• Title/Summary/Keyword: fishing port

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Development of Wharf in Fishing Port with Tranquility Using the Arrays of Upright Perforated Plates ( 1 ) (직립 소파판을 이용한 어항 정온화 접안시설 개발 ( 1 ))

  • Kim, Hyeon-Ju;Cho, Il-Hyeong;Choi, Hak-Sun
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.32 no.3
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    • pp.286-293
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    • 1996
  • This paper established the analytical model of sea surface oscilation of simple type fishing port with vertical wave absorbor. This model is composed by MAEM(Matched Asymptotic Expansion Method) for wave amplification in fishing port and EEM(Eigen - function Expansion Method) for wave absorbing characteristics against vertical perforated plates. Dimensionless porosity by adopting Darcy's law was introduced to evaluate wave absorbing characteristics of the perforated structure. Using the model, the efficiency of the vertical perforated plates was studied for fishing port tranqulity with number of plates, array method and plate intervals. Optimal design and arrangement of perforated plates can be applied to develop multipurpose fishing ports and villages.

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Estimating the Development Potential of Urban Fishing Ports in the Region of Busan, Korea (부산권역 어항의 도시형 어항 개발 가능성 평가)

  • Kim, Young-Po;Ryu, Chang-Ill;Yoon, Han-Sam;Kim, Heon-Tae
    • Journal of Fisheries and Marine Sciences Education
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    • v.19 no.3
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    • pp.355-365
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    • 2007
  • This study examined the essential elements of urban fishing ports in the region of Busan in terms of the hydrography, geomorphology, and urban functions of each fishing port and then estimated their development potential. The results were as follows: (1) The ports in the eastern and central parts of the Busan region, used mostly for fishing, were open or quasi-open type ports with ${\Omega}>0.8$, while those of the western part tended to show the reverse. (2) Of the 51 fishing ports, 37.3% were located on land inside the coastline, and structures such as breakwaters had been constructed on both sides of the entrance. Of the total, 47.1% were small fishing ports with water depths of 0~1 m. (3) In the Busan region, 39.2% were urban fishing ports, including Daebyeon and Dadaepo, and 60.8% were non-urban fishing ports.

Analysis of the Impact of Investment in National Fishing Ports on Fishery Income Opportunities Using the Propensity Score Matching Difference-in-difference Method (국가어항 투자의 어업소득 기회 영향 분석: 성향점수매칭 이중차분법을 이용하여)

  • Kim, Bong-Tae
    • The Journal of Fisheries Business Administration
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    • v.53 no.3
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    • pp.85-101
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    • 2022
  • This study analyzed the performance of the national fishing port development project, which lacked ex-post impact evaluation despite a lot of investment in terms of fishery income opportunities. Using micro data from the Census of Agriculture, Forestry, and Fisheries, the sales amount of fishery products and the proportion of fishery-related businesses were used as performance indicators. The fishery households in the fishing port area (treatment group) and those not in the area (control group) were classified through data pre-processing, and factors unrelated to the fishing ports were controlled using the propensity score matching difference-in-difference method. The analysis target is six fishing ports with large investment in from 2010 to 2014. As a result of the analysis, it was confirmed that the sales of fishery products increased significantly in four of the six fishing ports, and the proportion of fishery-related businesses increased in two fishing ports. The analysis method of this study can be fully utilized in the evaluation of the Fishing Community New Deal 300 Project, which is in need of performance analysis.

Benefit-Cost Analysis for Developing Jeongja Port in Ulsan (울산지역 어항개발의 경제성 평가 - 정자항을중심으로 -)

  • Kim, Tae-Yong
    • The Journal of Fisheries Business Administration
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    • v.39 no.1
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    • pp.63-85
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    • 2008
  • The objective of this study is to review the methodology of economic analysis of fishing ports by examining the economical feasibilities of a national fishing port (Jeongja Port) in Ulsan. This study utilized market value evaluation method to measure the benefits and costs related to the development of ports. The benefit variables are income effects resulting from the developments while the cost variables are sum of construction costs and maintenance costs. The income effects are measured in two ways: (1) income from individual project resulting from the developments, (2) the income effects by utilizing investment multipliers. The results shows that the BC ratio (Benefits/Costs) of Jeongja port by using (1) income from individual project resulting from the developments was 1.07 while the BC ratio by using (2) the income effects by utilizing investment multipliers was 1.10 due to a relative short period of useful life for investment multipliers. However, the income variable utilizing investment multipliers is more sensitive to the period of duration than the income variable from individual project.

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A Fundamental Study on the Improvement of Harbour Tranquility and Water Quality of Fishing Port (어항의 정온도 향상과 수질개선을 위한 기초적 연구)

  • Ryu, Cheong-Ro;Kim, Jong-Hwa;Park, Jong-Hwa
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.26 no.4
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    • pp.341-352
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    • 1990
  • The purpose of this research is to develop the design/control method that can be used for the improvement of harbour tranquility and water quality of fishing ports. For this end, firstly, the hydraulic environmental characteristics of fishing ports in the coastal waters of the Korean Peninsula are analysed and discussed combined with disasters of facilities and vessels in the ports. Secondly the problems of water quality control is pointed out considered with the improvement measures of harbour tranquility such as the methods of lengthen of main breakwaters and construction of wave absorbing structures. Finally, the control characteristics of composite functions of water quality and tranquility of fishing port are discussed and the improved control method si proposed using the experimental results for the various measures. The proposed measure is proved to be a applicable method to improve these two main functions on the design of fishing port.

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A study on the status of octopus pot fishery in the coastal seas of Gyeongbuk, Korea (우리나라 경북 연안해역 문어통발 어업실태에 관한 연구)

  • YANG, Jae-Hyeong;LEE, Soo-Jeong;KIM, Pyungkwan;JUNG, Jung-mo;KIM, Seonghun
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.58 no.2
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    • pp.95-105
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    • 2022
  • In this study, the fishery status of the octopus pot fishery in the east coastal sea were investigated, and the fishing performance of each pot shape was compared and analyzed. The fishery status survey was conducted through listening surveys at Jukbyeon Port, Uljin Port and Pohang Daebo Port in Gyeongbuk Province, and the amount of fishing gear used, fishing method, size and loss of octopus pot fishery was investigated. On the east coastal sea, octopus is one of the commercially important fish stocks and is caught in inshore pots, inshore combos, inshore gillnets and offshore pots. Among these fishing methods, pot fishing yields the highest catch. The shape of the pot differs depending on the region. In Uljin (Jukbyeon Port and Hupo Port), Gyeongbuk, rectangular type net pots are mainly used, and in Pohang (Daebo Port) in Gyeongbuk, drum-type pots are mostly used. Enteroctopus dofleini accounts for more than 90% of the catch of octopus. For the octopus fishing performance test by trap type, three types of traps (rectangular pot, drum pot and cylinder pot) were used on the coastal sea of Pohang Daebo. As a result, the total catch by pot shape was shown in the order of rectangular-type pot > drum-type pot > cylinder-type pot. The catch of octopus, the target species, was in the following order: rectangular-type pot > drum-type pot > cylinder-type pot. Such result shows a significant difference (Mann-Whitney test, p<0.05).

A Safety Assessment on Fishing Vessels' Entering or Leaving the Port of Gamcheon (감천항내 연근해 어선 출·입항에 따른 안전성 연구)

  • Jeong, Ho-Sun;Seo, Byeong-Kui;Kim, Seong-Gi
    • Journal of Fisheries and Marine Sciences Education
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    • v.19 no.3
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    • pp.441-456
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    • 2007
  • The purpose of this study was to obtain an objective conclusion of safety assessment and to suggest proper countermeasures for the fishing vessels' entering or leaving the port of Gamcheon, in where the pier No. 4 for the fishing vessels will be newly opened soon. 20 times of the manoeuvring simulation were performed respectively onto entering and leaving the port of Gamcheon with the various conditions in weather and current, and then each of result was carefully analyzed. In spite of some increasing demand of entering the port in future, the safety will not be largely worse if the suggestion will be taken.

Research on improvement measures of Harbor tranquility in Geumjin Fishing Port Excited by Incident Short Random Waves (단주기 불규칙파에 의한 금진항 정온도 개선대책 연구)

  • Chang, Sung-Yeol;Moon, Yong-Ho;Park, Won-Kyung
    • Journal of Coastal Disaster Prevention
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    • v.4 no.1
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    • pp.1-6
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    • 2017
  • Most of the short period waves are blocked by the breakwaters when the short period irregular waves propagate into the ports. However, nonlinear irregular wave numerical experiments show that the long waves generated by the nonlinear interaction is predominant in the port. Seiches phenomenon in Geumjin Fishing Port is very similar to 60 and 300 second harbor oscillations. By arranging the inner breakwater of the proper length in the inside of the port, it is possible to effectively reduce seiches, as well as the short-period wave, and significantly improve the harbor tranquility. In the case of rectangular basin type such as the Geumjin Fishing Port, the multi-directional irregular wave numerical model should be used for the investigation and countermeasures for the harbor tranquility.

South Korea and Japan's fishing Villages law and Sea Port law Analysis and the Development Direction of Fisherina (한국과 일본의 어촌·어항법 분석과 피셔리나 개발방향)

  • Yang, Young-Cheol;Lee, Jae-Hyung
    • Journal of Navigation and Port Research
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    • v.36 no.1
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    • pp.81-87
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    • 2012
  • This study is enabled our country to compare and analyze Korea's and Japan's marina development related fishing villages in the sea ports, sea port law's systematical research, approved permissions, and operation related ordinance enactments. Henceforth, the results of the research regarding the fisherina development model appropriate for domestic circumstances are as follows. First, the fisherina must be developed in a way to create a new source of income in the fishing villages. The initial steps must be taken in improving the fishing industry and revitalizing the marine leisure sports. Second, there must be a development of a system to reduce its development costs. Third, the existing sea port's unused equipments must be developed in a remodeled form.

A Study on the Formation of Modern Urban Space in Harbor City - Focusing on Transformation of the Urban Street and Canal Space in Yokohama Japan - (항구도시 근대 도시공간 형성에 관한 연구 - 요코하마시 가로 및 운하의 변용을 중심으로 -)

  • Hong, Ji-Wan;Kim, Jun;Yoo, Jae-Woo
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.34 no.4
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    • pp.133-140
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    • 2018
  • This study is change of the street space of the port city of Yokohama and the transformation process of the canal. modern port city Yokohama is a region that was responsible for the development of East-West maritime transport routes in Japan in the 17th century and the inland transportation through fishing villages and ports. it has also grown rapidly as a regional port and new port. In particular, through the revitalization of trade between foreign settlements and Japanese residents in the port area, the existing fishing area became a modern port city space. Yokohama went through the following process and grew into a modern port city. The construction of the port harbor and the maintenance of existing logistics functions, the formation of the central horizontal axis through maintenance of the fishing village, the construction of the logistics movement route to the inland area through the construction of the canal, the expansion of the horizon for fire prevention and fire restoration, The formation of a new settlement space according to the movement, the transformation of the existing religious axis by the combination of the elaboration and the introduction of modern transportation, and the spatial connection between the inland cities.