• 환경생물
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• 제39권1호
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• pp.81-87
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• 2021

2008년 4월부터 2009년 3월까지 1년간 우리나라 서남해안 함평만의 도리포에서는 조간대의 해조류 식물 군집과 가입리에서는 식용 해조류 가시파래의 월별 변동성을 매월 조사하였다. 조사된 해조류는 총 22종이었으며, 녹조류 5종, 갈조류 4종 그리고 홍조류 13종이었다. 함평만 도리포 암반 조간대에서 연간 우점하는 해조류는 구멍갈파래였고, 준 우점종은 잎파래와 애기가시덤불이었다. 조간대 상부에서 하부에 이르는 수직분포는 잎파래 - 애기가시덤불 - 구멍갈파래 - 지충이었다. 가시파래의 생물량은 6월에 최대를 보였고 11월에 최소를 보였으며, 2.4-98.2 g dry wt. m^-2 범위를 나타냈다. 가시파래의 생물량은 수온과 연관이 있어 보이지만 영양염류 및 빛의 강도 같은 기타 환경요인과의 관계는 추후 지속적인 연구가 요구된다.

• Fisheries and Aquatic Sciences
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• 제3권1호
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• pp.8-13
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• 2000

Monthly mean chlorophyll concentration in the East Sea was estimated from the ocean color observed by the Coastal Zone Color Scanner (CZCS) on Nimbus-7 satellite which had performed various remote sensing missions from 1979 to 1986. The areas of high chlorophyll concentration were found in the sea between Siberia coast and Sakhalin Island, in the Donghan Bay and in the Ulleung Basin. In the southwestern East Sea, especially in the area near Ulleung Island, the yearly maximum chlorophyll concentration occurred in December. The chlorophyll concentration in Ulleung Basin in December was about two times higher than during spring bloom in April. The early winter bloom occurred in the warm side of the front that was formed between warm water from the East China Sea and nutrition rich cold water from the northern East Sea.

• 한국환경과학회:학술대회논문집
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• 한국환경과학회 2003년도 International Symposium on Clean Environment
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• pp.145-150
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• 2003

16 APEX floats, autonomous profiling floats deployed as part of the Array for Real-time Geostrophic Oceanography (ARGO) program, are used to understand the currents at 800 m underwater in the southwestern East Sea. The flow penetrates into the Ulleung basin (UB) through two paths： an extension of the southward flowing the North Korean Cold Water along the east coast of Korea and between Ulleung Island and Dok island. Flows at 800 m are observed range 0.2 to 4.29 cm/sec and the variability in the north in the DB is stronger than that in the south. The eddy kinetic energy is found a few $cm^{2}$ $S^{-2}$. In the UB, cyclonic flows from 0.3 - 1.6 cm/see are observed with the bottom topography.

• 한국지구과학회지
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• 제23권8호
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• pp.722-735
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• 2002

우리 나라 남서해안의 상부조간대에 분포하는 퇴적물의 퇴적상과 지구화학적 특성을 살펴보기 위하여, 이들 시료를 대상으로 퇴적물의 입도별 분포와 금속원소의 함량에 대한 분석을 실시하였다. 퇴적물의 입도는 잔자갈에서 니질크기로 불규칙한 분포특성을 가진다. 퇴적물의 분급도는 매우 양호한 분급에서 매우 불량한 분급으로 다양하게 나타났으며, 왜도는 대체로 양의 왜도가 우세하였다. 퇴적물 내에 함유된 금속원소들의 지구화학적 거동은 퇴적물 입도에 대한 의존도가 일부 영향을 주기는 하였으나, 복잡한 해저지형과 심한 변화를 보이는 조류 및 주변지질의 환경적 변화에 의해 많은 영향을 받은 것으로 보인다. 퇴적물에 함유된 금속원소들의 농축을 알아보기 위한 농집지수는 Co와 Cr이 보통 내지 심한 오염으로, Cu와 Ni가 보통 오염에 해당하였으나 특별한 집중 경향이 인지되지는 않았다. 따라서, 남서해안 퇴적물의 입도와 금속원소들의 함량분포는 복잡한 해저지형과 이에 따른 조류 유형의 심한 변화 그리고 주변지질 등이 복합적으로 영향을 미치는 해역으로 해석된다.

• 한국수산과학회지
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• 제43권2호
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• pp.146-158
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• 2010

In order to evaluate the characteristics of sediments and pollution by organic matter and metallic elements in intertidal sediments along the southwestern coast of Korea, we measured various geochemical parameters, including the mean grain size (Mz), water content (WC), ignition loss (IL), chemical oxygen demand (COD), acid volatile sulfide (AVS), and metallic elements (Al, Fe, Cu, Pb, Zn, Cd, Cr, Mn, Hg, As), in intertidal surface sediments. The Mz of the surface sediments ranged from 2.1 to 8.3$\phi$, indicating that the surface sediments consist of various sedimentary facies, such as sand, slightly gravelly mud, sandy mud, and silt. The IL and COD in surface sediment ranged from 0.8 to 5.5% (mean $2.9\pm1.2%$) and from 3.9 to $13.8\;mgO_2/g{\cdot}dry$ (mean $8.5\pm2.6\;mgO_2/g{\cdot}dry$), respectively, which were lower than the values for surface sediment in areas near fish and shellfish farms or industrial complexes. No AVS was detected at any sampling station, despite various sedimentary facies. Most of metallic elements in surface sediments showed relatively good positive correlations with Mz and IL, which imply that the concentrations of metallic elements are mainly controlled by grain size and the organic matter content. The concentrations of metallic elements, except As, at some stations were considerably lower than those in the Sediment Quality Guideline (Effect Range Low, ERL) proposed by the National Oceanic and Atmospheric Administration (NOAA) in the United States. Similarly, the geoaccumulation index (Igeo) class indicated that pollution by metallic elements in intertidal surface sediment, except As, was moderate or non-existent. Our results imply that the intertidal surface sediments along the southwestern coast of Korea are not polluted by organic matter and metallic elements and are healthy for benthic organisms.

• 한국지구과학회지
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• 제37권2호
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• pp.89-106
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• 2016

고창 개방형 조간대는 황해의 동편, 한국 서남해 연안에 위치하며, 대조차, 개방형 연안, 모래 저질의 특징을 보인다. 본 연구는 고창 조간대에서 표층 퇴적물의 계절별 퇴적상 변화를 연구하였다. 2014년 2월, 5월, 8월, 11월의 사계절에 3개 측선을 따라 총 252개 지점에서 표층 퇴적물을 채취하고 분석하였다. 고창 조간대의 2014년 표층 퇴적물은 주로 세립 사질 퇴적물로 구성되며, 계절별로 겨울에 조립하고, 여름에 세립한 경향을 보였다. 연구 지역 인근의 계절별 파랑과 조위 관측 자료에 근거하여, 고창 조간대의 표층 퇴적작용에 영향을 미치는 요인은 파랑이 조석보다 계절의 변화 효과가 큰 것으로 해석되었다. 겨울에 상대적으로 큰 파고의 파랑 영향으로 표층 퇴적물이 조립한 반면, 여름에는 상대적으로 낮은 파고의 파랑 영향으로 세립한 것으로 해석되었다. 고창 조간대의 2014년 퇴적상 공간 분포는 고조대의 계절별 편차가 저조대에 비해 상대적으로 크게 나타났으며, 고조대 입도가 조립하고 분급이 불량하게 나타났다. 고조대에서 저조대 방향으로 갈수록 입도가 세립해지고 분급이 양호해지며 계절별 편차가 작아졌다.

• Ocean Science Journal
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• 제42권1호
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• pp.41-48
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• 2007

We investigated the temperature and salinity effects on the major fish species in the wintering grounds based on trawl surveys and oceanographic observations in the southwestern waters of Korea during March-early April in 2002-2003. The influence area of warm Kuroshio water was limited to the southwestern area of Korea in 2003 with a range of $7.7-16.3^{\circ}C$, 32.54-34.70 of salinity, wider than that of 2002. The number of fish species and density of major fish species in 2003 were higher than in 2002. Geographical estimation showed high proportions of species number and catches in the areas around Jeju Islands, southwestern waters and the southeastern coast of Korea. Five species; silver pomfret (Pam pus echinogaster), hairtail (Trichiurus lepturus), anchovy (Engraulis japonicus), Small yellow croaker (Larimichthys polyactis) and yellow goosefish (Lophius litulon) were most abundant, composing above 60% of the total catch in 2002 and 2003. More than 50% of catch in the major fish species were mostly distributed in the range of $9.5-11.0^{\circ}C$ of temperature and 33.1-33.9 of salinity. Non-parametric estimation for the major species showed the 1st mode around $10^{\circ}C$ and the 2nd mode at $8-9^{\circ}C$ in 2002 and $11-14^{\circ}C$ in 2003. Among major fish species, hairtail was principally composed of juveniles, and larger individuals were caught in southeastern waters. These results are considered to be helpful for the area-based fishery management strategy for the wintering grounds of the Yellow Sea and coastal waters of Korea.

• 환경생물
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• 제33권3호
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• pp.274-278
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• 2015

A newly recorded glycerid polychaete collected from mud of the tidal flat in the southwestern coast of Korea is identified as Glycera fallax Quatrefages, 1850 based on the morphologies of papaillae and ailerons on proboscis, parapodial postsetal lobes, and branchiae. In this paper, we provide a detailed description and illustration of Korean materials of this species and a key to the species of the genus Glycera from Korean waters.

• Animal Systematics, Evolution and Diversity
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• 제24권2호
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• pp.199-203
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• 2008

Desmotimmia mirabilis (Timm), a rarely known desmoscolecid nematode species, was discovered for the first time from the Yellow Sea off southwestern coast of Korea. This is the third record of the species, and the first report from the northwestern Pacific region. Redescription is prepared on the basis of a male specimen from South Korea.

• ALGAE
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• 제20권1호
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• pp.53-59
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• 2005

The objective of this study was to clarify marine algal flora and community structure of 16 uninhabited islands in Sinangun area, south western coast of Korea. As a result, a total of 63 species - 11 greens, 16 browns and 36 reds - was identified. The functional groups of marine algal species were filamentous 14.3%, foliose 20.5%, corticated 45.3%, leathery 13.7%, and articulated calcareous algae 6.2%. The (R+C)/P value was calculated as 2.9 showed temperate flora. The result of DCA showed that 16 uninhabitated islands tend to be distributed eastern and western parts. The dominant species was Ulva pertusa, while the subdominats were Gelidium divaricatum, Myelophycus simplex. The vertical distribution pattern of intertidal marine algae represented three distinct zones; Gloiopeltis furcata, Myelophycus simplex, Gelidium divaricatum - Ulva pertusa, Enteromorpha spp., Ishige okamurae - Ulva pertusa, Sargassum thunbergii, Symphyocladia latiuscula.