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Grasiano Warakano Lailossa
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INDONESIA
Jurnal Sumberdaya Akuatik Indopasifik
Published by Universitas Papua
ISSN : -     EISSN : 25500929     DOI : https://doi.org/10.46252/jsai-fpik-unipa.2022.Vol
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Environmental Science
Journal name: Jurnal Sumberdaya Akuatik Indopasifik. Focus and scope of Jurnal Sumberdaya Aquatik Indopasifik are research paper in term of fisheries and marine science which can be seen also in some of study aspect such as the conservation, management, aquaculture, enginering, biology, chemistry, ecology, environment, social economic, and tourism. The study aspect should focus on the fisheries and marine science object. p-ISSN: 2550-1232 e-ISSN: 2550-0929 Acreditation: SINTA 3
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Perairan
Articles 172 Documents
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Analisis Laju dan Kandungan Nutrien pada Sedimen di Instalasi Transplantasi Karang Metode Vertikal Pulau Samalona Kota Makassar Rahmat Januar Noor; Muhammad Isman; Muhammad Imran Lapong; Fathuddin Fathuddin
Jurnal Sumberdaya Akuatik Indopasifik Vol 8 No 1 (2024): Februari
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46252/jsai-fpik-unipa.2024.Vol.8.No.1.382

Abstract

Samalona Island is a small island that administratively belongs to the inner zone of the Spermonde Islands region with low live coral cover. One effort to improve coral conditions is to carry out vertical transplantation, but hydro-oceanographic conditions are thought to be an inhibiting factor, including sediment. The research carried out aims to determine the suitability of oceanographic parameters, estimate sediment rates, and determine the phosphate and nitrate in sediments. The research method used a field experiment method by taking water and sediment samples and installing sediment traps for 15 days. The parameters measured in situ are temperature, pH, current speed, salinity, and dissolved oxygen, while the ex-situ test is the dry weight of sediment, TSS, nitrate, and phosphate concentrations. Data analysis uses descriptive statistics and is categorized according to the evaluation instrument used. The research results show that the values for temperature, pH, current speed, salinity, and dissolved oxygen meet the standard criteria for coral-based on PP 21/2022. The sediment rate during the research period was 0,003 – 0,015 gr/cm2/day, so it was categorized as having the potential damage to corals with a mild to severe impact level. The nitrate concentration in sediment ranges from 0,19 – 0,25 ppm while phosphate ranges from 0,35 – 0,72 ppm, so it can be said to be waters with a medium trophic level (mesotrophic). The current speeds and sediment rates potentially accelerate nutrient concentrations and cause sediment resuspension, thereby closing coral polyps, especially on corals closest to the substrate where vertical coral transplant installations are installed.
Dinamika Populasi Bakteri Pada Budidaya Ikan Koi (Cyprinus rubrofuscus) Sistem Resirkulasi I Made Dedi Mahariawan; Sri Andayani; Heny Suprastyani; Feni Tri Sa’adati
Jurnal Sumberdaya Akuatik Indopasifik Vol 8 No 1 (2024): Februari
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46252/jsai-fpik-unipa.2024.Vol.8.No.1.406

Abstract

Koi fish (Cyprinus rubrofuscus) is one of the aquaculture commodities that is highly marketable because of its unique color pattern and body shape. The prevalence of parasites and pathogenic agents in Koi fish among farmers poses challenges and leads to the occurrence of numerous illnesses. Water quality management is implemented in an effort to prevent several infectious microorganisms. The application of a recirculation system is used to enhance water quality and bolster the disease resistance of Koi fish. The objective of this study was to evaluate the application of RAS technology in the koi fish culture under different filter media on bacterial density. This study used four treatments, namely treatment A (RAS with a dacron filter and pumice), B (RAS with a dacron filter and sand), C (RAS with a sand and pumice filter), and K (control without a recirculation system). The parameter observed in this study was the density of bacteria in the koi fish rearing-media. These findings demonstrated that the utilization of various filters had an impact on bacterial density. Treatment C (RAS with sand and pumice filter) exhibited the greatest bacterial density with an average value exceeding 3.4 log CFU. mL-1 from the first week to the third week. The density of nitrifying bacteria in the koi fish production system is positively influenced by the high-quality maintenance practices that are maintained under optimal conditions.

Page 18 of 18 | Total Record : 172

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