scholarly journals KEBERLANJUTAN PERIKANAN RAJUNGAN INDONESIA: PENDEKATAN MODEL BIOEKONOMI

2018 ◽  
Vol 9 (2) ◽  
pp. 71
Author(s):  
Umi Muawanah ◽  
Hakim Miftahul HUda ◽  
Sonny Koeshenderajana ◽  
Duto Nugroho ◽  
Zuzy Anna ◽  
...  
Keyword(s):  
Open Access ◽  
Fisheries Management ◽  
Swimming Crab ◽  
Portunus Pelagicus ◽  
Catch Data ◽  
Resource Sustainability ◽  
Maximum Economic Yield

Perikanan Rajungan (Portunus pelagicus) di Indonesia memberikan devisa sebesar US$ 246,14 juta dari ekspor pada tahun 2015 dan menghidupi 65.000 nelayan dan 130.000 pengupas rajungan di Indonesia. Berdasar nilai strategisnya ini, pemanfaatan perikanan rajungan perlu memperhatikan asas keberlanjutan sumber daya. Penelitian ini bertujuan menganalisa keberlanjutan pemanfaatan sumberdaya rajungan di Indonesia menggunakan model bioeokomi dari data hasil tangkapan rajungan di Wilayah Pengelolaan Perikanan (WPP) RI tahun 1977-2014. Hasil penelitian menunjukkan bahwa pemanfaatan sumberdaya rajungan di Indonesia memberikan rente ekonomi yang tinggi pada kondisi Maksimum Sustainale Yield (MSY) dan Maksimum Economic Yield (MEY) sedangkan pada rezim open access (OA) tidak memberikan rente ekonomi. Mengacu pada hasil penelitian maka pengaturan pemanfaatan sumberdaya rajungan dengan upaya dan produksi yang mendekati batas MEY diharapkan dapat menjamin keberlanjutan usaha rajungan baik secara biologi maupun ekonomi. Adapun pemanfaatan secara open access (OA) hendaknya dibatasi atau dihindari karena kondisi ini tidak dapat menjamin berkelanjutan perikanan rajungan baik secara biologi maupun ekonomi.The Blue Swimming Crab (BSC, Portunus pelagicus) fishery  in Indonesia provides revenue of US$ 246.14 million rom exports in 2015 and supports 65,000 fishermen and 130,000 pickers in Indonesia. Based on this value, the harvest of BSC fishery should consider the principle of resource sustainability. This study aims to analyze the sustainability of utilization of crab resources in Indonesia using bioeocomic model applied to the BSC catch data from all Fisheries Management Areas (FMA) in Indonesia from year 1977 until 2014. The results show that BSC harvest in Indonesia gives high economic rents under the conditions of Maximum Sustainale Yield (MSY) and Maximum Economic Yield (MEY) while the open access regime does not provide any economic rents. Referring to the results of the study, the arrangement of utilization of crab resources with efforts and production close to the limit of MEY is to be expected to ensure the continuity of the crab business both biologically and economically. The direction toward open access should be limited or avoided because this condition will lead to the unsustainable practices of the BSC fishery both biologically or economically. 

scholarly journals PENGELOLAAN BERKELANJUTAN PERIKANAN TANGKAP WADUK CIRATA : MODEL BIO-EKONOMI

2016 ◽  
Vol 11 (2) ◽  
pp. 161
Author(s):  
Zuzy Anna
Keyword(s):  
Parameter Estimation ◽  
Open Access ◽  
Fisheries Management ◽  
Economic Model ◽  
Gompertz Model ◽  
Maximum Sustainable Yield ◽  
Policy Implications ◽  
Fishing Gear ◽  
Sustainable Yield ◽  
Maximum Economic Yield

Perikanan tangkap di waduk, merupakan potensi yang dapat diandalkan bagi pemenuhan kebutuhan hidup masyarakat sekitarnya, sayangnya kegiatan ini belum banyak mendapat perhatian pengelolaan. Terbukti dari masih sangat rendahnya kontribusi sektor perikanan tangkap waduk ini pada perekonomian daerah. Untuk digunakan sebagai basis pengelolaan, penelitian ini dilakukan untuk menganalisis  pengaruh aktivitas produksi (penangkapan) terhadap kondisi sumber daya ikan seperti parameter biologi dan rente sumberdaya perikanan pada kondisi aktual, lestari, dan juga optimal, dengan menggunakan model bio-ekonomi standard logistik dan Gompertz. Skenario model yang digunakan adalah analisis bio-ekonomi model logistik Gordon Schaefer (GS) dengan estimasi parameter algoritma Fox, dan model Fox/Gompertz dengan estimasi  parameter biologi seluruhnya algoritma CYP. Analisis perikanan tangkap dilakukan dengan menggunakan skenario rezim pengelolaan open access, Maximum Sustainable Yield (MSY) dan Maximum Economic Yield (MEY). Hasil penelitian menunjukan adanya overfishing dan overcapacity pada beberapa tahun pengamatan yang ditandai dengan adanya kelebihan effort baik pada Model GS maupun Gompertz. Pengelolaan dengan menggunakan rezim MEY memberikan nilai rente yang paling maksimum, dengan biomass yang lebih konservatif, dan  effort yang lebih efisien, baik pada model GS maupun model Gompertz. Implikasi kebijakan pengelolaan waduk melalui rasionalisasi jumlah alat tangkap. Model MSY mengisyaratkan rasionalisasi alat tangkap lebih sedikit dibandingkan model MEY, sementara Model Gompertz mengisyaratkan penurunan alat tangkap lebih tinggi dibandingkan model GS. Alternatif pembatasan output atau kuota output juga dapat dilakukan dengan menggunakan nilai JTB. Title: Sustainable Fisheries Management in Cirata Dam: Bio-Economic ModellingCapture fisheries in the dam is a potential that can be relied for the surrounding community subsistence. Unfortunately this activity has not received much attention management. This was evident from the very low dam fisheries contribution, to the regional economy. For the purpose of fisheries management in the dam, this study was conducted to analyze the effect of production activities, on the condition of fish resources such as biological parameters and fishery resource rents on actual conditions, sustainable, and optimally, using bio-economic model of standard logistic and Gompertz. The scenario model used is the analysis of bio-economic model of logistics Gordon Schaefer (GS) with the parameter estimation of Fox algorithm, and  Gompertz model  with algorithm CYP  for biological parameter estimation. Analysis of fisheries carried out by using a scenario of open access management regime, Maximum Sustainable Yield (MSY) and the Maximum Economic Yield (MEY). The results showed overfishing and overcapacity in several years of observation which is characterized by an excess of effort both on the GS model and Gompertz. Management using MEY regime provides the maximum possible value of rents, with biomass more conservative and more efficient effort, both on the GS model and the model of Gompertz. Policy implications reveal from the study is dam management through the rationalization of the number of fishing gear or boats. MSY model suggests rationalization of fishing gear less than the model MEY, while the Gompertz model implies a decrease in fishing gear higher than the GS model. Alternative output restrictions or quotas outputs can also be implemented by using the value of total allowable catch.

scholarly journals Identifying blue swimming crab (Portunus pelagicus) stocks with truss network analysis approach in Indonesian Fisheries Management Area 712

2020 ◽  
Vol 10 (3) ◽  
pp. 390-401
Author(s):  
Nurhaya Afifah ◽  
Zairion Zairion ◽  
Hawis H Maduppa ◽  
Agus A Hakim ◽  
Yusli Wardiatno
Keyword(s):  
Network Analysis ◽  
Fisheries Management ◽  
Sustainable Management ◽  
Euclidean Distance ◽  
The Other ◽  
Optimum Level ◽  
Swimming Crab ◽  
Portunus Pelagicus ◽  
Morphometric Characters ◽  
Management Area

Exploitation rate of the blue swimming crab (BSC) in Indonesian Fisheries Management Area (FMA) 712 is over-optimum level in 2016. Stocks concern in sustainable management is needed as an effort to maintain its availability. The objective of this study is to identify the stock unit of BSC based on Truss Network Analysis (TNA) of morphometric characters in FMA 712. The BSC was collect in five different locations, i.e. East Lampung, Lancang Island, Cirebon, Rembang, and Southern Madura. Measurements on TNA were carried out at 14 landmark points with 29 characters in carapace to analyze its morphometric characters. The cluster analysis showed that TNA method revealed two stocks units of BSC in FMA 712. The first stock was the BSC population of Southern Madura, and the other stock was the other four population. The longest Euclidean distance was found at Southern Madura indicating similarity level with other populations was low. The discriminant analysis demonstrated the different result. There were three group populations, which every population in one group were able to represent the other population, namely Lancang Island-Cirebon, East Lampung-Rembang, and Southern Madura. Regarding to this study, it is recommended to manage BSC in Southern Madura separately.

scholarly journals Genetic population subdivision of the blue swimming crab (Portunus pelagicus) across Indonesia inferred from mitochondrial DNA: Implication to sustainable fishery

PLoS ONE ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. e0240951
Author(s):  
Hawis Madduppa ◽  
Rina Martaulina ◽  
Zairion Zairion ◽  
Resha Mukti Renjani ◽  
Mujizat Kawaroe ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Mitochondrial Dna ◽  
Fisheries Management ◽  
Global Market ◽  
Genetic Connectivity ◽  
Market Demand ◽  
Swimming Crab ◽  
Portunus Pelagicus ◽  
Spatial Connectivity ◽  
Sustainable Fishery

The blue swimming crab (BSC), Portunus pelagicus (Linnaeus 1758), inhabits coastal areas of Southeast and East Asia, and is one of high fisheries commodities with an export value for Indonesia and an increasing global market demand, annually. However, the data of genetic diversity and their spatial connectivity of populations in Indonesia are not yet known, even when it is important to inform stock unit management and sustainable use. This study aimed to determine the genetic diversity and differentiation of blue swimming crabs across Indonesian populations in different Fishery Management Area (FMA), and their spatial genetic connectivity, as well as to deliver implications for sustainable fishery. A total of 297 individuals were collected and amplified using cytochrome oxidase I mitochondrial DNA. This study has showed the highest values for haplotype and nucleotide diversity in the eastern part of Indonesia, where exploitation is relatively low. Significant genetic differentiation between populations (FST = 0.954; p < 0.001) and the fisheries management areas (FST = 0.964; p < 0.001) were revealed. Low spatial connectivity was observed between populations in a distance of at least more than 60 kilometers. This study suggests that BSC populations in Indonesia, likely have several stock units, and preferably different fisheries management plans and actions across the region thoroughly and simultaneously. This would be effective for management and their sustainable conservation.

Use of escape vents to improve size and species selectivity of collapsible pot for blue swimming crab Portunus pelagicus in Thailand

2008 ◽  
Vol 75 (1) ◽  
pp. 25-33 ◽  
Author(s):  
Anukorn Boutson ◽  
Chaichan Mahasawasde ◽  
Songsri Mahasawasde ◽  
Suriyan Tunkijjanukij ◽  
Takafumi Arimoto
Keyword(s):  
Swimming Crab ◽  
Portunus Pelagicus ◽  
Species Selectivity

Visualization of biomolecules in the eyestalk of the blue swimming crab, Portunus pelagicus , by imaging mass spectrometry using the atmospheric-pressure mass microscope

2010 ◽  
Vol 42 (10-11) ◽  
pp. 1589-1592 ◽  
Author(s):  
Morakot Sroyraya ◽  
Naoko Goto-Inoue ◽  
Nobuhiro Zaima ◽  
Takahiro Hayasaka ◽  
Piyachat Chansela ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Atmospheric Pressure ◽  
Imaging Mass Spectrometry ◽  
Swimming Crab ◽  
Portunus Pelagicus

scholarly journals Pengaruh ekstrak minyak cumi pada umpan bubu terhadap hasil tangkapan kepiting bakau dan rajungan di Perairan Malise Kecamatan Tabukan Tengah

2016 ◽  
Vol 2 (3) ◽  
Author(s):  
Maichel Arvan Pananggung ◽  
Ivor L. Labaro ◽  
Emil Reppie
Keyword(s):  
Coastal Waters ◽  
Scylla Serrata ◽  
Fishing Gear ◽  
Swimming Crab ◽  
Portunus Pelagicus ◽  
Mangrove Crab ◽  
Gill Net ◽  
Oil Extract ◽  
Mangrove Crabs ◽  
By Catch

ABSTRACT Mangrove crab (Scylla serrata) and swimming crab (Portunus pelagicus) are economically important marine commodities produced from the coastal waters of Sangihe Islands Regency. But those marine commodity products are usually only caught accidentally with a bottom gill net. There has been a special trap fishing gear for that resources, but not known well by local fishermen. Addition of squid oil extraction baits could increase the fishing power of mangrove crab and swimming crab traps. This research aims to study the effect of squid oil extract on traps bait to catch mangrove crab and swimming crab; and identify the types of biota captured. This research was done in coastal waters of Malise village, Tabukan Tengah District of Sangihe Islands Regency for 2 weeks September 2015; based on experimental method. Six unit traps were operated ten trips where three units of them used scad mackerel bait that injected with squid oil extract, and tree other units just used scad mackerel bait without extract; and the capture data were analyzed using t test. The catch was 142 individuals (135 mangrove crabs and 7 swimming crab); where 86 crabs was caught by scad mackerel bait with squid oil extract, and 56 crabs caught with bait without squid oil extract. The analysis showed that the use of squid oil extracts on trap baits increased the catch. Keywords: mangrove crab, swimming crab,trap baits, squid oil extract, Sangihe   ABSTRAK[1] Kepiting bakau (Scylla serrata) dan rajungan (Portunus pelagicus) merupakan komoditi hasil laut ekonomis penting yang dihasilkan dari perairan pantai Kabupaten Kepulauan Sangihe. Tetapi komoditi hasil laut tersebut biasanya hanya tertangkap tanpa sengaja (by catch) dengan jaring insang dasar. Sebenarnya telah ada alat tangkap bubu khusus untuk kepiting bakau dan rajungan, tetapi belum dikenal oleh nelayan lokal. Pemberian ekstrak minyak cumi pada umpan, diduga dapat meningkatkan kemampuan tangkap dari bubu kepiting bakau dan rajungan. Penelitian ini bertujuan untuk mempelajari pengaruh ekstrak minyak cumi pada umpan bubu terhadap hasil tangkapan kepiting bakau dan rajungan, dan mengidentifikasi jenis-jenis biota yang tertangkap. Penelitian ini dilakukan di perairan Malise Kecamatan Tabukan Tengah, Kabupaten Kepulauan Sangihe; selama 2 minggu pada bulan September 2015; yang didasarkan pada metode eksperimental. Enam unit bubu dioperasikan selama sepuluh trip untuk mengumpulkan data; di mana tiga unit menggunakan umpan ikan layang yang disuntikan ekstrak minyak cumi, dan tiga unit lainnya hanya menggunakan umpan ikan laying tanpa ekstrak; dan data dianalisis dengan uji t. Tangkapan total berjumlah 142 ekor (135 ekor kepiting bakau dan 7 ekor rajungan); di mana 86 ekor tertangkap dengan umpan layang yang diberi ekstrak minyak cumi, dan 56 ekor tertangkap dengan umpan tanpa ekstrak. Hasil analisis menunjukkan bahwa penggunaan ekstrak minyak cumi pada umpan bubu, memberikan hasil tangkapan yang sangat berbeda dibandingkan dengan umpan tanpa ekstrak minyak cumi. Kata-kata kunci: kepiting bakau, rajungan, umpan bubu, ekstrak minyak cumi, Sangihe  

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