scholarly journals ANALISIS PENDAPATAN USAHA PENANGKAPAN IKAN LAUT MENGGUNAKAN ALAT TANGKAP GILL NET DI DESA TABANIO KECAMATAN TAKISUNG KABUPATEN TANAH LAUT ((THE INCOME ANALYSIS OF FISHERY EFFORT WITH GILL NET IN TABANIO VILLAGE, TAKISUNG DISTRICT, TANAH LAUT REGENCY)

2016 ◽  
Vol 1 (2) ◽  
pp. 202
Author(s):  
Yarna Hasriani ◽  
Emmy Sri Mahreda ◽  
Irma Febrianty
Keyword(s):  
Cross Section ◽  
Structured Interview ◽  
Fishing Effort ◽  
Payback Period ◽  
Fishing Vessel ◽  
Gill Nets ◽  
Section Data ◽  
Research Activities ◽  
Gill Net ◽  
The Village

<p>Penelitian ini bertujuan untuk mengetahui keuntungan usaha nelayan <em>gill net</em> setelah dikurangi bagian hasil untuk buruh nelayan; dan menganalisis kelayakan usaha penangkapan ikan di laut dengan menggunakan alat tangkap <em>gill net</em>. Kegiatan penelitian ini dilaksanakan di Desa Tabanio, Kecamatan Takisung, Kabupaten Tanah Laut, sebagai desa nelayan di Kabupaten Tanah Laut yang masyarakatnya dominan menggunakan alat tangkap <em>gill net</em>. Data yang dikumpulkan adalah data <em>cross section</em> yang bersumber langsung dari nelayan pemilik kapal/alat tangkap <em>gill net</em>, melalui teknik wawancara terstruktur (menggunakan kuesioner).</p><p>Hasil penelitian menunjukkan bahwa keuntungan yang diperoleh nelayan pemilik kapal dari usaha penangkapan ikan dengan <em>gill net</em> di Desa Tabanio adalah rata-rata sebesar Rp.7.634.223 per trip atau per bulan. Usaha penangkapan ikan dengan <em>gill net</em> di Desa Tabanio menguntungkan dan layak untuk diusahakan, karena nilai <em>NPV</em> yang positip sebesar Rp.61.550.000, dengan nilai <em>Net BCR </em>lebih dari satu<em> </em>(1,38) dan <em>IRR</em> lebih dari<em> </em>suku bunga yang didiskonto (27% &gt; 14%), serta <em>payback period</em> yang lebih cepat dari periode proyeksi selama lima tahun (2,96 tahun).</p><p><em>This study</em><em> aims to determine the business benefits gill net fishing net of proceeds for fishing laborers and analyze their feasibility in the sea fishing using gill net gear. The research activities conducted in the Village Tabanio, Takisung District, of Tanah Laut, a fishing village in the district of Tanah Laut where people predominantly use gill net gear. The data collected is cross section data are sourced directly from the fishing vessel owner/gill net gear, through a structured interview technique (using questionnaires).</em></p><p><em>The results showed that</em><em> the benefits of fishing vessel owners fishing effort by gill nets in the village Tabanio is an average of Rp.7.634.223 per trip or per month. Fishing effort by gill nets in the village Tabanio profitable and worth the effort, because the value of Rp.61.550.000 positive NPV, the net value of BCR is more than one (1.38) and IRR over a discounted rate (27% &gt; 14%), and the payback period is faster than the projected five-year period (2.96 years).</em></p>

scholarly journals Construction of Gill Net 2 and 3 Inches in The Village Kampung Nelayan of Regency Tanjung Jabung Barat

2019 ◽  
Vol 10 (1) ◽  
pp. 15-23
Author(s):  
Nelwida Nelwida ◽  
Lisna Lisna ◽  
Ren Fitriadi
Keyword(s):  
Statistical Analysis ◽  
Survey Method ◽  
Fishing Gear ◽  
Environmental Friendliness ◽  
Gill Nets ◽  
A Value ◽  
Gill Net ◽  
Dimension Analysis ◽  
The Village ◽  
Descriptive Statistical Analysis

Gill nets is the most dominant fishing gear used by fishermen in Kampung Nelayan Village. Gill nets 2 and 3 inches are widely used by traditional fishermen and modern fishermen because this tool is very practical to catch fish also friendly to the environment. This study aims to determine the construction and friendliness of fishing gear gill nets 2 and 3 inches which include the length of the net, the width of the net, shortening, buoyancy and sinking power. This research was carried out in the Village of Kampung Nelayan, Tungkal Ilir Subdistrict, Tanjung Jabung Barat District in February 2018. The method used in this research was survey method. The data obtained were analyzed using net dimension analysis and descriptive statistical analysis. Based on the results of research on the construction of 2 and 3 inches gill nets consisting of nylon monofilament made from transparent colors. The knot used by the English knot. Top rope, float, and float buoy made from polyethylene (PE) rope and ballast rope made from polypropylene (PP). The sinker made from tin and gill net 3 inch weight based on bracelet-shaped wire.Net shortening value of 2 inch is 51.75% and has a buoyancy of 3.05 kgf and a sinking power of 9.97 kgf. As well as the value of gill shortening 3 inch 50.62% and the buoyancy generated 6.22 kgf and the sinking power of 365.4 kgf. The value of environmental friendliness of 2 and 3 inch nets has a value of 31.25 and 30.75 and is classified as environmentally friendly fishing gear.

Shark fisheries in Argentina

1998 ◽  
Vol 49 (7) ◽  
pp. 601 ◽  
Author(s):  
Gustavo E. Chiaramonte
Keyword(s):  
Fishing Effort ◽  
Population Trends ◽  
The South ◽  
Gill Nets ◽  
Argentine Sea ◽  
Commercial Importance ◽  
South West ◽  
Gill Net ◽  
Galeorhinus Galeus ◽  
Mustelus Schmitti

In the Argentine Sea there are about 35 species of sharks. Three species are subjected to directed fishing: the smoothhound Mustelus schmitti, the school shark Galeorhinus galeus and the copper shark Carcharhinus brachyurus. Other species of elasmobranchs with commercial importance are the angel shark Squatina spp. and several species of skates and rays. The rise in chondrichthyan declared landings registered from 1988 to 1996 is due to the increase in landings of smoothhound and rays. The most important directed shark fishery in the South-West Atlantic is the Necochea gill-net fishery for school shark, which is carried out by the coastal fleet; details are given of the ships and the gill-nets used in this area. The length frequencies of the catches by gill-nets are presented for the school shark; fishing effort (length (km) of net in the water per ship per day) and CPUE (number of sharks per fishing effort) were found not to be good indicators of population trends in the school shark fishery. Resumen. En el Mar Argentino se han registrado 35 especies de tiburones. Tres de estas especies están sometidas a una pesca dirigida; el gatuzo, Mustelus schmitti, el cazón, tiburón vitamínico o trompa de cristal, Galeorhinus galeus y la bacota, Carcharhinus brachyurus. Otras especies de elasmobranquios de importancia comercial son el pez ángel Squatina spp. y algunas especies de rayas. El incremento en los desembarcos de condríctios declarados a las autoridades pesqueras entre 1988 y 1996 es debido principalmente al incremento del desembarco de gatuzo y rayas. La pesquería dirigida a tiburón más importante en el Atlántico Sudoccidental es la pesquería costera de enmalle de Necochea para el cazón. Se describen el largo de las embarcaciones y las redes utilizadas en el área (la medida de malla, el calado y la operación del arte de pesca). Se presenta la frecuencia del largo total de las capturas de cazón en redes de enmalle. Se halló para la pesquería del cazón que el esfuerzo pesquero (estimado como km de red en el agua por embarcación por día) y la CPUE (estimada como tiburones/esfuerzo de pesca) no son buenos indicadores de la tendencia en la abundancia poblacional.

scholarly journals ANALISIS PENDAPATAN USAHA TANGKAP NELAYAN DAN FAKTOR-FAKTOR YANG MEMPENGARUHINYA DI WILAYAH PESISIR PANTAI SULAWESI SELATAN

2017 ◽  
Vol 6 (2) ◽  
pp. 235 ◽  
Author(s):  
Abdul Rahim
Keyword(s):  
Cross Section ◽  
Coastal Area ◽  
Primary Data ◽  
Gasoline Price ◽  
Section Data ◽  
South Sulawesi ◽  
Gill Net ◽  
Long Line ◽  
Fishing Area ◽  
Area Difference

Penelitian yang dilakukan di wilayah pesisir pantai Sulawesi Selatan bertujuan untuk menghitung besarnya perbedaan pendapatan usaha tangkap nelayan dan menganalisis faktor-faktor yang mempengaruhinya. Metode yang digunakan adalah deskriptif dan eksplanatori. Berdasarkan dimensi waktu digunakan data cross-section yang bersumber pada data primer. Responden nelayan diambil secara stratified sampling sedangkan kabupaten secara purposive sampling. Hasil penelitian menemukan bahwa pendapatan usaha tangkap nelayan perahu motor dan perahu tanpa motor di Kabupaten Jeneponto lebih besar dari nelayan Kabupaten Barru dan Sinjai. Besar-kecilnya pendapatan usaha tangkap nelayan perahu motor per trip di wilayah pesisir pantai Sulawesi Selatan dipengaruhi secara positif oleh harga minyak tanah, produktivitas, umur, dan alat tangkap rawai tetap, sedangkan secara negatif dipengaruhi oleh harga bensin, lama melaut, dan perbedaan wilayah penangkapan. Pendapatan nelayan perahu tanpa motor per trip di Sulawesi Selatan dipengaruhi secara positif oleh produktivitas jaring insang tetap dan perbedaan wilayah. Selama setahun, pendapatan nelayan perahu motor dipengaruhi secara positif oleh harga minyak tanah, dan produktivitas secara nyata positif; sedangkan secara negatif dipengaruhi oleh harga bensin, lama melaut, trip, dan perbedaan wilayah. Pendapatan nelayan perahu tanpa motor secara positif dipengaruhi oleh produktivitas, tanggungan keluarga, jaring insang tetap, dan perbedaan wilayah. Tittle: Analysis of Fisher’s Fishing Income and its Various Factors Influence in Coastal Area of South Sulawesi.Research was conducted in coastal area region of South Sulawesi which aimed to calculate the level of difference fisher’s fishing income from each region of coastal area and analysis the various factors influencing it. Research method was used descriptive and explanatory. cross-section data of the primary data. Fisher’s responder were sampled stratifiecally indicate that is fishing income of motorized boat were used and non-motorized boat in regency Jeneponto bigger than is Barru and Sinjai. Then its motorized boat fisher’s fishing income per trip in coastal area of South Sulawesi influenced positively by kerosene price, productivity, age, and set long line, while negatively influenced by gasoline price,fishing day per trip, and difference of fishing areas. Then fishing income non-motorized boat fisher’s per trip in South Sulawesi influenced positively by productivity, set gill net remain to and regional difference. Other only a annual fishing income motorized boat fisher’s influenced positively by kerosene price, and productivity positive manifestly, while negatively influenced by gasoline price, fishing day per trip, number of trip, and fishing area difference. Then fishing income non-motorized boat fisher’s  influenced positively by productivity, family responsibility, set gill net, and fishing area difference.

scholarly journals KAJIAN MATA PENCAHARIAN PENDUDUK DAN DAMPAKNYA TERHADAP KEBERADAAN SUMBER DAYA LAUT DI KELURAHAN BUNAKEN KECAMATAN BUNAKEN KOTA MANADO

2016 ◽  
Vol 2 (4) ◽  
Author(s):  
Otniel Pontoh
Keyword(s):  
Fishing Effort ◽  
Utilization Rate ◽  
Marine Resources ◽  
Gill Net ◽  
Level Of Use ◽  
Traditional Fishing ◽  
The Village ◽  
Small Traders ◽  
Positive Effect

Abstract This study was conducted to determine the level of use of marine resources in the waters of Bunaken by residents of the surrounding villages. The occupation of the village has been exploiting the natural resources of the sea as a source of livelihood for their survival. This study uses a case study to illustrate (collect, describe, express, to explain in detail the activities of the community in exploiting marine resources). Bunaken villagers numbering 2598 inhabitants come from 531 households. The number of fishermen 695 people (70.7%). Fishing gear they use are different types of nets or soma pajeko (small puse seine), paka-paka, landra (gill-net) and rarape (beach seine). Likewise, trolling equipment, Noru, Funae, kites and darts (Jubi-Jubi). Outboard motor is a type of transport used to go to sea, but some are not. Results obtained from the fish traditional fishing businesses that still only enough to meet their daily needs and if there are fewer, sold to buy other necessities. Besides fishing, fishermen and other residents are farmers, artisans, small traders, construction workers, selling services, and so forth. Fishing effort is still traditional because the level of resource utilization is still low. It can be concluded that the occupation of the village of Bunaken low utilization rate, so that a positive effect on the condition of a sustainable resource. Keyword: livelihood, residents, fishermen, marine resources, Bunaken Abstrak Penelitian ini dilakukan untuk menentukan tingkat pemanfaatan sumber daya laut di perairan desa Bunaken oleh penduduk sekitarnya. Pendudukan desa selama ini mengeksploitasi sumber daya alam dari laut sebagai sumber mata pencaharian untuk kelangsungan hidup mereka. Penelitian ini menggunakan metode studi kasus guna menggambarkan (mengumpulkan, mendeskripsikan, mengungkapkan, untuk menjelaskan secara detail aktivitas masyarakat dalam memanfaatkan sumber daya laut). Penduduk desa Bunaken berjumlah 2598 penduduk berasal dari 531 kepala keluarga. Jumlah nelayan 695 orang (70,7%). Alat penangkapan ikan yang mereka gunakan ialah berbagai jenis jaring atau soma pajeko (small puse seine), paka-paka, landra (gill-net) dan rarape (pukat pantai). Demikian juga peralatan trolling, noru, funae, layang-layang dan panah (jubi-Jubi). Motor tempel merupakan jenis transportasi yang digunakan untuk melaut, namun ada juga yang tidak. Hasil yang diperoleh dari ikan hasil tangkapan usaha perikanan yang masih tradisional hanya cukup untuk memenuhi kebutuhan sehari-hari dan jika ada lebih sedikit, dijual untuk membeli kebutuhan lainnya. Selain memancing, nelayan dan warga lainnya adalah petani, pengrajin, pedagang kecil, pekerja konstruksi, menjual jasa, dan sebagainya. Usaha penangkapan ikan yang masih tradisional menyebabkan tingkat pemanfaatan sumber daya masih rendah. Dengan demikian dapat disimpulkan bahwa pendudukan Desa Bunaken rendah tingkat pemanfaatan, sehingga berpengaruh positif pada kondisi sumber daya lestari. Kata kunci: mata pencaharian, penduduk desa, nelayan, sumber daya kelautan, Bunaken

Fishery simulation model for sharks applied to the Gummy Shark, Mustelus antarcticus Gunther, from Southern Australian waters

1992 ◽  
Vol 43 (1) ◽  
pp. 195 ◽  
Author(s):  
TI Walker
Keyword(s):  
Sex Ratio ◽  
Simulation Model ◽  
Mesh Size ◽  
Fishing Effort ◽  
Probability Density Distribution ◽  
Natural Mortality ◽  
Sex Ratio At Birth ◽  
Gill Nets ◽  
Gill Net ◽  
Number Of Births

A dynamic pool simulation model is derived and applied to the gummy shark stock of the southern shark fishery. Inputs to the model are fishing effort reported by fishers for hooks and for gill-nets with mesh sizes of 6 inches (152 mm), 7 inches (178 mm) and 8 inches (203 mm) along with estimates for growth, natural mortality, catchability, hook and gill-net mesh selectivity, size at maturity and fecundity of females, sex ratio at birth, and length-weight relationships. Growth is described by the von Bertalanffy equation; hook selectivity is constant with length for sharks recruited to the fishery; gill-net selectivity is based on the probability density distribution of the gamma function where selectivity varies with the mesh size of the gill-nets and the length of the sharks; number of births is related to the proportion of females mature at each length, and the relationship between number of births and maternal weight is linear; parturition is annual and time is standardized so that parturition occurs at the beginning of each year; sex ratio at birth is based on observations of a 1: 1 sex ratio of embryos; and allometric weight-length is based on the power curve. Natural mortality of recruits, catchability, reproduction and growth parameters are held constant, but density-dependent natural mortality of prerecruits is varied in proportion to stock abundance. The model is used to simulate effects of historical longline fishing effort and gill-net fishing effort for each mesh size on stock biomass, numbers of sharks in the stock, and numbers of births. The performance of the model is evaluated by comparing simulated annual catches and the simulated mean weight of sharks captured with annual catches reported by the fishers and the mean weight of sharks sampled in commercial landings. Uncertainties surrounding estimates of some of the parameters are discussed. Notwithstanding its shortcomings, the model indicates that the stock of gummy shark has been severely reduced and is in danger of further depletion unless immediate action is taken to reduce the commercial catch.

Pooling of Time Series and Cross Section Data

Econometrica ◽  
1969 ◽  
Vol 37 (3) ◽  
pp. 552
Author(s):  
V. K. Chetty
Keyword(s):  
Time Series ◽  
Cross Section ◽  
Cross Section Data ◽  
Section Data

Applications of cross section data for nuclear geochemical well logging

1986 ◽  
Vol 94 (1-4) ◽  
pp. 49-52 ◽  
Author(s):  
R. C. Hertzog ◽  
P. D. Soran ◽  
J. S. Schweitzer
Keyword(s):  
Cross Section ◽  
Well Logging ◽  
Cross Section Data ◽  
Section Data ◽  
Geochemical Well Logging

An Am/Be neutron source and its use in integral tests of differential neutron reaction cross-section data

2010 ◽  
Vol 68 (9) ◽  
pp. 1656-1661 ◽  
Author(s):  
M.S. Uddin ◽  
M.R. Zaman ◽  
S.M. Hossain ◽  
I. Spahn ◽  
S. Sudár ◽  
...  
Keyword(s):  
Cross Section ◽  
Neutron Source ◽  
Reaction Cross Section ◽  
Reaction Cross ◽  
Cross Section Data ◽  
Section Data ◽  
Neutron Reaction

scholarly journals Unions and Productivity in the Public Sector: A Study of Municipal Libraries

ILR Review ◽  
1983 ◽  
Vol 36 (2) ◽  
pp. 199-213 ◽  
Author(s):  
Ronald G. Ehrenberg ◽  
Daniel R. Sherman ◽  
Joshua L. Schwarz
Keyword(s):  
Public Sector ◽  
Collective Bargaining ◽  
Empirical Analysis ◽  
Cross Section ◽  
Cross Section Data ◽  
The Public ◽  
Section Data ◽  
The Empirical Analysis

This paper develops and illustrates the use of two methodologies to analyze the effect of unions on productivity in the public sector. Although the methodologies are applicable to a wide variety of public sector functions, the focus of the paper is on municipal libraries because of the availability of relevant data. The empirical analysis, which uses 1977 cross-section data on 260 libraries, suggests that collective bargaining coverage has not significantly affected productivity in municipal libraries.

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