• 한국수산과학회지
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• 제36권6호
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• pp.669-675
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• 2003

To increase fishery resources in coastal waters, juvenile fish and bivalves are artificially released every year in Korea. This study provides a methodology to estimate an optimal release quantity based on the carrying capacity of the receiving basins. Carrying capacity was defined by E.p. Odum's theory of ecosystem development as the upper limit of biomass, where total system respiration equals total primary production. The Ecopath trophic ecological model was used to determine carrying capacity in the surfzone ecosystem of Bangjukpo on the southern coast of Korea. Using a top-down control method, various biomasses of fish groups were given to the simulation, with primary production constant and no catch. The results showed that biomass of selected fish groups increased by two orders of magnitude, yielding a five-fold increase in overall consumer biomass. The resultant values are 10 times higher than those estimated in open seas. This can be explained by higher primary production in the Bangjukpo surfzone ecosystem. This method can be used for strategic releases and ecosystem management, particularly when based on an ecological background.

• 한국해양바이오학회지
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• 제3권1호
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• pp.24-30
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• 2008

Fishing in Kenya, until the discovery of Nile perch as an export commodity in the early 1990s, has basically a subsistence occupation for the lake and coastal communities. The government also did not recognize the importance of fisheries as a contributor to the macro-economy and therefore, did not pay much attention in terms of resource allocation for the development of the sector. Most fishing in Kenya is artisanal, with a little industrial fishing by prawn trawlers. The deep sea (EEZ) fishery resources are currently exploited by DWFNs through a licensing system. Only a small quantity of catch from the EEZ is landed in Kenya, primarily tuna loins for processing for export. Currently capture fisheries, mainly from Lake Victoria, earn local fishers over Kenya shillings (K Sh) 7 billion, while exports earn the country K Sh 5 billion (US$ 50 million) in foreign exchange annually. The government has been putting in place an enabling environment to promote investment activities in order to achieve economic recovery as well as for the development and sustainable use of fisheries resources in the country within the specified period. The Department's major roles are to ensure sustainable exploitation of fisheries resources; to promote aquaculture development; to assure quality and safety of fish and fishery products; and to facilitate fish marketing in order to maximize the benefits that can be derived from fisheries. The contribution of fisheries to local incomes, subsistence and food nutrition is significant, as this occurs in areas with the highest incidences of poverty in the country.

• 한국수산과학회지
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• 제54권4호
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• pp.480-488
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• 2021

The term residence time is defined as the time taken for substances in a system to leave the system and is a useful concept to explain the physical environment characteristics of a coastal area. It is important to know the spatial characteristics of the residence time to understand the behavioral properties of pollutants generated in a marine system. In this study, the spatial distribution of average residence time was calculated for Gangjin Bay, Korea, using a hydrodynamic model including a particle tracking module. The results showed that the average residence time was about 10 days at the surface layer and about 20 days at the bottom layer. Spatially, this was the longest residence time in the southwestern sea. There was no significant difference in average residence time at the surface layer due to freshwater discharge, but spatial variation at the bottom layer was larger. The average residence time at the bottom layer decreased in the southwestern area due to freshwater discharge and increased in the northern area. This result suggests that the residence time of anthropogenic pollutants may have a large spatial difference depending on the freshwater discharge, and thus the time taken to influence cultured organisms may also vary.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2004년도 학술대회 논문집 정보 및 제어부문
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• pp.553-555
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• 2004

In this paper, high performance radio buoy system used for inshore and deep sea fishery is developed and experimented. Location of radio buoy can be accurately monitored and traced by the mother ship using GPS technology, and optimum access protocol is adopted to minimize the power consumption of radio buoy system. Developed system can cover over 80Km coastal range with 8 W transmitting power and -115 dBm receiver sensitivity and can ensure high security from burglary and loss using digital coding technology.

• Ocean and Polar Research
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• 제30권2호
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• pp.173-180
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• 2008

This study demonstrates that cooperative management can provide more benefits than noncooperative management for Korea and Japan fishery. We have studied one management strategy, namely, fishing under joint maximization of net benefits in coastal waters of two countries, using a cooperative game theory. The present net return under non-cooperation amounts to 420,255 million won. However, if two countries cooperate one with another, this figure can get to 2,636,565 million won. We consider this to be an important conclusion as close management relationships have developed between the two countries since the establishment of the EEZ in 1996. The results of the study can also help balance resource conservation and the appropriate catch quota in each country.

• 수산해양교육연구
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• 제9권1호
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• pp.57-70
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• 1997

The Government is managing "The Comprehensive Development Plan of Fishing Villages" which is a national program to ensure the effective use of the coast and reasonable management of fisheries resources. The Chuja-do was selected as an area for "The Comprehensive Development of Fishing Villages" because it has the characteristics of local independence and an advanced fishery using boats. The study covered the environment of the local fishing grounds, all aspects of the coast fishing and residents' thinking. The results of the study led to the following proposals : development of the coastal fishing grounds farmining industry, establishing the fishing grounds industry by dropping arcificial fish reefs, developing the tourist industry, improving the quality of fishery using boats, and establishing high quality fishing specialties.

• 수산경영론집
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• 제36권1호
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• pp.27-49
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• 2005

This paper represents a critical review of current the relationship between aquaculture and the environment, focusing on the development of marine aquaculture for conservation of resources and environment in Korea. Aquaculture has grown rapidly during the past few decades in Korea. This expansion was possibly because of the growing demand for aquatic products and the failure of the capture fishery to keep pace with the demand. Nevertheless, the aquaculture industry must counter criticisms about adverse environmental effects and lack of sustainability. The productivity of Korean aquaculture is decreasing by environmental pollution, is suffering difficulty because competitive power of the aquaculture industry is weak, external effects of aquiculture is giving negative effects to coastal fishery. Therefore, aquaculture must improve as environmentally sound aquaculture for fisheries sustainability, and intensive aquaculture of high density must convert by low input sustainable aquaculture. Finally, the aquaculture system of Korea has to change to aquaculture for conservation of non - renewable resources and environment, it may contribute to development of Korean fisheries.

• 수산경영론집
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• 제49권4호
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• pp.83-97
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• 2018

The ocean is very important to mankind for its infinite value in resource storage and utilization. In shallow coastal waters, landfill as well as pollution damage occurs frequently for the promotion of important public and private projects that are the driving forces of national development. In this case, compensation paid for the loss or damage of fishing rights acquired by the fishing community shall be distributed to each individual of the fishing community in accordance with the appropriate balance. In reality, as fishing communities in different sectors coexist, the voting rights of the general meeting of fishing communities are ignored as a minority, and the demand for the rights is ignored by the majority. Many other industries receive fish compensation, even though they have not suffered much damage. As a result serious conflicts between the individuals of the fishing community have caused social problems. Therefore, similar cases are investigated and analyzed to provide a reasonable solution.

• 수산해양기술연구
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• 제50권4호
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• pp.567-582
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• 2014

Coastal fisheries in Korean waters have highly complexity with a variety of fishing gears, and scale of those fisheries is smaller than that of offshore fisheries. As a result, important spawning and nursery grounds for many species of fish has been destroyed. The pragmatic ecosystem-based approach was developed for the assessment of fisheries resources in Korean waters by Zhang et al. (2009; 2010). As for the species risk index (SRI), common squid caught by coastal gillnet in the Uljin region had the highest risk. As for the fisheries risk index (FRI), coastal gillnet in the Uljin coastal waters had the highest risk. For the common squid which had the highest SRI, resources management strategies must be established such as catch prohibition of length and period with TAC. For the coastal gillnet in the Uljin region which had the highest FRI, it is judged to need management plans for conserving biodiversity as reducing the catch of non-target species and discards. Also to protect existing habitat, illegal fishery should be prohibited, and fishing gears should be designed in the environmental-friendly way considering when fishing gears lost.

• 대한원격탐사학회지
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• 제36권2_2호
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• pp.231-236
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• 2020

최근 지구온난화로 인한 지구 규모 단위의 기후변화로 인한 연안의 환경변화에 대한 관심이 매우 높다. 또한 인간의 도시 개발로 인해 중요한 자연 및 사회적으로 유용한 연안지역 환경이 많이 훼손되고 있다. 이를 보호하기 위한 다양한 플랫폼과 탑재체를 이용한 현장 조사 및 원격탐사 연구가 연안 및 근해 지역에서 수행되고 있다. 본 특별호는 한국해양과학기술원 해양위성센터와 그 외 여러 대학에서 진행되고 있는 다양한 주제의 흥미로운 연안원격탐사 연구 결과를 소개한다. 본 특별호를 통해 한국해양과학기술원 해양위성센터에서 수행되고 있는 다양한 국내 연안원격탐사의 역할과 가치를 공유하고 연안 환경을 보호하기 위한 연안원격탐사 과제 발굴을 위한 계기가 되기를 기대한다.