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All Journal Journal of Marine Research Jurnal Pengelolaan Perikanan Tropis (Journal Of Tropical Fisheries Management) Journal of Fisheries & Marine
Wibowo, Ichsan Suryo
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Environmental Science

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Metode Lepas Dasar dengan Net Bag pada Pertumbuhan Kappaphycus alvarezii (Doty) Wibowo, Ichsan Suryo; Santosa, Gunawan Widi; Djunaedi, Ali
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (768.738 KB) | DOI: 10.14710/jmr.v9i1.25783

Abstract

ABSTRAK: Parameter keberhasilan dari kegiatan budidaya rumput laut diukur berdasarkan dari hasil produksi thallus yang dibudidayakan. Metode budidaya yang digunakan dalam kegiatan budidaya rumput laut merupakan salah satu faktor penting yang dijadikan sebagai acuan keberhasilan. Penelitian ini bertujuan untuk mengkaji pertumbuhan dari rumput laut K. alvarezii yang dibudidayakan dengan metode lepas dasar menggunakan net bag yang dimodifikasi. Materi yang digunakan dalam penelitian ini adalah bibit rumput laut K. alvarezii (F2) yang diperoleh dari pembudidaya di Perairan Pulau Kemujan, Kepulauan Karimunjawa. Metode penelitian yang digunakan adalah eksperimen dengan rancangan percobaan berpola Rancangan Acak Lengkap. Perlakuan yang diujikan adalah rumput laut K. alvarezii yang dibudidayakan dengan perlakuan A (satu lapis jaring), perlakuan B (dua lapis jaring), dan perlakuan C (tiga lapis jaring). Penanaman bibit dilakukan selama 42 hari sejak penanaman. Parameter pengamatan meliputi laju pertumbuhan spesifik dan parameter kualitas perairan. Hasil penelitian menunjukkan terdapat pengaruh sistem budidaya lepas dasar menggunakan net bag (P < 0,05) terhadap laju pertumbuhan spesifik K. alvarezii. Metode net bag dengan satu lapis jaring memiliki pertumbuhan terbaik pada 4,95 ± 0,70 %g/hari. ABSTRACT: The success parameters of seaweed farming activities are measured based on the results of cultivated thallus. The cultivation method used in seaweed farming activities is one of the important factors used as a reference for success. This study aimed to assess the growth of K. alvarezii that was cultivated by employing off bottom method in a modified net bag system. The material used in this study was K. alvarezii (F2) seaweed seeds obtained from cultivators in Kemujan Island, Karimunjawa Islands. The research method used was an experiment with a completely randomized design patterned. The treatments tested were K. alvarezii which was cultivated by treatment A (single net), treatment B (double net), and treatment C (triple net). Planting of seeds was carried out for 42 days after planting. Observation parameters include specific growth rate and water quality parameters. ANOVA test results showed that there was a significant influence (P <0.05) on the absolute weight and specific growth rate of K. alvarezii. Results showed that single net bag method given the best growth rate at 4.95 ± 0.70 %g/day.
Marine Suitability Assessment for Mariculture: Combining GIS and AHP Technique in Dampier Strait Conservation Area, West Papua Province, Indonesia Ichsan Suryo Wibowo; Ali Mashar; Niken Tunjung Murti Pratiwi; Fery Kurniawan
Jurnal Ilmiah Perikanan dan Kelautan Vol. 15 No. 2 (2023): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v15i2.40172

Abstract

Highlight Research Mariculture is one of the activities that can pressure the aquatic environment. Mariculture activities are carried out by considering the sustainability aspects of environmentally friendly implementation. The suitability of the location for mariculture activities refers to the geographical and hydro–oceanographic conditions seen from the waters' physical, chemical, and biological parameters. The suitability index produced using multiple approaches (GIS-based AHP) can be used to determine the potential locations for mariculture development.   Abstract Potential mariculture activities in the Dampier Strait Conservation Area, which are indicated by the availability of water space and local commodities, can have a multiplier effect on socio-ecological aspects. Therefore, reasonable development steps are needed to carry out environmentally friendly aquaculture. This study aims to determine the potential use of water space for the development of mariculture activities based on the level of suitability using multiple approaches. Suitability analysis was carried out with Geographic Information System (GIS) based on the Analytical Hierarchy Process (AHP) by considering the area's characteristics using several aspects seen from the geographical conditions and water quality (physical, chemical, and biological). Based on the suitability analysis results, the potential water space that can be used for mariculture development activities, namely seaweed and pearl oyster cultivation was 1,130.45 ha (0.49% of the overall space allocation 232,588.59 ha). A justification was then carried out to determine a suitable location in terms of its accessibility and environmental friendliness. The analysis has shown promising results in determining potential locations for developing mariculture activities for seaweed and pearl oyster commodities based on sustainable and environmentally friendly cultivation.
Assessing Economic Carrying Capacity through Financial Feasibility Analysis for Sustainable Seaweed and Pearl Oyster Mariculture in the Dampier Strait Conservation Area Ichsan Suryo Wibowo; Ali Mashar; Niken Tunjung Murti Pratiwi; Fery Kurniawan; Al Izzha Kusumaningtyas; Istna Nabila Zulfa; Masruhin Masruhin
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.10.1.36-42

Abstract

A financial feasibility analysis in mariculture activities is necessary to ensure the business can provide economic benefits and operate sustainably. The Dampier Strait Conservation Area has the potential to develop seaweed and pearl oyster cultivation businesses. However, as a conservation area, its utilization must consider environmental carrying capacity. This study aims to assess the financial feasibility of seaweed and pearl oyster cultivation in the Dampier Strait Conservation Area as a basis for optimal, environmentally friendly business planning that provides economic benefits for the local community. Financial feasibility is measured using a cost-benefit analysis method. The first step is to determine the efficiency of component use and cost structure in the aquaculture business planning scheme. The results of the cost and benefit calculations are used to determine the capacity for developing the aquaculture business, which includes an assessment of several aspects of future investment. Based on the results of the cost-benefit analysis, the marine aquaculture business for both commodities is feasible for development, having met business feasibility requirements based on the comparison of cost and benefit values, the percentage of profit, the rate of return on assets, the difference and comparison between expenses and revenues, and the payback period. All stages of the analysis have been able to produce comprehensive results to achieve optimal and sustainable utilization of the area through the development of mariculture activities. This has taken into account the continuity between environmental potential and human demands for utilizing ecosystem services in an integrated manner.
Co-Authors Ali Djunaedi Ali Mashar Ali Mashar Fery Kurniawan FERY KURNIAWAN Gunawan Widi Santosa Istna Nabila Zulfa Kusumaningtyas, Al Izzha Masruhin Masruhin Niken Tunjung Murti Pratiwi Niken Tunjung Murti Pratiwi