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All Journal Journal of Aquaculture and Fish Health JURNAL SAINS DAN TEKNOLOGI PERIKANAN (JIKAN)
Zainul Arifin, Irvan Firmansyah
Aquaculture Study Program, Polytechnique Of Marine And Fishery Pangandaran, Jl. Raya Babakan, Pangandaran 46396, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Engineering Environmental Science Social Sciences

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The Effect of Stocking Density on the Growth of Ocellaris Clownfish (Amphiprion ocellaris Cuvier, 1830) With Recirculation Atiek Pietoyo; Kurniawan Wahyu Hidayat; Siti Nurazizah; Irvan Firmansyah Zainul Arifin; DH Guntur Prabowo; Fajar Tri Widianto; Irpan Mustakim
Journal of Aquaculture and Fish Health Vol. 9 No. 3 (2020): JAFH Vol. 9 No. 3 September 2020
Publisher : Department of Aquaculture

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jafh.v9i3.16191

Abstract

The ornamental fish business is now an economic driver. The ocellaris clownfish (Amphiprion ocellaris Cuvier, 1830) is one of the leading commodities of marine ornamental fish that is in great demand, especially in foreign markets. One obstacle faced by farmers in determining the appropriate density for the ocellaris clownfish rearing stage. This study aimed to evaluate the effect of stocking density on production factors, which included survival rate, and growth rate of ocellaris clownfish. Three hundred fish were used as experimental fish with an average length of 23.00 ± 2.36 mm and a weight of 0.27 ± 0.02 gather study was conducted using 4 treatment tanks with a volume of 120 L with densities of 0.17, 0.37, 0.67, and 0.80 fish/L. Observations showed that the density of 0.37 fish per L (K2) gave the best results with a survival rate of 98.18%. For the SGR parameter, the highest value was 1.14% per day in the K1 treatment. This indicated that the stocking density has a relationship with the factor of production in rearing ocellaris clownfish in the recirculation system.
Intensive System of Whiteleg Shrimp (Litopenaeus vannamei Boone, 1931) Enlargement Technique at High Salinity Akbarurrasyid, Muhammad; Sofiyani, Mauliza; Zainul Arifin, Irvan Firman Syah; Sudinno, Dinno; Astiyani, Wahyu Puji
Jurnal Sains dan Teknologi Perikanan Vol 5 No 1 (2025): APRIL
Publisher : Fisheries Science Study Program, Faculty of Science and Technology, Muhammadiyah University of Sidenreng Rappang.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55678/jikan.v5i1.1924

Abstract

White leg shrimp (Litopenaeus vannamei) rearing is an activity to produce shrimp in a certain amount. L. vannamei production is carried out using an intensive system method by considering good fish cultivation practices (CBIB) and water quality factors such as salinity. This study aims to determine the L. vannamei rearing technique at high salinity. The study was conducted using the ex post facto causal method in ponds in the Sukabumi area, West Java. The rearing activities carried out include: pond preparation, sterilization and water formation, seed distribution, maintenance, growth monitoring and harvesting and post-harvesting. The results of monitoring the growth of L. vannamei cultivated with high salinity showed that the Average Body Weight (ABW) value ranged from 1,56-25,14 g/individual (T1) and ranged from 2,1-23,98 g/individual (T2). The Average Daily Growth (ADG) value of T1 ranged from 0,04-0,65 g/day and T2 ranged from 0,06-0,53 g/day. Meanwhile, the Survival Rate (SR) value obtained is included in the high category, namely: 90,15% (T1) and 85,91% (T2). The results of water quality observations during the maintenance period are included in the optimal category according to growth requirements. Cultivation of L. vannamei with high salinity can increase growth rate and survival and optimize water quality.
Ovulation Latency: A Case Study of Koi Fish (Cyprinus rubrofuscus) Spawning using Gonadotropin Hormones with Different Doses Akbarurrasyid, Muhammad; Mahardika, Muhamad Fazli; Zainul Arifin, Irvan Firman Syah; Sudinno, Dinno
Jurnal Sains dan Teknologi Perikanan Vol 5 No 2 (2025): OKTOBER
Publisher : Fisheries Science Study Program, Faculty of Science and Technology, Muhammadiyah University of Sidenreng Rappang.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55678/jikan.v5i2.2097

Abstract

Spawning of koi fish (Cyprinus rubrofuscus) using gonadotropin hormone is a step in providing fish seeds. This study aims to determine the ovulation latency of C. rubrofuscus fish spawned using gonadotropin hormone with different doses on the resulting fecundity, fertilization rate, hatching rate and survival rate produced. The study was conducted using an ex post causal design method at a koi fish hatchery unit in the Sukabumi area. The experimental results were analyzed using ANOVA statistics to compare between treatments. The fastest ovulation latency and highest fecundity values ​​were obtained at a dose of 0.5 ml/kg (sex ratio 1:1) which was 8.25 hours with a fecundity value of 120,000 eggs. While the highest FR value was obtained at a dose of 0.3 ml/kg (sex ratio 1:2) of 88%. The best HR value was obtained at a dose of 0.2 ml/kg (sex ratio 1:3) which was 80% with an SR value of 72%. The ovulation latency value was faster at a high dose so that it affected the fecundity value (p<0.05). However, the high fecundity number did not all represent the quality of the eggs produced, this can be seen in the lower FR value compared to the dose of 0.3 ml/kg (sex ratio 1:2). The results of the study showed that the FR and HR values ​​were different due to different dose and sex ratio factors. The difference in sex ratio affects the hatching process which is caused by the uneven fertilization time of koi fish. In general, fecundity, fertilization rate, and hatching rate significantly influenced ovulation latency (p<0.05). The results of this study are expected to provide information regarding the use of gonadotropin doses in the spawning process, especially regarding ovulation latency and other spawning parameters.
Co-Authors Astiyani, Wahyu Puji Atiek Pietoyo Fajar Tri Widianto Irpan Mustakim Kurniawan Wahyu Hidayat Mahardika, Muhamad Fazli Muhammad Akbarurrasyid Prabowo, Guntur Siti Nurazizah Sofiyani, Mauliza Sudinno, Dinno