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All Journal Jurnal Intek Akuakultur Indonesian Aquaculture Journal Media Akuakultur
Tri Heru Prihadi
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Journal : Jurnal Intek Akuakultur

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Kelangsungan Hidup Larva Yellow Fin Tuna (YFT) yang Dipelihara dengan Desain Aerasi Berbeda pada Bak Bundar Yuliana Asri; Kukuh Nirmala; Tri Heru Prihadi; John Harianto Hutapea
Intek Akuakultur Vol. 7 No. 1 (2023): Intek Akuakultur
Publisher : Program Studi Budidaya Perairan Universitas Maritim Raja Ali Haji

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Abstract

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%.
Co-Authors Bahtiar Sah Putra Deni Radona Deni Radona Fauziah Azmi Fitriyah H. Khotimah Irin I. Kusmini Joel Aubin John Harianto Hutapea Kukuh Nirmala Kurniawan Kurniawan Muhammad Haritza Laitte Nurdin, Muh Saleh Riris Yuli Valentine Suri Purnama Febri Teuku Fadlon Haser Yuliana Asri