Analisis Potensi Lestari Hasil Tangkapan Trammel Net  Di Kabupaten Indramayu

This study aims to analyze the Catch Per Unit Effort (CPUE) and Maximum Sustainable Yield (MSY) from the catch of trammel net fishing gear by fishermen in Indramayu Regency, West Java. The research method used is descriptive method, which is a method to create a systematic, factual and accurate description of the facts, characteristics and relationships of environmental factors or phenomena being studied. Data analysis was carried out on the catch and catch effort in the last 5 years (2011-2015) on trammel net fishing gear. Trammel net fishing gear is environmentally friendly fishing gear and is an effective fishing tool in fishing productivity with the composition of the catch consisting of the main catch is tiger shrimp (Penaeus monodon) and bycatch such as tigawaja fish (Johnius belangeri), petek Leiognathus bindus) and layur (Trichyurus haumela). The highest annual productivity of trammel net fishing gear during 2011-2015 occurred in 2011 and 2014 at 0.018 tons / trip and the lowest productivity occurred in 2015 at 0.013 tons / trip, and the maximum sustainable catch or MSY in Indramayu Regency was 32147, 1 ton / year, with an estimated optimum fishing effort of 103516.67 trips for one year and R2 of 0.2977. This study aims to analyze the Catch Per Unit Effort (CPUE) and Maximum Sustainable Yield (MSY) from the catch of trammel net fishing gear by fishermen in Indramayu Regency, West Java. The research method used is descriptive method, which is a method to create a systematic, factual and accurate description of the facts, characteristics and relationships of environmental factors or phenomena being studied. Data analysis was carried out on the catch and catch effort in the last 5 years (2011-2015) on trammel net fishing gear. Trammel net fishing gear is environmentally friendly fishing gear and is an effective fishing tool in fishing productivity with the composition of the catch consisting of the main catch is tiger shrimp (Penaeus monodon) and bycatch such as tigawaja fish (Johnius belangeri), petek Leiognathus bindus) and layur (Trichyurus haumela). The highest annual productivity of trammel net fishing gear during 2011-2015 occurred in 2011 and 2014 at 0.018 tons / trip and the lowest productivity occurred in 2015 at 0.013 tons / trip, and the maximum sustainable catch or MSY in Indramayu Regency was 32147, 1 ton / year, with an estimated optimum fishing effort of 103516.67 trips for one year and R2 of 0.2977.

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RESPONSIBLE FISHERIES MANAGEMENT OF MINI PURSE SEINE IN THE LAMPUNG BAY AREA

Jurnal Ilmu dan Teknologi Kelautan Tropis ◽

10.29244/jitkt.v8i2.15837 ◽

2017 ◽

Vol 8 (2) ◽

pp. 713-728

Author(s):

Yulia Estmirar Tanjov ◽

Roza Yusfiandayani ◽

. Mustaruddin

Keyword(s):

Fishing Effort ◽

Maximum Sustainable Yield ◽

Pelagic Fish ◽

Purse Seine ◽

Sustainable Yield ◽

Catch Per Unit Effort ◽

Small Pelagic Fish ◽

Bay Area ◽

Fisheries Resources ◽

The Status

Lempasing is a Coastal Fishing Port (CFP) which located in Bandar Lampung. It is one of the centers of fisheries activities in the city. One of the fishing gear which operated by most of fishermen in Lempasing is mini purse seine. Mini purse seine fishing activities in the Lampung Bay Area and Lempasing CFP is not in accordance with the conditions of the surrounding waters area. The research was conducted in the Lampung Bay Area and Lempasing CFP, Lampung. This study aims to: 1) determine the status of fisheries resources utilization, 2) to describe the dominant fish caught by mini purse seine. Analysis methods were used in this study namely: 1) Fishing Power Index (FPI), Catch Per Unit Effort (CPUE), and Maximum Sustainable Yield (MSY) to determine the status of fisheries resource utilization. The dominant small pelagic fishes caught were scad fish Selaroides sp., mackerel fish Rastrelliger sp., longnose trevally fish Carangoides chrysophrys. The result showed that Fox model was the best fits models with estimated maximum sustainable yield of 15.5 ton and fishing effort of 992 trip/year for mini purse seine. The longnose trevally fish in lampung bay area in do not exceeded the optimal catch fish condition can be used to sustainably. In these condition is necessary to wisely manage and setting the catches to not exceed the allowable catch of the small pelagic fish, so the stock of small pelagic fish in the Lampung Bay Area can be used sustainably.

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RESPONSIBLE FISHERIES MANAGEMENT OF MINI PURSE SEINE IN THE LAMPUNG BAY AREA

Jurnal Ilmu dan Teknologi Kelautan Tropis ◽

10.28930/jitkt.v8i2.15837 ◽

2017 ◽

Vol 8 (2) ◽

pp. 713

Author(s):

Yulia Estmirar Tanjov ◽

Roza Yusfiandayani ◽

. Mustaruddin

Keyword(s):

Fishing Effort ◽

Maximum Sustainable Yield ◽

Pelagic Fish ◽

Purse Seine ◽

Sustainable Yield ◽

Catch Per Unit Effort ◽

Small Pelagic Fish ◽

Bay Area ◽

Fisheries Resources ◽

The Status

Lempasing is a Coastal Fishing Port (CFP) which located in Bandar Lampung. It is one of the centers of fisheries activities in the city. One of the fishing gear which operated by most of fishermen in Lempasing is mini purse seine. Mini purse seine fishing activities in the Lampung Bay Area and Lempasing CFP is not in accordance with the conditions of the surrounding waters area. The research was conducted in the Lampung Bay Area and Lempasing CFP, Lampung. This study aims to: 1) determine the status of fisheries resources utilization, 2) to describe the dominant fish caught by mini purse seine. Analysis methods were used in this study namely: 1) Fishing Power Index (FPI), Catch Per Unit Effort (CPUE), and Maximum Sustainable Yield (MSY) to determine the status of fisheries resource utilization. The dominant small pelagic fishes caught were scad fish Selaroides sp., mackerel fish Rastrelliger sp., longnose trevally fish Carangoides chrysophrys. The result showed that Fox model was the best fits models with estimated maximum sustainable yield of 15.5 ton and fishing effort of 992 trip/year for mini purse seine. The longnose trevally fish in lampung bay area in do not exceeded the optimal catch fish condition can be used to sustainably. In these condition is necessary to wisely manage and setting the catches to not exceed the allowable catch of the small pelagic fish, so the stock of small pelagic fish in the Lampung Bay Area can be used sustainably.

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FAKTOR TEKNIS PENANGKAPAN TERHADAP DAMPAK TEKANAN POPULASI IKAN CAKALANG (Katsuwonus pelamis) DI PERAIRAN LAUT FLORES

10.31227/osf.io/pxrv6 ◽

2018 ◽

Author(s):

Asruddin

Keyword(s):

Direct Observation ◽

Research Method ◽

Maximum Sustainable Yield ◽

Purse Seine ◽

Fishing Gear ◽

Sustainable Yield ◽

Skipjack Tuna ◽

Katsuwonus Pelamis ◽

Gill Net ◽

Technical Factors

This research aims to know the capabilities of the fishing gear and skipjack tuna CPUE levels in the Flores Sea. The research method used direct observation in the field by following the arrest operations and conduct interviews to the fisherman of purse seine semi-active, purse seine active and drift gill net. The analysis used in this research is measuring the fishing gear ability and levels of CPUE skipjack tuna in the Flores Sea. Based on the percentage of capture ability of skipjack tuna obtained that the highest capture capability is on purse sein semi-active fishing gear where to catch the skipjack tuna by 0.36 kg in one minute. Based on the analysis of the CPUE of skipjack tuna in the Flores sea from 2007-2012, skipjack tuna production has an increase the calculation of MSY (Maximum Sustainable Yield) of 2464.8 tons. Meanwhile, in 2012 skipjack tuna production have overfishing from the MSY. The population of skipjack tuna in the Flores sea is likely to have pressured by technical factors of fishing.

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FAKTOR TEKNIS PENANGKAPAN TERHADAP DAMPAK TEKANAN POPULASI IKAN CAKALANG (Katsuwonus pelamis) DI PERAIRAN LAUT FLORES

10.31227/osf.io/3vnsz ◽

2019 ◽

Author(s):

Asruddin

Keyword(s):

Research Method ◽

Maximum Sustainable Yield ◽

Purse Seine ◽

Fishing Gear ◽

Sustainable Yield ◽

Skipjack Tuna ◽

Katsuwonus Pelamis ◽

Gill Net ◽

Technical Factors ◽

Impact Of Technology

Abstract This research aims to know the capabilities of the fishing gear and skipjack tuna CPUE levels in the Flores Sea. The research method used direct observation in the field by following the arrest operations and conduct interviews to the fisherman of purse seine semi-active, purse seine active and drift gill net. The analysis used in this research is measuring the fishing gear ability and levels of CPUE skipjack tuna in the Flores Sea. Based on the percentage of capture ability of skipjack tuna obtained that the highest capture capability is on purse sein semi-active fishing gear where to catch the skipjack tuna by 0.36 kg in one minute. Based on the analysis of the CPUE of skipjack tuna in the Flores sea from 2007-2012, skipjack tuna production has an increase the calculation of MSY (Maximum Sustainable Yield) of 2464.8 tons. Meanwhile, in 2012 skipjack tuna production have overfishing from the MSY. The population of skipjack tuna in the Flores sea is likely to have pressured by technical factors of fishing. Keywords : Impact of technology, skipjack population,, Flores Sea Abstrak Penelitian ini bertujuan untuk mengetahui kemampuan alat tangkap ikan cakalang dan tingkat CPUE ikan cakalang di Perairan Laut Flores. Metode penelitian yang digunakan adalah metode pengamatan langsung di lapangan dengan mengikuti kegiatan operasi penangkapan dan melakukan wawancara kepada nelayan pukat cincin semi aktif, pukat cincin aktif dan jaring insang hanyut. Hasil analisis yang digunakan dalam penelitian yaitu pengukuran kemampuan alat tangkap dan Tingkat CPUE ikan cakalang di Perairan Laut Flores. Berdasarkan persentase kemampuan tangkap terhadap ikan cakalang diperoleh bahwa Kemampuan tangkap yang tertinggi terdapat pada alat tangkap pukat cincin semi aktif dimana dapat menangkap ikan cakalang sebesar 0,36 kg dalam satu menitnya. Berdasarkan analisis tingkat CPUE ikan cakalang di Laut Flores dari tahun 2007-2012, produksi ikan cakalang telah mengalami peningkatan hasil perhitungan MSY (Maksimum Sustainable Yield) yaitu sebesar 2464,8 ton sementara itu pada tahun 2012 tingkat produksi ikan cakalang telah melebihi nilai MSYnya. Populasi ikan cakalang di perairan laut flores cenderung telah mengalami tekanan oleh faktor teknis penangkapan ikan. Kata kunci: Kemampuan tangkap, tingkat CPUE, Populasi Ikan Cakalang

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Tingkat pemanfaatan ikan kaci-kaci (Diagramma pictum) pada perairan Mapur yang didaratkan di Desa Kelong, Kabupaten Bintan, Indonesia

Akuatikisle Jurnal Akuakultur Pesisir dan Pulau-Pulau Kecil ◽

10.29239/j.akuatikisle.4.1.1-6 ◽

2020 ◽

Vol 4 (1) ◽

pp. 1

Author(s):

Jupitar Jupitar ◽

Susiana Susiana ◽

Febrianti Lestari

Keyword(s):

Research Method ◽

Secondary Data ◽

Demersal Fish ◽

Maximum Sustainable Yield ◽

Fish Distribution ◽

Primary Data ◽

Survey Method ◽

Utilization Rate ◽

Fishing Gear ◽

Sustainable Yield

Mapur waters is one of the potential areas for demersal fish distribution in Bintan waters. The purpose of this study was to investigate the effort of catching painted sweetlips fish (Diagramma pictum), Maximum Sustainable Yield of Painted Sweetlips Fish and investigated the amount of Painted Sweetlips Fish catches allowed (JTB). The research method used is the survey method, which is direct observation at the research location by recording fishing operations such as fishing gear and catches through direct interviews with fishermen working in fish storage warehouses. Data taken in the form of primary data and secondary data. The results showed that the effort of catching Painted Sweetlips Fish on Mapur waters was 314.00 units, with the MSY value was 713,016 kg/unit. So that the amount of catch allowed (JTB) is 80% from MSY which is equal to 570.41 kg/unit, with the utilization rate of Painted Sweetlips Fish on which is equal to 89%.

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Sustainable Potential of Tuna Fishery Around the Waters of North Sulawesi Province Based on Data from the Bitung Ocean Fisheries Port (PPS)

JURNAL PERIKANAN DAN KELAUTAN TROPIS ◽

10.35800/jpkt.10.1.2019.24414 ◽

2019 ◽

Vol 10 (1) ◽

pp. 18

Author(s):

Donald H. Simanjuntak ◽

Lawrence J. L. Lumingas ◽

Joudy R. R. Sangari

Keyword(s):

Secondary Data ◽

Fishing Effort ◽

Maximum Sustainable Yield ◽

Production Model ◽

Utilization Rate ◽

Sustainable Yield ◽

North Sulawesi ◽

Surplus Production Model ◽

Tuna Fishing ◽

Tuna Fisheries

This research was conducted in the city of Bitung, North Sulawesi Province with activities centered on the Bitung Ocean Fisheries Port (PPS), which began from mid March to April 2019. The fishing activities studied are using the fishing areas around the waters of North Sulawesi Province namely the Sulawesi Sea and The Maluku Sea which are included in WPP 715 and 716 based on tuna catch landed data on PPS Bitung. The purpose of this study was to analyze the value of sustainable potential by looking at the level of utilization and Maximum Sustainable Yield (MSY) of tuna in the waters around North Sulawesi Province based on a surplus production model approach (Schaefer Model). This research is expected to be used as a consideration in the management of tuna stocks around the waters of North Sulawesi Province, and can be used as a basis for further research. This study uses a secondary data collection method in the form of fishery statistics documents. The data used are data from tuna fishing and fishing (effort), from 2014 to 2018 (5 years). The results showed that the sustainable potential of tuna fisheries around the waters of North Sulawesi Province based on North Sulawesi PPS data indicated that, the sustainable potential value of tuna that could be caught was 14,173.51 tons / year which is counted as 80% of the value of tuna resources around the waters of North Sulawesi Province. PPS Bitung data which amounted to 17,716.15 tons / year for Hmsy, 1,200.15 trips / year for Emsy, with an average CPUE value of 2014-2018 of 19 tons / trip. The level of tuna utilization around the waters of North Sulawesi Province is based on data from PPS Bitung in 2014, 2017 and 2018 which indicate that there were indications of overfishing with the largest utilization rate in 2014 which reached a value of 155.09%.Keywords: tuna, Bitung, Bitung PPS, sustainable potential, MSY. ABSTRAKKegiatan penelitian ini berlangsung di Kota Bitung, Provinsi Sulawesi Utara dengan kegiatan berpusat di Pelabuhan Perikanan Samudera (PPS) Bitung, yang dimulai dari pertengahan bulan Maret hingga bulan April 2019. Aktivitas perikanan tangkap yang ditelaah berlangsung di sekitar perairan Provinsi Sulawesi Utara yaitu Laut Sulawesi dan Laut Maluku yang masuk ke dalam WPP 715 dan 716 berdasarkan data tangkapan tuna yang didaratkan di PPS Bitung. Tujuan dari penelitian ini adalah untuk menganalisis nilai potensi lestari dengan melihat tingkat pemanfaatan dan maximum sustainable yield (MSY) ikan tuna di sekitar perairan Provinsi Sulawesi Utara berdasarkan pendekatan model produksi surplus (Model Schaefer). Penelitan ini diharapkan dapat digunakan sebagai bahan pertimbangan dalam pengelolaan stok ikan tuna di sekitar perairan Provinsi Sulawesi Utara, serta dapat digunakan sebagai dasar untuk penelitian selanjutnya. Penelitian ini menggunakan metode pengumpulan data sekunder berbentuk dokumen. Data yang diambil adalah data tangkapan ikan tuna dan upaya penangkapan ikan atau effort (trip), dari tahun 2014 sampai dengan 2018 (5 Tahun). Hasil penelitian menunjukkan potensi lestari perikanan tuna di sekitar perairan Provinsi Sulawesi Utara berdasarkan data PPS Bitung Sulawesi Utara nilai potensi lestari tuna yang bisa ditangkap adalah 14.173,51 ton/tahun 80% dari nilai pemanfaatan sumber daya perikanan tangkap tuna di sekitar perairan Provinsi Sulawesi Utara berdasarkan data PPS Bitung yang sebesar 17.716,15 ton/tahun untuk Hmsy, 1.200,15 trip/tahun untuk Emsy, dengan nilai CPUE rata-rata tahun 2014-2018 sebesar 19 ton/trip. Tingkat pemanfaatan tuna di sekitar perairan Provinsi Sulawesi Utara berdasarkan data PPS Bitung Sulawesi Utara di tahun 2014,2017 dan 2018 sudah yang menandakan adanya indikasi overfishing dengan tingkat pemanfaatan terbesar di tahun 2014 yang mencapai nilai 155,09%.Kata Kunci: ikan tuna, Bitung, PPS Bitung, potensi lestari, MSY.

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Factors affecting revenue of fisherman in Asamjawa Raya Village, South Labuhanbatu Regency, North Sumatra

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/912/1/012040 ◽

2021 ◽

Vol 912 (1) ◽

pp. 012040

Author(s):

Desrita ◽

R Rambey ◽

B D Aritonang ◽

R Leidonald ◽

Z A Harahap

Keyword(s):

Regression Analysis ◽

Linear Regression ◽

Research Method ◽

Working Time ◽

Fishing Gear ◽

Factors Affecting ◽

Spss Software ◽

Large Water ◽

North Sumatra ◽

Descriptive Method

Abstract South Labuhanbatu Regency has quite large water resources with the Barumun River which crosses Pasir Tuntung Village, Asamjawa Village, Kotapinang Village and Sisumut Village. This study aims to determine the factors that influence the income of fishermen in Asamjawa Village, South Labuhanbatu Regency. This research method is a descriptive method with a questionnaire tool and the data obtained were analyzed using SPSS software. The variables observed were fisherman’s income, fisherman’s education, length of time working as a fisherman, area of fishing location, daily working time, number of fishing gear and number of fisherman catches. The linear regression model of fishermen’s income in Asamjawa Village was obtained as follows: Y = -19.344,10 + 392.699,10 X1 - 5.024,53 X2 + 73.255,48 X3 + 16.349,29 X4 + 135.819,41 X5 + 12.465,72 X6. The regression analysis results obtained three variables that significantly affect the income of fishermen in Asamjawa Village, Torgamba District, South Labuhanbatu Regency. Where the variables that have a significant effect are the education variable, the number of catches, and daily working time.

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Estimation of the Maximum Sustainable Yield and the Optimal Fishing Effort of the Blue Crab (Callinectes sapidus, Rathbun 1896) of Laguna Madre, Tamaulipas, Mexico

Crustacea ◽

10.5772/intechopen.90065 ◽

2020 ◽

Author(s):

Jorge Homero Rodriguez Castro ◽

Sandra Edith Olmeda de la Fuente ◽

Wanda Ortiz Baez ◽

Alfonso Correa Sandoval ◽

Jose Alberto Ramirez de León

Keyword(s):

Blue Crab ◽

Callinectes Sapidus ◽

Fishing Effort ◽

Maximum Sustainable Yield ◽

Sustainable Yield ◽

Laguna Madre

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Fishing effort alternatives for the management of demersal fisheries in the western Mediterranean

Scientia Marina ◽

10.3989/scimar.04937.29b ◽

2019 ◽

Vol 83 (4) ◽

pp. 293

Author(s):

Paloma Martín ◽

Francesc Maynou ◽

Mariona Garriga-Panisello ◽

John Ramírez ◽

Laura Recasens

Keyword(s):

Fishing Effort ◽

Western Mediterranean ◽

Maximum Sustainable Yield ◽

Input Control ◽

Mullus Surmuletus ◽

Fishing Fleets ◽

One Year ◽

Management Alternatives ◽

Low Activity ◽

Similar Decrease

Management alternatives based on fishing effort for the demersal fisheries in the western Mediterranean were tested, with the novelty of examining management alternatives at temporal scales smaller than one year. Nine scenarios were considered on the basis of input control: decrease in the number of fishing days, which may correspond to cessation of activity of vessels or lower activity of the fleet; and implementation of seasonal closures of one-, two- and three-month duration in winter, spring, summer and autumn. The approach is based on a multispecies and multigear bioeconomic model. We selected a total of ten species (Merluccius merluccius, Nephrops norvegicus, Mullus barbatus, Mullus surmuletus, Parapenaeus longirostris, Lophius piscatorius, Lophius budegassa, Aristeus antennatus, Phycis blennoides and Lepidorhombus boscii) and seven fleets, defined as a combination of fishing gear (bottom trawl, entangling nets and longline) and fleet segment. A similar decrease in F is achieved with a 20% reduction of fishing effort (days) or with two- to three-month closures. Maximum Sustainable Yield (MSY) for all stocks would be achieved only with such a drastic reduction of fishing effort ( > 80% of fishing days by the end of the five years of simulation) that, in practice, its application can be considered unrealistic, since it would represent a very low activity of all fishing fleets over the year.

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OVERFISHING AND OVERCAPACITY SMALL SCALE FISHERIES IN SEMARANG CITY

Jurnal Ilmu dan Teknologi Kelautan Tropis ◽

10.29244/jitkt.v11i2.24817 ◽

2019 ◽

Vol 11 (2) ◽

pp. 427-435

Author(s):

Jamaludin Malik ◽

Achmad Fahrudin ◽

Dietriech Geoffrey Bengen ◽

Taryono Khodiron

Keyword(s):

Sustainable Management ◽

Maximum Sustainable Yield ◽

Utilization Rate ◽

Small Scale ◽

Fishing Gear ◽

Catch Per Unit Effort ◽

Small Scale Fisheries ◽

Surplus Production ◽

Capacity Level ◽

The Status

Fisheries in Semarang City are dominated by small-scale fisheries. This is indicated by the use of the largest fishing fleet of 10 gross tons operating near the coast. This study aims to analyze the status of small-scale fisheries in Semarang City for sustainable management. Sustainable management is management that guarantees the availability of natural resources and environmental services for future generations. The study was conducted for three months, namely September-November 2018 in the coastal waters of Semarang City, which was part of the Fisheries Management Region (WPP) 712. The method used in this study is the analysis of time series surplus production, namely data from the catch (ton/year) and the number of fishing gear (unit) within 10 years (2007-2016), to calculate the catch per-unit effort (CPUE), maximum sustainable yield (MSY), optimum effort (fopt), utilization rate (TP) and capacity level (TK). This study was obtained results of a downward trend in CPUE; the existing fishery catch or production in 2016 has exceeded the MSY value is 479 tons/year (Schaefer) and 439.11 tons/year (Fox); utilization rate of more than 100% which is 108-127% (Schaefer) and 118-138% (Fox), so that small-scale fisheries in Semarang City are at the level of over-exploited. Based on the fopt analysis, the number of fishing gear used (fexisting) has exceeded the optimum effort with a fishing capacity exceeding 100%, so that small-scale fisheries in Semarang City have experienced overcapacity.

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