of Eukaryotic Microbiology. 54(6), pp. 520–526.

Kendall, Lindsay R., J. W. Ewart, P. Ulrich, and A. Marsh. 2007. Low Incidence and Limited Effect of the Oyster Pathogen Dermo (Perkinsus marinus) on an Artificial Reef in Delaware’s Inland Bays. Estuaries and Coasts Vol. 30, No. 1, p. 1–9. In Press.

Ewart J.W. 2005. Recommendations for an Operational Framework for Offshore Aquaculture in U.S. Federal Waters. Technical Report. Gerard J. Mangone Center for Marine Policy, University of Delaware. Delaware Sea Grant Publication Number DEL-SG-09-05. 118p.

With B. Cicin-Sain, S.M. Bunsick, J. Corbin, M. R. DeVoe, T. Eichenberg, J. Firestone, K. Fletcher, H. Halvorson, T. MacDonald, R. Rayburn, R. Rheault, and B. Thorne-Miller. Ewart, John W., J. Alderman and EJ Chalabala. 2005. Inland Bays Applied Shellfish Research and Field Demonstration Projects are Yielding Valuable Information. Inland Bays Journal. Fall 2005. 4 p.

Ewart, J.W. 2005. Delaware Center for the Inland Bays Oyster Gardening Program Fact Sheet. Delaware Sea Grant Marine Advisory Program. Graduate College of Marine and Earth Studies, University of Delaware. 2 p.

Ewart, J.W., A. Marsh, P. Ulrich and K. Fielman. 2002. An East Coast Estuary Without Dermo or MSX? The Presence of Perkinsus or Haplosporidium Pathogens is Undetectable in Bivalves from Delaware’s Inland Bays. Proceedings of the 4th International Symposium on Aquatic Animal Health. September 1-5, 2002. New Orleans, Louisiana.

Ewart, J.W. 2001. A Policy Framework for Offshore Marine Aquaculture in the 3-200 Mile U.S. Ocean Zone. Center for the Study of Marine Policy. University of Delaware, Newark, Delaware. 152 p.

With B. Cicin-Sain, R. Knecht, S. Bunsick, T. Eichenberg, R. DeVoe, R. Rheault and H. Halvorson. Ewart, J.W. and D. Webster (editors) 2000. Proceedings of EAST COAST LIVE! 2000 The Business of Marketing Live Aquatic Products. Annapolis, Maryland. November 1 4, 2000. 120 p.

Ewart, J.W. 1999. Regional Extension Activities Sponsored by the Northeastern Regional Aquaculture Center. Proceedings of the National Wildlife, Fisheries, and Aquaculture Extension Conference. Portland, Maine. September 29 - October 2, 1999. 5 p.

Page Updated on November 20, 2013