Articles

Management Effectiveness of Southeast Aru Islands Marine Conservation Area Dangeubun, Fernando Dayandri Willem; Wiryawan, Budy; Mustaruddin, .; Purbayanto, Ari
JURNAL MANAJEMEN HUTAN TROPIKA Vol 19, No 2 (2013)
Publisher : Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (526.242 KB) | DOI: 10.7226/jmht.19.2.119

Abstract

Southeast Aru Islands Marine Conservation Area (SE Aru MCA) has been existed for nearly 21 years, a period that long enough for a timely evaluation about how far improvement of management has been made in the area in question, i.e. whether management has improved situation of local communities and marine resources availability in the area. This study, therefore, aims at assessing management effectiveness and impacts of SE Aru MCA. Results suggest that the MCA, which was originally established as a marine nature reserve (Cagar Alam Laut, CAL) in 1991 and changed status into marine sanctuary in 2009, has not yet produced the expected positive impacts. Assessment using available tools indicated that the management level of SE Aru MCA is at level 1, with percentage of 34.12%, meaning it is still at initiation stage and less effective in terms of management outcomes. Index of conservation area effectiveness with a value of 0.387 shows that the overall conservation area in the 3 categories mentioned above is less effective, therefore conservation effect has not been able to solve area problems. It is concluded that, after more than 20 years exists in the area, few benefits have been produced by SE Aru MCA for local people associated with it and biological resources in it.Keywords: marine sanctuary, conservation, effectiveness, impactDOI: 10.7226/jtfm.19.2.119
Keselamatan Kerja pada Operasi Penangkapan Ikan Cantrang Nelayan Tanjung Sari, Kabupaten Rembang (Safety Assessment of cantrang operation in Tanjung Sari, district Rembang-Central Java) Sasmita, Suparman; Martasuganda, Sulaeman; Purbayanto, Ari; Hestirianoto, Totok
Buletin PSP Vol 21, No 1 (2013): Buletin PSP
Publisher : Institut Pertanian Bogor

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Abstract

Aktivitas nelayan di perairan laut mempunyai resiko yang tinggi. Pengoperasian alat tangkap cantrang di kapal berukuran 20 GT membutuhkan 13 orang nelayan. Aktivitas nelayan sangat terbatas di area kapal, terutama pada saat kegiatan penangkapan berlangsung. Tujuan studi ini adalah mengidentifikasi kemungkinan kecelakaan, tingkat resiko dan upaya penanggulangan kecelakaan pada pengoperasian cantrang. Tahapan kerjanya mempunyai resiko yang tinggi, dimulai dengan setting, towing dan hauling, serta aktivitas memasak. Kemungkinan kecelakaan tertinggi pada saat hauling yaitu aktivitas penarikan tali, dimana sering terjadi tali kusut di kelos gardan. Indeks resiko saat hauling termasuk sedang dan tinggi. Resiko tinggi sering mengakibatkan cedera anggota tubuh dan meninggal dunia, sedangkan aktivitas sedang berupa tabrakan, dan jatuh saat penarikan jaring. Kata kunci: cantrang, resiko, keselamatan
CHALLENGING FOR SEAGRASS MANAGEMENT IN INDONESIA adiarti, N; Riani, Etty; Djuwita, Ita; Budiharsono, Sugeng; Purbayanto, Ari; Asmus, Harald
JOURNAL OF COASTAL DEVELOPMENT Vol 15, No 3 (2012): Volume 15, Number 3, Year 2012
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

Seagrasses, one of the important ecosystems in Indonesian coastal waters, have declined mostly due to a variety of multi-sector (i.e. ecology, socio-economy, technology and institution) anthropogenic disturbances. The decline and loss of seagrass meadows will have an effect not only on biodiversity and fisheries productivity within the ecosystems but also on the adjacent ecosystems (coral reef and mangrove forest), and even the effect will spread out far to the outside of the areas where seagrass grow.  Seagrass ecosystems management in Indonesia is urgently required as part of fisheries management. However, this concept has not been understood by most of Indonesian people, including some government officials. Consequently, the seagrass ecosystems are still marginalized in the coastal resource management practices in Indonesia. In order to sustain fisheries productivity, knowledge of impact scales of each seagrass-related multi-sector human activities are very important as one of basic requirements in designing an effective seagrass management.
SISTEM BAGI HASIL PADA USAHA PENANGKAPAN MADIDIHANG SKALA KECIL DI KABUPATEN SERAM BAGIAN BARAT Tawari, Ruslan HS; Simbolon, Domu; Purbayanto, Ari; Taurusman, Am Azbas
Buletin PSP Vol 21, No 2 (2013): Buletin PSP
Publisher : Institut Pertanian Bogor

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Abstract

Penelitian ini bertujuan untuk 1) mengevaluasi sistem bagi hasil yang berlaku di Kabupaten Seram Bagian Barat berdasarkan aspek proporsional, berkeadilan, berkeuntungan, dan berkelanjutan; 2) mensimulasikan alternatif pola bagi hasil dengan mempertimbangkan kebutuhan minimum nelayan dan pemilik; serta 3) menentukan pola bagi hasil yang ideal bagi kedua belah pihak. Metode analisis yang digunakan adalah analisis profit, analisis upah minimum provinsi (UMP), analisis break event point (BEP), serta simulasi. Hasil penelitian menunjukan bahwa: 1) pola bagi hasil yang berlaku di lokasi studi belum memenuhi aspek bagi hasil yang proporsional, berkeadilan, berkeuntungan dan berkelanjutan 2) pendapatan nelayan berdasarkan pola bagi hasil yang berlaku masih berada di bawah UMP ideal, 3 )sistem bagi hasil yang ideal adalah dengan pola 52:48, dimana pemilik mendapatkan bagian 52 persen dan nelayan memperoleh 48 persen dari hasil tangkapan bersih.
ANALISIS KEBERLANJUTAN PENGELOLAAN EKOSISTEM TERUMBU KARANG DI KAWASAN KONSERVASI LAUT DAERAH BINTAN TIMUR KEPULAUAN RIAU Purbayanto, Ari; Budiharso, Sugeng; Damar, Ario
Jurnal Perikanan Dan kelautan Vol 17, No 01 (2012)
Publisher : Jurnal Perikanan Dan kelautan

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Abstract

Coral reef ecosystem management in Regional Marine Conservation Area(RMCA) Bintan Timur is still a sectoral and not based on the consideration ofmulti-sectoral and multi-dimensional, so that it can cause environmental damageand social problems. The objectives of this study are: (1) to analyze the index andsustainability status of coral reef management in RMCA Bintan Timur, and (2) toanalyze the key factors for sustainable management of coral reef ecosystems.Sustainability analysis conducted by the method of Multi Dimensional Scaling(MDS) approach with Rap-Insus COREMAG techniques (Rapid Appraisal-IndexSustainability of Coral Reef Management). Analysis of key factors ofsustainability management performed a prospective analysis of the sensitivityfactors (leverage factor) of the MDS and the factors from the analysis ofstakeholders needs. The results showed that the status of sustainability of coralreef management in RMCA Bintan Timur was quite sustainable with amultidimensional index of 55.02. There were ten key factors that influence to thesustainability, namely the condition of coral reefs, protected area, the publicrevenue, tourism employment, human resource availability, government policies,coordination among stakeholders, community compliance, environmental legalcounseling, and surveillance infrastructure.
Effect of Bait on Feeding Behavior Pattern of Grouper (Ephinephelus fuscoguttatus) Dian P Fitri, Aristi; Purbayanto, Ari
Jurnal Ilmu-Ilmu Perairan dan Perikanan Indonesia Vol 16, No 1 (2009): Juni 2009
Publisher : Institut Pertanian Bogor

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Abstract

Study on fish behavior is necessary to establish knowledge on the use of bait effectiveness. The objective of the research was to analyze response and feeding behavior of grouper (Ephinephelus fuscoguttatus) on different chemical composition of bait. The research was conducted by laboratory experimental method. The fish used was 200 mm in total length. The baits used were shrimp (Metapenaeus elegans) and trash fish (Sardinella gibbosa). Data collection consist of response time and feeding behavior pattern of Ephinephelus fuscoguttatus on bait with soaking time of 1, 7, and 12 hours. Chemical composition of each bait consisting of proximate, amino acid, fatty acid, and ammonia were analyzed based on soaking time. Data was analyzed using t-student test. The results showed that response time of Ephinephelus fuscoguttatus to shrimp bait and fish was insignificantly difference (p > 0.05). The feeding response of Ephinephelus fuscoguttatus with soaking time difference of shrimp bait and trash fish during 1 and 7 hours was significantly difference (p < 0.01). The bait soaking time until 12 hours was insignificantly difference (p > 0.05). Longer bait soaking time (until 12 hours) would decrease bait chemical composition that influenced on decrease feeding response of Ephinephelus fuscoguttatus.Key words: baits, feeding habit, Ephinephelus fuscoguttatus.
Financial Analysis of Surimi Processing by Modern and Semi-Modern Scale Djazuli, Nazori; Wahyuni, Mita; Monintja, Daniel; Purbayanto, Ari
Jurnal Pengolahan Hasil Perikanan Indonesia Vol 12, No 2 (2009): Jurnal Pengolahan Hasil Perikanan Indonesia
Publisher : Departement of Aquatic Product Technology

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Abstract

Development of surimi processing in the industry regions which have huge potential of rawmaterial, can be done through aiming at the business feasibility existed either by modern surimi processingbusiness as weel as semi modern. In general, theaim of this research is to analyze the feasibility business ofsurimi processing either by modern surimi processing business or semi modern. Sampling of surimiprocessing business for modern surimi processing was located in Pekalongan, Central Java Province andsemi modern surimi processing was located in Pulau Moro, Riau Island Province. Data collection was doneby questionnaire and interview to stakeholders of surimi processing industry. Method of analysis wascarried out by using criteria of financial feasibility i.e. Payback Period (PB), Net Present Value (NPV),Internal Rate of Return (IRR), Profitable Index (PI), Net B/C, and Break Event Point (BEP). Result ofresearch showed that surimi processing business either by modern surimi processing business or semimodern is feasible shown from (1) Value of NPV for PT. A is Rp.22,647,400,670 and PT.B isRp.29,866,797,485 for 10 years, (2) Value of IRR at surimi business in PT.A is 49.28% and PT.B is56.11%, (3) PT. A needs 2 years 1 month and 6 days to return the investment that has been invested insurimi processing, meanwhile PT.B needs 1 year 10 months and 6 days, (4) Value of profitability indexPT.A is 2.43 and PT.B is 2.78, and (5) figure of Net B/C Ratio PT.A is 1.89, and PT.B has figure of NetB/C Ratio 1.58.Keywords : financial feasibility, surimi product
Modification Technology of Surimi Processing through Utilization “By-Catch” of Shrimp Net in Arafura Sea Djazuli, Nazori; Wahyuni, Mita; Monintja, Daniel; Purbayanto, Ari
Jurnal Pengolahan Hasil Perikanan Indonesia Vol 12, No 1 (2009): Jurnal Pengolahan Hasil Perikanan Indonesia
Publisher : Departement of Aquatic Product Technology

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Abstract

Utilization of shrimp net in Arafura Sea produced by–catch with average ratio 1:12 between main capture and by–catch. The low economic value, unavailability of suitable processing technology, and constraint in management by–catch lead to discharge the majority of by-catch to the sea. The aims of this research were to analyze the availibility of raw material of surimi from by–catch of shrimp net in Arafura Sea and modified processing technology from mixture of fish species by prepared minced fish in vessel and surimi processing of mixture fish  species in land and followed by quality assessment of surimi. Result of the research showed that number of 502 vessels operated – mostly by–catch – per vessel unit per year was 795 metric ton, therefore the estimation of volume of by–catch per year in Arafura was 399,000 metric ton. Fish species of by-catch that suitable processed into surimi was 32% or 128 metric  ton/year or equivalent to 41,000 metric ton of surimi per year. Result of cut off technology analysis showed that frozen minced fish could be stored for 5 weeks at –18oC which constantly produced good surimi (folding test: A, teeth cutting test:7 and gel strength > 500 g/cm2). Producing “minced fish” in fishing vessels would decrease weight to 60% and volume fourfold compose to whole fish without decreasing the quality of surimi produced.Keywords : by–catch, minced fish, non economic fish, surimi, quality of surimi.
ANALISIS INDRA PENGLIHATAN IKAN KERAPU MACAN (Epinephelus fuscoguttatus) DAN HUBUNGANNYA DALAM MERESPONS UMPAN Riyanto, M; Purbayanto, Ari; Natsir, D S.S.
Jurnal Marine Fisheries Vol 2, No 1 (2011): Marine Fisheries
Publisher : Jurnal Marine Fisheries

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Abstract

The visual organ in fish has an important role in ensuring its survival. Fish can respond to bait or food with its visual organ. The objectives of this research are to analyse the visual performance of grouper (cone cell morphology, the visual axis, and visual acuity) and to analyse the relation between visual senses with fish behavior response to the bait. This research was conducted in the laboratory by means of the determination of fish retina histology method and behavior of fish. The morphology retina of grouper consists of a single cone and double cone which form a mosaic structure, the visual axis was identified at upper-fore with the angle of 26.8o.The visual acuity of grouper was low in index values with ranged from 0.06 to 0.07 for fish with a total length of 200 to 300 mm, the maximum sighting distance to the bait with the diameter of 20 mm size ranged from 3.93 to 4.74 m, the bait with 25 mm diameter size range from 4.91 to 5.92 and bait with a diameter of 30 mm size ranged from 5.89 to 7.11 m. The frequency of fish closed the bait distance of 30 cm was 45.83%, 25 cm was 33.33% and 20 cm was 20.83%, respectively.
ZONASI PEMANFAATAN KAWASAN PERIKANAN TANGKAP DI TELUK BANTEN (Zonation of Utilization Fishing Zone in Banten Bay) Ernaningsih, D.; Simbolon, Domu; Wiyono, Eko Sri; Purbayanto, Ari
Jurnal Marine Fisheries Vol 2, No 2 (2011): Marine Fisheries
Publisher : Jurnal Marine Fisheries

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Abstract

Utilization of fishing area in Banten Bay by various activities may cause multi sectors conflicts related to management of the bay. The integrated zone system in that area has not been established yet; therefore it is needed to be studied. The objectives of this study were to 1) determine fishing season and fishing ground; 2) determine indicators and criteria of fishing zone; 3) establish fishing zone. The study was conducted in four fish landing centers which are located in Karangantu, Terate, Wadas, and Kepuh from January to April 2010. Data were collected by surveying analyzed using the fishing season index analysis, relationship analysis between sea surface temperature, chlorophyll-a and fish abundance, and GIS analysis. Based on the results, it were revealed that 1) peak fishing season of pelagic fish was from November to January and demersal fish was from November to December; 2) the catches from fishing grounds surrounding Panjang island were anchovies, trevallies, squids, Indian mackerels, pony fishes, Fringescale sardinella; surrounding Pamujan besar island were threadfin bream, shrimps; and surrounding Tunda island were eastern little tuna, narrow barred king mackerels, black pomfret, red snapper, great trevally, scads, mullets, squids; 3) development indicators of fishing zone were (i) feasibility of fishing ground, (ii) compatibility of fishing gears with fishing grounds, (iii) possibility of conflicts, (iv) infrastructure, (v) carrying capacity of environment; 4) Banten bay water was divided into three fishing zones, they were (i) passive zone, (ii) passive and outboard motor zone, (iii) active and inboard motor zone.Key words: fishing ground, fishing zone, utilization