World Aquaculture Magazine - June 2021

56 JUNE 2021 • WORLD AQUACULTURE • WWW.WA S .ORG Grow-outManagement Currently, several Saudi aquaculture companies have started industrial-scale farms for Sabaki tilapia and fish have begun to appear on the market (Fig. 10). Grow-out farming systems include marine cages, FRP tanks, hapa net cages and traditional ponds. Generally, farming of Sabaki tilapia is not very different from methods used for other tilapia species. However, because of the unique farming environment in Saudi Arabia, the fishes are under stress from high salinity (42‰) and temperature (37 C) in the production period. Disease outbreaks are frequent and bacterial infections continually emerge during the winter season (Fig. 11). Notes Benjamin C. Young 1, 2* , Riyadh Hussain Alfaggeh 1 , Ibrahim AlMoutiri 1 1 Jeddah Fisheries Research Center, Ministry of Environment & Water &Agriculture, Kingdom of Saudi Arabia. 2 Taiwan International Cooperation and Development Fund, Taiwan. * Corresponding author Address: Prince Abdullah AlFiasal St, Al Zummrad, Jeddah 23823, Kingdom of Saudi Arabia; Tel: +966-054-545-7513 ; E-mail address: bensimmonsnpust@gmail.com FIGURE 7. An arena tank for broodstock spawning. FIGURE 8. Shallow, outdoor raceway ponds for larval rearing. FIGURE 9. Sabaki tilapia fry at 21 days. FIGURE 10. Sabaki tilapia from a commercial fish farm ready for market. FIGURE 11. Infection of Sabaki tilapia by Vibrio harveyi.