Culture Systems (design, operation, management, environmental impact)
Seafood Products (new product development, processing, storage, quality, safety, HACCP)
Past & Ongoing Projects
Assessment of shrimp feed quality and feed mill operations in Guayaquil Ecuador, Central & Southern Philippines (ongoing)
Environmental impact of fish & shrimp farms in Central & Southern Philippines (ongoing)
Tropical aquaculture: Develop feeds for optimum nutrition of cultured shrimp and finfish. USDA-ARS Grant No. 59-5320-2-712 (Project cost: $1,015,174 per year), 10/1/05-9/30/08. W. Dominy, I. Forster, L. Obaldo, Z. Ju. Oceanic Institute, Hawaii USA
Converting Alaska fish by-products into value-added ingredients and products. USDA-ARS Cooperative Agreement No. 58-5341-4-591 (Project cost: $320,204 per year), 10/1/05-9/29/08. W. Dominy, I. Forster, L. Obaldo, Z. Ju (PI: P. Bechtel, USDA; S. Smiley, UAF). Oceanic Institute, Hawaii USA
Promotion of farmed moi (Polydactylus sexfilis) and kahala (Seriola rivoliana) fish industries in Hawaii through educational activities to improve Hawaii’s competitiveness in the U.S. market. NOAA-NMFS proposed project (Project Cost: $495,167), 8/1/07-2/1/09. A. Saulo, L. Obaldo, P. Tom. UH-OI-UC Davis USA
Expanding domestic and export markets for open ocean aquaculture products by value-adding. USDA-SBIR Grant (Project cost: $18,200 Phase I OI budget), 1/2/07-6/30/07. L. Obaldo (Oceanic Institute) & N. Sims (Kona Blue Water Farms), Hawaii USA
Dr. Leonard G. Obaldo appeared on TV Channel 55 “Focus on Agriculture” with Dr. Jack Fujii and Ressie Darval to feature seafood products (shrimp, moi, kahala) cultured at Oceanic Institute. 3/3/05 (7-8:30PM), UH-Hilo USA
Champion the creation of Product Innovation Laboratory & Sensory Panel in 2005 at Oceanic Institute for routine assessment (QC/QA) of feed impact on seafood quality. Hawaii USA
Champion the creation of environmentally friendly recirculation system in 2006 at Oceanic Institute for testing the impact of new feeds on seafood quality. Hawaii USA
Design, operation and feed quality testing and evaluation of shrimp feed mill in Guayaquil Ecuador, 1998
Selected Publications
Obaldo, L.G. and R. Masuda. 2006. Effect of diet size on feeding behavior and growth of Pacific whie shrimp, Litopenaeus vannamei. Journal of Applied Aquaculture 18(1):101-110.
Obaldo, L.G., A.S. Huang and A.R. Kamarei. 2004. O.I. trial: Sensory qualities of aquacultured amberjack. Global Aquaculture Advocate 7(1):21-22.
Obaldo, L.G. and A.R. Kamarei. 2004. Processing of aquacultured seafood: fresh and frozen products. Presented at World Aquaculture 2004 - The International Triennial Conference and Exposition of the World Aquaculture Society, March 1-5. Honolulu, Hawaii, USA.
Obaldo, L.G. and A.R. Kamarei. 2004. Processing of aquacultured seafood: canned and cured products. Presented at World Aquaculture 2004 - The International Triennial Conference and Exposition of the World Aquaculture Society, March 1-5. Honolulu, Hawaii, USA.
Deese, H. and L.G. Obaldo. 2004. Vertical fish tasting: An education-based method to evaluate and promote fish. Presented at World Aquaculture 2004 - The International Triennial Conference and Exposition of the World Aquaculture Society, March 1-5. Honolulu, Hawaii, USA.
Obaldo, L.G., W.S. Kashiwa, C.A. Otoshi and I.P. Forster. 2004. Evaluation of feeding and filtration management strategy for shrimp culture in a zero-water exchange system. Presented at World Aquaculture 2004 - The International Triennial Conference and Exposition of the World Aquaculture Society, March 1-5. Honolulu, Hawaii, USA.
Obaldo, L.G. and A.R. Kamarei. 2003. U.S. farm metrics help establish process engineering for value-added shrimp products. Global Aquaculture Advocate 6(6):20-21,27.
Dominy, W.G., J.J. Cody, J.H. Terpstra, L.G. Obaldo, M.K. Chai, T.I. Takamori, and I.P. Forster. In press. A comparative study of commercially available shrimp feed binders. Journal of Applied Aquaculture.
Forster, I.P., W.G. Dominy, L.G. Obaldo and A.G.J. Tacon. 2003. Rendered meat and bone meals as ingredients of diets for shrimp Litopenaeus vannamei (Boone, 1931). Aquaculture 219:655-670.
Cruz, E., D. Ricque, M. Tapia, C. Guajardo, L.G. Obaldo, M. Velasco and A. Carrasco. 2002. Water stability, texture of shrimp feeds formulated with natural, synthetic binders. Global Aquaculture Advocate 5(5):44-45.
Divakaran, S., L.G. Obaldo and I.P. Forster. 2002. Note on the methods for determination of chromic oxide in shrimp feeds. Journal of Agricultural and Food Chemistry 50(3):464-467.
Obaldo, L.G. 2002. U.S. shrimp growout diets: O.I. begins comparative testing. Global Aquaculture Advocate 5(6):71-72.
Obaldo, L.G. 2002. Physical qualities affect performance of shrimp feed. Global Aquaculture Advocate 5(5):40-42.
Obaldo, L.G. and D.H. Ernst. 2002. Design and modeling: zero-exchange shrimp production. Global Aquaculture Advocate 5(3):56-58.
Obaldo, L.G. and D.H. Ernst. 2002. Shrimp zero-exchange culture system: preliminary results, modeling and analysis. Page 403 in Proceedings of the Fourth International Conference on Recirculating Aquaculture. Roanoke, Virginia.
Obaldo, L.G. 2002. Feed texture - potential quality control method. Global Aquaculture Advocate 5(2):58-59.
Obaldo, L.G., S. Divakaran and A.G.J. Tacon. 2002. Method for determining the physical stability of shrimp feeds in water. Aquaculture Research 33(5):369-377.
Obaldo, L.G., S. Divakaran and R. Uchida. 2001. NIR accurate method for determining chemistry of shrimp feed ingredients. Global Aquaculture Advocate 4(5):58-59.
Obaldo, L.G. 2001. Evaluating water stability of shrimp feeds. International Aquafeed 2:42-43.
Obaldo, L.G. 2001. Processing and diet size affect feed pellet quality, performance. Global Aquaculture Advocate 4(2):42-43.
Obaldo, L.G. and A.G.J. Tacon. 2001. Manufacturing different feed sizes and its effect on pellet water stability and growth of three size classes of Pacific white shrimp, Litopenaeus vannamei. Journal of Applied Aquaculture 11(4):57-66.
Obaldo, L.G. and A.G.J. Tacon. 2001. Determining physical stability of shrimp feeds. Global Aquaculture Advocate 4(1):30-31.
Obaldo, L.G., W.G. Dominy and G.H. Ryu. 2000. Extrusion processing and its effect on aquaculture diet quality and shrimp growth. Journal of Applied Aquaculture 10(2):41-53.
Trigo-Stockli, D.M., L.G. Obaldo, W.G. Dominy and K.C. Behnke. 2000. Utilization of deoxynivalenol-contaminated hard red winter wheat for shrimp feeds. Journal of the World Aquaculture Society 31(2):247-254.
Velasco, M., A.L. Lawrence, F.L. Castille and L.G. Obaldo. 2000. Determining optimal dietary protein level for Litopenaeus vannamei postlarvae. Global Aquaculture Advocate 3(6):46-47.
Velasco, M., A.L. Lawrence, F.L. Castille and L.G. Obaldo. 2000. Dietary protein requirement for Litopenaeus vannamei. Pages 181-192 in Avances en Nutricion Acuicola V. Memorias del V Simposium Internacional de Nutricion Acuicola. L.E. Cruz-Suarez, D. Ricque-Marie, M. Tapia-Salazar, M.A. Olvera-Novoa and R. Civera-Cerecedo (eds.). Merida, Yucatan, Mexico.
Obaldo, L.G., W.G. Dominy and G.H. Ryu. 1999. Growth, survival, and diet utilization of Pacific white shrimp, Penaeus vannamei, fed dry extruded diets with different levels of shear and moisture. Journal of Applied Aquaculture 9(1):47-57.
Obaldo, L.G., W.G. Dominy and G.H. Ryu. 1999. Processing parameters of a wet extruded feed and its effect on shrimp biological performance. ASAE Paper No. 99-6130. American Society of Agricultural Engineers, St. Joseph, Michigan.
Ma, L., D.C. Davis, L.G. Obaldo and G.V. Barbosa-Canovas. 1998. Engineering Properties of Foods and Other Biological Materials: A Laboratory Manual. ASAE Publication 14-98 (ISBN 1-892769-00-X). American Society of Agricultural Engineers, St. Joseph, Michigan.
Obaldo, L.G., W.G. Dominy, J.H. Terpstra, J.J. Cody and K.C. Behnke. 1998. Does size matter? International Aquafeed 1:29-32.
Obaldo, L.G., W.G. Dominy, J.H. Terpstra, J.J. Cody and K.C. Behnke. 1998. The impact of ingredient particle size on shrimp feed. Journal of Applied Aquaculture 8(4):55-66.
