• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2005.05a
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• pp.58-61
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• 2005

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2010.05a
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• pp.79-82
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• 2010

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2010.05a
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• pp.75-78
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• 2010

• Proceedings of the KAIS Fall Conference
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• 2009.12a
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• pp.1054-1058
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• 2009

본 논문은 호수 바닥이 오염된 서산 부남호의 수문을 개방했을 때 예상되는 오염물질의 확산에 관한 것이다. 몇 가지 각본을 가지고 컴퓨터 시늉을 한 결과 적절한 시간 간격을 주고 방류할 경우 천수만에 위치한 가두리 양식장에 지장이 없음을 알았다.

• Proceedings of the Korean Aquaculture Society Conference
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• 2004.05a
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• pp.187-188
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• 2004

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.8
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• pp.4093-4099
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• 2013

We studied sea water pollution by waste water of H condominium near the Bunam Lake in Seosan City. We simulated COD of discharged waste water, and other factors can be expected by proportional. The direction of sea flow is almost west, and there is no fish cultivation in the west area, so it is safe for fish cultivation. We assumed that there is no flow in the sea water, and simulated the divergence of water pollution. We concluded that, the fish cultivation will be free from danger of water pollution.

• Journal of Advanced Marine Engineering and Technology
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• v.32 no.6
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• pp.989-996
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• 2008

Recently, a few types of fish-cage in open sea are researched. This fish-cage has to operate monitoring system for keeping an optimum living condition for fish. The most efficient monitoring system is WVMS(Wireless Vision Monitoring System) for fish-cage in open sea. WVMS should be able to transmit video signal and communicate with each controller. So. it needs to be based on WLAN(Wireless LAN) which has characteristic of higher transfer-rate, In this paper, we propose a structure of WVMS using WLAN equipments for maritime environment and prove its effectiveness. We present the propagation loss model of WVMS's communication channel. measured by field test, and discuss its validity compared with the predictive value based on the Friss propagation model and Plane earth reflection model. We present the number of frames that is received from WLAN modem connecting with underwater-camera in field test spots. As a result, we confirmed that proposed WVMS is suitable for maritime environment and it is possible to be applied to fish-cage in open sea on 'seogwipo'.

• Proceedings of the Korean Society of Marine Engineers Conference
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• 2006.06a
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• pp.273-274
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• 2006

The sea is origin of all lift, and 90% of the all living organisms are in the sea. The biosynthesis is very different. Many organisms are kept on a lower or developed to another evolutionary level than on shore. Our society is increasing demand and need for marine food and this food has to product at onshore or offshore fish farming sites. Ocean fish farms have a special operation properties such as a good quality water, net cage, sheltered locations and feeding system. The farming site is controlled and monitored for fish welfare as ammonia($NH_3$), temperature, the speed of a running fluid. Specially, the fish farm is seriously influenced by ammonia. In this paper, $NH_3$ monitoring system for ocean fish farm is researched for the suitable fish farming sites, and test equipment is designed for achieving practical data. The equipment wit monitoring algorithm is expected to the useful system for ocean fish farm.

• Journal of Navigation and Port Research
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• v.34 no.10
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• pp.793-797
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• 2010

The depleting fishes resource and water pollution in coast has a decisive effect on the fish farm and fisheries. For solving these problems the fish farms are moving to the offshore. The fish farms in offshore have to design the strong mechanism as compared with cost's fish farm, and operate by the remote feeding system and monitoring system for safety and management.. This paper describes a remote feeding system for fish farms in offshore. The amount of feed is depending on temperature and fish weight. The fish farm temperature is changed extremely in offshore than on land side. This paper described that the feed amount is calculated automatically according to temperature and fish weight, and the remote feed system. The performance of remote feed system is tested with model.

• Journal of Marine Life Science
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• v.7 no.2
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• pp.154-162
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• 2022

In this study, data on the types and density of abalone attached organisms were provided in marine net cage of the southern coast. In addition, the effect of the removal of attached organisms was evaluated. In marine net cage, oysters, bryozoa, and barnacles were dominated among the attached organisms, and their average area ratio was about 57.5%. The growth rate and hepatopancreas condition were better in removal group of attached organisms than control group. Therefore, it is judged that the removal of attached organisms from abalone is necessary for the growth of individuals and improvement of value.