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Add To Calendar 28/04/2016 08:50:0028/04/2016 09:10:00Africa/JohannesburgAsian-Pacific Aquaculture 2016SUSTAINABILITY OF THE MASS PRODUCTION OF Nannochloropsis oculata THROUGH ALKALINITY STABILITY OF  CULTURE MEDIA Crystal 2The World Aquaculture Societyjohnc@was.orgfalseanrl65yqlzh3g1q0dme13067DD/MM/YYYY

SUSTAINABILITY OF THE MASS PRODUCTION OF Nannochloropsis oculata THROUGH ALKALINITY STABILITY OF  CULTURE MEDIA

M Syaichudin, A Gafur, Endah S, Suhardi ABS
Center for Brackishwater Aquaculture Development Takalar, E-mail: syaichu_1973@yahoo.com


 

Mass production Nannochloropsis oculata for aquaculture, requires a qualified biomass input. Classic problem that extreme weather conditions are hot and rainy, thereby disrupting the exponential growth of the culture period were low and short lived. In tackling the shortage of free carbon dioxide in the culture medium, then the increase in alkalinity engineering technology through the addition of calcium carbonate (chalk) so as to stabilize the alkalinity of the culture medium Nannochloropsis oculata. The engineering goal to improve the optimization of mass culture Nannochloropsis oculata growth by maintaining alkalinity stability culture media. Testing is done with the addition of dolomite on the third day, fifth and so on, for 15 days, the control without the addition of lime in 20 m3 Tank. Based on the results of testing at extreme conditions of salinity media that is 35 ppt, the testing bath to survive until the end of the DOC 15 with a salinity of 41 ppt, while dying on DOC control 9. The level of alkalinity control continues to decline, while in the tub can be maintained on condition testing optimal. Nannochloropsis oculata peak growth at the highest test tub on DOC 5-14, while the exponential growth in control tanks only on DOC 5-8. This proves that this technology can extend the life span of the exponential growth of the culture Nannochloropsis oculata mass scale, and can be a reference to improve the stability of plankton growth in normal and extreme winter conditions.




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