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All Journal Muadalah : Jurnal Hukum International Journal Sustainable Aquaculture
Rahayu, Dini
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Religion Biochemistry, Genetics & Molecular Biology Chemistry Decision Sciences, Operations Research & Management Education Immunology & microbiology Law, Crime, Criminology & Criminal Justice Social Sciences Other

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Inovasi Sistem Bioflok Dengan Sumber Bakteri Berbeda Untuk Budidaya Berkelanjutan Benih Kakap Putih (Lates calcalifer) Rahayu, Dini; Jamal, Endang; Pattinasarany, Agapery Y.
Indonesian Journal of Sustainable Aquaculture Vol 1 No 2 (2024): Indonesian Journal of Sustainable Aquaculture
Publisher : University of Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/aquaculture.1.2.62-70

Abstract

Biofloc is one of the advances in fish farming technology with the main principle of recycling nutrients into the culture system. Biofloc application has been widely used in freshwater aquaculture systems, but in seawater aquaculture systems it is still very limited. This study evaluated the application of bioflocs with different bacterial sources, EM4_Fishery and Nitrobac, on the growth and survival of White Snapper (Lates calcalifer) and the water quality of the aquaculture environment. This study used a completely randomised design (CRD) with three replications. A total of 19 White Snapper fish with an average weight of 6.86±0.17 g/L were put into each 14-day-old biofloc and control. Feeding was 2% of total body weight with a frequency of once a day (09.00 am). The results showed that during the experimental period, the weight of White Snapper fish decreased variably in both treatments and controls. The survival rate of White Snapper fish in the Nitrobac bacteria treatment tended to be higher than in the EM4_Fishery bacteria, but both were lower than the control with a tendency for large fish to survive longer than small fish. Concentrations of ammonia, nitrite and nitrate in the treatments at the beginning of the experiment were higher than the control but tended to decrease with the length of rearing. DO values tended to increase in the treatments compared to the control, while DO values tended to increase in the treatments compared to the control. These findings revealed that the Nitrobac as a source of biofloc bacteria in marine White Snapper culture is more effective than EM4_Fisheries, but requiring further experiments with some concern on individual fish size greater than 7 g and the biofloc older than two weeks is recommended.
ANALISIS PENERAPAN SERTIFIKAT ELEKTRONIK DI KANTOR PERTANAHAN KABUPATEN SORONG Rahayu, Dini; hujriman
Muadalah : Jurnal Hukum Vol. 5 No. 2 (2025): Muadalah : Jurnal Hukum
Publisher : Prodi Hukum Keluarga (Akhwal Syahsiyyah) IAIN Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47945/muadalah.v5i2.1977

Abstract

The implementation of electronic certificates is part of the effort to digitize the land administration system to improve efficiency, security, and transparency in land rights management. This study aims to analyze the implementation of electronic certificates at the Sorong Regency Land Office and the obstacles encountered. The methods used were observation and interviews. The results of this study indicate that the main obstacles in implementing this system include mismatches in owner data between ID cards (KTP) and analog certificates, as well as the relatively time-consuming validation process for land books and measurement letters. Nevertheless, electronic certificates provide benefits such as increased service efficiency, improved data security, and improved land transactions. To optimize their implementation, accelerated digitalization, simplified procedures, increased outreach, and strengthened regulations are needed. With these steps, the electronic certificate system can become a modern solution for land administration in Indonesia.
Co-Authors Agapery Y. Pattinasarany Arjoni, Arjoni Endang Jamal Hujriman Hujriman Sri Hartati Yeni Afrida, Yeni