• 한국항해학회지
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• 제16권2호
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• pp.41-52
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• 1992

It is, as everyone knows, very important for human beings to protect and conserve marine environment. We has believed the ocean is so wide and deep that it cannot be polluted. But it has begun to doubt the capacity of self-purification of the ocean due to pollution arising from marine casualities. It has proved that semi-enclosed sea is likely to be polluted and cannot be restored easily once pollution occurs. Therefore, first of all it is important to take preventive measures for prevention of marine pollution in the semi-enclosed sea like the Yellow Sea. Many of regional conventions for prevention of marine pollution have come into existence. this dissertation was set out for the fact that the Yellow Sea is semi-enclosed sea which is vulnerable to marine pollution. It is desirable not to deal with marine preservation of the Yellow Sea by a single exclusively but to deal with it by cooperation of all coastal states under the present circumstances. I proposed a program of regional cooperation to protect and conserve the Yellow Sea. This program must be progressed with gradual arrangements. First, they must establist a basic cooperation committee to work basic affairs on the protection of marine environment within the Yellow Sea. The Committee Mainly play parts of study and research concerned with pollution of the Yellow Sea in the non-governmental side and consist of legal and scientific experts. Second, they must establish the control Committee to prevent marine pollution of the Yellow Sea substantially. There is a reason that regional cooperation cannot be directly concluded with the regional tready. Because there is a problem of Recognition of States left. In principle, a subject of tready must be a state in the International Law. But they have not made Recognition of State which is demanded by International Law between North and South Koreas. Therefore, the Control committee must play a substantial part of prevention from pollution instead of the treaty. Finally, we concluded tentatively named $\ulcorner$Convention on Regional Cooperation for Protection of Marine Environment of the Yellow Sea from Pollution$\lrcorner$ if the matter is settled which is related to Recognition of States in the International Law.

• 한국임상수의학회지
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• 제20권2호
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• pp.220-223
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• 2003

Hematology and serum chemistry data were collected over a 12-yr period for California sea lion (Zalophus californianus) in Everland zoological Gardens. The objective of this study was to determine hematology and serum chemistry values for the California sea lion lived in fresh-water captive environment, including a comparison between male and female. The results didn't show any difference between male and female in statistics. However, hyponatremia was shown in some case compared with reported blood data of California sea lion. That was supposed that it was associated with a fresh-water captive environment.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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• pp.579-581
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• 2003

Recently, the environment of the Ariake Sea, Japan has changed drastically. In this study, the result of sea survey, synchronizing the passage time of the Landsat in August 2002 was collated with the satellite data to develop the evaluating equation for transparency and sea surface temperature (SST). By Applying these equations to 5 satellite images of the same season, the transparency and SST in summer of 1985, 1991, 1996 and 2000 is estimated. Consequently, the transparency had increased until 2000 and then decreased in 2002. The SST, on the other hand, shows no remarkable trend.

• 한국어류학회지
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• 제32권3호
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• pp.143-147
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• 2020

2019년 1월부터 12월까지 서해5도 주변해역에서 채집된 홍어 379개체의 위내용물 조성을 조사하였다. 홍어의 체반장은 5.9~34.5 cm의 범위를 보였고, 새우류가 가장 우점한 먹이생물 분류군으로 나타났으며, 그 다음으로 어류의 비율이 높았고, 그 외 집게류, 갑각류, 두족류 등이 낮은 비율로 섭식되었다. 새우류의 비율은 하계에서 가장 낮은 비율을 보였고, 동계에서는 높았으며, 어류는 하계에서는 높았고, 동계에서는 낮게 나타났다.

• 해양환경안전학회지
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• 제16권2호
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• pp.153-159
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• 2010

본 연구는 1969~2007년간 한국 전체의 어업생산통계자료에서 멸치 및 미역 생산량 중 1990~2007년간 동해남부해역의 변동 양상을 파악하다. 이를 위하여 국립수산과학원의 같은 기간의 207선 수온자료를 이용하였다. 표층수온의 저온화 시기가 4월이면 미역 생장에 호영향을 주어 미역의 생산량이 많고, 그 시기가 6월이면 멸치에 악영향을 주어 멸치의 생산량이 적게 나타났다. 반대로 표층수온의 고온화 시기가 4월이면 미역 생장에 악영향을 주어 미역의 생산량은 적었고, 그 시기가 6월이면 멸치에 호영향을 주어 멸치의 생산량이 많았다. 표층 수온이 고온화 되면 멸치 생산량은 증가하고, 표층수온이 저온화 되면 미역 생산량은 증가하는 것으로 나타났다.

• 한국석유지질학회:학술대회논문집
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• 대한자원환경지질학회/한국석유지질학회/한국암석학회 2000년도 추계공동학술발표회 초록집
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• pp.80-80
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• 2000

• 한국수산과학회지
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• 제44권5호
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• pp.506-515
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• 2011

To elucidate demersal organism community structure, abundance, and biomass by period and region in the Uljin marine ranching area, otter trawl surveys were conducted at six stations from February 2008 to December 2009. During the survey period, a total of 118 species was collected in the Uljin marine ranching area, including 76 pisces, 27 mollusca and 15 crustaceans. The average abundance of individuals was 806 ind./$m^2$ and average biomass was 31,853 g/m2. The numbers of species, species richness, individuals per area and biomass per area were higher in 2009 than in 2008. Cluster and MDS analysis, based on a Bray-Curtis similarity matrix of fourth root transformed data of number of species and individuals per area, showed division into two different groups of demersal organisms in 2008 (Group 1) and one demersal organism community in 2009 (Group 2). From cluster and MDS analysis using the similarity of the demersal community among six stations, the Uljin marine ranching area was divided into Group A (St. 2, St. 4, St. 5 and St. 6) and Group B (St. 1 and St. 3).

• 수산해양기술연구
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• 제58권4호
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• pp.326-333
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• 2022

To provide information needed for managing fish resources and protecting the ecosystem of Cheonsu Bay, bimonthly variations in species composition and abundance of fish eggs and larvae were investigated. The samples were collected by using bongo net at three different stations from February 2020 to December 2021. Fish eggs were divided into Engrualis japonicas and unidentified eggs, of which Engragulis japonicus accounted for 85.6% of the total eggs collected. A total of 21 species representing 17 families and 6 orders were collected. The three dominant species were Gobiidae spp, Thryssa hamiltonii and E. japonicus and these three species accounted for 74.1% in the total number of individuals. The number of species was highest in August, 2020 and lowest in February, 2020 and 2021; the number of individuals was highest in August, 2020 and lowest in February, 2020. Temporal changes in the abundances of pelagic eggs and larval fishes corresponded with temperature.

• 한국환경과학회지
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• 제12권2호
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• pp.139-144
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• 2003

The Yellow River began ceasing affected by natural factors and the unreasonable human activities. The flow broke in the Yellow River and water and sediment flowing into the sea decreased, which lowered the speed of newly formed wetland extending to the sea. The water environment deteriorated; Its composing structure tended to be unsteady; The biologic diversity decreased and wetland function reduced. To ensure that the Yellow River delta and its ecosystem develops sustainablly, it is significant to reduce times and days of the ceasing, keep certain runoff and sediments in the river to the sea and make its watercourse stable.

• 한국산학기술학회논문지
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• 제10권4호
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• pp.785-794
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• 2009

워게임모델에서 가상환경격자정보에 관한 개선과 구축기법을 연구하였다. 가상환경자료는 지상, 해상, 공중으로 구분하여 관리 및 운용한다. 가상환경자료는 지리정보와 지형형태정보로 구축 및 관리한다. 지리정보는 격자(Grid) 형태로서 격자위치좌표와 수심을 파일로 관리한다. 그 격자정보파일의 수심값을 이동가능대표값(GCV)으로 개선하고, 조석차가 심한지역에 대해서 동적가상환경구축기법을 제안하였다. 제안된 시스템 의 구현 및 시험을 통하여 동적 가상환경을 워게임모델에 적용이 가능하다는 것을 알 수 있었다.