• Environmental Sciences Bulletin of The Korean Environmental Sciences Society
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• 제4권4호
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• pp.249-253
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• 2000

Data obtained from a cruise from 4~12 December, 1998 was analyzed to estimate the mixing effects of wind, surface cooling, and tide. A band denoting a mixing area with a temperature difference of less than 1$^{\circ}C$ between the sea surface and the bottom extended 40~60 km from the coast into the open sea, following 125$^{\circ}$ 30\` E in longitude. This band was divided into two areas; a well-mixed area close to the coast and a stratified region in the open sea. The mixing effect due to the wind was only 2%, yet the mixing effect due to the tides was about 68%. This indicates that surface cooling and tides were the major factors involved in the mixing mechanism on the west coast during the cooling season.

• 한국환경과학회지
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• 제20권4호
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• pp.483-491
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• 2011

Harvesting of marshfire glasswort (Salicornia europaea) by local people has been increased recently since this plant was known for a well-being food. Even though some harvesting sites are facing high risk of environmental pollution, Salicornia europaea is still harvested on a large scale. Therefore, to investigate safety of Salicornia europaea as a food resource, salt marsh environment, potential harvestable biomass, element and heavy metal accumulations in Salicornia europaea has been studied in three salt marshes, west-coast of Korea. Salicornia europaea showed 150 - 230$g/m^2/yr$ harvestable biomass. Biomass and nitrogen contents of Salicornia europaea were closely related to soil nitrogen and carbon concentrations. Average Na, Zn, Fe, Cr accumulations in Salicornia europaea were 41479, 18, 297, 1.5 (mg/kg), indicating valuable trace element contents. However, average heavy metal accumulations such as As, Cd, Cu, Pb, Hg accumulations were 1.5, 7.1, 4.2, 1.5, 0.1 (mg/kg), which were even or higher than national standards (0.5, 0.5, 2, 2, 0.1) of salts. These results imply that harvesting and eating of Salicornia europaea in west-coast research sites would be harmful because the contents would be much higher if it is calculated as only considering salts and minerals. Therefore, harvesting of Salicornia europaea from some salt marsh in west-coast of Korea should be done cautiously.

• 한국지형학회지
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• 제26권2호
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• pp.55-67
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• 2019

This study tries to reveal and compare uplift rates in the southern coast of the Korean Peninsula, based on absolute ages from coastal terrace on the coast. The uplift rate in the East Coast from previous study ranges from 0.258 to 0.357 m/ka with a median rate of 0.262 m/ka and shows an increase trend from north to south. Median uplift rate of 0.082 m/ka with minimum and maximum rates of 0.053 m/ka and 0.127 m/ka, respectively, is calculated in the South Coast from previous and this studies. The uplift rate in the West Coast from 3 absolute ages in this study is 0.082~0.112 m/ka with a median rate of 0.090 m/ka. Based on these uplift rates in the southern coast of the Korean Peninsula, it can be concluded that since MIS 5, the East Coast has experienced 3 to 4 times faster uplift rate than the West and South Coasts. However, this study suggests that more discussion on whether these uplift rates are long-term tectonic movement associated with tilted warping movement since the Tertiary or short-term tectonic movement associated with isostatic rebound due to sea level change since the Last Interglacial is needed.

• Ocean and Polar Research
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• 제35권1호
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• pp.63-68
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• 2013

The European Common Barnacle Balanus perforatus Brugiere (Crustacea, Cirripedia) has been introduced into the east coast of Korea, presumably via the ballast water of ships. The species has since been spreading along both the northern and southern coast to the east, most likely due to alongshore currents. We predicted the potential range expansion of Balanus perforatus in Korean waters using Genetic Algorithm for Rule-set Prediction (GARP), an environmental niche modeling technique. The results show that much of the southern coastal waters of Korea could be colonized by the spread of the nonindigenous species, but that the west coast is unlikely to be invaded. More sampling on the west coast would enhance the predictability of the model. To our knowledge, this is the first report of its kind for predicting marine nonindigenous species in Korean waters using GARP modeling.

• 헤리티지:역사와 과학
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• 제42권4호
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• pp.132-151
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• 2009

황해도 굿에서 사냥거리와 타살거리, 군웅거리는 사냥으로 제물을 마련하여 동물이 희생되어 신령에게 바치기까지의 과정을 의례적으로 표현하고 있다. 이러한 황해도 굿의 특징인 모의사냥과 동물희생의 의례는 일본의 시바마츠리에서도 행해지고 있다. 이 논문은 황해도 굿과 시바마츠리를 비교민속학적 관점에서 구조적으로 비교해보았다. 황해도 굿은 기존의 연구 성과에서 소찬으로 모셔지는 신령과 육찬으로 모셔지는 신령으로 구분되는 것으로 알려져 있다. 이러한 신령에 대한 구분은 농경문화와 수렵문화를 각기 배경을 달리하는 신관(神觀)에서 비롯되었음을 알 수 있다. 황해도 굿은 여러 생산기반을 달리하는 무속을 수용하여 형성되었다. 따라서 굿의 목적에 따라 거리는 재편성하여 진행된다. 사냥거리는 제물이 산에서 마련하였음을 극적으로 표현하며, 생명력있는 동물이 타살됨으로서 군웅신을 환유로 나타내며 제물이 제공된다. 따라서 동물희생의례는 제물의 액을 풀어주고 신령으로부터 의지를 얻어내는 양의적인 의례이다. 일본의 시바마츠리가 행해지는 지역은 수렵과 밭농사를 겸하는 산간의 반농반렵(半農半獵)의 지역으로 농경의례와 수렵의례가 복합적으로 나타나있다. 정월에 행하는 시바마츠리는 산에서의 농사와 수렵의 시작으로 풍요를 기원하는 의미도 있다. 따라서 화전농경을 상징적으로 나타내는 동화제(洞火祭)와 모의적인 사냥과 동물희생의 의례가 복합적으로 구성되어 있다. 이러한 의례는 동남아시아의 산간지역의 밭농사민이 정초에 행하는 의례적 수렵관행과 일치한다. 황해도굿과 일본 시바마츠리는 표면적으로 모의사냥과 동물희생이 의례적으로 이루어지는 공통점이 있으나 구조적으로는 달리하고 있다. 즉 이러한 동물희생의례는 문화적 배경을 달리하며 각기 의례가 형성되었음을 알 수 있다.

• 한국수산과학회지
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• 제29권6호
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• pp.805-827
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• 1996

Fifteen mysid species representing 4 genera are reported from the west coast of Korea, Of these, Archaeomysis vulgaris (Nakazawa), Archaeomysis japonica Hanamura, Jo and Murano and Acanthomysis tenuicauda Murano are new to the Korean fauna, Acanthomysis aspera li, Acanthomysis fujinagai li, Acanthomysis japonica Nakazawa and Acanthomysis okayamaensis li are new to the western Korean fauna. Detailed description with illustrative figures, ecological notes and keys to species are given.

• 대한전기학회논문지:전기물성ㆍ응용부문C
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• 제50권6호
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• pp.276-280
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• 2001

This paper presents the result of a study on the distribution characteristics of salt contaminants in the west coast region, from Inchon to Yearsoo, of South Korea. To evaluate the distribution characteristics of salt contaminants, we had measured the equivalent salt deposit density(ESDD) with brush wiping method for thirteen month(from May 1999 to June 2000). Under the consideration on the measuring interval and method, normalization method was applied for the ESDD data. Besides the measurement, the chemical analysis (chromatography) was carried to investigate the relationship, between the electrical property and the amount of specific ingredient, such as sodium, magnesium and chloride. From the result, we could get the representative value of contamination for each site and distribution characteristics of salt contaminants with the distance from sea in the west coast.

• Journal of Ecology and Environment
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• 제42권1호
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• pp.12-19
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• 2018

Background: The objective of this study was to determine the relationship between soil environmental factors and halophyte distribution in the west coast of South Korea. Soils of our study sites were categorized into two groups: salt marsh and estuary marsh. Results: Salinity was higher in the salt marsh group than that in the estuary marsh group. However, total nitrogen, silt, and clay contents were higher in the estuary marsh group than those in the salt marsh group. Although altitude had a wider range in the salt marsh group, the mean altitude was higher in the estuary marsh group than that in the salt marsh group. Annual halophytes of seed propagation species were distributed parallel to the coast line on salt marsh. Higher coverage of vegetation was found in the area closer to the coast line. Plant density was higher near dead parental plants in estuary marsh, showing less difference in area that was more distant from the coast line. Conclusions: Results of canonical correspondence analysis (CCA) for vegetation distribution and sediment environmental factors and germination analysis in the coast line showed significant relationship with halophyte distribution. Therefore, they can be used as an indicator of coastal plant movement due to sea level rise.

• 한국수산과학회지
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• 제54권4호
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• pp.388-396
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• 2021

Antimicrobial resistance patterns of Escherichia coli were investigated. Strains were isolated from 310 shellfish, 36 crustaceans, and 12 fish collected off the West Coast of Korea from April 2019 to October 2020. Two hundred and ninety-five E. coli strains were isolated from shellfish, 100 from crustaceans, and 54 from fish. Strains isolated from shellfish showed the highest resistance to ampicillin (27.5%), whereas those from crustaceans were resistant to sulfisoxazole (30.0%) and those from fish were resistant to ampicillin (59.3%) and sulfisoxazole (59.3%). Ceftazidime resistance was observed in strains isolated from short neck and hard clams, whereas gentamicin resistance was observed in strains from fish. Multi-drug resistance was observed in 56 strains (48.7%) isolated from shellfish, 11 (28.2%) from crustaceans and 27 (73.0%) from fish. Depending on the source of isolation, the strains showed specific antimicrobial resistance tendency. Strains isolated from shellfish showed 12 different multi-drug resistance patterns, whereas those from crustaceans showed high resistance (59%) to a single antimicrobial agent and those from fish showed a broad trend of multi-drug resistance to more than eight antimicrobials.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2004년도 추계 학술발표회 제16권2호
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• pp.237-240
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• 2004

When the concrete structures are in contact with seawater, concentration of chloride for estimating chloride diffusion coefficient can be defined as the chloride concentration of sea water. However, in case the concrete structures, constructed in the seashore, aren't directly in contact with seawater, it is difficult to establish the interface concentration of chloride. In addition, marine concrete structures are greatly affected by salt attack such as rebar corrosion, among the cause of salt attack, airborne sea salt is primary factor. Therefore, in this study, salt attack environment by airborne sea salt was investigated in terms of a seasonal distribution at 33 spots, 6 areas in the East, West, South coast for 1 year. Results indicated that in the South coast, the amount of the airborne sea salt is comparatively higher in summer. in the West coast. higher in winter. On the other hand, in the East coast, the amount of the airborne sea salt is rarely affected by a season.