World Aquaculture 67 eries industries and it lives on to provide new, science-based information and to demonstrate these new technologies for state-of-the-art food and fiber production methods such as aquaculture. Simply put, the role of the aquaculture demonstration project is to help people change. Notes 1Aquaculture Program Specialist, United States Department of Agriculture, Cooperative State Research, Education, and Extension Service, Washington, DC 20024. Acknowledgments My sincere thanks and appreciation goes out to the members of the joint USDA/NOAA National Aquaculture Extension Steering Committee for their review and input into this manuscript: David Cline, Auburn University Cooperative Extension Service (CES); Gary Fornshell, University of Idaho CES; Tessa Getchis, University of Connecticut Sea Grant (SG); Gary Jensen, USDA Cooperative State Research, Education, and Extension Service; Andrew Lazur, University of Maryland; Joseph Morris, Iowa State University CES; Kate Naughten, National Oceanographic and Atmospheric Administration (NOAA); Paul Olin, University of California SG; Jeff Silverstein, USDA Agricultural Research Service; James Steeby, Mississippi State University CES; Nathan Stone, University of Arkansas at Pine Bluff CES; Jim Szyper; University of Hawaii SG; Laura Tiu, The Ohio State University CES; and Donald Webster, University of Maryland CES. I also want to thank the university and extension partners that are conducting the field research, education, and extension activities so vital to the success of these research demonstration projects: Rollie Barnaby, University of New Hampshire SG; Chris Hartleb, University of Wisconsin at Stevens Point; Chris Langdon, Oregon State University; Nathan Stone, University of Arkansas at Pine Bluff; and Leslie Sturmer, University of Florida CES. I thank them for their input on the demonstration projects described herein. Using a floating catfish grader during the harvest of one of the catfish verification production trials. (Photo: George Selden, University of Arkansas at Pine Bluff) Steve Pomerleau, Extension specialist, weighing a fish sample to assess the inventory of a commercial catfish pond in Arkansas. (Photo: Jeremy Trimpey, University of Arkansas at Pine Bluff) (Continued from page 52) Demonstration (Continued from page 60) Juvenile Prawns Prayinto, S. and J.W. Latchford. 1995. Experimental infections of crustaceans with luminous bacteria related to photobacterium and Vibrio: Effect of salinity and pH on infectiosity. Aquaculture 132:105–112. Samocha, T., M. Cordova, T. Blacher and A. de Wind. 2000. High-density nursery of Litopenaeus vannamei in white spot infected area utilizing raceway system with limited water discharge in Ecuador. Global Aquaculture Advocate 3:66–68. Tidwell J., S. Coyle, L. Bright, A.Van Arnum and C. Weibel. 2003. The effects of size grading and length of nursery period on growth and population structure of freshwater prawns stocked in temperate zone ponds with added substrates. Aquaculture 218:209–218. Tidwell, J., S. Coyle and S. Dasgupta. 2004. Effects of stocking different fractions of size graded juvenile prawns on production and population structure during a temperaturelimited growout period. Aquaculture 231:123–134. Zar, J. 1999. Biostatistical analysis. 4th Edition. Prentice-Hall, Inc., Upper Saddle River, New Jersey, USA. Reference Pigg, Kenneth E. 1983. Shades of Seaman Knapp. Journal of Extension 1983(4):21.
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