• 융합경영연구
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• 제3권3호
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• pp.7-23
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• 2015

Women are more disadvantaged than men in many fronts and this confines them to informal sector livelihood activities. Any attempt to improve women's economic status will require information on the organization, cost and returns to investment in the livelihood activities in which they predominate. This is the issue for this study which compared yield performance in artisanal fishing and fresh fish marketing. Primary data collected through multi-stage sampling method were analyzed using inferential statistics, budgeting and regression models. Empirical findings revealed that about 75.0% of fisher folks either had no formal education or acquired only primary school education while 50.0% of marketers had secondary school education. The budgeting model revealed fisher-folks' and marketers' annual net profit to be N2,882,626.00 and N640,227.00, respectively. Profit from fishing was significantly higher than that of fish marketing. At 53.2% for fishing and 40.3% for marketing, returns to investment was better in fishing. Regression model results showed the significant factors influencing returns to each livelihood strategy to include fishing ground, distance covered and years of experience. The major constraint faced by operators of both livelihoods groups was insufficient credit. Despite this, the livelihood strategies were shown to be profitable ventures which contributed to households' consumption expenditure. Organizing women informal sector operators into groups to enhance access to government support and formal credit are recommended for improving livelihood strategy performance.

• 수산해양기술연구
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• 제58권2호
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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).

• 공연문화연구
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• 제39호
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• pp.279-323
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• 2019

『북녘 땅 우리소리』에 수록된 북한 어로요의 음악적 특징에 대해 고찰한 결과는 다음과 같다. 북한 어로요 중 <노젓는소리>, <그물당기는소리>, <고기푸는소리>는 조기잡이와 명태잡이에 모두 보이며, <닻내리는소리>와 <만선풍장소리>는 조기잡이에서, <닻올리는소리>와 <고기벗기는소리>, <만선노젓는소리>, <명태거는소리>는 명태잡이에서 보인다. 그 외 <돛다는소리>, <조개잡는소리> 등이 보인다. 리듬요소 중 빠르기에서 <돛다는소리>는 보통빠르기이며, 멸치나 청어잡이의 <고기푸는소리>는 상당히 느리다. <노젓는소리>(조기)는 빠르기가 다양하며, 모두 보통빠르기 이상이고, 대체로 뒤로 갈수록 빨라진다. 그 외의 곡들은 모두 빠른 편이다. 박자구조는 4/♩.가 가장 많고, 간혹 2, 3, 5박자도 보이며, 각각 4박으로 구성된 받는소리와 메기는소리가 맞물려서 2박이 겹치는 6박 주기의 리듬을 쓰거나 불규칙박자를 쓰는 경우도 있다. 음조직은 메나리조가 가장 많고, 그 외 수심가조, 창부타령조, 난봉가조, 오돌또기조 등이 있으며, 음고가 뚜렷치 않은 구령조도 있다. 메나리조의 곡에서 창부타령조의 전조나 변이가 관찰되었다. 갈래별로 특정 음조직을 선호하는 경향이 있다. 형식에서는 메기고받는형식이 압도적이나, 선후창보다 독창으로 부른 경우가 더 많다. 선후창 다수에서 메기는소리와 받는소리가 부분적으로 겹치는 양상을 보인다. 통절형식은 교창이나 독창으로 불렀으며, 독창으로 부른 경우도 작업의 특성을 고려하면 원래는 교창이나 제창으로 불렀을 것으로 추측된다. 함북 선봉군과 강원도 양양군의 <고기푸는소리>, 평남 증산군의 <만선풍장소리-봉죽타령>과 충남 태안군의 <만선풍장소리-배치기소리>, 남포시와 경기도 강화군의 <노젓는소리>는 닮은꼴의 어로요이다. 인접 지역의 경우 갈래가 달라도 선율을 공유하는 경우가 있으며, 특정 갈래에서는 상당히 먼 거리까지 선율을 공유한다. 멸치 청어 양미리잡이에서 <고기푸는소리>가 동해안 일대에서 널리 공유되고 있다는 점이 최초로 확인되었다.

• 수산해양교육연구
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• 제25권2호
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• pp.410-418
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• 2013

Based on the survey on abalone aquaculture management status in Nohwa-eup, Bogil-myeon, and Wando-eup in Wando region, this study compared the analyzed business performance generated from production by region. The results show that the abalone production quantity has been stabilized currently after rapid growth during the past 10 years. In the future, it will be the time for more positively spontaneous efforts by people in aquaculture business to restore fishing ground, in which they have actively and continuously worked, by means of clean-up of fishing ground, movement of fishing ground, or time-off period rather than just to focus on the short-term increase of production in all of three regions.

• 한국기계기술학회지
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• 제13권4호
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• pp.63-69
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• 2011

Hull forms for catamaran type small fishing boat powered by electric motor are newly developed by experimental approaches. Model tests for two hull forms having different length are made at circulating water channel. Resistance performance and wave patterns are compared to carry out an analysis of the effect of extension of main body. The results show that the extension of main body can give better resistance performance above a certain velocity.

• 한국해양공학회지
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• 제27권6호
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• pp.1-6
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• 2013

A 25ft class fishing leisure boat is developed, and the resistance performances are investigated by a model test in a high-speed circulating water channel. The design speed of the developed ship is 25 knots using a 150 ps outboard engine. A catamanan type hull form using a planing section is adopted considering the Froude number and large deck area. The effect of a center body attached on the bottom of the cross deck is studied under various conditions. Wave patterns are observed to make clear the relationship between the resistance performance and the wave characteristics. The results show that the shape of the center body and the position of the chine line can have a strong effect on the resistance performance in a certain velocity range.

• 수산해양기술연구
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• 제37권1호
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• pp.52-56
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• 2001

별도의 엔진 구동형 소형 패키지 해수냉각시스템을 개발하기 위하여 압축기 회전수와 냉각수 유량 및 온도, 냉수 유량을 파라미터로 장치의 운전 특성을 파악한 결과 다음과 같은 결론을 얻었다. (1) 압축기 회전수와 증발기의 냉수 및 응축기의 냉각수 유량이 증가할수록 장치의 냉동능력은 증가하였으며, 압축기 회전수 및 냉각수 온도가 증가할수록 구동엔진의 연료소비량도 증가하였다. (2) 압축기 회전수와 냉각수 및 냉수의 유량이 증가할수록 냉각시스템의 성능계수는 증가하였으며, 냉각수 온도 및 압축기 회전수가 감소함에 따라서는 감소하였다. (3) 별도 엔진 구동용 소형 해수냉각장치 개발 및 운전조건 변화에 따른 시스템의 특성과 운전조건변화의 상관 관계를 파악할 수 있었으며, 시스템의 상용화 설계를 위한 기초자료를 얻을 수 있었다.

• 산업경영시스템학회지
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• 제46권3호
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• pp.69-77
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• 2023

Recently, carbon composites have been applied to various fields. However, carbon composites have not been applied to the fishing vessel field due to its structure standards centered on glass composites. In this study, a structural strength evaluation study was conducted for the application of carbon composites in the fishing vessel field. Hull minimum thickness verification test and hull joint verification test were conducted. Compared to glass composites, the verification was based on equivalent or better performance. The results show that carbon composites can reduce the weight by 20% compared to glass composites. For hull joints, it was necessary to increase the thickness of the joint seam by the thickness of the hull to apply carbon composite. Through this study, a standard for the application of carbon composites to fishing vessel can be established.

• 수산경영론집
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• 제29권2호
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• pp.163-175
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• 1998

The decrease of the fishery's business performance is due to the changes of environment-the increase of cost, the reduction of resources, the liberalization of import, the effectuation of the admiralty law Though the government has prepared the alternative policy to strengthen the competitive power of the fishery, fishermen should draw up a plan to improve the business performance. The problems of the small powered purse seine resulting from the small scale of the fishing boat is following. First, its catching activity in the sea is riskful. Second, the space to eat and to work is not enough. Third, the space to put the fish is not enough, it is hard to maintain the freshness of the fish. Therefore it is necessary to solve these problems for the scale of the fishing boat to have to be enlarged. The enlargement of the fishing boat to be required much expenditure of fund is the important investment decision to fishermen. The alternatives evaluation between the existing boat(defender) and the new boat enlarged with the new equipment(challenger) is necessary process to reduce the uncertainty of investment. The profitability of the challenger is better than that of defender due to the reduction of cost and the increase of revenue. Because the net present value of incremental cash flow is positive, it is rational for fishermen to accept the challenger.

• 한국해양공학회지
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• 제25권6호
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• pp.17-22
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• 2011

This study conducted wide-tank experiments and numerical calculations for a vessel in various positions such as upright and inclined by 2 and 4 degrees, with the goal of investigating the motion amplitude response of a small damaged fishing boat subject to a beam sea. Numerical calculations were conducted based on the three-dimensional source distribution method. The good agreement of the numerical calculation and experimental results confirmed that the present calculation method can be efficiently used for the initial design of a small fishing boat. In addition, while the chine-line type has been frequently adopted to improve a ship's resistance performance in the design of a small fishing boat, it is considered that the possibility of a deterioration in rolling performance should be thoroughly considered.