58 DECEMBER 2012 • WORLD AQUACULTURE • WWW.WAS.ORG Novelo, N. D. and T. R. Tiersch. 2012. A review of the use of ultrasonography in fish reproduction. North American Journal of Aquaculture 74:169-181. Nyland, T. G., J. S. Mattoon, E. J. Herrgesell and E. R. Wisner. 2002. Physical principles, instrumentation, and safety of diagnostic ultrasound. Pages 1-18 in T. G. Nyland and J. S. Mattoon, editors. Small Animal Diagnostic Ultrasound. Saunders, Philadelphia. Pawiroredjo, P., J. Lamoureux, S. G. Hall and T. R. Tiersch. 2008. Degree-days as a tool to determine the heating requirement for channel catfish spawning in earthen ponds. North American Journal of Aquaculture 70:328-337. Phelps, R. P., R. Hastey, J. Broach, A. Pendetar, L. Linley, N. Papanikos and R. A. Dunham. 2011. Broodstock selection criteria for induced spawning of channel catfish for the production of channel x blue catfish hybrid fry and the influence of temperature. North American Journal of Aquaculture 73:180-186. Toal Jr., R.L. 1996. Ultrasound for the Practitioner. 2nd Edition, Professional Veterinary Software Services, Effingham, IL. Wolters, W. R. and T. R. Tiersch. 2004. Genetics and Breeding. Pages 95-128 In: C. S. Tucker and J. A. Hargreaves, editors. Biology and Culture of Channel Catfish. Elsevier, Amsterdam, The Netherlands.
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