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All Journal Journal of Fish Health Indonesian Journal of Multidisciplinary Science
Liga Insani
Jembrana Marine and Fisheries Polytechnic
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SURVIVAL RATE of TIGER GROUPER LARVA (Epinephelus fucoguttatus) HOUSEHOLD SCALE ON THE NORTH COAST of BALI I Komang Yudha Wirawan; Liga Insani; Muh. Sulaiman Dadiono
Journal of Fish Health Vol. 1 No. 2 (2021): Journal of Fish Health
Publisher : Aquaculture Department, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (304.222 KB) | DOI: 10.29303/jfh.v1i2.483

Abstract

Tiger grouper (Epinephelus fuscoguttatus) hatchery at the household scale has contributed to the increase in national grouper seed production. The main problem in tiger grouper cultivation is the availability of superior seeds. Where superior tiger grouper seeds must have fast growth, be resistant to new environments, low FCR, have perfect morphology and be resistant to. Superior seeds of tiger grouper can be seen from the value of Survival Rate (SR), where superior seeds will have a much higher SR when maintained. The purpose of this study was to determine the Survival Rate of tiger grouper hatchery in household-scale hatcheries located on the North Coast of Bali as the main parameter and water quality as a supporting parameter. Methods of data collection is done by using 4 ways: survey, active participation, observation, and interviews. Survival rate data analysis was carried out by performing calculations based on the SR calculation formula and analyzed descriptively. The results of observations of water quality are classified as good for the value of Salinity (33-35 ppt), Temperature (28-29.4 oC), and DO (6-6.5 ppm). While the pH value can be said to be not good for tiger grouper hatchery and rearing with a pH value of (7.3-7.4). The result of the calculation of the Survival Rate is 20% with a total of ± 24,000 seeds. From the percentage of survival rate, it can be said that the survival rate of tiger grouper larvae in this household-scale hatchery is still low. However, it should be noted that a low survival rate in grouper hatcheries does not always affect the value of profits and losses of a grouper hatchery business.
Potensi Invasif Ikan Louhan (Flowerhorn) di Waduk Lahor Malang Sri Andayani; Liga Insani; Rima Oktavia Kusuma; Muh. Sulaiman Dadiono
Indo Journal of Multidisciplinary Science Vol 1 No 1 (2025)
Publisher : PT. Gyandharma Global Media

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Abstract

Flowerhorn fish is a predatory fish that is a cross between Cichlasoma, Paraneetroplus and Amphilophus. In Indonesian waters, flowerhorn fish is very dangerous to the local ecosystem because it can be the main predator. This study reports the catch of flowerhorn fish in large numbers in Lahor Reservoir, Malang, East Java, so it has the potential to become an invasive fish. The research method uses a desk study method with secondary data and field observations by sources. The catch of flowerhorn fish in Lahor Reservoir is an important note to maintain the natural ecosystem of the reservoir from the invasiveness of this fish. Flowerhorn fish species in Lahor Reservoir must be mapped, monitored and regulated with strict rules so that the balance of the reservoir ecosystem is maintained. A description of the morphology of the flowerhorn fish species caught is included in the discussion.
Co-Authors I Komang Yudha Wirawan Muh. Sulaiman Dadiono Rima Oktavia Kusuma Sri Andayani