• Title/Summary/Keyword: Fishing types

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A change of rigging method for purse seine gear of Korea tuna purse seine fishery in the Western and Central Pacific Ocean (중서부태평양 한국 다랑어 선망어업에서의 어구 구성의 변화)

  • Ryu, Kyung-Jin;Lee, Yoo-Won;Kim, Hyung-Seok
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.51 no.1
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    • pp.50-60
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    • 2015
  • This paper conducted research on identifying the process of change in fishing gear and organizing the function of periodically-used fishing gear types through net plan and computer simulation by selecting the design of the four types of fishing gear used for the Korea tuna purse seiner in the Western and Central Pacific Ocean, which 1,000 G/T class and whose length over all 60 m class. In the late 1980s, the length of the tuna purse gear was 1,939 m and the design depth was 160 m, but currently, the length and the design depth are 2,515 m and 230 m, respectively. As a result of the simulation, the expansion of the fishing gear increased buoyance, sinking force, sinking depth, surrounded area, and purse wire continuously. Recently, the maximum tension of the currently used purse wire of tuna purse seiner is 23.5 tons and is close to 25.4 tons which is the maximum lift capacity of WS454 winch. The way to improve fishing gear should be proceeded to increase sinking speed rather than expand the size of fishing gear.

Studies on the setting a fishing restricted area of Jeju special self-governing province (제주특별자치도의 낚시 통제구역 설정에 관한 연구)

  • KOO, Myung-Sung;KIM, Suk-Jong
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.51 no.3
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    • pp.441-447
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    • 2015
  • As a series of research plan, this study is to provide basic data necessary for the development of fishing industry which will contribute in establishing sound fishing culture in Jeju island through systematic management of fishing, protection of fishery resources and establishment of safety measures for fishermen in accordance with 'Fishing Management and Support Act'. To attain the proposed objective, this study conducted literature review and surveys on restriction standards of harmful substances generated from fishing equipment and baits, examined the current status of fishing management in popular fishing sites of other cities, and then reviewed and analyzed the fishing management and fishing-restriction zones in Jeju island. The survey on the opinions on the restriction criteria of fishing methods, tools and period, including the acceptable standards for harmful substances showed that general fishermen preferred 'alleviating the measure (44.8%)' to 'aggravating the measure (23.0%)'. Meanwhile, maritime police showed dominant opinion toward 'aggravating the restriction (52.2%)' over 'alleviating the measure (4.3%)'. Furthermore, fishing-related enterprise is favored 'aggravating the restriction (32.6%)' over 'alleviating the measure (27.9%)'. In the survey on the tolerance of fishing baits including criterion for content of certain substance in different types of bait, it showed 57.5% of general fishermen preferred alleviating restriction criteria while 20.7% of them favored tougher restriction. Whereas, 33.3% of maritime police group insisted such fishing baits should be more restricted while 16.7% answered it should be alleviated. 35.9% of fishing-related enterprise was in favor of alleviation while 14.3% preferred aggravation. Upon investigation on the status of fishing management in other cities and towns, it turned out that most of them had safety and convenience facilities, installed warning and guide signs in fishing sites, and set no fishing zones. The review of fishing management and restricted area showed that 10 sites required access restriction and 2 of 10 sites were considered to be partially restricted for weather and season. 82 fishing sites were regarded as unnecessary to be restricted and installation of safety facility and guide signs is necessary for the safety of fishermen.

A Study on the Development of Type & Planning Criteria for the Senior citizen who lives alone in Home for the Elderly - A study on the model of co-housing for senior citizen who lives alone in the rural and fishing village (VI) - (독거노인용 경로홈의 유형개발과 계획기준의 연구 - 농어촌 독거노인을 위한 친환경 공동주거의 모형개발 연구(6) -)

  • Cho, Won-Seok;Kim, Heung-Gee
    • Journal of the Korean Institute of Rural Architecture
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    • v.14 no.4
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    • pp.27-35
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    • 2012
  • The purpose of this study was to establish planning criteria and development of type for the senior citizen who lives alone in home for the elderly at rural and fishing villages. In order to take most suitable co-housing, this analysis is progressed various building types based on aging in place and aging in health; self care, nono care, service care and community care. This paper is to suggest collective housing with 10 types in large scale and extracted 19 types in detail scale. The basis of classification are location condition; aging in place, building condition, health care condition; aging in health and possession & operation condition. In viewpoint of dwelling welfare 'Home for the Elderly' is to concerned with systematic methodology and architectural typology for senior citizen who lives alone in the rural and fishing village.

Analysis of estimating fisheries resource catch amount in recreation fishing vessel (낚시어선 어획량 추정에 관한 연구)

  • LEE, Kwang-Nam;LEE, Kyounghoon;HUH, Ji-yeon;LEE, Dong-hyuk
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.58 no.1
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    • pp.75-84
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    • 2022
  • Since South Korea did not adopt the recreation fishing using right (coupon) system, there were no recreation fishing statistics. This study selected 480 fishing vessels (10.4%) of a total of 4,611 fishing vessels (as of December 2019) as a survey sample using stratified sampling. Unlike other research institutes that conducted surveys related to the amount of tide on a one-time, this survey was conducted for five months (from May to October 2020, except the month of August). The captain investigated about types of fish, size, weight, etc. to anglers. A difference from previous studies was that about 7.0 million angler population (fishing more than three times a week) had 19.4 kg of catch per person for a year while other studies showed about 25.5-52.0 kg, respectively. The total fisheries resource catch amount was analyzed to be about 95,000 tons in this study and 116,000-166,000 tons in other studies. So there was a difference of about 1.2 to 1.8 times. This study aims to lay the foundation for the development of the fishing industry by preparing accurate statistical data and securing reliable basic statistics related to the fishing industry. Also, it could be usefully used as basic policy data such as introduction of a fishing using right (coupon) system.

Octopus fisheries in the coastal waters of Gangneung - I - Pot fishery - (강릉시 연안 문어어업에 관한 연구- I - 통발어업 -)

  • An, Young-Il;Park, Jin-Young
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.41 no.4
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    • pp.271-278
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    • 2005
  • In order to study the catch situation of the octopus pot fishery in the coastal waters of Gangneung, catch quantities and weight per month and depth, the soaking time & loss of fishing gear were studied based on 62 fishing times (1 set consisted of 150 pots which is equivalent to 1 fishing time) over a period of 10 months from February to December 2003 using commercial fishing vessels and training ships. The monthly CPUE was generally high in the months of june - September, and during this period July showed the highest quantity (134g/pot, 19.21kg/haul). In consideration of the fact that octopus below the weight of 2kg is protected in foreign countries, the majority of the catch was small with 76% (486 octopuses) below 1kg. The octopus catch quantity was high in depth of more than 40m, and the average catch number per set of pots in depths of over 50m was the highest with 13 octopuses. CPUE(g/pot) was the highest at a depth of over 60m recording 101. In terms of catch quantity per soaking time (4-18 days) the highest was on the 7th day, and 13-18 days also recorded high catches, and this suggests the possibility of ghost - fishing with the loss of fishing gear. Loss of fishing gear was the highest in terms of loss frequency and amount at depths of 20-30m. Consequently, it seems that octopus pot fishing at depths of more than 30m would relieve friction with other types of fishing and increase fishing efficiency.

Classifying Types of Local Governments for Urban Policies in the Metropolitan Era (대도시권 시대의 도시정책을 위한 기초지자체 유형 구분)

  • Kim, Geunyoung
    • Journal of Urban Science
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    • v.9 no.2
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    • pp.21-30
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    • 2020
  • The purpose of this study is to present a plan to distinguish 229 local governments nationwide by taking into account various characteristics such as population, employment, housing, and industry of the region for customized urban policies in the era of metropolitan areas. The National Statistical Portal (KOSIS) collected and standardized data related to population, housing, industry, and finance by region from 2000 to 2015 for the classification of regional types necessary for customized urban policies, and this was used to classify them into regional types that considered population, employment, housing and industry. The summary of the analysis results is as follows. First, as a result of the regional type classification, 10 key employment sites (4.4%), 5 employment centers (2.2%), 38 residential centers (16.6%), 20 growth areas (8.7%), 26 industrial cities (11.4%), 35 low-fertile farming and fishing villages (15.3%) and 95 stagnant areas (41.5%). Second, the Seoul metropolitan area is the most diverse type of metropolitan area in the country, with most of its core employment sites inside Seoul, residential centers inside and outside Seoul, and growth areas in the southeastern part of the country (Busan, Ulsan, and Gyeongsangnam-do) are mixed with industrial and growth areas centered around Busan, Ulsan and surrounding areas, while the rest of the local governments are found to be low-fertile farming villages or stagnant areas. Daegu (Daegu, Gyeongbuk) is an industrial city in Daegu, and the rest of the local governments are either low-density farming and fishing villages or stagnant areas. The Honam region (Gwangju and Jeolla) was found to be a low-mill farming and fishing village or stagnant area except for Gwangju, while the Chungcheong region (Daejeon, Sejong, and Chungcheong) was seen as a growth area with areas adjacent to Daejeon, Sejong, and the Seoul metropolitan area, and some industrial cities were included. Finally, the Gangwon area was mostly classified as low-density farming and fishing villages and stagnant areas.

Estimating Populations, Yields, and Expenditures of Recreational Fishing in Korea (유어낚시 인구, 조획량, 지출 추정 연구)

  • Lee, Hee-Chan
    • The Journal of Fisheries Business Administration
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    • v.41 no.2
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    • pp.45-60
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    • 2010
  • The objective of this article was to estimate the market size of recreational fishing in Korea. Data were collected through sample surveys of 3,081 households nationwide in 2008. The number of anglers was directly estimated by applying weights expressed as the ratio of population to the sample. Yields and expenditures were estimated based on modules developed. On the basis of the results, a total of 6,524 thousand anglers caught an estimated 643,343 thousand fish, divided 65.2% on inland lake and 34.8% on saltwater. An angler caught about 98 fish on average in 2008. A typical angler went fishing 9.6 times, divided 8.4 times on inland lake and 5.5 times on sea. An annual expenditure of 5,233.6 billion won was estimated. The total was divided 2,851.4 billion won on inland lake(54.5%) and 2,382.2billion won on saltwater(45.5%). An average angler spent 802 thousand won a year. This study also estimated volumes by various types of fish.

A Study on Success Factors of Coastal Fisheries in Busan Region (부산시 연안 어선어업 경영체의 성공요인에 관한 연구)

  • KWON, Hyeok-Seung;SONG, Jung-Hun
    • The Journal of Fisheries Business Administration
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    • v.46 no.2
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    • pp.1-11
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    • 2015
  • Due to the environmental changes such as decreasing and aging fishing population and increasing imported marine products, improvement of fishing business competitiveness has become one of important issues. This study aimed to analyze the coastal fishing business units in Busan region and compare their business performances in order to find out success factors. The logistic regression analysis between 4 determination factors of competitiveness and business performances showed that the ship tonnage in the factor conditions, catch of species of fishing types'kg per price in the demand conditions, cooperative sales ratio in the related & supporting industries, and net per cost in the firm strategy, and structure & rivalry had the positive(+) impacts on business performances.

Development of Hull form Decision Program Considering Resistance and Stability of Small Fishing Vessels Under 24m (24m미만 소형어선의 저항.복원성을 고려한 선형결정 프로그램 개발)

  • 박제웅;허진호
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.6 no.2
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    • pp.33-46
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    • 2000
  • As far as fishing vessels are concerned, there are two aspects to be noted: One is the stability which is the greatest concern for the safety of fishing vessels, as the corresponding number of casualty is overwhelming compared with those of other types of vessels. To flake it worse, the feature of casualty is rather catastrophic, accompanying major fatalities. The other aspect is related to the needs of improvement of resistance performance along with the hull form development. In particular, small fishing vessels, such as under 24m in length, which is dominant size in the type, need further scrutiny to enhance the qualities mentioned above, as relevant standards/criteria on the issues are not shown clearly and, therefore, implemented for the design or assessment.

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A Study on Decision-Making between Husbands and Wives (I) - focusing on the Farming of Fishing Villages in Jeju Island - (부부간의 의사결정에 관한 연구 (I) - 제주도 농.어촌 가정을 중심으로 -)

  • 김혜숙
    • Journal of the Korean Home Economics Association
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    • v.20 no.3
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    • pp.65-83
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    • 1982
  • In this paper, the writer makes attempts to investigate what kinds of decision-making patterns are adopted, when husbands and wives make up their minds about home managerial problems of farming or fishing villages in Jeju Island. The data in this study were drawn through the questionaire collected from 299 families of farming of fishing villages in Jeju Island. Percentage and F-test applied to statistical analysis. The results are found as follows: 1. Although husbands and wives do joint decision making with each other, some decision making spheres are classified according to problems. 2. Family types are mainly made up of Autonomic family and syncratic family, but there are comparatively by far syncratic family in Jeju Island than any other area. 3. The background variables to be influenced upon are their ages, educational level, duration of marriage, the number of whole family, the number of daughters, the number of children, managing power of their living expenses, satisfaction of their conjugal lives, daily communication status, quarrels between them, locations of farming or fishing villages, etc.

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