<![CDATA[The very low survival rate of larvae is a limiting factor in seed production for yellow fin tuna. Larvae die mass on day ten to juveniles, with a survival value of less than 0.05%. The main factor causing the death of tuna larvae is the circle of water currents in the rearing tank which results in surfacing death and sinking death. This study aims to determine whether yellowfin tuna (YFT) larvae reared at different aeration designs in rearing tanks have an impact on larvae survival. The studi was designed using a Completely Randomized Design (CRD) with three treatments and three replications: four aeration points in the middle as A, four aeration points at the bottom of B and a combination of two middle aeration points and two aeration points at the bottom C. One day old larvae were stocked in round tanks with a volume of 700 L at a density of 10.0000 individuals per tanks. Observations survival, daily growth rate, diversity coefficient and water quality were carried out for 13 days of rearing. Research result show Rearing larvae with aeration design at the bottom and a combination has a significant effect on the survival of yellow fin tuna with survival 0,31±0,04% and 0,30±0,06%. Daily length growth rate, coefficient of variation and water quality parameters in the three treatment had no significant effect. Treatments A, B and C extended value of growth rate of length 6%, 5,69% and 5,62%. Value of coefficient of diversity 4,66%, 5,69% and 4,79%.]]>
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