A Role of Fibers in Fishing Gear Design and the Expectancy to the Biodegradable Materials

2011 ◽  
Vol 67 (7) ◽  
pp. P.174-P.176
Author(s):  
YASUZUMI FUJIMORI
Keyword(s):  
Biodegradable Materials ◽  
Fishing Gear ◽  
Gear Design

scholarly journals New Archaeological, Paleoenvironmental, and 14C Data from the Šventoji Neolithic Sites, NW Lithuania

Radiocarbon ◽  
2012 ◽  
Vol 54 (3-4) ◽  
pp. 1017-1031 ◽  
Author(s):  
Gytis Piličiauskas ◽  
Jonas Mažeika ◽  
Andrejus Gaidamavičius ◽  
Giedrė Vaikutienė ◽  
Albertas Bitinas ◽  
...  
Keyword(s):  
Human Activity ◽  
Environmental Changes ◽  
Plantago Lanceolata ◽  
Late Glacial ◽  
Fishing Gear ◽  
Pollen Diagram ◽  
Remote Areas ◽  
The Baltic ◽  
Late Glacial And Holocene

Archaeological, geological, and paleoecological investigations supported by radiocarbon dating enabled us to present a reconstruction of chronologically based paleoenvironmental and human activity changes in the Šventoji region, NW Lithuania, during the period 4000–800 cal BC. In addition, we describe the main stages of the Late Glacial and Holocene periods in the area. The Baltic Ice Lake regression was succeeded by a terrestrial period until the Littorina Sea maximal transgression at 5700–5400 cal BC. A marine bay with brackish water was transformed into a freshwater lagoon before the oldest archaeological evidence of human presence, i.e. 4000/3700 cal BC. However, the presence of Cerealia type and Plantago lanceolata pollen dating back to about 4400–4300 cal BC suggests earlier farming activities in the area. Pollen analyses show the minor but continuous role of cereal cultivation after 3250 cal BC. Due to the predominance of the boggy landscape in the immediate vicinity of the Šventoji sites, agricultural fields were situated further away from the sites themselves. Exploitation of remote areas of the freshwater basin by diverse fishing gear was proven by the discovery of a new fishing site, Šventoji 41 (2900–2600 cal BC). This finding together with data of previous research suggest a complex and elaborate coastal economy involving seal hunting and year-round freshwater fishing during the 3rd millennium cal BC. A decline in human activity is seen in the pollen diagram after 1800 cal BC, which could be due to significant environmental changes, including overgrowth of the freshwater lagoon basin with vegetation.

scholarly journals Double Spinned Lobster (Panulirus penicillatus) fishery in Wonogiri Regency, Central Java Province: sustainable management strategies

2020 ◽  
Vol 10 (3) ◽  
pp. 402-418
Author(s):  
Yusli Wardiatno ◽  
Beni Beni ◽  
Akhmad Solihin ◽  
Zairion Zairion
Keyword(s):  
Analytical Hierarchy Process ◽  
Coastal Waters ◽  
Sustainable Management ◽  
Management Strategies ◽  
Fishing Gear ◽  
Central Java ◽  
A Value ◽  
Hierarchy Process ◽  
Central Java Province

The purpose of this research was to analyze the issues and problems in lobster fisheries for establishing strategies to achieve sustainable lobster management. This study was conducted from November 2018 to January 2019 in coastal waters of Wonogiri Regency, Central Java Province. Data collection were made using the triangulation method. In addition, data analyses were performed using AWOT (Analythical Hierarchy Procedure and Strenght-Weakness-Opportunity-Threats) which was the combination of SWOT and Analytical Hierarchy Process (AHP) techniques. The results showed that the problems of lobster management in Wonogiri Regency was the unreported catch and the unwillingness to release small-size- and berried-female lobsters. The best strategy for lobster management in Wonogiri Regency was shown in the 2nd quadrant (strategi Strength-Threats). Thus, the priority strategies would be the development of friendly lobster fishing gear with score a value 35.4% and the second priority is strengthening the role of collectors in controlling catches with a value of 30.5%.

Diesel Reduction Gear Design and System Considerations from a Torsional Vibration Viewpoint

1983 ◽  
Vol 20 (02) ◽  
pp. 159-163
Author(s):  
Gary P. Mowers
Keyword(s):  
Torsional Vibration ◽  
Combustion Engine ◽  
Reduction Gear ◽  
Propulsion Systems ◽  
Vibration Data ◽  
Gear Design ◽  
Design Considerations ◽  
Torsional Coupling ◽  
Coupling Stiffness

Ships propulsion systems consisting of diesel engines and reduction gears are popular due to the ability of the internal combustion engine to operate on the less-expensive heavy fuels. This paper highlights system torsional design considerations that heretofore may not have been appreciated or recognized. Diesel engine misfiring and torsional coupling stiffness variables are addressed to show these effects on shaft stresses and gear overload. The role of the computer in monitoring and recording actual torsional vibration data is presented.

Paper 9: The Role of Lubrication in Gear Design

1969 ◽  
Vol 184 (15) ◽  
pp. 72-78 ◽  
Author(s):  
D. Dowson
Keyword(s):  
Film Thickness ◽  
Research Work ◽  
Elastohydrodynamic Lubrication ◽  
Lubrication Mechanism ◽  
Engineering Material ◽  
Design Procedures ◽  
Gear Design ◽  
Surface Durability ◽  
Surface Distress

The paper gives an account of the way in which the results of fundamental studies of the lubrication mechanism in gears are now being incorporated in gear design procedures. The background to elastohydrodynamic lubrication is summarized and the importance of film thickness calculation is noted. The role of the lubricant in gear lubrication and its effect upon scuffing and pitting are considered. The importance of a film thickness ratio in determining the resistance to both forms of surface distress is emphasized. An improvement in surface durability is likely to lead to important increases in the ratings of many gear sets. The results of many years of research work on gear lubrication can now be embodied in design procedures for the optimization of resistance to scuffing and pitting, and the designer should be encouraged to treat the lubricant as an engineering material and a component in the gear system.

Designing and Testing New Fishing Gears: The Value of a Flume Tank

2006 ◽  
Vol 40 (3) ◽  
pp. 44-49 ◽  
Author(s):  
Paul D. Winger ◽  
Harold DeLouche ◽  
George Legge
Keyword(s):  
Computer Aided Design ◽  
Driving Forces ◽  
Fishing Gear ◽  
Model Studies ◽  
Gear Design ◽  
Class Testing ◽  
Science And Art ◽  
Fishing Gears ◽  
And Performance ◽  
Aided Design

Increasing regulations, bycatch restrictions, and concerns over ecosystem impact are now the driving forces for much of the development in fishing gear design occurring world-wide. Industry, government, and universities have responded to these challenges with major advancements in computer aided design, simulation, physical modeling techniques, and world-class testing facilities. Model studies are a critical step in the development of new fishing gears and flume tanks are the de facto standard for investigating their attributes and performance under controlled conditions. This paper discusses the nature of flume tanks, their attributes, as well as the science and art of building and testing scale models of fishing gear.

scholarly journals Social Transformation of Gender Role in the Area of Sebangau National Park

2018 ◽  
Vol 11 (17) ◽  
pp. 20-27
Author(s):  
Evi Nurleni
Keyword(s):  
Decision Making ◽  
Social Transformation ◽  
National Park ◽  
Qualitative Approach ◽  
Fishing Gear ◽  
Gender Based ◽  
Object Of Study ◽  
And Control ◽  
Fair Access

AbstractThis study aims to describe the role of reproductive, productive and community working of the society of KerengBangkirai and to know the requirement of woman practice and strategic needs in KerengBangkirai. It used qualitative approach with humans as study object. The object of study is the KerengBangkirai society. The result showed that the role of reproductive role became women’s responsibility, either wife/mother or daughter. The role of gender within the community showed the lack of access and women’s control in making important decision. In fact, women are usually missed from village officers’ attention. The women’s practical needs include skills of using fishing gear, child care provider, child room building and others. Then, women’s strategic needs include authority alteration in term of decision-making involvement, equalling job division in domestic sector, women’s involvement in paid toilets as their productive workspace, violence awareness of gender-based and achieving fair access and control.

scholarly journals PERUBAHAN MATA PENCAHARIAN DARI PETANI KE NELAYAN PERIKANAN TANGKAP LAUT DI DESA KANIGORO KECAMATAN SAPTOSARI, KABUPATEN GUNUNGKIDUL

2017 ◽  
Vol 2 (2) ◽  
pp. 73
Author(s):  
Budi Wardono
Keyword(s):  
Venture Capital ◽  
Family Income ◽  
Fishing Gear ◽  
Agricultural Activities ◽  
Southern Coast ◽  
Subsistence Farmers ◽  
Spare Time ◽  
Bad Weather ◽  
Capital Services

Telah terjadi perubahan mata pencaharian masyarakat di sepanjang pantai selatan Kabupaten Gunungkidul. Semula, sebagian besar bermata pencaharian sebagai petani, namun sejak tahun 1980-an mulai beralih profesi sebagai nelayan. Perubahan pekerjaan tersebut terjadi sejak masyarakat mendapat pelatihan nelayan di Tempat Pelelangan Ikan (TPI) Baron. Tujuan penelitian untuk mengetahui transformasi pekerjaan dari petani menjadi nelayan, dan peran  perikanan tangkap laut sebagai sumber mata pencaharian utama. Penelitian dilakukan pada bulan Februari sampai dengan Mei 2014, di TPI Ngrenehan, Desa Kanigoro, Kecamatan Saptosari, Kabupaten Gunungkidul. Responden terdiri dari nelayan, Anak Buah Kapal (ABK), pedagang, penyedia bahan bakar minyak (BBM) dan jasa modal usaha (juragan). Hasil analisis menunjukkan bahwa pekerjaan nelayan dilokasi penelitian saat ini memberikan kontribusi utama sebagai sumber pendapatan keluarga. Namun demikian nelayan tidak meninggalkan kegiatan pertanian. Kegiatan pertanian masih tetap dilakukan oleh nelayan dengan memanfaatkan waktu luang setelah bekerja jadi nelayan dan pada saat cuaca buruk. Kegiatan peternakan, dijadikan sebagai sumber tabungan yang akan digunakan untuk biaya pendidikan atau sebagai tabungan untuk sumber permodalan. Pendapatan dari sektor peternakan digunakan untuk investasi baru yaitu memperbaiki/membeli perahu, membeli mesin dan alat tangkap. Title: Transformation livelihood: From Farmers To Fishermen On The Southern Coast, Gunungkidul RegencyHave been changes in the livelihoods of communities along the southern coast of Gunungkidul Regency. Originally, mostly subsistence farmers, but since the 1980s began to change their profession as a fisherman. The job changes have occurred since the community received training fishermen in TPI Baron. Purpose of research to transform the work of farmers become fishermen, and the role of capture fisheries as the main source of livelihood. Research conducted from February to May 2014, in TPI Ngrenehan, Kanigoro, District Saptosari, Gunungkidul Regency. Respondents consisted of fishermen and crew, traders, fuel providers, venture capital services (middlemen). The analysis showed that fishermen work in the location of current research provides a major contribution as a source of family income. However, the fishermen did not leave the farm. Agricultural activities are still carried out by fishermen to use their spare time after work so fishermen and during bad weather. Farming activities, serve as a source of savings that will be used for education or as a source of savings for capital. Revenue from livestock used for new investments is to improve / buy a boat, buy machinery and fishing gear. 

scholarly journals ANALISIS PROSPEKTIF PERAN AKTOR DALAM STRATEGI FORMULASI PEMBANGUNAN PERIKANAN DI KABUPATEN NATUNA

2019 ◽  
Vol 14 (2) ◽  
pp. 179
Author(s):  
Budi Wardono ◽  
Rizky Muhartono ◽  
Yayan Hikmayani ◽  
Tenny Apriliani ◽  
Hikmah Hikmah
Keyword(s):  
Cold Storage ◽  
Regional Economy ◽  
Oil And Gas ◽  
Fishing Gear ◽  
Interview Technique ◽  
Fisheries Resources ◽  
Iuu Fishing ◽  
High Dependency ◽  
Directorate General

Abstrak Peranan perikanan dalam perekonomian Kabupaten Natuna cenderung meningkat. Kontribusinya terhadap PDRB Kabupaten Natuan sebesar 9%, namun apabila migas tidak dihitung peranannya hampir 30%. Permasalahan peningkatan sektor perikanan dalam perekonomian wilayah adalah: geografis yang terpencil, sarana transportasi terbatas, IUU Fishing, terbatasnya jumlah dan ukuran kapal dan alat tangkap dan kurangnya keterpaduan kerjasama antar pemangku kepentingan/aktor/stakeholder. Tujuan penelitian untuk mengetahui peran pemangku kepentingan/aktor/stakeholder dalam perumusan strategi pembangunan perikanan di daerah terluar Kabupaten Natuna. Penelitian dilakukan di Kabupaten Natuna pada bulan Maret-November 2017. Metode analisis yang digunakan dengan pendekatan analisis Mactor. Analisis Mactor menyediakan beragam alat dan analisis yang berguna untuk mendapatkan informasi  dan agregat situasi dari beberapa masukan sederhana tentang permasalahan yang sedang dianalisis. Aktor-aktor adalah para stakeholder yang terkait dengan pembangunan sektor perikanan di Kabupaten Natuna.  Data dikumpulkan dengan teknik wawancara dan  diskusi terfokus (FGD). Hasil penelitian menunjukkan aktor-aktor pedagang, pelaku usaha BBM, dan pemilik cold storage merupakan aktor-aktor yang mempunyai peranan/pengaruh yang tinggi dan mempunyai ketergantungan yang rendah (terletak pada kuadran I/Kiri Atas). Sebagian aktor berada di kuadran II adalah aktor yang mempunyai pengaruh tinggi, namun juga mempunyai ketergantungan yang tinggi. Aktor tersebut adalah nelayan, penyuluh, koperasi, tauke, Lembaga Pengelola Modal Usaha Kelautan dan Perikanan (LPMUKP), perbekalan, pengelola Sentra Kelautan dan Perikanan Terpadu (SKPT), Kelompok Usaha Bersama (KUB), Dinas Kelautan dan Perikanan Kabupaten Natuna, Direktorat Jenderal Perikanan Tangkap (DJPT), Perusahaan Umum Perikanan Indonesia (Perum Perindo) dan Direktorat Jenderal Pengawasan Sumberdaya Kelautan dan Perikanan (PSDKP). Diperlukan keterpaduan antar stakeholder untuk dapat meningkatkan pengaruh sektor perikanan dalam pembangunan daerah. Stakeholder yang mempunyai pengaruh rendah dan mempunyai ketergantungan yang tinggi, diperlukan perhatian agar pengaruhnya lebih tinggi dan ketergantungannya lebih rendah.Kata kunci: aktor/pemangku kepentingan; ketergantungan; mactor; pengaruh; perikananabstractThe role of fisheries in the Natuna Regency economy tends to increase. Its contribution to Natuna Regency's GRDP is 9%, but if oil and gas is not counted its role is almost 30%. Problems in increasing the fisheries sector in the regional economy: remote geography, limited transportation facilities, fish theft (IUU Fishing), limited number and size of ships and fishing gear and lack of integrated cooperation among stakeholders / stakeholders. The research objective is to determine the role of stakeholders / actors in the formulation of fisheries development strategies in the outer regions of Natuna Regency. The study was conducted in Natuna Regency in March-November 2017. The analytical method used was the Mactor analysis approach. Mactor analysis provides a variety of tools and analysis that are useful for getting information and aggregate situations from a few simple inputs about the problem being analyzed. Aktors are stakeholders related to the development of the fisheries sector in Natuna Regency. Data was collected by interview technique and focused discussion (FGD). The results showed that traders, fuel business actors, and cold storage owners are actors who have a high role / influence and have a low dependency (located in quadrant I / Upper Left). Most of the actors in quadrant II are actors who have a high influence, but also have a high dependency. The actors are fishermen, extension workers, cooperatives, tauke, Marine and Fisheries Business Capital Management Institution (LPMUKP), Supplies, SKPT Manager, business group, Fisheries Agency of Natuna Regency, Directorate General of Capture Fisheries (DJPT), Indonesia Fisheries State-owned enterprises (Perum Perindo) and Directorate General of Marine and Fisheries Resources Supervision (PSDKP). Integration among stakeholders is needed to increase the influence of the fisheries sector in regional development. Stakeholders who do not have influence and have a high dependency, attention is needed so that the influence is higher and the dependency is lower.Keywords: actors / stakeholders; Mactor, influence, dependency, fisheries

scholarly journals FAKTOR-FAKTOR KESELAMATAN PENGOPERASIAN ALAT TANGKAP PURSE SEINE DI KEPULAUAN RIAU

2021 ◽  
Vol 8 (1) ◽  
pp. 91
Author(s):  
Suci Asrina Ikhsan ◽  
Rangga Bayu Kusuma Haris ◽  
Alif Pasya Maulidanny
Keyword(s):  
Task Analysis ◽  
Research Method ◽  
Purse Seine ◽  
Fishing Gear ◽  
Total Work ◽  
Work Intensity ◽  
Hierarchical Task Analysis ◽  
Safety Work ◽  
The Subject

Safety work on board in connection with capture fisheries specifically has the aim of preventing or reducing accidents and their consequences in the possibility of hazards and risks when carrying out activities on board. The purpose of this study was to describe the fishing operation activities using purse seine fishing gear that can pose risks and identify opportunities for failure and possible consequences that will occur when carrying out fishing activities and to determine the role of safety work on board. The research method used Hierarchical Task Analysis (HTA) to examine every activity involved in the operation of the purse seine fishing gear by dividing each activity into sub-activities carried out in the plan and descriptively utilizing problem-solving procedures investigated by describing the condition of the subject or object. The operation of purse seine fishing gear in Batam City has the potential to cause fatigue, injury, drowning, injury consequences. There are 58 activities out of 8 activity stages in the operation of the purse seine fishing gear with a Total Work Intensity (IKT) value of 557 OA (Activity Person). The value of Primary Work Intensity (IKP) at the hauling stage was the highest (0.317) with a total work intensity of 154 OA.

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