• 한국어류학회지
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• 제8권1호
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• pp.22-48
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• 1996

1988년 9월부터 1996년 3월까지 우리 나라의 전 연안에서 채집된 놀래기아목(亞目)(Labroidei) 어류에 대하여 분류학적으로 재검토하고, 미세 분포를 조사하였다. 한국산 놀래기아목 어류는 자리돔과(Pomacentridae), 키크리과(Cichlidae), 망상어과(Embiotocidae), 놀래기과(Labridae)와 파랑비늘돔과(Scaridae)의 5과에 22속(屬)32종(種)으로 정리되어, 이들의 과, 속 및 종 검색표를 제시하였다. 본 조사에서 직접 표본을 입수한 15속 21종은 표본을 중심으로 계수 계측형질을 재 기재하였다. 이중에 1996년 3월 전남 완도에서 채집된 망상어과 어류 Ditrema viridis Oshima는 국내에서는 처음으로 보고되는 종이다. 외래도입종인 키크리과 어류를 제외한 대부분의 놀래기아목 어류는 쿠루시오 난류의 영향을 받는 제주도 연안과 남해안, 그리고 동해 남부와 울릉도 근해에까지 분포하였다.

• Fisheries and Aquatic Sciences
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• 제3권2호
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• pp.143-150
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• 2000

Assuming that summer surface waters in the South Sea (northern East China Sea) are formed mostly by a mixing of three source water (Changjiang Discharge Water; Kuroshio Water and Yellow Sea Surface Water) we apply optimum multiparameter (OMP) analysis to calculate the mixing ratio of each source water to a given surface water. Since OMP requires more parameters than the number of water types (three in this study), we utilize two radium isotopes of dissolved $^{226}Ra\;and\;^{228}Ra$ along with temperature and salinity. Parameter values of each source water are deduced from in situ and historical data. Results with three source of waters on the surface waters are quite promising with less than $1\%$ of unanswered portions. Results not only reproduce the measured temperature and salinity faithfully but also discern the water masses of similar T and S according to their source water mixing. Extending OMP analysis to a whole water column obviously requires more parameters because more source waters are involved in the water mass formation. Original OMP routine utilized dissolved oxygen and nutrients. However, they seem to be perturbed too much by biological activities in the case of shallow waters. We discussed the use of other potential parameters. Also the benefit of parameter substitution is briefly introduced for the future OMP application on shallow waters.

• 한국해양학회지
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• 제22권1호
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• pp.34-42
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• 1987

동해 西南海域의 식물플랑크톤의 분포와 환경요인의 상관관계를 연구하기 위해 Canonical Correlation 분석을 실시하였다. 조사된 7가지의 환경요인 가운데서 식물플랑크톤의 분포에 가장 중요한 영향을 끼친 것은 봄철에 수온 가을철에 염분이었다. 이 두가지 환경요인의 계절적인 변화와 연구 수역의 해양 물리학적 현상에 대하여 논하였다. 쿠로시오 指表種들과 Protoperidinium 속의 두종들은 높은 수온 및 높은 염분과 量的인 연관성을 나타낸다. 소형 우주주조류와 無色 質鞭毛 類들은 낮은 수온역을 선호하여, 서로 규산염에 대해 생태적인 경쟁 관계에 있는 것으로 보인다. 그 결과 無色 質鞭毛類가 보다 규산염농도에 대하여 더 낮은 값 을 보인다. 질소 고정 난조류의 一種인 Oscillatoria erythraea 는 인산염 농도와 陽 的인 연관성을 나타내었다.

• 한국해양환경ㆍ에너지학회지
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• 제5권4호
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• pp.41-47
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• 2002

2001년 12월 27일, 마라도 부근 해역에 설치된 파랑계측용 부이가 사고로 이탈하였고, 이 부이는 표층 해류를 따라 제주 및 일본 남부를 거쳐 태평양으로 표류하였다. 이 유실된 부이를 위성통신을 이용한 위치확인 방식으로 추적함으로써 2002년 6월 29일까지의 표층해류정보를 파악할 수 있었다 부이의 이동 경로에 해당하는 해역에서의 취득 가능 바람자료를 부이의 위치와 함께 정리하여 각종 해류에 관련된 연구에 실용적인 정보를 제공하고자 하였다.

• 한국해양학회지
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• 제28권1호
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• pp.47-51
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• 1993

국제 쿠로시오 공동조사 (1865-1974) 및 황해의 해양자원 개발연구 (9-10월, 1992) 기간중에 채집된 시료를 분석하여 한반도 주변 해역에서 출현하는 해산지각류 Evadne spinifera의 시공분포를 조사하였다. E. spinifera는 주로 동해에서 8, 9월에 집중적으로 출현하고 있었으며 최대출현량은 $11{\;}indiv./\textrm{m}^3$이었고 황해에서는 9월에 산발적으로 미량 출현하였다. 본종은 수온 $23.42-28.24^{\circ}C$, 염분 $32.11-24.20\textperthousand$ 범위에 서 출현하였으며 $26.80^{\circ}C$, $32.81\textperthousand$에서 최대 개체군을 형성하여 고온을 선호하는 협온 성종으로 밝혀졌다.

• 한국해양학회지:바다
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• 제5권4호
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• pp.357-362
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• 2000

황해 남부해역에서 199년 8월에 채집된 시료로부터 산소동위원소비(${\delta}^{18}$O)와 수소동위원소비(${\delta}$D)를 측정하였다. 표층시료의 경우 염분과 ${\delta}^{18}$O 그리고 염분과 ${\delta}$D는 앙의 상관관계를 보이며, ${\delta}^{18}$O와 ${\delta}$D 또한 매우 좋은 양의 상관관계를 가진다. 이들 자료는 연구지역의 해수가 장강수와 변형된 쿠로시오수의 혼합물이며 , 산소와 수소 동위원소가 연구지역에서 수괴의 성질과 행동을 연구하는데 유용한 추적자로 사용될 수 있다는 것을 의미한다. 또한 염분과 수온만으로는 구별이 어려운 수괴를 구분하고 특성을 파악하는데도 안정등위원소가 좋은 추적자로 사용될 수도 있음을 보여 주었다.

• Journal of the korean society of oceanography
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• 제35권3호
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• pp.129-152
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• 2000

The Cheju Current (CC), defined here as a mean eastward flow in the Cheju Strait, mostly carries water of high temperature and salinity originating from the Kuroshio in winter and spring, the Cheju Warm Current Water (CWCW). The strong core of the eastward component of the CC is found close to Cheju Island (Cheju-Do, hereafter) in winter and spring with a peak speed of about 17.0 cm/s. The eastward flow weakens towards the northern Cheju Strait, and a weak westward flow occurs occasionally close to the southern coast of Korea. The volume transport ranges from 0.37 to 0.45 Sv(1 Sv=10$^6$ m$^3$/s) in winter and spring. Seasonal thermocline and harocline are formed in summer and eroded in November. The occurrence of the CWCW is confined in the southern Cheju Strait close to Cheju-Do below the seasonal thermocline in summer and fall, and cold water occupies the lower layer north of the CWCW which is thought to be brought into the area from the area west of Cheju-Do along with the CWCW. Stratification acts to increase both the speed of the CC with a peak speed of greater than 30 cm/s and the vertical shear of the along-strait currents. The strong core of the CC detached from the coast of Cheju-Do and shifted to the north during the stratified seasons. The volume transport in summer and fall ranges 0.510.66 Sv, which is about 1.5 times larger than that in winter and spring. An annual cycle of the cross-strait sea level difference shows its maximum in summer and fall and minimum in winter and spring, whose tendency is consistent with the annual variability of the CC and its transport estimated from the ADCP measurements. Moored current measurements west of Cheju-Do indicate the clockwise turning of the CC, and the moored current measurements in the Cheju Strait for 1530 days show the low-frequency variability of the along-strait flow with a period of about 37 days.

• Journal of the korean society of oceanography
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• 제39권1호
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• pp.1-13
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• 2004

The Yellow Sea Warm Current (YSWC) and the Yellow Sea Cold Bottom Water (YSCBW) are two protruding features, which have strong influence on the community structure and distribution of zooplankton in the Yellow Sea. Both of them are seasonal phenomena. In winter, strong north wind drives southward flow at the surface along both Chinese and Korean coasts, which is compensated by a northward flow along the Yellow Sea Trough. That is the YSWC. It advects warmer and saltier water from the East China Sea into the southern Yellow Sea and changes the zooplankton community structure greatly in winter. During a cruise after onset of the winter monsoon in November 2001 in the southern Yellow Sea, 71 zooplankton species were identified, among which 39 species were tropical, accounting for 54.9 %, much more than those found in summer. Many of them were typical for Kuroshio water, e.g. Eucalanus subtenuis, Rhincalanus cornutus, Pareuchaeta russelli, Lucicutia flavicornis, and Euphausia diomedeae etc. 26 species were warm-temperate accounting for 36.6% and 6 temperate 8.5%. The distribution pattern of the warm water species clearly showed the impact of the YSWC and demonstrated that the intrusion of warmer and saltier water happened beneath the surface northwards along the Yellow Sea Trough. The YSCBW is a bottom pool of the remnant Yellow Sea Winter Water resulting from summer stratification and occupy most of the deep area of the Yellow Sea. The temperature of YSCBW temperature remains ${\leq}{\;}10^{\circ}C$ in mid-summer. It is served as an oversummering site for many temperate species, like Calanus sinicus and Euphaisia pacifica. Calanus sinicus is a dominant copepod in the Yellow Sea and East China Sea and can be found throughout the year with the year maximum in May to June. In summer it disappears in the coastal area and in the upper layer of central area due to the high temperature and shrinks its distribution into YSCBW.

• Journal of Ecology and Environment
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• 제35권1호
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• pp.15-25
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• 2012

Time series of ocean climate indices and catch records were used to identify the alternation patterns of pelagic fish populations in relation to climate regime shifts. During 1910-2008, an orderly alternation of dominant pelagic fish groups was observed in the Tsushima Warm Current (TWC; Yellow Sea-East China Sea-East Sea/Japan Sea) and Kuroshio-Oyashio Current (KOC; Northwestern Pacific) regions. After the collapse of herring fishery in the late 1920s, the sardine (A group) dominated in the 1930s, 3 other species (C group; Pacific saury, jack mackerel, and anchovy) dominated in the 1950s-1960s, chub mackerel (B group) dominated in the 1970s, and then sardine (A group) dominated again during cool regime in the 1980s. As sardine biomass decreased in association with the climate regime shift that occurred in the late 1980s, catches of C group immediately increased after the regime shift and remained at high levels during warm regime in the 1990s. Alternations of dominant fish groups occurred 6 times between 1910 and 2008. The dominant period of the 7 species lasted for 10-20 years. The catch of Pacific sardine in the TWC and KOC regions showed a negative correlation with the catch of the other 5 species (Pacific herring, anchovy, jack mackerel, Pacific saury, and common squid), suggesting that the abundance of the 5 species is strongly affected by the abundance of Pacific sardine in relation to the climate regime shifts. The total catch level of the 7 species in the KOC region was generally higher than that in the TWC region before 1991 but was lower after 1992, suggesting that the fish populations in the Pacific side are shifted to the TWC region by zonal oscillation of the oceanic conditions in relation to the climate regime shift in the late 1980s.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2008년도 International Symposium on Remote Sensing
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• pp.289-292
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• 2008

Recently, several satellite data analyses projects and numerical weather prediction (NWP) reanalysis projects have produced the ocean surface Latent Heat Flux (LHF) data sets in the global coverage. Comparisons of these LHF data sets showed substantial discrepancies in the LHF values. Recently, the increase of LHF in during 1970s-1990s over the global ocean is shown by the LHF data that have been developed at the Objective Analyzed Air-Sea Fluxes (OAFlux) project. It is interesting to investigate the existence of the increase of LHF over a global ocean in the other LHF products. It is interesting to investigate the existence of the increase of LHF over a global ocean in the other LHF products. In this study, we assessed the consistencies and discrepancies of the inter-annual variability and decadal trend for the period 1988-2005 among six LHF products ((J-OFURO2, HOAPS3, IFREMER, NCEP1,2 and OAFlux) over the global ocean. As results, all LHF products showed a positive trend. In particular, the positive trend in satellite-based data analyses (J-OFURO2, HOAPS3, IFREMER) is larger than that in reanalysis products (NCEP1/2). Also, the consistencies and discrepancies are shown on the spatial patterns of the LHF trends across the six data sets. The positive trend of LHF is remarkable in the regions of western boundary currents such as the Kuroshio and the Gulf Stream in all LHF data sets. But, the discrepancies are shown on the spatial patterns of the LHF trends in tropics and subtropics. These discrepancies are primarily caused by the differences of the input meteorological state variables, particularly for the air specific humidity, used to calculate LHF.