• Title/Summary/Keyword: fishing

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Proposed optimal fishing-ground plan to increase productivity in the Ki-jang coastal region of Busan, Korea (양식어장 생산성 향상을 위한 적정배치방안-부산 기장연안을 중심으로-)

  • Yoon, Han-Sam;Kim, Heon-Tae;Ryu, Cheong-Ro;Kim, Young-Po
    • Journal of Fisheries and Marine Sciences Education
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    • v.17 no.3
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    • pp.361-372
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    • 2005
  • The purpose of this paper was to examine the status of unlawful actions in the fishing grounds located in the Ki-jang coastal region of Busan, Korea, and to develop an optimal fishing-ground plan that will increase the productivity of fisheries resources. We examined the impacts of important factors influencing the basic environment of the fishing grounds at the study site, as including the physical environmental conditions of water temperature and qualies. In addition, we administered a survey that focused on the necessity of enhanced maintenance of the fishing grounds at this site. As a result, we identified some required management action for the fishing grounds and proposed an optimal fishing-ground plan to increase productivity in the Ki-jang coastal region of Busan.

A Study on the Standard of Ship Hull Construction for Aluminium Alloys Fishing Boats (알루미늄 합금제 어선건조를 위한 선체구조기준 설정에 관한 연구)

  • Hong, Bong-Ki
    • Journal of Fisheries and Marine Sciences Education
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    • v.12 no.1
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    • pp.22-82
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    • 2000
  • The ship hull construction materials of fishing boat has changed in order that wooden, steel, and fiber glass reinforced plastic(FRP). The fishing boat made from FRP has increased every year because that materials has proved excellent of the characteries for fishing boats construction members. Recently, FRP tend towards evasion for the pollution of air enviroment. Therefore. the materials of fishing boat construction must be exchanged by another one. Aluminium alloys must be recommended for fishing boats construction mateials because that is light weight and corrosion resisting in the sea water. Regulation of the standard of ship hull construction for aluminium alloys fishing boats did not enact laws in the interior now. Therefore, this regulation was studied by the following items. that is Rudder, Bottom construction, Side hull plate construction, Deck plate construction, piller. Water tight bulkhead, Deep tank, Fish tank, Stern construction, Superstructure, Deck house construction, Hatch, Engine room opening, Hatch opening, Bulwark, Welding and Rivet etc. A study on the regulation will be contributed to enact laws for fishing boat construction of aluminium alloys.

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A Study on the Development of Suitability Site Indicator for Urban-Rural Migration/Return to Fishing (귀어·귀촌 적지지표 개발에 관한 연구)

  • Jang, Young-Soo;Lee, Jung-Phil;Kim, Ji-Ung;Song, Young-Taek
    • The Journal of Fisheries Business Administration
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    • v.49 no.2
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    • pp.49-65
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    • 2018
  • The aim of this study is to develop suitability site indicator of urban-rural return to fishing and to analysis priority of the indicators. The study is based on literature review, expert survey and AHP(Analytic Hierarchy Process) methods. This study found 5 factors(natural environment, acceptance environment, social overhead capital, economy, fishing environment) and 21 detail variables. as a result of AHP, fisheries resources, acquisition convenience of fishing license, income(except fishing), attitude of local resident, one-person household income, high income fishing were showed high priority. This result indicate that economic foundation is most important factor for suitable site of the returning.

A Study on the Problems and Improvement measures of Investigation of Fishing Damages Caused by Offshore Wind Power Development (해상풍력 발전사업에 따른 어업피해조사 문제점 및 개선방안에 대한 연구)

  • Youn-Suk Nam;Hyun-Gi Choo;Geo-Hyun Ryu
    • The Journal of Fisheries Business Administration
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    • v.54 no.2
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    • pp.91-107
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    • 2023
  • Offshore wind power development has been promoted in countries around the world to cope with global warming. Despite its many advantages, offshore wind power affects the marine environment during construction and operation. As a result, the reduction of fishing areas, changes in the habitat of marine animals, damage to fishing gear, and impeding the safety of fishing activities are occurring. If the offshore wind power generation project is carried out, a fishing damage investigation is nescssary. There are only four fishing damage investigations related to offshore wind power, which are being conducted similarly to the existing fishing damage investigation related to offshore construction. Therefore, this study reviewed and analyzed the report on fisheries damage investigation related to offshore wind power conducted in Korea and suggested problems and improvement measures accordingly.

Recovery of Lost Fishing Gear in Alaska Pollack Fishing Ground of the East Coast in Korea (한국 동해안 명태어장에 분실된 폐어구수법에 관한 연구)

  • 안영일;박진영;조현정
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.37 no.1
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    • pp.9-17
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    • 2001
  • To improve the fishing environment of Alaska pollack fishing ground of the East coast in Korea, lost fishing gear were recovered from June to July 1998, May 1999 and from July to August 1999 in the sea near Goseong, Gangwon province. The lost fishing gear was recovered by grapnel. As the results, the lost fishing gear, which was consist of gill nets and traps, was produced from fishing activities, whereas most of them was the bottom gill nets. The weight of lost fishing gears was gill nets of 1,170 t and traps off 4t. The recovered gill nets decreased 12.02 t per mile from 22.74 t, in 1998 to 10.72 t, in 1999. Recovery rate of lost fishing gear was low as 38% in 1998, 41.9% in 1999 and CPUE was 11.27 t/trial in 1998, 7.48 t/trial in 1999. The recovery of lost fishing gear in fishing ground by using grapnel was considered as a useful method.

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An analysis on catch and fishing power of trammel nets by fishing ground (삼중자망에 의한 해역별 어획량 및 어획성능 비교)

  • Bae, Bong-Seong;Park, Hae-Hoon;Jeong, Eui-Cheol;An, Heui-Chun;Yang, Yong-Su;Chun, Young-Yull
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.45 no.2
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    • pp.96-105
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    • 2009
  • For an effective management of fisheries resources, we need fisheries informations necessary for the establishment of reasonable fishing effort and TAC distribution. We carried out fishing research using trammel nets in the coastal sea of Susan-port(Yangyang, Gangwondo, Korea) and Hupo-port(Uljin, Gyeongbukdo, Korea) and analyzed fishing power variation of the fishing gear in terms of species composition, condition and so on for both sites. A total of 29 species were caught with most dominant species of Hippoglossoides dubius followed by Pseudopleuronectes herzensteini, Lophius litulon and Alcichthys elongatus in Susan. The total number of species caught in Hupo was 37 species with most dominant species of Todarodes pacifius followed by Lophius litulon, Hexagrammos agrammus and Pseudopleuronectes herzensteini. CPUE of Susan fishing area per trammel net was 12.74 fish and 2.00kg on average, while it was 6.80 fish and 2.27kg on average for Hupo. The fishing power index for both sites was 1, placing the two fishing grounds in a same level.

Change of relative fishing power index from technological development in the offshore large powered purse seine fishery (근해대형선망어업에서 어로기술개발에 따른 어획성능지수 변동)

  • SEO, Young-Il;HWANG, Kang-Seok;CHA, Hyung-Kee;OH, Taeg-Yun;JO, Hyun-Su;KIM, Byung-Yeob;RYU, Kyong-Jin;LEE, Yoo-Won
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.53 no.1
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    • pp.12-18
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    • 2017
  • Lots of fishery stocks are overexploited and the overcapacity exists in Korean fishing fleets. One of the reasons is technological development, which increases the efficiency of the vessels continuously. The analysis was conducted to identify the change of fishing power index to develop the vessel and gear technology that may have improved the fishing efficiency of the offshore large powered purse seine fishery from 1960s to 2010s. Gross tonnage and horse power per fishing vessel was increased annually. Fishing gear material was changed to the knotless webbing to settle faster. Fishing equipments was modernized and supply rate was also increased. Therefore the relative fishing power index in the offshore large powered purse seine fishery increased from 0.4 in 1970 to 1.0 in 1980, to 1.5 in 2000 and to 1.6 in 2010, but the rate of increase slowed down gradually. The results are expected to contribute to reasonable fishery stock management.

Autilization and management of common octopus (Octopus minor) resources in the Tando bay on the southwest coast of Korea (한국 탄도만 낙지자원의 이용과 관리)

  • Oh, Taeg-Yun;Kim, Joo-Il;Seo, Young-Il;Lee, Sun-Kil;Cho, Mun-Seung;Joo, Hyun;Jeong, Sun-Beom
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.47 no.1
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    • pp.18-26
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    • 2011
  • This study is to contribute to income growth of fishermen by the common octopus fishery characterized in the Tando Bay on the southwest coast of Korea. This area is engaged in Longline fishing (301 persons), Shovel fishing (196 persons), Trap fishing (14 persons) and Torch light fishing (40 persons) in 2008. Population who is joined in the spring becomes main fishery target population of longline fishery in the fall because entering fishing ground in August, and is joined in the fall becomes main fishery target population of longline fishery in the spring because entering fishing ground in December. Average size of common octopus examined by longline 6.26cm, 5.82cm for Shovel fishing, 8.09cm for trap, and expressed big difference by fishery. It needs necessary various kinds of Octopus resource management actions and methods in continuous use. Specially, Fishing force increased by fishing automation system, so the reduction of fishing force is needed to increased by fishing force. Government support and fishermen's self-conscious of resource management is needed.

On the Development of Urban Fishing Ports in Busan - Focusing on the Development Demands of Interested Parties - (부산지역 도시형 어항의 정비방향 - 이해관계자의 정비수요 분석을 중심으로 -)

  • Seo, Geum-Hong;Kim, Jae-Bong;Oh, Yong-Sik
    • Journal of Navigation and Port Research
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    • v.34 no.6
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    • pp.493-501
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    • 2010
  • In the central Busan area from Haeundae to Saha, fishing villages are vanished actually in the progress of urbanization, and 17 fishing ports surrounded by urbanized area are left alone and isolated. But, we think these urbanized fishing ports are the very resource which grant the identity as the marine city and they have considerable potentials to enhance the value of neighboring community depending on the proper development of it. In this study, we defined the fishing ports in central Busan area as the representatives of 'urban fishing port', and tried to find the way of coexistence and harmony between 'city' and 'fishing port'. For this purpose, we investigated the fishery potentials, physical environments and development demands of 17 fishing ports in central Busan area, and composed opinions from fishing communities and neighboring inhabitants to set up the long term directions of urban fishing ports development for harmonious coexistence of city and fishing port.

The Evaluation Analysis of the Local Fishing Port Construction Project in Connection with Fishery and Fishing Village (어장·어촌과 연계한 지방어항건설사업의 평가분석)

  • Shin, Seung-Sik;Park, Ju-Sam
    • Journal of Fisheries and Marine Sciences Education
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    • v.20 no.3
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    • pp.369-380
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    • 2008
  • The government has promoted the local fishing port construction project since 1972 for conquest of the crisis of the fishing village by withering of a fishery, the improvement in fishermen's living environment and quality of life, and promotion of fisheries. In order to estimate the local fishing port construction project objective and synthetically, and to grope for the method proposal of system establishment of the project, the monitoring survey was carried out. The monitoring survey was classified into the program and the performance monitoring. The program monitoring was carried out in order to investigate the project fit for the inhabitants of a fishing village. The performance monitoring was carried out in order to investigate the development latent powers, fishery latent powers, tourism latent powers of a fishing village, rural settlement conditions, etc. using various statistical materials. Since investigating the measured value before executing a policy was not completed, the project effect was compared with the measured value of other areas. According to the local fishing port construction project, the development latent powers, fishery latent powers, and tourism latent powers of the fishing village where the project was undertaken improved greatly, and income of the fishing village increased greatly. As a result of comparing project fit in order to evaluate the project, the project fit of the local fishing port construction project area was higher than the non-project area. Desirable method proposal of monitoring survey was established and the method for raising the efficiency of monitoring survey was extracted.