• Title/Summary/Keyword: Fishing boats

Search Result 238, Processing Time 0.023 seconds

The Research Process and the Problems in Statistics of The Chronicle of Korea Fishery (『한국수산지(韓國水産誌)』의 조사방법과 통계자료의 문제점)

  • Rhee, Kun-Woo
    • The Journal of Fisheries Business Administration
    • /
    • v.45 no.3
    • /
    • pp.39-53
    • /
    • 2014
  • This paper is to survey the research process and the problems in statistics of The Chronicle of Korea Fishery. The contents of The Chronicle were researched by two groups. One group is the managers of every province, the other group is the officers of every county. The managers performed the literature investigation research and field study and also arranged the reports from the county officers. But the managers seemed not to pay the full attention about the consistency of contents. The main contents about fishery are the number of coastal households and population, the number of fishery households and population, the number of fishing boats and fishing net. The body of The Choronicle and the table of fishing affairs in the appendages must be carefully compared to use the statistics. Though these statistics lack the consistency, the number of fishery households and boats deserves the attention. The fishing households account for less than 3% of all households, and about one third of fishing households has fishing boat.

A Study on the Method of Estimating the Greenhouse Gas Emissions Base on the Classification of Fishing Boat (어선 분류체계별 온실가스 배출량 추정방법에 관한 연구)

  • Kim, Pil Su;Kim, Joung Hwa;Son, Ji Hwan;Kim, Jeong Soo;Choi, Sang Jin;Park, Seong Kyu;Park, Geon Jin
    • Journal of Climate Change Research
    • /
    • v.5 no.4
    • /
    • pp.301-311
    • /
    • 2014
  • In this study, we estimated the amount of fuel used fishing boats of individual based on the results of survey of the activity data such as operations and activities specification of fishing boats in Korea. Based on the classification system of the domestic fishing boat, and to estimate average fuel consumption and the greenhouse gas emissions, showed emission factors per fishing boat. This was suggested to be able to apply the registration data area in the future, and estimates the emissions of greenhouse gases. Based on these results, it tries to provide the basic data that can be used when you want to create a local government measures to reduce scenario in the future.

A study on noise removal technique for acoustic data from a fishing boat (조업선에서 수집한 음향자료에 대한 잡음 제거 기법에 관한 연구)

  • LEE, Hyungbeen;CHOI, Seok-Gwan;LEE, Kyounghoon;LEE, Jae-Bong;LEE, Jong-Hee;CHOI, Jung-Hwa
    • Journal of the Korean Society of Fisheries and Ocean Technology
    • /
    • v.51 no.3
    • /
    • pp.340-347
    • /
    • 2015
  • The Commission for Conservation of Antarctic Marine Living Resources (CCAMLR) is utilized to manage krill resources using acoustic data collection and a scientific observer program operating on the fishing boats. However, the acoustic data were contained seriously noise, example of background, spike, and intermittent noise, due to purpose of fish boats. In this study, the noise removal techniques were confirmed the potential of the acoustic data analysis. Acoustic system and frequency used in the survey were commercial echosounder (ES70, SIMRAD) and 200 kHz split beam transducer. Acoustic data were analyzed using Echoview software (Myriax), and general data analysis and new noise removal method was used. Although a variety of noise, most of the noises have been removed using the noise removal processing. We confirmed the possibility of analyzing the acoustic data obtained from fish boats. The results will be useful for analysis of the acoustic data acquired from krill fishing boats.

A Study on the Resistance Performance of Korean High-Speed Small Coastal Fishing Boat (한국 고속 소형 연안어선의 저항성능 연구)

  • Yu, Jin-Won;Lee, Young-Gill;Park, Ae-Seon;Ha, Yoon-Jin;Park, Cheong-Kyu;Choi, Young-Chan
    • Journal of the Society of Naval Architects of Korea
    • /
    • v.48 no.2
    • /
    • pp.158-164
    • /
    • 2011
  • The study on the improvement of resistance performance is very important for coastal fishing boats in Korea, because the prices of fuel oil are gradually risen and the demand of high-speed fishing boats is increased lately. This study is concerned with the improvement of the resistance performance for Korean high-speed small coastal fishing boats. A semi-planing hull form of Korean small coastal fishing boat is selected in the role of initial hull. From the modification of the hull form parameters and the local characteristics of the hull form, the improvement of the resistance performance is achieved. The resistance performances of the initial and the modified hull forms are estimated by using a numerical simulation method. Also, ship model tests are carried out in ship model basin.

A study for rolling reduction of fishing boat by utilizing u-type fish-hold (낚시 어선의 U형 어창을 이용한 횡요 감쇠에 관한 연구)

  • Choi, Chan-Moon;Ahn, Jang-Young
    • Journal of the Korean Society of Fisheries and Ocean Technology
    • /
    • v.44 no.2
    • /
    • pp.148-156
    • /
    • 2008
  • In this study it will be discussed how to solve the problem of discomfort from rolling motion on the fishing boats. Most discomfort is caused by the short cycle of rolling due to the light weight of the boats. The light weight is due to the FRP material which dries a boat. A way to improve the feeling of boarding by using fish hold was researched. The experiment was done on experimental fishing boat made by FRP in Jeju. An existing fish hold was designed and manufactured through the rolling test and that was used for a marine experiment. The rolling condition of the U-tank boat ideally designed was compared to that of an existing fishing boat using the same conditions. The experiments were carried out two times on the stop engine in the outward Sehwa fishing port, which the experimental data had analysed for effects of rolling reduction to compare the U - tank with the of exiting fish hold. The results were confirmed that the U-boat tank in the roll period and GoM were more safe than the existing fish hold and the average amplitude and significant of rolling angles were decreased relatively.

Utilization of the Information of Fishing and Sea Condition for Common Squid (Todarodes pacificus) Using Angling in the East Sea: Relationships between Fishing Ground and Sea Temperature (동해 오징어(Todarodes pacificus) 채낚기어업의 어·해황정보의 유효이용 -어장형성과 수온과의 관계-)

  • Jeong, Dong-Gun;Rho, Hong-Kil
    • Journal of Fisheries and Marine Sciences Education
    • /
    • v.10 no.1
    • /
    • pp.31-52
    • /
    • 1998
  • In this paper, we analyzed the relationships between the fishing ground formation and the sea condition information, surface, mid and bottom layer temperature that is necessary for fishing point selection of angling to catch squid in the East Sea. There was a little differences between temperature measured by every fishing boat on fishing operating and prompt reports of fishing and sea condition about fishing ground formation of angling. And then the result examined by using SST that is a important information of sea condition for the fishing position selection follows as ; We knew, even if the differencs of sea condition each year, SST with a lot of fishing boats was generally within the extnet of $2^{\circ}C$. But the result examined by the limit time about the temperature of mid and bottom layer for the groups of fishing boats not to measure and for the near sea measurement to be done only within EEZ waters follows as ; About the temperature of 50m layer on early in June and July in operating waters of the group of fishing boats, the fishing ground was formed from $10^{\circ}C$ to $12^{\circ}C$ between warm waters and cold waters, afterwards we can seize that the fishing ground was moving to waters from $5^{\circ}C$ to $8^{\circ}C$ at near of polar front. In the coastal waters, we knew that fishing ground is formed to waters from $10^{\circ}C$ to $12^{\circ}C$ at the southern of polar front about the temperature of 50m layer.

  • PDF

A Study on Management of Foreign Seamen on Board Coastal & Offshore Fishing Boats (연근해어선에 승무하는 외국인 어선원의 관리방안)

  • Cha, Cheol-Pyo;Park, Jong-Un
    • Journal of Fisheries and Marine Sciences Education
    • /
    • v.23 no.3
    • /
    • pp.515-525
    • /
    • 2011
  • Due to changes in internal and external environment of coastal & offshore fishery such as decrease in coastal & offshore fishery resources, rising labor costs, rising gas prices, rising turnover rate of seamen, and intensified avoiding 4D types of business, the domestic seamen's avoidance of going to sea is being intensified. In order to solve the problems of domestic seamen shortage, coastal & offshore fishery businesses prefer to employ foreign seamen whose wages are relatively low, so employment of foreign seamen continues to increase. However, the foreign seamen system has the problems in selecting and managing seamen but these problems have been not adequately dealt with, so damages to fishery business continue to occur due to the seamen's deserting. The cases, in which foreigners who entered the country to take the sea in coastal & offshore fishing boats deserted their workplace, recorded 36.4% as of 2010. So in order to achieve the purpose of the foreign seamen system itself through rational management of foreign seamen, the exclusive organization to manage foreign seamen should be established and the system to rationally select foreign seamen who have experiences of fishery should be established. The utilization of foreign seamen during off season needs to be maximized by establishing the employment connection system for the management of foreign seamen and employment stabilization, and the exclusive organization for education of foreign seamen and the organization for nurturing domestic seamen need to be established and operated.

A Study on the HANSUN Boat Type for Development of Sailing Boat (세일링보트 개발을 위한 한선선형 연구)

  • Park, Gen-Ong;Kim, Dong-Joon
    • Proceedings of the Korea Committee for Ocean Resources and Engineering Conference
    • /
    • 2003.10a
    • /
    • pp.53-59
    • /
    • 2003
  • The Study of Hansun(Traditional Fishing Boat of Korea) is based on Fishing Bost Investigation Report which began in 1921. The Report was completed in 1927 with the conclusion of Southern sea Region and Western sea Region studies which included the investigation of the entire region. Based on this report, this paper surveys Hansun's characteristics style of boat and performance. The First couple of chapters are possibility of combining type of Hansun and modern Sailing Boat. As a result we find out that the hull form of Hansun is very similar with that of modern sailing boats and is a good candidate for the mother ship to develop the modern sailing boats for Korean sea.

  • PDF

A study for construction of Shore-end Submarine cable (천해부에서 해저케이블 건설 연구)

  • Jung, Jae-Jin;Lee, Young-Sun;Shin, Hyun-Shik
    • The Journal of the Korea institute of electronic communication sciences
    • /
    • v.2 no.3
    • /
    • pp.185-190
    • /
    • 2007
  • The biggest cause of submarine cable fault is fishing activity such as 70% by anchor of fishing boats and occurs within 200m the depth of water. It needs a regulation for protection of submarine cable from the fishing boats and construction of cable at shore-end. This paper is studying a plan and regulation to install the construction among the subsee users, and the burial technique of submarine cable at shore-end suggests to manage from company to government.

  • PDF

Empirical Analysis on Economic Factors of Infringement on Ocean Sovereignty from Chinese fishing boats (중국어선 해양주권 침해의 경제적 요인에 관한 실증적 연구)

  • Oh, Sang-Jin;Choi, Kyoung-Hoon;Park, Gyei-Kark
    • Journal of Korea Port Economic Association
    • /
    • v.33 no.3
    • /
    • pp.69-90
    • /
    • 2017
  • Areas of marine activity have expanded into exclusive economic zones and the continental shelf since the United Nations Convention on the Law of the Sea(UNCLOS) in 1994, The signatory countries have been enforcing their maritime rights and competition in the international community has become intensified. Marine-related issues, including maritime sovereignty, has become an increasingly important issue with many national security and related studies following this trend. However, while there are many policy-related studies there remain few empirical studies. This paper conducted a study of illegal cases of Chinese fishing boats which are quite frequently for an empirical study on maritime sovereignty. This study conducted empirical analysis regarding factors relating to ocean sovereignty infringement by using correlation and multiple regression analysis. The result of observed increases in illegal Chinese fishing boats decreased the production of aquatic products, whish resulted in economic fishery losses to Korea households and inflation in the Korean economy.