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All Journal Jurnal Pengelolaan Perikanan Tropis (Journal Of Tropical Fisheries Management) Jurnal Perikanan
Achmad Kusyairi
Faculty of Food and Fisheries Technology, Dr. Soetomo University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Environmental Science

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THE EFFECT OF KETAPANG (Terminalia catappa) LEAF EXTRACT DOSAGE ON THE SURVIVAL RATE OF 5–7 CM STRIPED CATFISH (Pangasius pangasius) FINGERLINGS INFECTED WITH Edwardsiella tarda Laili Rohmah; Muhajir Muhajir; Achmad Kusyairi
Vol 16 No 1 (2026): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v16i1.2045

Abstract

Pangasius cultivation is an important aquaculture sector in Indonesia. However, intensification programs are often accompanied by increased vulnerability to disease. One disease that frequently occurs in pangasius cultivation is the systemic bacterial disease Motile Edwardsiella Septicemia (MES), also known as Edwardsiellosis. This disease is caused by infection with the bacterium Edwardsiella tarda and causes mortality of 5-7 cm pangasius fry ranging from 80-95% for 2-8 weeks. Treating fish diseases using chemicals can trigger new problems, such as antibiotic residues, bacterial resistance, and environmental pollution. A widely developed strategy utilizes herbal ingredients as immunostimulants and antibacterial agents, one of which is extract of ketapang (Terminalia catappa) leaves. This study aims to determine the effect of the dose of ketapang leaf extract on the survival rate of 5-7 cm pangasius fry infected with Edwardsiella tarda bacteria. This study used an experimental method with a Completely Randomized Design (CRD) consisting of 5 treatments and 5 replications. This study used different doses of ketapang leaf extract. Treatment A; Ketapang leaf extract dose of 100 mg/L, Treatment B; Ketapang leaf extract dose of 200 mg/L, Treatment C; Ketapang leaf extract dose of 300 mg/L, Treatment D; Ketapang leaf extract dose of 400 mg/L, Treatment E; Ketapang leaf extract dose of 500 mg/L. The test animals used catfish seeds measuring 5-7 cm with an average weight of 3.5 g/tail. The stocking density was 3 tails/L, the experimental media used fresh water with a volume of 3 L/container. The results showed that treatment C gave the best results on the survival rate of 5-7 cm catfish seeds of 93.33%.
The Effect of Stocking Densities on Mortality of Nile Tilapia (Oreochromis niloticus) Fingerlings (3-5 cm) in a Closed Wet Transportation System from Kediri to Sidoarjo Fathonah; Sri Oetami Madyowati; Achmad Kusyairi
Jurnal Pengelolaan Perikanan Tropis (Journal of Tropical Fisheries Management) Vol 10 No 1 (2026): Jurnal Pengelolaan Perikanan Tropis (Journal Of Tropical Fisheries Management)
Publisher : Departement of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jppt.10.1.17-23

Abstract

Transportation of fish fingerlings is an important stage in aquaculture activities because it affects the success of fingerlings distribution. One of the factors influencing transportation success is stocking density during transportation. This study aimed to determine the effect of different stocking densities on the mortality of Nile tilapia (Oreochromis niloticus) fingerlings (3-5 cm) in a closed wet transportation system and determine the stocking density resulting in the lowest mortality rate. This study used an experimental method with a Completely Randomized Design (CRD) consisting of four treatments: A (100 fish/5 L), B (120 fish/5 L), C (150 fish/5 L), and D (200 fish/5 L) with six replications. Transportation was conducted for four hours with a water-to-oxygen ratio of 1:3. Parameters observed included mortality, survival rate, temperature, and pH. The results showed that stocking density affected the mortality of Nile tilapia fingerlings. The lowest mortality was observed in treatment A (1.83%), while the highest mortality was found in treatment D (7.83%). A density of 100 fish/5 L provided the best condition for minimizing mortality during transportation.
Co-Authors Fathonah Laili Rohmah Muhajir Muhajir Sri Oetami Madyowati