• Title/Summary/Keyword: 남해연안

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한국 남해안의 성층에 관한 연구

  • 구도형;김동선;조규대
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2000.10a
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    • pp.127-128
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    • 2000
  • 한국 남해는 대부분 100m 이천의 대륙붕으로 되어 있고, 쓰시마 난류수, 황해 난류수, 한국 남해안 연안수 및 황해 저층 냉수 등이 분포한다. 이러한 수괴들 사이에는 뚜렷한 전선이 형성되고 있다(조와 박, 1990). 해양에서 성층은 여름철에 태양복사로 인한 부력의 공급과 담수의 유입으로 형성된다.(중략)

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Systematic Study on Bryozoans from the South Sea in Korea II. Smittinidae (한국 남해산 태충류의 계통분류학적 연구 II. 입이끼벌레과)

  • 서지은
    • Animal Systematics, Evolution and Diversity
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    • v.9 no.1
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    • pp.35-50
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    • 1993
  • The Korean byozoans belonging to the Smittinidae, collected at 15 localities from the South Sea during the period from 1969 to 1991, were studied taxonomically. They are found to consist of eleven species, including one new species, Parasmfttfna contraria sp. nov. Of remaining 10 species, following four are known to be new to the Korean fauna: Smittfna malleolus, Parasmittfna elongata, Parasmittina crosslandf and Smfttofdea t-eticulata. Up to now, it is known that the Korean Smittinidae comprises 21 recorded species, including 19 species found from the South Sea. Eleven species are dealt with in the present report, with presentation of keys to the species of each genus, and photographic illustrations for the new species and tliose new to the Korean fauna.

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A Study on the Development for the Coastal Fishing Boat attached Protected-Tunnel for Propeller (세미워터제트형 연안어선 개발에 관한 연구)

  • 고재용;심상목;박충환;서성부;배동균
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2003.05a
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    • pp.16-20
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    • 2003
  • Recently, The fast change of fishing boat fishery surrounding environment is connected by request of fan shape development that meet in restructuring of existing fishing boat fishery and new community, economical surrounding. In southern sea district along the coast work and district along the coast fishing bats that sail to exposed propeller fishing net, rope etc.. cold real condition that accident is increasing every year. This study is thing which analyze main performance of minuteness water jet type district along the coast fishing boat through model examination to propeller protection tunnel sticking district along the coast fishing boat that correct existing stem shape for marine accident prevention of district along the coast fishing boat in viewpoint such as ideal and examines.

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In Relation to the Formation of Fishing Ground and the Fluctuation of Fishing Condition of Anchovy , Engranlis Japonica , Catched by Anchovy Drag Net (멸치 기선권현망의 어장형성과 어황변동에 관하여)

  • Park, Jong-Hwa;Lee, Ju-Hui
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.27 no.4
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    • pp.238-246
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    • 1991
  • In order to make clear the mechanism forming the fishing ground of anchovy drag net in connection with water temperature, catch and oceanographic data for the years of 1970-1988 in the Southern Sea of Korea were analyzed. The annual catch of anchovy drag net was about 21,000M/T in 1970 but it was increasing largely so far 100,000M/T in recent years. The fishing season of anchovy drag net is the whole year beside the prohibition season established in aims to protect the spawning group of anchovy, and then in the best season of the period from July to December, the fishing ground is made up in the coastal area joining Yosu, Namhaedo and Bangeojin. There were some evidences that the fishing condition was controlled by the oceanographic condition, especially water temperature, that is, when there was large difference in water temperature between the south area of the Eastern Sea and the west area of the southern Sea and the thermocline is formed strongly in the larger less than 20m, the fishing condition was good. On the other hand, there was a very effective correlation between the catch(X) of anchovy spawning group in Spring by other fishing gears, mainly drift net and that(Y) of the little size of anchovy by drag net in Autumn, expressed by the relative equation, Y=62,246+1.3X, r=0.63.

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A Regional Approach for Integrated Coastal Management with Scientific and Local Knowledge (연안통합관리의 과학적 및 지역적 접근)

  • Lee Chan-Won
    • Journal of the Korean Society for Marine Environment & Energy
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    • v.6 no.1
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    • pp.21-29
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    • 2003
  • Fishing, aquaculture, coastal tourism and port activities in southern coastal seas are important to the Korean economy Conventional strategies or quick-fixes may not be the best means of addressing coastal issues. Coastal issues in Korean coastal sea include harmful algal blooms (HAB), oxygen depletion, and sea grass disappearance. Regional coastal management plans have been developed during 2001~present after inauguration of Coastal Management Law in 1999. Activities such as eco-pioneer cities, pollution reduction, constitutional rearrangement, environmental regulation, monitoring indicators, and budgeting would be included in regional coastal management Planning. The successful implementation of integrated coastal management is largely dependent on the engagement of government and non-government organizations to increase the chorus of concern. The need to involve coastal area residents in restoring activities was addressed with the creation of NGOs' Association for Masan Bay Restoration (NAMR). Several restoration efforts by NAMR are currently underway in Masan Bay coastal zone with scientific and local knowledge. A new level of dialogue was achieved suggesting a sustainable picture of Masan Bay coastal area regarding to a new port construction.

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Using Remote Sensing in Forecasting Appearance of Oceanic Pollutions on the Coast (연안해역의 해양오염예측을 위한 원격탐측기법 적용 연구)

  • 정영동;김진기
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.19 no.2
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    • pp.125-135
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    • 2001
  • The research on Harmful Algal Blooms is generally in progress through field work, such as the naked eye and sampling. It was difficult to forecast exactly the course, from appearance of red tide to disappearance, with the established ways of investigation and analysis. Accordingly it is need to analyze environmental factors in time and space, the appearance of red tide and the path of its migration by more objective and scientific methods. In this study the remote sensing was used to diminish damage from the occurrence of red tide. Such as a temperature change of sea water and a change of tidal currents, the major cause for red tide. The probed data were utilized. The technique for forecast of red tide phenomenon on the south coast was researched by analyzing the cause of red tide, pollutant flowed from landand the possibility of application of the technique was showed.

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Recent changes in springtime discharge and nutrient fluxes to the vicinity of the Korean Peninsula (2012-2021) (봄철 한반도 연안으로 유입되는 하천 유량과 영양염류 유출량 변화량 (2012-2021))

  • Ye Na Kim;Jong Hun Kam
    • Proceedings of the Korea Water Resources Association Conference
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    • 2023.05a
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    • pp.145-145
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    • 2023
  • 육지의 영양염류는 강수를 통해 강을 따라 바다로 흐른다. 연안 수질과 생태계를 효과적으로 관리하기 위해 수계를 통해 연안으로 배출되는 육상 영양염류 유출의 변화를 연구하는 것이 중요하다. 그러나 제한적인 수량과 수질 동시 관측자료로 인해 한반도 연안으로 유입되는 영양염량 변화에 대한 연구는 매우 제한적이다. 따라서 본 연구에서는 한반도 내륙에서 주변 연안 지역으로 유출되는 영양염류의 유출량과 그 변화량을 추정 및 분석하고 유출량에 대한 수량과 수질 변화의 기여도를 정량적으로 조사하였다. 2012-2021년 봄철(3-5월)에 한반도 연안 주변의 75개의 하천 지점에서 측정된 수질 농도 및 유량 관측 데이터와 한반도 연안 375지점에서 측정된 해양 수질 농도 데이터를 사용하였다. 더불어 22개의 해안지역 하천 유량 관측소와 근접한 수질 관측자료를 통해, 총 질소(TN), 총 인(TP), 클로로필a의 봄철 영양염류 유출 총량을 추정하고 그 변화량을 평가하였다. 그리고 영양염류 유출 변화량을 모델 수식으로 분해하여 유출 총량 변화량에 대한 하천 유량과 영양염류 농도 변화의 상대적인 기여도를 분석하였다. 분석결과는 연간 봄철 TN, TP, 클로로필a 유출 총량의 변화율이 영양염류의 농도 (각각 19%, 48%, 5%)보다는 하천 유량 (각각 84%, 51%, 91%)에서 더 많은 영향을 받았음을 보여주었다. 한반도 연안을 서해, 남해, 동해로 나누어 영양염류 유출 총량을 분석한 결과, 한반도 전체 유출량에서 서해의 가장 큰 기여도를 확인하였다. 또한 한반도 내륙에서 유출된 영양염류 총량이 연안의 수질에 끼치는 영향을 조사하고자 내륙 하천과 연안의 수질 간의 상관관계를 조사하여 간접적으로 파악하였다. 본 연구는 분석적인 접근을 통해 하천과 연안 수질 환경에서 수문학적인 연결고리의 중요성을 강조하고, 영양염류 유출 변화가 해안에 서식하는 생태계와 양식산업 생산성에 미치는 잠재적인 영향을 강조하였다.

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해상크레인 운송선단의 안전 조종법에 관한 고찰

  • Choe, Hyeon-Cheol;Kim, Se-Won
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2010.10a
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    • pp.38-39
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    • 2010
  • 최근들어 항만건설 및 선박블록 운송의 증가로 대형 부선을 예인하는 예부선과 침몰 선박 인양 및 해상교량공사 등을 위한 해상크레인 운송선단의 통항이 매년 증가 추세에 있다. 우리나라에서 이들 선박의 주 항로는 남해와 서해 연안으로, 이 지역은 도서가 산재해 있고 협수로가 많은 지형적 특성과 연안으로 근접하여 항해 시 강한 조류의 영향을 받으며, 또한 어망과 조업중인 어선들과 많이 조우하게 된다. 특히, 돌발적인 해양 기상적 특징을 포함하고 있다. 이러한 영향에 따라서 이 해역을 통항하는 예부선 및 해상크레인 선단의 조종성능이 크게 저하되어 해양사고의 위험성이 고조되고 있다. 이에 따라서, 이 연구에서는 해상크레인의 연안해역 예항시 안전하게 항해할 수 있는 적절한 조종 방법을 고찰하여 안전운항에 기여하고자 한다.

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Distribution and Mortality of Eggs and Larvae of Anchovy, Engraulis japonica, in the Southern Coastal Waters of Korea (한국(韓國) 남해(南海) 연안(沿岸)의 멸치 난(卵) 자어(仔魚) 분포(分布)와 사망율(死亡率)의 변동(變動))

  • Kim, Jin-Yeong;Kim, Joo-Il
    • Korean Journal of Ichthyology
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    • v.5 no.2
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    • pp.217-225
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    • 1993
  • A study on the distribution and mortality of eggs and larvae of anchovy. Engraulis japonica, was carried out on the basis of data collected from ichthyoplankton survey in the southern coastal waters of Korea from June to August in 1990. Egg and larval distribution areas were shifted from the adjacent waters of Namhae Is, to the eastern waters of Goeje Is, while eggs and larvae were developed in June. However, high densities of eggs and larvae of anchovy and were found near Goeje Is. in July. Anchovy eggs and larvae were correlated significantly with zooplankton in July, and were not in June and August. It is likely that the low instantaneous mortality coefficients in eggs and high values in the larvae during June and high values in eggs and low values in the larvae during July were affected by the distribution pattern of zooplankton.

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