• 한국지구과학회:학술대회논문집
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• 2010.04a
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• pp.122-123
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• 2010

2000~2009년 동안 격월로 관측한 수온 관측 자료를 분석하여 표층 수온이 10년 동안 약 $1{\sim}1.9^{\circ}C$ 상승하는 경향을 관찰하였다. 상승폭이 해역마다 약간의 차이를 보이고 있는데 부산해역은 약 $1.5^{\circ}C$, 여수해역은 약 $1.7^{\circ}C$, 제주북부에서도 약 $1.7^{\circ}C$의 상승폭을 보임으로서 남해 동쪽보다는 서쪽해역의 상승폭이 약간 높게 나타났다. 남해 연안수의 평균 수온이 증가하는 추세경향으로 미루어 볼 때 남해 수온전선이 약해지게 되어 결과적으로 연안쪽으로 밀릴 것으로 추정된다. 제주도 모슬포는 약 $1.9^{\circ}C$ 가 상승하였으며 제주도 성산포는 2004~2009년 동안 약 $1.2^{\circ}C$ 상승하는 추세를 보였다. 이와 같은 수온의 변동성은 조위관측소에서 관측된 수온에서도 확인할 수 있는데 부산은 $0.2^{\circ}C$/8년, 여수 $0.4^{\circ}C$/10년, 제주북부는 $1.5^{\circ}C$/10년, 모슬포와 성산포는 $1^{\circ}C$/6년, 서귀포는 $1.7^{\circ}C$/8년 상승폭을 보인다. 조위관측소의 수온 상승폭보다 한국연안해류조사의 수온 상승폭이 약간 높게 나타나고 있는데 이는 관측소의 위치가 해안가에 있는 반면 연안해류조사는 선박을 이용하여 외해쪽에서 수온을 관측하기 때문에 고온 고염의 대마난류(Tsushima Warm Current) 영향을 더 많이 받았기 때문으로 볼 수 있다. 해수의 수온 상승 현상은 증가율이 약간 낮기는 하지만 50m 수심에서도 나타나고 있다. 부산해역, 여수해역, 제주북부 해역은 모두 약 $1.2^{\circ}C$의 상승폭을 보였으며, 제주도 성산포는 약 $1.1^{\circ}C$인 반면, 모슬포 해역에서는 약 $1.5^{\circ}C$로 상승추이가 크게 나타났다. 이와 같이 남해 연안수가 표층과 저층에서 동반 상승했다는 것은 대마난류의 세력이 강해졌다는 것을 보여주는 지시자(indicator)로서 최근 제주도와 남부지방의 기후온난화와 관련이 있을 것으로 추정된다. 하지만 상승률은 관측기간이 길어질수록 작아지는 경향이 있기 때문에 남해의 물리적 특성 변화를 보다 명확히 규명하기 위해서는 좀 더 장기적인 자료가 필요하다.

• Korean Journal of Environmental Biology
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• v.31 no.4
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• pp.448-457
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• 2013

Zooplankton community in the major ports of Korea, which were characterized by a specific marine environmental condition during summer, was studied. Water temperature in the ports of western areas was higher and while those in the East Sea was lower. Contradictorily, the salinity was lowest in the western areas, while being highest in the eastern area. The Chl-a concentration was highest in the southern areas and lowest in the eastern one. Zooplankton taxa were most diverse in the western areas and simplest in the eastern one. Copepods predominantly occurred in the western areas, but their abundance relatively decreased in the southern and eastern areas. Cluster analysis revealed that copepod communities were classified into 3 summit groups, the western, southern and eastern areas. The results indicate that zooplankton communities in Korean ports may be affected by biological factors like Chl-a concentration in addition to environmental factor such as temperature and salinity.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2007.12a
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• pp.198-199
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• 2007

Relation between SSTs(Sea Surface Temperatures) in the South Sea and intensity of typhoons which passed through the South Sea was analyzed for 36 years from 1970 to 2005. The SSTs in the South Sea show the rising trends continuously. The mean SST of the last 6 years(2000-2005) is higher 1.21$^{circ}C$ than the mean SST during 10 years(1970-1979). The rising trends are especially strong after 1994. The intensity of typhoon am be seen by the central pressure. The minimum central pressures of typhoons which passed through the South Sea show the descending trends. The mean minimum central pressure of the last 6 years(2000-2005) is lower 9hPa than t1m during 10 years(1970-1979). The correlation analysis shows that the rising of SSTs in the South Sea has relations with the strengthening of intensity of typhoons.

• Journal of Navigation and Port Research
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• v.32 no.5
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• pp.403-407
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• 2008

Relations between variation of SSTs(sea surface temperatures) in the South Sea of Korea and intensity of typhoons which passed through the South Sea of Korea was analyzed for 36 years from 1970 to 2005. The SSTs in the South Sea show the rising trends continuously. The mean SST of the last 10 years(1996-2005) is higher $1.03^{\circ}C$ than the mean SST during 10 years(1970-1979). The rising trends are especially strong after 1994. The intensity of typhoon can be shown by the minimum sea level pressure. The minimum sea level pressures of typhoons which passed through the South Sea show the descending trends. The mean minimum sea level pressure of the last 10 years(1996-2005) is lower 10.1hPa than that during 10 years(1970-1979). The correlation analysis shows that the rising of SSTs in the South Sea has relations with the strengthening of intensity of typhoons.

• Korean Journal of Plant Taxonomy
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• v.52 no.2
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• pp.97-101
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• 2022

Saussurea namhaedoana, a new endemic species narrowly restricted to Namhaedo Island of Korea, is reported in this study. It can be distinguished from other congeneric species of Saussurea in Korea by having persistent radical leaves until flowering, hastate or sagittate leaves with mucronate toothed to undulate-lobulate margins, grayish cobwebby hairs on abaxial leaf surfaces when young, and tubular involucre with grayish cobwebby hairs. Morphologically, S. namhaedoana is closely related to other species in Korea, such as S. gracilis Maxim., S. insularis Kitam., S. seoulensis Nakai and S. albifolia M. J. Nam and H. T. Im, sharing grayish or white hairs on the abaxial leaf surfaces. It, however, can be distinguished from its close relatives by having a distinct leaf shape, i.e., sagittate or hastate leaves. The phylogenetic relationship relative to congeners in East Asia is yet to be determined.

• Journal of The Korean Society of Grassland and Forage Science
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• v.23 no.4
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• pp.299-306
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• 2003

This study was carried out to select superior soybean cultivars for forage production for soybean forage production in Jeju. The results obtained are summarized as follows; Eighteen soybean cultivars were grown from May 11 to September 11 in 2002 in Jeju to select superior cultivars for forage production. Days to flowering was shortest(58 days) for Seokryangkong and Keunolkong, and longest(93 days) for Danpaheukdu. Days to flowering for other cultivars ranged from 65 to 69 days. Pureunkong and Namhaekong had greater heights(129.3 and 124.6 cm, respectively) while Keunolkong, Hwaeomkong and Seokryangkong had shorter heights. The number of branches per plant was gratest for Sobaekkong, Manrikong, Pungsankong, Kwangankong and Geumgangkong. The number of leaves per plant was geatest for Sobaekkong, Iksankong and Namhaekong. Rueunkong and Jangmikong had thicker stems. Fresh forage yield was greatest for Iksankong, Sobaekkong and Namhaekong(39.5, 39.3 md 38.0 MT/ha respectively). DM yield of forage was featest for Baekunkong, Hnrunkong and Danpaheukdu. Danwonkong, Dawonkong, Seokryanfong and Pungsankong had ueatest forage crude protein content. Duyukong and Kwangankong had featest forage crude fiber content. Jangmikong and Keunolkong had feater crude fat content, while Sobaekkong and Kwangankong had greater crude ash content. Namhaekong, Seokryangkong, Keunolkong and Jinpumkong had greater NFE contents ranging 40.0 to 43.5 and TDN was featest in Keunolkong, Danpaheukdu, Namhaekong and Seokryangkong had greater NFE contents ranging from 59.8 to 60.9％. The best cultivars in Jeju for forage soybean appear to be Namhaekong, Danpaheukdu md Baehukong on the basis of crude protein, TDN, and dry matter yields.

• The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
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• v.13 no.4
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• pp.325-332
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• 2008

To characterize the initiation, propagation and termination of Cochlodinium polykrikoides blooms in the southeast coastal waters of Korea, 2007, we have analyzed the data set of phytoplankton composition, physical and chemical water properties, and meterological data. The development of C. polykrikoides bloom in 2007 can be summarized in three steps. The first stage from middle of July to end of August was characterized by an unusually persistent and strong southerly wind. C. polykrikoides blooms established already by the strong wind in the middle of south coastal waters were advected intermittently into the study area. Accordingly, highly variable cell densities of C. polykrikoides were observed. At the second stage a favorable growing conditions for C. polykrikoides was developed, which was directed by changes in wind direction from south to northeast and thus enhanced transportation of offshore waters into inshore (August 8 to 30). C. polykrikoides bloom occurred through typical mechanism and showed high cell density. The last stage was represented by disappearance of C. polykrikoides. Typoon 'Nari' carrying heavy rain brought an unfavorable habitat to C. polykrikoides. Low saline condition formed in coastal water due to typoon effects continuously drove the dominant species to diatoms and flagellates which were prevailing over C. polykrikoides in this circumstances(from the middle of September). These stepwise processes could be the causative mechanism of the extraordinarily persistent C. polykrikoides bloom observed in southeast coastal water of Korea, 2007.

• 건강소식
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• v.35 no.3
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• pp.32-37
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• 2011

3월은 설렘의 또 다른 표현이다. 3월은 겨울과 봄의 경계이다. 겨울과 봄이 뒤섞여 차가움과 따뜻함이 공존하는 시기다. 추위에 지칠 대로 지친 겨울, 천천히 다가오는 봄이 간절히 기다려진다. 그토록 기다려지는 봄인데, 가만히 앉아서 봄을 맞을 수 없는 일. 그렇다면 봄이 오는 곳으로 봄 마중을 나가자. 봄을 일찍 맞이할 수 있는 곳으로는 남해만한 곳이 없다.

• 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.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.9 no.4
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• pp.245-249
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• 1976

The present paper deals with estimation of zooplankton production in the South Sea of Korea based on the plankton data of the Annual Report of Oceanographic Observations, Fisheries Research and Development Agency, Korea during the period of seven years from 1967 through 1973. Net zooplankton biomass of the layer tipper 150 meters is calculated with an average of $70.2\;mg/m^3$ and gross production in the region $59,800\;km^2$ are about $5.14\~10.27\times10^6\;tons/year$. Mean zooplankton productivity is estimated $86\~172\;tons/km^2/year$.