• Title/Summary/Keyword: cultivating fishery

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An Economic Analysis on Fishing in the Cultivating Fishery by Embankment (축제식 양식어장 유어낚시터 운영 경제성 분석)

  • Lee, Sang-Go;Shin, Yong-Min
    • Journal of Fisheries and Marine Sciences Education
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    • v.20 no.3
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    • pp.429-441
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    • 2008
  • The purpose of this study aims at analyzing the profit from manage a fishing place in the cultivating fishery by embankment. With the spread of the living pattern laying stress on the quality of life and the introduction of a 5-day workweek system, demand for tourism and leisure are increasing steadily and available time for them is getting longer. However, those newly-increasing demands for tourism and leisure will have a tendency of focusing on adventurous and experiential activities. From the point of view, it is needed to develop something new that can meet those kinds of demands for an experiential tourism and activity, particularly based on the cultivating fishery by embark a bay. Marine recreational fishing is one of the most popular outdoor leisures and the number of people who are participating is sharply increasing more and more because of the increasement of their income and demand for marine leisure. In this regard, this paper is focused on the economic analysis a fishing place in the cultivating fishery by embankment. According to the analysis result, the cultivating fishery by embankment is a profitable business operating fishing place in their place.

A Study on aquatic products and fishery administration in china (중국의 수산물 생산과 어정관리에 관한 연구)

  • 고재모
    • The Journal of Fisheries Business Administration
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    • v.30 no.1
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    • pp.77-96
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    • 1999
  • Since the onset of its economic reform and the open door policy in the late 1970s, China's overall economic growth rate has been continuing about 10% per year. The marine sector is not allowed exception, aquatic products increased sharply from 4.66 million MT in 1978 to 36.02 million MT in 1997, and then China is remained the largest producing country in the world aquatic market and her role would be expanded. Korea having a common boundaries to China is subjected unescapably both in domestic and export markets by the influence of the remarkable growth of China's aquatic products. If China were admitted entrance of WTO(World Trade Organization)in the near future, her influence is getting more serious. Well, we are necessary to understand the characteristics of China's aquatic products and to review fishery policies implemented by the China government. This paper is organized into two major parts, the one includes the structural changes of aquatic products, fishing and cultivating in the coast, latent and estimated production in China, and the other includes the main contents of fishery policies and measures of government administration. A characteristic of China's aquatic products is that cultivated production, especially, shellfish outputs continues to rapid increase. The major means of administration are an execution of fishing license system and setting up no-fishing zone and closed season for fishery. China is no longer a marginal player in international economic and world aquatic market. So, we will not only understand China's aquatic conditions and problems, but will also see the usefulness in continuing the cooperative relationship for a long time to come.

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Design of Surveillance System for Fishery Safety and Security Using F-AIS (F-AIS를 이용한 어장보호 시스템 설계)

  • Yim Jeong-Bin;Nam Taek-Keun;Jeong Jung-Sik;Park Seong-Hyen;Yang Weon-Jae
    • Proceedings of KOSOMES biannual meeting
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    • 2005.11a
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    • pp.71-74
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    • 2005
  • This paper describes Fishery Safety and Security System using F-AIS based on the concepts of RFID(Radio Frequency Identification). This system is to track, protect and arrest the thief who invaded in an fishing ground. The system composed with various functional modules to implement selectively available system providing low cost to high cost and simple function to high function according to user's requirement in a practical fishing fields. Sea trial tests are carried out at Mokpo, Busan and Incheon and, it is found that the system can guard the wide area of cultivating farm field.

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Development of Real-time Oceanographic Information System for Long Line Hanging Aquaculture Farm and Temperature Variation in the Coastal Area of the East Sea (수하식 양식장용 실시간 해양환경 관측시스템 개발 및 동해 연안의 수온변동 특성)

  • Yang, Joon-Yong;Kim, Lim-Hak;Lee, Joon-Soo;Hwang, Jae-Dong;Suh, Young-Sang;Kim, Dae-Chul
    • Journal of Environmental Science International
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    • v.19 no.11
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    • pp.1397-1405
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    • 2010
  • Mass mortalities of cultivated organisms have occurred frequently in Korean coastal waters causing enormous losses to cultivating industry. The preventive measures require continuous observation of farm environment and real-time provision of data. However, line hanging aquaculture farm are generally located far from monitoring buoys and has limitations on installation of heavy equipments. Substituting battery pack for solar panels and miniaturizing size of buoy, newly developed system can be attached to long line hanging aquaculture farm. This system could deliver measured data to users in real-time and contribute to damage mitigation and prevention from mass mortalities as well as finding their causes. The system was installed off Gijang and Yeongdeck in Korea, measuring and transmitting seawater temperature at the sea surface every 30 minutes. Short term variation of seawater temperature, less than one day, in Gijang from June to July 2009 corresponded tidal period of about 12 hours and long term variation seemed to be caused by cold water southeast coast of Korea, particularly northeast of Gijang. Seawater temperature differences between Gijang station and the other station that is about 500 m away from Gijang station were $1^{\circ}C$ on average. This fact indicates that it is need to be pay attention to use substitute data even if it is close to the station. Daily range of seawater temperature, one of crucial information to aquaculture, can be obtained from this system because temperature were measured every 30 minutes. Averages of daily range of temperature off Gijang and Yeongdeok during each observation periods were about $2.9^{\circ}C$ and $4.7^{\circ}C$ respectively. Dominant period of seawater temperature variation off Yeongdeok was one day with the lowest peak at 5 a.m. and the highest one at 5 p.m. generally, resulting from solar radiation.

A study on the development of multi-purpose fisheries training ship and result of seakeeping model test (다목적 어업실습선 개발과 내항성능 시험 결과)

  • RYU, Kyung-Jin;PARK, Tae-Sun;KIM, Chang-Woo;PARK, Tae-Geun
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.55 no.1
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    • pp.74-81
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    • 2019
  • According to the recent presentation by the Korean Maritime Safety Tribunal, about 70% of marine accident occurs from fishing vessel, and 90% of cause of entire marine accidents attributes to human error. As fishing vessels require basic operations, fishing operations, other additional operations and techniques such as fish handling, cultivating excellent marine officer to prevent marine accident and develop industry is very important. A fisheries training ship is still very difficult to satisfy the demand for diversity of fishery training and sense of realism of the industry. As the result of employment expectation by category of business survey targeting 266 marine industry high school graduates who hope to board fishing vessels for the last four years, tuna purse seine was the highest with 132 cadets (49.6%), followed by offshore large purse seine (65 cadets, 22.4%), and tuna long line (35 cadets, 13.2%). The Korea Institute of Maritime and Fisheries Technology (KIMFT) has replaced old jigging and fish pot fishery training ships and proceeded developing and building multi-purpose fisheries training ships considering the demand of industry and the promotion of employment; however, the basic fishing method was set for a tuna purse seine. As a result of seakeeping model test, it can conduct the satisfiable operation at sea state 5, and survive at sea state 8.

Characteristics and suitability of various cereal grains in spawn production of button mushroom

  • Lee, Byung-Joo;Lee, Mi-Ae;Kim, Yong-Gyun;Lee, Kwang-Won;Lee, Byung-Eui;Seo, Geon-Sik
    • Journal of Mushroom
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    • v.12 no.4
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    • pp.237-243
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    • 2014
  • Spawn is the vegetative growth of the mycelium and serves as the inoculum or seed for cultivating mushrooms. Various cereal grains, such as wheat, millet, barley, sorghum, brown rice, rye, and oat were assessed to compare their characteristics and suitability for spawn production of button mushroom (Agaricus bisporus). The mycelial growth rates, density, and the number of completely colonized grains were measured from the twentieth day of inoculation. Wheat grains showed fastest mycelial growth with 8.4 cm followed by rye, oat, barley with 8.2, 7.5 and 7.3 cm, respectively. In the mycelial density, foxtail millet, barley, and sorghum were best compared with that of wheat grains. Especially, the number of grains which were completely colonized by mycelia were greatest in foxtail millet with 5,123 grains followed by proso millet, and wheat with 3,052 and 914, respectively. Based on the results obtained, barley, foxtail millet, and sorghum grains would be appropriate substituting for wheat grain in spawn production of button mushroom.

Ecological Studies On The Growth Of Transplanted Oyster, Crassostrea gigas (Thunberg) From Southern Coast Of Korea (남해산 참굴 Crassostrea gigas(Thunberg)의 이식성장에 관한 생태학적 연구)

  • Kim, Yong Ho
    • 한국해양학회지
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    • v.15 no.1
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    • pp.8-16
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    • 1980
  • The seed of Japaness oyster, Crassostrea gigas(Thunberg), cultivated along the southerncoast of Korea have been transplanted and cultivated in both the Seonyu island and the Eocheong island of the western coast of Korea. The present study was carried out to investigate the growth of transplanted oysters, environmental factors influencing their fatness, and differences of two areas between the Seonyu island and the Eocheong island during the period from April to November, 1978. The results obtained were as follows: 1. Maximum height of the shell was 69.2mm (58.4mm on the average) in the island of Seonyu and 64.8mm(53.2mm) in the island of Eocheong, respectively. 2. The fatness of the oysters measured in the island of Seonyu (5.2g/month) was greater than in the island of Eocheong (2.5g/month) 3. The shell height was increased with high temperature while, the shell fatness with low temperature. 4. The growth rate of the transplanted seed oysters was twice as much as that of native ones in the western coast of Korea. 5. Environmental conditions of Seonyu island were more favorable in cultivating oysters than those of the Eocheong island.

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Implementation of Unmanned Aquaculture Security System (무인 어장 도적 감시 시스템 구현에 관한 연구)

  • Yim, Jeong-Bin;Nam, Taek-Keun
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.13 no.1 s.28
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    • pp.61-67
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    • 2007
  • This paper describes the implementation procedures and results of Fishery Safety and Security System to secure an aquaculture area from a thief. The system designed with various functional modules to implement selectively available system providing low cost to high cost and simple function to high function according to user's requirement in a practical fishing fields. In the abalone farm field located in Jin island, Jeonranam province and having condensed aquaculture facilities with 50 cages (10 row by 5 column) within 0.5 miles from coast, practical field tests are carried out. As results from that tests, it is found that the system can guard not only the whole area of cultivating farm field but also each cages with detail.

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Fisheries Education and Research System in P.R.China (중국(中國)의 수산업분야(水産業分野) 교육(敎育) 및 연구체제(硏究體制))

  • Kang, Il-Kweon
    • Journal of Fisheries and Marine Sciences Education
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    • v.5 no.2
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    • pp.80-89
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    • 1993
  • Notwithstanding Korea and P. R.China are located in the neighborhood each other geographically, the break of diplomatic relations of them continued a long term, and the difference of ideology and social structure of two countries was acting as a barrier to understand each other in many fields. Two countries established formal diplomatic relation in 1992, and then the interchange and mutual cooperation between both countries are being performed rapidly, but the field of fisheries education and research system is continuing in the early stage yet. It can be easily expected that the interchange and mutual cooperation in the field of fisheries through the ocean contribute not only to the international friendship, but to the rational management of fisheries resources. In accordence with the necessity mentioned above, the author considered the general situation of fisheries education and research system in P. R. China. P. R. China runs two kinds of fisheries education system which are regular and irregular system. The regular education system is the principal means of cultivating fisheries scientists and technicians. And there are three grade levels in regular education : the tasks of which are undertaken by the fisheries universities, fisheries colleges and fisheries high schools. Adult education system in fisheries are of the following types : fishery cadet training courses, evening schools, correspondence courses and broadcasting or TV programs. The fisheries research in P. R. China is undertaken by the research institutes under the Bureau of Aquatic Products, and the basic research of oceanography is undertaken by the oceanographic institutes under the Chinese Academy of Science.

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Implementation of Aquaculture Security System (어장 도적방지 시스템 구현에 관한 연구)

  • Yim, Jeong-Bin;Nam, Taek-Keun;Ahn, Yeong-Seop;Jung, Jung-Sik;Park, Seong-Hyeon;Kim, Chol-Seung;Yang, Yeon-Jae;Jeong, Dae-Deug;Jeong, Jae-Yong;Kim, Woo-Suk
    • Proceedings of KOSOMES biannual meeting
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    • 2006.11a
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    • pp.105-111
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    • 2006
  • This paper describes Fishery Safety and Security System which is to secure an aquaculture area. The system composed with various functional modules to implement selectively available system providing low cost to high cost and simple function to high function according to user's requirement in a practical fishing fields. Sea trial tests are carried out at Abalone farm, located in Jin island, Jeonranam province and it is found that the system can guard the wide area of cultivating farm field.

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