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Moch Prihatna Sobari
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Economics, Econometrics & Finance

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Farm Size and Relative Economic Efficiency Of Seaweed Farming Moch Prihatna Sobari
Buletin Ekonomi Perikanan Vol. 1 No. 1 (1993): Buletin Ekonomi Perikanan
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Abstract

The assessment is aimed at revealing the optimum level and farm efficiency of different sea weed farm sizes in Nusa Penida Bali. To come to these objectives, input-output relationship in sea weed production is exercised under Profit Function model. The study in indicates that most of sea weed farms in Nusa Penida have not yet realized optimum condition in production. Furthermore, most of them are under increasing return to scale. Also found in this study is the fact that medium farm size (251 - 500 m2) seem to be the most appropriate size giving the highest economic efficiency to the farmers. The policy implication for the sea weed farms being optimum are : (a) Technical improvement to optimize return to scale, and (b) price incentive to encourage sea weed farmers to develop.
Studi Perbandingan Pengelolaan Usaha Perikanan Jaring Terapung di DAS Citarum (Waduk Jatiluhur, Saguling dan Cirata) Jawa Barat Lusi Fausia; Popong Nurhayati; Wawan Okatriza; Moch Prihatna Sobari
Buletin Ekonomi Perikanan Vol. 2 No. 2 (1996): Buletin Ekonomi Perikanan
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Abstract

The development of fish culture in DAS Citarum in concentrated in Jatiluhur, Saguling and Cirata reservoirs. The main objective of these fish culture development in those three reservoirs is over come the job occupations lost of the farmers located in that areas due to the reservoir establisment. In order to develop the fish culture system, which is relatively still new, a lot of improvement is still required especially in terms of its management and technological aspects. Due to these condision, an analysis of this business is necessary to ber conducted in order so provide some information for development. This study shows that profit gained from the fish culture in these reservoir are Rp 1.495.400/pond/year in Jatiluhur. Rp 1.680.200/pond/year in Saguling and Rp 1.485.560/pond/year in Cirata.
Working Time Allocation of Seaweed Colector Households in Kecamatan Cikelet; Garut West Java Moch Prihatna Sobari; A Fachrudin; A Sujana
Buletin Ekonomi Perikanan Vol. 2 No. 2 (1996): Buletin Ekonomi Perikanan
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Abstract

Collecting seaweed was done not only by fisherman households but also by farmer household and plant labour households. This fenomena indicate that household allocated their family members for different kind of work increase household income. Household leader seems spend much time than members which indicate the role of leader in every household. Rate of participation decrease from adult to teenager and from man to women. Farmer household has higher duration time than fisheries household. Duration time of all households still quite low.
Analisis Penerapan User Fee untuk Pemanfaatan Sumberdaya Perikanan Demersal Akhmad Fauzi Syam; Moch Prihatna Sobari; Sri Dharmayanti
Buletin Ekonomi Perikanan Vol. 5 No. 1 (2003): Buletin Ekonomi Perikanan
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The alternative Instrument to reach the need of fisheries development other than conventional Instrument Is User Fee or Ashing Fee. The advantage In developing fisheries using Fishing Fee is that It take Into account many aspect especially economy and technology for each kind of fishermen. This study attempt to calculate the proper fee for [demersal] fishermen In Muara Angke, North Jakarta. The study shows that user fee Is able to be Implemented In Muara Angke In the term of maximum economic yield. The result also shows that the [demersal] fishermen In Muara Angke Is not suitable yet for implementation of user fee, caused by their Inefficiency.
Membangun Model Pengelolaan Sumberdaya Perikanan Berkelanjutan Berdasarkan Karakteristik Sosial Ekonomi Masyarakat Nelayan Tinjauan Sosiologi Antropologi Moch Prihatna Sobari; Rillus A Kinseng; Fatriyandi N Priyatna
Buletin Ekonomi Perikanan Vol. 5 No. 1 (2003): Buletin Ekonomi Perikanan
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Indonesia entities of very abundant sea and coastal resources. The resources need to be managed well in order to prevent any destruction that can lead to decrease human quality life. This research aims at developing a model of fisheries resources management in Karang Jaladri village of Ciamis Regency. The model Is based on the characteristics of fishermen socio-economics. Socio-antrophology approach is used to explain the findings. The research outcomes Is that local knowledge can facilitate the resources management. Co-management can be used as an alternative approach In Implementing sea and coastalresources management.
Analisis Portofolio Saham Perusahaan Perikanan di PT Bursa Efek Jakarta Iis Diatin; Moch Prihatna Sobari; Hanen Dyawarman
Buletin Ekonomi Perikanan Vol. 5 No. 2 (2004): Buletin Ekonomi Perikanan
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Portofolio analysis of the fisheries companies share is conducted to evaluate expected return of combination those companies share. There are four fisheries companies registered in Bursa Efek Jakarta. The four companies are PT Anugerah Tambak Perkasindo Tbk, PT Fishindo Kusuma Sejahtera Tbk. PT Darma Samudra Fishing Industries Tbk and PT Bahtera Adimina Samudera Tbk. The result show that PT Anugerah Tambak Perkasindo Tbk and PT Fishindo Kusuma Sejahtera Tbk have positive expected return and optimum share combination.
Mangrove forests have various benefits both economically and ecological The excessive uses of mangrove for only fulfilling human needs without replanting will endanger the ecosystem. Deforestation of mangrove forests into aquaculture ponds relates to many factors, both internal and extemal aspects of the aqua culturists. Survey research method was conducted at Jayamukti  Village. The research shows that majority of the respondents completed primary education. Even though the level education of a Tati Hartati; Siti Amanah; Moch Prihatna Sobari
Buletin Ekonomi Perikanan Vol. 6 No. 1 (2005): Buletin Ekonomi Perikanan
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Mangrove forests have various benefits both economically and ecological The excessive uses of mangrove for only fulfilling human needs without replanting will endanger the ecosystem. Deforestation of mangrove forests into aquaculture ponds relates to many factors, both internal and extemal aspects of the aqua culturists. Survey research method was conducted at Jayamukti  Village. The research shows that majority of the respondents completed primary education. Even though the level education of aqua culturists is low, the knowledge about the benefits of mangrove is already known, specifically about conservation and fish nursery. From statistical analysis, it can be analyzed that knowledge about the benefits of mangroves positively correlates to respondents' formal education and their experiences about mangrove. Mangroves conservation has a positive correlation with experience about mangroves and local group membership. In addition, response about mangrove rehabilitation rela:as with local aqua culturists membership, formal education and the experiences about mangrove. In order to achieve better aqua culturists behavior in managing mangrove, formal education system. group knowledge in mangrove conservation activity should be improved well.  
Fisheries development aim to increase earnings and prosperity socialize fishermen with remain to take care of sustainable of fish resources. One of pre-eminent commodity in territorial water of Pamekasan is anchovy. Anchovy catching in this region is done to use payang. Information about certainty of expense of investment and sum up advantage obtained in exploiting of anchovy resources with do not disregard its sustainability not yet been made available, so that needed by study of bio-technique Moch Prihatna Sobari; Karyadi .; Diniah .
Buletin Ekonomi Perikanan Vol. 6 No. 3 (2006): Buletin Ekonomi Perikanan
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Fisheries development aim to increase earnings and prosperity socialize fishermen with remain to take care of sustainable of fish resources. One of pre-eminent commodity in territorial water of Pamekasan is anchovy. Anchovy catching in this region is done to use payang. Information about certainty of expense of investment and sum up advantage obtained in exploiting of anchovy resources with do not disregard its sustainability not yet been made available, so that needed by study of bio-technique and financial. Actual effort and catch in 2004 each equal to 199,410 trips and 3,603,000 kilograms. Effort and catch at MSY condition each equal to 239.003 trips per year and 3,787,384.94 kilograms per year. Exploiting level in 2004 pursuant to MSY condition has reached number 95.13%. Mean investment of payang fishing unit equal to Rp30,570,000.00. Mean total cost released by Rp43,700,691.67, mean total revenue equal to Rp65,120,000.00, so that the fisherman mean profit equal to Rp21 ,419,308.33. RIC value is 1.49, payback period 1.43 year. NPV of during age of business activity of equal to Rp83,281 ,066.94, net B/C is 3.72, and IRR is 81.75%. With increase of price of solar diesel fuel, hence result of analysis sensitivity obtained by NPV of equal to Rp60,584,350.07, B/C of equal to 2.48 and IRR of equal to 65.29%. Pursuant to conducted analysis, hence the effort of fishing unit payang can be continued, but need of existence control from Department of Fishery and Marine Affair in clear licensing and arrangement hit effort conducted by fishery perpetrator (fishermen).
Indonesia is a tropical country that has high variety of mangrove. Of 15.9 thousand ha world mangrove forest total area, the 3.7 thousand ha, or 24% of it is located in Indonesia. The aims of the research are: 1) to identify both the potential and the types of utilization of mangrove ecosystem carried out by the local society; 2) to analyze the economic value of the mangrove ecosystem; and (3) to analyze the alternatives of strategic utilization for mangrove ecosystem .. The number of respondent Moch Prihatna Sobari; Luky Adrianto; Nurdiana Azis
Buletin Ekonomi Perikanan Vol. 6 No. 3 (2006): Buletin Ekonomi Perikanan
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Indonesia is a tropical country that has high variety of mangrove. Of 15.9 thousand ha world mangrove forest total area, the 3.7 thousand ha, or 24% of it is located in Indonesia. The aims of the research are: 1) to identify both the potential and the types of utilization of mangrove ecosystem carried out by the local society; 2) to analyze the economic value of the mangrove ecosystem; and (3) to analyze the alternatives of strategic utilization for mangrove ecosystem .. The number of respondents is 138 deriving from Fishery Household (RTP) and non-RTP. The data were then analyzed by using consumer surplus, household model, Total Economic Value (TEV), and Multi Criteria AnalysiS (MCA). The results show that the biggest utility is the one of crabs that reaches Rp19, 770,799.11, with the surplus consumer of Rp17,664,744,08. The highest optimum profit from the crab utilization amountsto Rp12,883,900.00 for 11 (eleven) fishery households; while the lowest profit is obtained from the utilization of prawn pond with Rp3,165,590.70. The biggest proportion is from the indirect utilization' with a percentage of 83.71% with a value of Rp1,039,474,428.00 per year. Furthermore, the Total Economic Value of the mangrove forest ecosystem in 8arru District covering 6.23 ha of mangrove forest and 127.60 ha for ponds amounts to Rp1,241 ,763,891.75. The utilization altematives put as priorities, based on the balance between indicators for both efficiency criteria and ecology criteria, between the efficiency and equity criteria, not only in the level of real interest rate of 4.·12% but also at the real interest rate of 3.55% are as follows: firstly, utilization alternative V (100% mangrove forest and 0% ponds); secondly, utilization altemative IV (8.73 ha mangrove forest and 0 ha shrimp monoculture pond, 104.05 ha mallet monoculture pond, and 21.00 ha poly-culture). Nevertheless, the utilization alternative III, II, and I cannot be given as choices in this management since their analysis values show that they are not efficient.
Tourism of such maritime in the form of activity addressed to wide society exploitedly is environmental service of coastal area and go out to sea. Development of coastal area for recreation these days tend to increase, others the tourism also to support local economics .. Kalianda Resort own some facility which complete enough as a(n) area tourism therefore draw to conduct research hit model of request recreation of maritime tourism in Kalianda Resort with model of travel cost. Traveling expense Moch Prihatna Sobari; Gatot Yulianto; Desi Nurita
Buletin Ekonomi Perikanan Vol. 6 No. 3 (2006): Buletin Ekonomi Perikanan
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Abstract

Tourism of such maritime in the form of activity addressed to wide society exploitedly is environmental service of coastal area and go out to sea. Development of coastal area for recreation these days tend to increase, others the tourism also to support local economics .. Kalianda Resort own some facility which complete enough as a(n) area tourism therefore draw to conduct research hit model of request recreation of maritime tourism in Kalianda Resort with model of travel cost. Traveling expense of mean reckoned from a transportation; released by each; every visitor from same zona. Visitor coming from outside Provinsi Lampung more opting generally to stay with consanquinity, friend, or the cheaper lodging in Bandar Lampung, so that some visitor coming from outside Provinsi Lampung to conduct dot of departure from 'Bandar Lampung. Traveling expense of mean which its amount at least that is from zona of Metro and traveling expense of biggest mean is from zona Serang. Demand curve depicted to follow constant elasticity model with price elasticity value equal to 2,4759, meaning all changes in traveling expense equal to 1%, hence mount tourist visit will change equal to 2,4759%. Relation of between traveling expense mean ( P) with visit storey (0) from its correlation coefficient that is 0,79. The correlation coefficient value express that relation! Which enough sliver between P by 0, negative value from correlation coefficient show adversative direction meaning if traveling expense ( P) mount hence mount visit ( 0) will be downhill, conversely. Result from analysiS SWOT can be depicted in diagram analysis SWOT. From calculation result got the ordinate and abscissa dot (0,152;0,259) which lay in kuadran 1. position kuadran 1 representing situation that very beneficial, where organizer Kalianda Resort own strength and opportunity which can be exploited better. Correct strategy for this condition is support aggresive development policy.
Co-Authors A Fachrudin A Sujana Akhmad Fauzi Desi Nurita Diniah . Fatriyandi N Priyatna Gatot Yulianto Hadi Nasbey Hanen Dyawarman Iis Diatin Karyadi . Luky Adrianto Lusi Fausia Nurdiana Azis Popong Nurhayati Rillus A Kinseng Sri Dharmayanti Tati Hartati Wawan Okatriza